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Order this document by MC3371/D LOW POWER The MC3371 and MC3372 perform single conversion FM reception and consist of an oscillator, mixer, limiting IF amplifier, quadrature discriminator, FM IF active filter, squelch switch, and meter drive circuitry. These devices are designed for use in FM dual conversion communication equipment. The MC3371/MC3372 are similar to the MC3361/MC3357 FM IFs, except that a signal strength indicator replaces the scan function controlling driver which is in the MC3361/MC3357. The MC3371 is designed for the use of parallel LC components, while the MC3372 is designe...
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Order this document by MC3371/D

LOW POWER

The MC3371 and MC3372 perform single conversion FM reception and consist of an oscillator, mixer, limiting IF amplifier, quadrature discriminator, FM IF active filter, squelch switch, and meter drive circuitry. These devices are designed for use in FM dual conversion communication equipment. The MC3371/MC3372 are similar to the MC3361/MC3357 FM IFs, except that a signal strength indicator replaces the scan function controlling driver which is in the MC3361/MC3357. The MC3371 is designed for the use of parallel LC components, while the MC3372 is designed for use with either a 455 kHz ceramic discriminator, or parallel LC components. 1 These devices also require fewer external parts than earlier products. The MC3371 and MC3372 are available in dual–in–line and surface mount P SUFFIX PLASTIC PACKAGE packaging. CASE 648 • Wide Operating Supply Voltage Range: VCC = 2.0 to 9.0 V • Input Limiting Voltage Sensitivity of –3.0 dB • Low Drain Current: ICC = 3.2 mA, @ VCC = 4.0 V, Squelch Off 16 • 1Minimal Drain Current Increase When Squelched • Signal Strength Indicator: 60 dB Dynamic Range D SUFFIXPLASTIC PACKAGE • Mixer Operating Frequency Up to 100 MHz CASE 751B • Fewer External Parts Required than Earlier Devices (SO–16) MAXIMUM RATINGS 1 Rating Pin Symbol Value Unit DTB SUFFIX Power Supply Voltage4V(max) 10 Vdc PLASTIC PACKAGECC CASE 948F RF Input Voltage (VCC 4.0 Vdc) 16 V16 1.0 Vrms (TSSOP–16) Detector Input Voltage 8 V8 1.0 Vpp Squelch Input Voltage 12 V12 6.0 Vdc ORDERING INFORMATION (VCC 4.0 Vdc) Operating Mute Function 14 V14 –0.7 to 10 Vpk Device Temperature Range Package Mute Sink Current 14 l14 50 mA MC3371D SO–16 Junction Temperature – TJ 150 °C MC3371DTB TSSOP–16 Storage Temperature Range – Tstg –65 to +150 °C MC3371P TA = –30° to +70°C Plastic DIP NOTES: 1. Devices should not be operated at these values. The “Recommended Operating MC3372D SO–16 Conditions” table provides conditions for actual device operation. 2. ESD data available upon request. MC3372DTB TSSOP–16 MC3372P Plastic DIP PIN CONNECTIONS 1 16 Mixer Input 1 16 Mixer Input Crystal Osc Crystal Osc 2 15 Gnd 2 15 Gnd Mixer Output 3 14 Mute Mixer Output 3 14 Mute VCC 4 MC3371 13 Meter Drive VCC 4 MC3372 13 Meter Drive Limiter Input 5 (Top View) 12 Squelch Input Limiter Input 5 (Top View) 12 Squelch Input 6 11 Filter Output Decoupling 6 11 Filter Output Decoupling 7 10 Filter Input Limiter Output 7 10 Filter Input Quad Coil89Recovered Audio Quad Input89Recovered Audio Motorola, Inc. 1996 Rev 1 MOTOROLA ANALOG IC DEVICE DATA 1, RECOMMENDED OPERATING CONDITIONS Rating Pin Symbol Value Unit Supply Voltage (@ TA = 25°C) 4 VCC 2.0 to 9.0 Vdc ( –30°C TA +75°C) 2.4 to 9.0 RF Input Voltage 16 Vrf 0.0005 to 10 mVrms RF Input Frequency 16 frf 0.1 to 100 MHz Oscillator Input Voltage 1 Vlocal 80 to 400 mVrms Intermediate Frequency – fif 455 kHz Limiter Amp Input Voltage 5 Vif 0 to 400 mVrms Filter Amp Input Voltage 10 Vfa 0.1 to 300 mVrms Squelch Input Voltage 12 Vsq 0 or 2 Vdc Mute Sink Current 14 lsq 0.1 to 30 mA Ambient Temperature Range – TA –30 to +70 °C AC ELECTRICAL CHARACTERISTICS (VCC = 4.0 Vdc, fo = 58.1125 MHz, df = ±3.0 kHz, fmod = 1.0 kHz, 50 Ω source, flocal = 57.6575 MHz, Vlocal = 0 dBm, TA = 25°C, unless otherwise noted) Characteristic Pin Symbol Min Typ Max Unit Input for 12 dB SINAD – VSIN µVrms Matched Input – (See Figures 11, 12 and 13) – 1.0 – Unmatched Input – (See Figures 1 and 2) – 5.0 15 Input for 20 dB NQS – VNQS – 3.5 – µVrms Recovered Audio Output Voltage – AFO mVrms Vrf = –30 dBm 120 200 320 Recovered Audio Drop Voltage Loss – AFloss dB Vrf = –30 dBm, VCC = 4.0 V to 2.0 V –8.0 –1.5 – Meter Drive Output Voltage (No Modulation) 13 MDrv Vdc Vrf = –100 dBm MV1 – 0.3 0.5 Vrf = –70 dBm MV2 1.1 1.5 1.9 Vrf = –40 dBm MV3 2.0 2.5 3.1 Filter Amp Gain – AV(Amp) dB Rs = 600 Ω , fs = 10 kHz, Vfa = 1.0 mVrms 47 50 – Mixer Conversion Gain – AV(Mix) dB Vrf = –40 dBm, RL = 1.8 kΩ 14 20 – Signal to Noise Ratio – s/n dB Vrf = –30 dBm 36 67 – Total Harmonic Distortion – THD % Vrf = –30 dBm, BW = 400 Hz to 30 kHz – 0.6 3.4 Detector Output Impedance 9 ZO – 450 – Ω Detector Output Voltage (No Modulation) 9 DVO Vdc Vrf = –30 dBm – 1.45 – Meter Drive 13 MO µA/dB Vrf = –100 to –40 dBm – 0.8 – Meter Drive Dynamic Range 13 MVD dB RFIn – 60 – IFIn (455 kHz) – 80 – Mixer Third Order Input Intercept Point – ITOMix dBm f1 = 58.125 MHz f2 = 58.1375 MHz – –22 – Mixer Input Resistance 16 Rin – 3.3 – kΩ Mixer Input Capacitance 16 Cin – 2.2 – pF 2 MOTOROLA ANALOG IC DEVICE DATA,

DC ELECTRICAL CHARACTERISTICS (VCC = 4.0 Vdc, TA = 25°C, unless otherwise noted)

Characteristic Pin Symbol Min Typ Max Unit Drain Current (No Input Signal) 4 mA Squelch Off, Vsq = 2.0 Vdc lcc1 – 3.2 4.2 Squelch On, Vsq = 0 Vdc lcc2 – 3.6 4.8 Squelch Off, VCC = 2.0 to 9.0 V dlcc1 – 1.0 2.0 Detector Output (No Input Signal) 9 V9 Vdc DC Voltage, V8 = VCC 0.9 1.6 2.3 Filter Output (No Input Signal) 11 Vdc DC Voltage V11 1.5 2.5 3.5 Voltage Change, VCC = 2.0 to 9.0 V dV11 2.0 5.0 8.0 Trigger Hysteresis – Hys 34 57 80 mV

Figure 1. MC3371 Functional Block Diagram and Test Fixture Schematic

RF Input RSSI Output VCC = 4.0 Vdc FilterIn 51 k 0.1 Sq 1.0 µFIn FilterOut C1 0.01 51 AF Out 1.0 µF 470 to Audio Power Amp 0.01 Mute 510 k 8.2 k 16 15 14 13 12 11 10 9 Filter – Amp AF Amp Squelch Trigger + with Hysteresis Demodulator Mixer Limiter Amp 51 k 53 k Oscillator 1.8k12345678Quad Coil TOKO 0.1 0.1 2A6597 HK (10 mm) 22 0.33 57.6575 20 k or MHz 7MC–8128Z (7 mm) 0.001 muRata CFU455D2 0.1 or equivalent

MOTOROLA ANALOG IC DEVICE DATA 3

,

Figure 2. MC3372 Functional Block Diagram and Test Fixture Schematic

RF Input RSSI Output VCC = 4.0 Vdc FilterIn 51 k 0.1 SqIn FilterOut 1.0 µF C1 0.01 51 AF Out 1.0 µF 470 to Audio Power Amp Mute 510 k 0.01 8.2 k 16 15 14 13 12 11 10 9 Filter – Amp AF + Amp Squelch Trigger with Hysteresis Demodulator Mixer Limiter Amp 53 k Oscillator1234567815 C13 C14 R10 0.1 27 1.8 k R11 22 0.33 51 k Ceramic 57.6575 C12 R12 Resonator MHz 0.1 4.3 k 0.001 muRata CDB455C16 muRata CFU455D2 C15 or 0.1 equivalent 4 MOTOROLA ANALOG IC DEVICE DATA,

TYPICAL CURVES

(Unmatched Input)

Figure 3. Total Harmonic Distortion

versus Temperature Figure 4. RSSI versus RF Input 5.0 70 T = 75°C VCC = 4.0 Vdc

A

4.0 RF Input = –30 dBm fo = 10.7 MHz 50 TA = –30°C 3.0 40 TA = 25°C 2.0 30 VCC = 4.0 Vdc20 fo = 10.7 MHz 1.0 10 TA = 75°C

T

00A= –30°C –55 –35 –15 5.0 25 45 65 85 105 125 –140 –120 –100 –80 –60 –40 –20 0 20 TA, AMBIENT TEMPERATURE (°C) RF INPUT (dBm)

Figure 5. RSSI Output versus Temperature Figure 6. Mixer Output versus RF Input

60 0 54 –30 dBm –10 100 MHz 48 Desired Products VCC = 4.0 Vdc42 –20fo = 10.7 MHz 36 –30 100 MHz 3rd Order Products 24 –70 dBm –40 18 –50 12 V –60 CC = 4.0 Vdc 6.0 –110 dBm TA = 27°C 0 –70 –55 –35 –15 5.0 25 45 65 85 105 125 – 70 – 60 – 50 – 40 – 30 – 20 – 10 0 10 TA, AMBIENT TEMPERATURE (°C) RF INPUT (dBm)

Figure 7. Mixer Gain versus Supply Voltage Figure 8. Mixer Gain versus Frequency

30 40 27 TA = 75°C VCC = 4.0 Vdc 24 TA = 27°C 30 RFin = –40 dBm21 TA = –30°C TA = 25°C 15 20 –10 dBm 12 –15 dBm 9.0 fo = 10.7 MHz –20 dBm RFin –40 dBm 5.0 dBm 6.0 1.8 kΩ Load 0 dBm 3.0 –5.0 dBm0001.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10 1.0 10 100 1000 VCC, SUPPLY VOLTAGE (V) f, FREQUENCY (MHz)

MOTOROLA ANALOG IC DEVICE DATA 5

RSSI OUTPUT( µ A) RSSI OUTPUT( µ A) THD, TOTAL HARMONIC DISTORTION (%) MIXER GAIN (dB) MIXER OUTPUT (dBm) RSSI OUT(µ A), MC3371 PIN FUNCTION DESCRIPTION OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz. MC3371 at fRF = 10.7 MHz (see Figure 11). Internal Equivalent Pin Symbol Circuit Description Waveform 1 OSC1 The base of the Colpitts oscillator. Use a high impedance and low capacitance probe or a “sniffer” to view the wave– form without altering the frequency. Typical level is 450 mVpp.

VCC

1 15 k OSC1 2 OSC2 2 The emitter of the Colpitts oscillator. OSC2 Typical signal level is 200 mVpp. Note that the signal is somewhat distorted µA compared to that on Pin 1. 3 MXOut Output of the Mixer. Riding on the 455 kHz is the RF carrier component. 4 Mixer The typical level is approximately VCC Out 60 mVpp. 1.5k4VCC Supply Voltage –2.0 to 9.0 Vdc is the operating range. VCC is decoupled to100 µA ground. 5 IFIn Input to the IF amplifier after passing 5 through the 455 kHz ceramic filter. The IFIn signal is attenuated by the filter. The typical level is approximately 1.8k653 k 50 mVpp. DEC1 7 51k6DEC1 DEC2 IF Decoupling. External 0.1 µF 7 DEC2 60 µA capacitors connected to VCC. 8 Quad Quadrature Tuning Coil. Composite Coil 8 (not yet demodulated) 455 kHz IF Quad Coil signal is present. The typical level is V 500 mVpp.CC 50 µA 6 MOTOROLA ANALOG IC DEVICE DATA, MC3371 PIN FUNCTION DESCRIPTION (continued) OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz. MC3371 at fRF = 10.7 MHz (see Figure 11). Internal Equivalent Pin Symbol Circuit Description Waveform 9 RA Recovered Audio. This is a composite FM demodulated output having signal and carrier component. The typical level is 1.4 Vpp.

VCC

RAOut 9 The filtered recovered audio has the carrier component removed and is 100 µA typically 800 mVpp. 10 FilIn Filter Amplifier Input10 FilterIn

VCC

30 µA 11 FilOut Filter Amplifier Output. The typical signal level is 400 mVpp.

VCC

240 µA FilterOut 12 SqIn Squelch Input. See discussion in application text. SqIn 12 µA MOTOROLA ANALOG IC DEVICE DATA 7, MC3371 PIN FUNCTION DESCRIPTION (continued) OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz. MC3371 at fRF = 10.7 MHz (see Figure 11). Internal Equivalent Pin Symbol Circuit Description Waveform 13 RSSI RSSI Output. Referred to as the VCC Received Signal Strength Indicator or RSSI. The chip sources up to 60 µA 1.8 k over the linear 60 dB range. This pin may be used many ways, such as: AGC, meter drive and carrier triggered squelch circuit. Bias RSSIOut 14 MUTE Mute Output. See discussion in 14 Mute or application text. SqOut 40 k 15 Gnd Ground. The ground area should be continuous and unbroken. In a two– 15 sided layout, the component side hasGnd the ground plane. In a one–sided layout, the ground plane fills around the traces on the circuit side of the board and is not interrupted. 16 MIXIn VCC Mixer Input – Series Input Impedance: @ 10 MHz: 309 – j33 Ω 16 @ 45 MHz: 200 – j13 Ω MixerIn 3.3 k 10 k *Other pins are the same as pins in MC3371. 8 MOTOROLA ANALOG IC DEVICE DATA, MC3372 PIN FUNCTION DESCRIPTION OPERATING CONDITIONS VCC = 4.0 Vdc, RFIn = 100 µV, fmod = 1.0 kHz, fdev = 3.0 kHz. MC3372 at fRF = 45 MHz (see Figure 13). Internal Equivalent Pin Symbol Circuit Description Waveform 5 IFIn IF Amplifier Input IFIn 6 53k6DEC1 DEC IF Decoupling. External 0.1 µF 60 µ capacitors connected to VA CC. 7 IFOut IF Amplifier Output Signal level is typically 300 mVpp. VCC 7 IFOut 50 µA 120 µA 8 QuadIn Quadrature Detector Input. Signal 8 level is typically 150 mVpp. QuadIn

VCC

10 50 µA 9 RA Recovered Audio. This is a composite FM demodulated output having signal and carrier components. Typical level is 800 mVpp.

VCC

200 9 RAOut The filtered recovered audio has the 100 µA carrier signal removed and is typically 500 mVpp. MOTOROLA ANALOG IC DEVICE DATA 9,

Figure 9. MC3371 Circuit Schematic

4 MixerIn MixerOut Meter Out FilterIn VCC 16 3 13 10 12 Squelch In 1 11 – OSC1 Filter 14Out + Squelch Out OSC2XXYBias 200 µA 100 BiasµA 15 Gnd48Quad V InCC 10XYX5Y200 9 IFIn RAOut 1.8k653 k DEC1 7 51 k DEC2 100 µA

Figure 10. MC3372 Circuit Schematic

4 MixerIn MixerOut Meter Out FilterIn VCC 16 3 13 10 12 Squelch In 1 11 – OSC1 Filter 14Out + Squelch Out OSC2XXYBias 100 Bias 200 µA µA 15 Gnd48Quad V InCC 10XYX5Y200 IFIn RAOut 6 53 k

DEC

IFOut 100 µA 10 MOTOROLA ANALOG IC DEVICE DATA, CIRCUIT DESCRIPTION amplifier has approximately 92 dB of gain. The MC3371 and MC3372 are different in the limiter and quadrature detector The MC3371 and MC3372 are low power narrowband FM circuits. The MC3371 has a 1.8 kΩ and a 51 kΩ resistor receivers with an operating frequency of up to 60 MHz. Its low providing internal dc biasing and the output of the limiter is voltage design provides low power drain, excellent internally connected, both directly and through a 10 pF sensitivity, and good image rejection in narrowband voice capacitor to the quadrature detector; whereas, in the and data link applications. MC3372 these components are not provided internally. Thus, This part combines a mixer, an IF (intermediate frequency) in the MC3371, no external components are necessary to limiter with a logarithmic response signal strength indicator, a match the 455 kHz ceramic filter, while in the MC3372, quadrature detector, an active filter and a squelch trigger external 1.8 kΩ and 51 kΩ biasing resistors are needed circuit. In a typical application, the mixer amplifier converts an between Pins 5 and 7, respectively (see Figures 12 and 13). RF input signal to a 455 kHz IF signal. Passing through an In the MC3371, a parallel LCR quadrature tank circuit is external bandpass filter, the IF signal is fed into a limiting connected externally from Pin 8 to VCC (similar to the amplifier and detection circuit where the audio signal is MC3361). In the MC3372, a quadrature capacitor is needed recovered. A conventional quadrature detector is used. externally from Pin 7 to Pin 8 and a parallel LC or a ceramic The absence of an input signal is indicated by the discriminator with a damping resistor is also needed from presence of noise above the desired audio frequencies. This Pin 8 to VCC (similar to the MC3357). The above external “noise band” is monitored by an active filter and a detector. A quadrature circuitry provides 90° phase shift at the IF center squelch switch is used to mute the audio when noise or a frequency and enables recovered audio. tone is present. The input signal level is monitored by a meter The damping resistor determines the peak separation of drive circuit which detects the amount of IF signal in the the detector and is somewhat critical. As the resistor is limiting amplifier. decreased, the separation and the bandwidth is increased but the recovered audio is decreased. Receiver sensitivity is APPLICATIONS INFORMATION dependent on the value of this resistor and the bandwidth of the 455 kHz ceramic filter. The oscillator is an internally biased Colpitts type with the On the chip the composite recovered audio, consisting of collector, base, and emitter connections at Pins 4, 1 and 2 carrier component and modulating signal, is passed through respectively. This oscillator can be run under crystal control. a low pass filter amplifier to reduce the carrier component For fundamental mode crystals use crystal characterized and then is fed to Pin 9 which has an output impedance of parallel resonant for 32 pF load. For higher frequencies, use 450 Ω . The signal still requires further filtering to eliminate 3rd overtone series mode type crystals. The coil (L2) and the carrier component, deemphasis, volume control, and resistor RD (R13) are needed to ensure proper and stable further amplification before driving a loudspeaker. The operation at the LO frequency (see Figure 13, 45 MHz relative level of the composite recovered audio signal at Pin 9 application circuit). should be considered for proper interaction with an audio The mixer is doubly balanced to reduce spurious radiation. post amplifier and a given load element. The MC13060 is Conversion gain stated in the AC Electrical Characteristics recommended as a low power audio amplifier. table is typically 20 dB. This power gain measurement was The meter output indicates the strength of the IF level and made under stable conditions using a 50 Ω source at the the output current is proportional to the logarithm of the IF input and an external load provided by a 455 kHz ceramic input signal amplitude. A maximum source current of 60 µA is filter at the mixer output which is connected to the VCC (Pin 4) available and can be used to drive a meter and to detect a and IF input (Pin 5). The filter impedance closely matches the carrier presence. This is referred to as a Received Strength 1.8 kΩ internal load resistance at Pin 3 (mixer output). Since Signal Indicator (RSSI). The output at Pin 13 provides a the input impedance at Pin 16 is strongly influenced by a current source. Thus, a resistor to ground yields a voltage 3.3 kΩ internal biasing resistor and has a low capacitance, proportional to the input carrier signal level. The value of this the useful gain is actually much higher than shown by the resistor is estimated by (VCC(Vdc) – 1.0 V)/60 µA; so for standard power gain measurement. The Smith Chart plot in VCC = 4.0 Vdc, the resistor is approximately 50 kΩ and Figure 17 shows the measured mixer input impedance provides a maximum voltage swing of about 3.0 V. versus input frequency with the mixer input matched toaAsimple inverting op amp has an output at Pin 11 and the 50 Ω source impedance at the given frequencies. In order to inverting input at Pin 10. The noninverting input is connected assure stable operation under matched conditions, it is to 2.5 V. The op amp may be used as a noise triggered necessary to provide a shunt resistor to ground. Figures 11, squelch or as an active noise filter. The bandpass filter is 12 and 13 show the input networks used to derive the mixer designed with external impedance elements to discriminate input impedance data. between frequencies. With an external AM detector, the Following the mixer, a ceramic bandpass filter is filtered audio signal is checked for a tone signal or for the recommended for IF filtering (i.e. 455 kHz types having a presence of noise above the normal audio band. This bandwidth of ±2.0 kHz to ±15 kHz with an input and output information is applied to Pin 12. impedance from 1.5 kΩ to 2.0 kΩ). The 6 stage limiting IF MOTOROLA ANALOG IC DEVICE DATA 11, An external positive bias to Pin 12 sets up the squelch Another possible application of the squelch switch may trigger circuit such that the audio mute (Pin 14) is open or be as a carrier level triggered squelch circuit, similar to the connected to ground. If Pin 12 is pulled down to 0.9 V or MC3362/MC3363 FM receivers. In this case the meter below by the noise or tone detector, Pin 14 is internally output can be used directly to trigger the squelch switch shorted to ground. There is about 57 mV of hyteresis at when the RF input at the input frequency falls below the Pin 12 to prevent jitter. Audio muting is accomplished by desired level. The level at which this occurs is determined connecting Pin 14 to the appropriate point in the audio path by the resistor placed between the meter drive output between Pin 9 and an audio amplifier. The voltage at Pin 14 (Pin 13) and ground (Pin 15). should not be lower than –0.7 V; this can be assured by connecting Pin 14 to the point that has no dc component. Figure 11. Typical Application for MC3371 at 10.7 MHz VCC = 4.0 Vdc RSSI Output R2 10 k 1st IF 10.7 MHz from Input R3 + C9 Front End 100 k C2 + R4 C15 4.7 1.0 k 91 µF L1 8.2 µH D1 1N5817R11 TKANS9443HM R5 VR1 (Squelch Control) L2 560 6.8 µH ±6% 4.7 k 10 kR6 C3 C4 560 R1 C17 0.1 0.001 C1 R7 R8 51 k 0.1 0.01 C5 4.7 k 3.3 k C7 C8 0.001 0.022 0.22 R9 AF Out VR2 510 k to Audio10 k 16 15 14 13 12 11 9 Power Amp10 Filter – AF Amp Amp Squelch Trigger + with Hysteresis Demodulator Mixer Limiter Amp 10 51 k 53 k Oscillator123451.8k678C10 T2: Toko 68 C12 C13C11 2A6597 HK (10 mm)10.245 0.1 0.1 R10 MHz 220 or 39 k 7MC–8128Z (7 mm) muRata C14 CFU455D2 0.1 or equivalent 12 MOTOROLA ANALOG IC DEVICE DATA,

Figure 12. Typical Application for MC3372 at 10.7 MHz

VCC = 4.0 Vdc RSSI Output R2 10 k 1st IF 10.7 MHz from Input + C9 Front End C2 + R4 C16 4.7 1.0 k 91 µF L1 8.2 µH R13 D1 1N5817TKANS9443HM R5 VR1 (Squelch Control) L2 560 6.8 µH ± 6% 4.7 k 10 kR6 C3 C4 560 R1 C6 0.1 0.001 R7 R8C1 51 k 0.1 0.01 C5 4.7 k 3.3 k C7 C8 0.001 0.022 0.22 R9 AF Out 510 k VR2 to Audio 10 k 16 15 14 13 12 11 10 9 Power Amp – Filter AF Amp Amp Squelch Trigger + with Hysteresis Demodulator Mixer Limiter Amp 10 53 k Oscillator12345678C10 C13R10 0.1 1.8k C14 10.245 C2 C12 R11 27p R12 muRata MHz 220 0.1 51 k 4.3 k CDB455C16 muRata C15 CFU455D2 0.1 or equivalent

MOTOROLA ANALOG IC DEVICE DATA 13

,

Figure 13. Typical Application for MC3372 at 45 MHz

RSSI Output VCC = 4.0 Vdc to Meter (Triplett – 100 kV) R2 12 k + C9 RF Input R3 10 45 MHz C17 100 k C2 + R4 C18 4.7 1.0 k L1 0.245 µH D1 1N5817 R5 VR1 (Squelch Control) Coilcraft 10 k 150–07J08 4.7 k R6 C3 C4 560 R14 C6 0.1 0.001 R7 R8 51 k 0.1 C5 4.7 k 3.3 k C7 C8 R1 0.220.001 0.022 C1 470 0.01 R9 AF Out 510 k VR2 to Audio 10 k 16 15 14 13 12 11 10 9 Power Amp Filter – AF Amp Amp Squelch Trigger + with Hysteresis Demodulator Mixer Limiter Amp 53 k Oscillator12345678C10 C13 R10 C16 30 C11 0.1 1.8 k 0.01 5.0 R11 C14 Coilcraft L2 51 k 27 143–13J12 0.84 µH C12 0.1 R12 muRata 4.3 k CDB455C16 44.545 R13 MHz 1.0 k muRata C15 CFU455D2 0.1 or equivalent

Figure 14. RSSI Output versus RF Input Figure 15. RSSI Output versus RF Input

3.5 3.5 3.0 3.0 2.5 2.5 2.0 2.0 1.5 1.5 fRF = 10.7 MHz fRF = 45 MHz 1.0 VCC = 4.0 Vdc 1.0 VCC = 4.0 Vdc Reference Figure 11 Reference Figure 13 0.5 0.500–120 –100 –80 –60 –40 –20 –120 –100 –80 –60 –40 –20 RF INPUT (dBm) 14 MOTOROLA ANALOG IC DEVICE DATA RSSI OUTPUT (Vdc) RSSI OUTPUT (Vdc),

Figure 16. S + N, N, AMR versus Input

S + N –10 fRF = 10.7 MHz –20 VCC = 4.0 V TA = 25°C –30 S + N 30% AM –40 –50

N

–60 –130 –110 –90 –70 –50 –30 –10 RF INPUT (dBm) * Reference Figures 11, 12 and 13

Figure 17. Mixer Input Impedance versus Frequency

+j50 +j25 +j100 +j150 VCC = 4.0 Vdc+j10 RF Input = –40 dBm +j250 +j500 10 25 50 100 150 250 500 45 MHz 10.7 MHz –j500 –j250 –j10 –j150 –j100 –j25 –j50

MOTOROLA ANALOG IC DEVICE DATA 15

S + N, N, AMR (dB),

Figure 18. MC3371 PC Board Component View with Matched Input at 10.7 MHz

COMPONENT SIDE VCC GNDCUT CUT GND .325 .325 + C9 J3 CFUVCC 455D 2 C11 C14 C13 C12 C10 INPUT IF AF OUT T2 XTAL 10.7 MHZ 10.245

MHZ

R10 J1 MC3371 C16 C15 VR2 J2 R8 C1

BNC

C R9 C2 L2 + BNC C8 R7 5 C3

MC3371 C7 R11 L1C4 J4

D1 METER IF 10.7 MHZ R6 CUTR5 FRONT END R4 .325

OUT

VR1 C17 R1 R2 R3 J3 VCC

Figure 19. MC3371 PC Board Circuit or Solder Side as Viewed through Component Side

SOLDER SIDE Above PC Board is laid out for the circuit in Figure 11. 16 MOTOROLA ANALOG IC DEVICE DATA,

Figure 20. MC3372P PC Board Component View with Matched Input at 10.7 MHz

COMPONENT SIDE VCC GND CUT CUT .325 .325 GND + C9 VCC R10 J3 C11 C15 R C12C CFU455D2 1 INPUT IF AF OUT CDB 1 C10 XTAL 1 10.7 MHZ455 3 10.245 C16 MHZ C14 R12J2 C17 J1MC3372 VR2 C16 R8 C1 BNC R9 L2C C2 BNC C8 5 C3 + L1

MC3372 C7 R7 R13C4 J4

D1 CUT IF 10.7 MHZ R6 R5 .325 FRONT END R4VR1 C6 R1 METER R2 R3 OUT J3 VCC

Figure 21. MC3372P PC Board Circuit or Solder Side as Viewed through Component Side

SOLDER SIDE Above PC Board is laid out for the circuit in Figure 12.

MOTOROLA ANALOG IC DEVICE DATA 17

,

OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648–08 ISSUE R

–A– NOTES:1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 16 9 3. DIMENSION L TO CENTER OF LEADS WHEN

B FORMED PARALLEL.4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.

1 8 5. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS

F DIM MIN MAX MIN MAXCLA0.740 0.770 18.80 19.55

B 0.250 0.270 6.35 6.85

S C 0.145 0.175 3.69 4.44

D 0.015 0.021 0.39 0.53 –T– SEATING F 0.040 0.70 1.02 1.77PLANE G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC

HKJMJ0.008 0.015 0.21 0.38 G K 0.110 0.130 2.80 3.30 D L 0.295 0.305 7.50 7.7416 PLM010 0 10

0.25 (0.010) MTAMS0.020 0.040 0.51 1.01

D SUFFIX PLASTIC PACKAGE CASE 751B–05

(SO–16)

ISSUE J

–A– NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI 16 9 Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE –B– P 8 PL MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) 1 8 0.25 (0.010) MBSPER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT

G MAXIMUM MATERIAL CONDITION.

MILLIMETERS INCHES DIM MIN MAX MIN MAX

F KRA9.80 10.00 0.386 0.393X 45 B 3.80 4.00 0.150 0.157

C 1.35 1.75 0.054 0.068

C D 0.35 0.49 0.014 0.019

F 0.40 1.25 0.016 0.049 –T– SEATING G 1.27 BSC 0.050 BSC PLANEMJJ0.19 0.25 0.008 0.009

D K 0.10 0.25 0.004 0.00916 PLM0707

0.25 (0.010) MTBSASP5.80 6.20 0.229 0.244R 0.25 0.50 0.010 0.019 18 MOTOROLA ANALOG IC DEVICE DATA,

OUTLINE DIMENSIONS DTB SUFFIX PLASTIC PACKAGE CASE 948F–01

(TSSOP–16)

ISSUE O

16X K REF 0.10 (0.004) MTUSVS0.15 (0.006) TUSNOTES:K 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

K1 2 CONTROLLING DIMENSION: MILLIMETER.

ÉÇÉÇÉÇ 3 DIMENSION A DOES NOT INCLUDE MOLD FLASH.16 9 PROTRUSIONS OR GATE BURRS. MOLD FLASH 2X L/2 J1 OR GATE BURRS SHALL NOT EXCEED 0.15ÉÇÇÉÇÉ (0.006) PER SIDE. 4 DIMENSION B DOES NOT INCLUDE INTERLEAD

B SÇECTÇIONÇ N–N FLASH OR PROTRUSION. INTERLEAD FLASH ORL –U– PROTRUSION SHALL NOT EXCEED J 0.25 (0.010) PER SIDE. PIN15DIMENSION K DOES NOT INCLUDE DAMBAR IDENT. PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN18EXCESS OF THE K DIMENSION AT MAXIMUM

N MATERIAL CONDITION.

0.25 (0.010) 6 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 0.15 (0.006) TUS7DIMENSION A AND B ARE TO BE DETERMINEDA M AT DATUM PLANE –W–. –V– MILLIMETERS INCHES

N DIM MIN MAX MIN MAX

A 4.90 5.10 0.193 0.200

F B 4.30 4.50 0.169 0.177

C ––– 1.20 ––– 0.047

DETAILED0.05 0.15 0.002 0.006F 0.50 0.75 0.020 0.030

G 0.65 BSC 0.026 BSC H 0.18 0.28 0.007 0.011 J 0.09 0.20 0.004 0.008

C –W– J1 0.09 0.16 0.004 0.006

K 0.19 0.30 0.007 0.012 K1 0.19 0.25 0.007 0.010 0.10 (0.004) L 6.40 BSC 0.252 BSC –T– SEATING H DETAILEM0808PLANEDG

MOTOROLA ANALOG IC DEVICE DATA 19

, Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1, P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447 Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488 Mfax: email is hidden – TOUCHTONE 602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 INTERNET: http://motorola.com/sps 20 ◊ MOTOROLA ANALOG IC DEVICMEC D3A37T1A/D]
15

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