Download: • Wide Input Bandwidth – 200 MHz Using Internal Local Oscillator • TECHNICAL DATARF Amplifier Transistor • Muting Operational Amplifier • Complete Dual Conversion

Order this document by MC3363/D The MC3363 is a single chip narrowband VHF FM radio receiver. It is a dual conversion receiver with RF amplifier transistor, oscillators, mixers, LOW POWER quadrature detector, meter drive/carrier detect and mute circuitry. The MC3363 also has a buffered first local oscillator output for use with frequency DUAL CONVERSION synthesizers, and a data slicing comparator for FSK detection. FM RECEIVER • Wide Input Bandwidth – 200 MHz Using Internal Local Oscillator Wide Input Bandwidth – 450 MHz Using External Local Oscillator SEMICONDUCTOR • TECHNICAL DATARF Amplifier Transistor • Muting Operational Amplifier • Complete Dual Conversion • Low Voltage: VCC = 2.0 V to 6.0 Vdc • Low Drain Current: ICC = 3.6 mA (Typical) at VCC = 3.0 V, Excluding RF Amplifier Transistor • Excellent Sensitivity: Input 0.3 µV (Typical) for 12 dB SINAD Using Internal RF Amplifier Transistor DW SUFFIX • Data Shaping Comparator PLASTIC PACKAGE • Received Signal Strength Indicator (RSSI) with 60 dB CASE 751F(SO-28L) Dynamic Range • Low Number of External Parts Required • Manufactured in Motorola′s MOSAIC Process Technology ORDERING INFORMATION Operating Device Temperature Range Package MC3363DW TA = – 40 to +85°C SO–28L Figure 1. Pin Connections and Representative Block Diagram 1st Mixer Input 1 28 1st Mixer Input Base 2 27 Varicap Control Emitter 3 26 1st LO Tank Collector 4 25 1st LO Tank 2nd LO Emitter 5 24 1st LO Output 2nd LO Base 6 23 1st Mixer Output 2nd Mixer Output 7 22 2nd Mixer Input VCC 8 21 2nd Mixer Input Limiter Input 9 20 VEE Limiter Decoupling 10 19 Mute Output Limiter Decoupling 11 18 Comparator Output Meter Drive (RSSI) 12 17 Comparator Input Carrier Detect 13 16 Recovered Audio Quadrature Coil 14 15 Mute Input Motorola, Inc. 1996 Rev 0 MOTOROLA ANALOG IC DEVICE DATA 1 + – – +, MAXIMUM RATINGS (TA = 25°C unless otherwise noted) Rating Pin Symbol Value Unit Power Supply Voltage 8 VCC(max) 7.0 Vdc Operating Supply Voltage Range 8 VCC 2.0 to 6.0 Vdc (Recommended) Input Voltage (VCC = 5.0 Vdc) 1, 28 V1–28 1.0 Vrms Mute Output Voltage 19 V19 – 0.7 to 8.0 Vpk Junction Temperature – TJ 150 °C Operating Ambient Temperature Range – TA – 40 to +85 °C Storage Temperature Range – Tstg – 65 to +150 °C ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, fo = 49.7 MHz, Deviation = ±3.0 kHz, TA = 25°C, Mod 1.0 kHz, test circuit of Figure 2 unless otherwise noted) Characteristic Pin Min Typ Max Units Drain Current (Carrier Detect Low) 8 – 4.5 8.0 mA –3.0 dB Limiting Sensitivity (RF Amplifier Not Used) – 0.7 2.0 µVrms Input For 12 dB SINAD – 0.3 – 20 dB S/N Sensitivity (RF Amplifier Not Used) – 1.0 – 1st Mixer Input Resistance (Parallel – Rp) 1, 28 – 690 – Ω 1st Mixer Input Capacitance (Parallel – Cp) 1, 28 – 7.2 – pF 1st Mixer Conversion Voltage Gain (Avc1, Open Circuit) – 18 – dB 2nd Mixer Conversion Voltage Gain )Avc2, Open Circuit) – 21 – 2nd Mixer Input Sensitivity (20 dB S/N) (10.7 MHz i/p) 21 – 10 – µVrms Limiter Input Sensitivity (20 dB S/N) (455 kHz i/p) 9 – 100 – RF Transistor DC Current Drain 4 1.0 1.5 2.5 mAdc Noise Output Level (RF Signal = 0 mV) 16 – 70 – mVrms Recovered Audio (RF Signal Level = 1.0 mV) 16 120 200 – mVrms THD of Recovered Aduio (RF Signal = 1.0 mV) 16 – 2% – % Detector Output Impedance 16 – 400 – Ω Series Equivalent Input Impedance 1 – 450– – j350 Data (Comparator) Output Voltage – High 18 – – VCC Vdc Data (Comparator) Output Voltage – Low 0.1 0.1 – Data (Comparator) Threshold Voltage Difference 17 70 110 150 mV Meter Drive Slope 12 70 100 135 nA/dB Carrier Detect Threshold (Below VCC) 12 0.53 0.64 0.77 Vdc Mute Output Impedance – High 19 – 10 – MΩ Mute Output Impedance – Low – 25 – 2 MOTOROLA ANALOG IC DEVICE DATA,

Figure 2. MOTOROLA ANALOG IC DEVICE DATA 3 Figure 2. Test Circuit

VCC = 5.0 Vdc Ferronics 12–345–K Core CRF 1: muRata SFE 10.7 mA 1st Mixer Input 1000 pF 2.6 or Equivalent 50 MHz

CRF 2: muRata CFU 455D

or Equivalent L1 0.41µHL1: Coilcraft UNI 10/142 10–1/2 Turns

LC1: Toko 7MC8128Z

1 28 33 pF L1 2 27 3 26 From PLL Phase Deetector 4 25 5 24 120 pF To PLL Phase Detector 6 23 10.245 M + 7 22 CRF 1 10µF0.1 CRF2821 10.7 MHz 10 k 10k920 0.1 10 19 Mute Output 0.1 11 18 Comparator Output 0.1 390 k 12 17 10 k 5.0 k 13 16 Recovered Audio 5.0 k Output 14 15 0.01 0.01 68 k 10 k 1.0 k LC1 Comparator Test Input 0.01 Carrier Detect Output Mute Input + – – +, CIRCUIT DESCRIPTION parallel LC tank is needed externally from Pin 14 to VCC. A 68 The MC3363 is a complete FM narrowband receiver from kΩ shunt resistance is included which determines the peak RF amplifier to audio preamp output. The low voltage dual separation of the quadrature detector; a smaller value will conversion design yields low power drain, excellent lower the Q and expand the deviation range and linearity, but sensitivity and good image rejection in narrowband voice and decrease recovered audio and sensitivity. data link applications. A data shaping circuit is available and can be coupled to In the typical application, the input RF signal is amplified the recovered audio output of Pin 16. The circuit is a by the RF transistor and then the first mixer amplifies the comparator which is designed to detect zero crossings of signal and converts the RF input to 10.7 MHz. This IF signal FSK modulation. Data rates of up to 35000 baud are is filtered externally and fed into the second mixer, which detectable using the comparator. Best sensitivity is obtained further amplifies the signal and converts it to a 455 kHz IF when data rates are limited to 1200 baud maximum. signal. After external bandpass filtering, the low IF is fed into Hysteresis is available by connecting a high-valued resistor the limiting amplifier and detection circuitry. The audio is from Pin 17 to Pin 18. Values below 120 kΩ are not recovered using a conventional quadrature detector. recommended as the input signal cannot overcome the Twice-IF filtering is provided internally. hysteresis. The input signal level is monitored by meter drive circuitry The meter drive circuitry detects input signal level by which detects the amount of limiting in the limiting amplifier. monitoring the limiting of the limiting amplifier stages. The voltage at the meter drive pin determines the state of the Figure 5 shows the unloaded current at Pin 12 versus input carrier detect output, which is active low. power. The meter drive current can used directly (RSSI) or can be used to trip the carrier detect circuit at a specified APPLICATIONS INFORMATION input power. The first local oscillator is designed to serve as the VCO in A muting op amp is provided and can be triggered by the a PLL frequency synthesized receiver. The MC3363 can carrier detect output (Pin 13). This provides a carrier level operate together with the MC145166/7 to provide a two-chip triggered squelch circuit which is activated when the RF input ten–channel frequency synthesized receiver in the 46/49 at the desired input frequency falls below a present level. The cordless telephone band. The MC3363 can also be used with level at which this occurs is determined by the resistor placed the MC14515X series of CMOS PLL synthesizers and between the meter drive output (Pin 12) and VCC. Values MC120XX series of ECL prescalers in VHF frequency between 80–130 kΩ are recommended. This type of squelch synthesized applications to 200 MHz. is pictured in Figures 3 and 4. For single channel applications the first local oscillator can Hysteresis is available by connecting a high-valued be crystal controlled. The circuit of Figure 4 has been used resistor Rh between Pins 12 and 13. The formula is: successfully up to 60 MHz. For higher frequencies an Hyst = V / (Rh x 10–7) dB external oscillator signal can be injected into Pins 25 and/or CC 26 — a level of approximately 100 mVrms is recommended. The meter drive can also be used directly to drive a meter The first mixer′s transfer characteristic is essentially flat to or to provide AGC. A current to voltage converter or other 450 MHz when this approach is used (keeping a constant linear buffer will be needed for this application. 10.7 MHz IF frequency). The second local oscillator isaAsecond possible application of the op amp would be in a Colpitts type which is typically run at 10.245 MHz under noise triggered squelch circuit, similar to that used with the crystal control. MC3357/MC3359/MC3361B FM IFs. In this case the op amp The mixers are doubly balanced to reduce spurious would serve as an active noise filter, the output of which responses. The first and second mixers have conversion would be rectified and compared to a reference on a squelch gains of 18 dB and 21 dB (typical), respectively. Mixer gain is gate. The MC3363 does not have a dedicated squelch gate, stable with respect to supply voltage. For both conversions, but the NPN RF input stage or data shaping comparator the mixer impedances and pin layout are designed to allow might be used to provide this function if available. The op the user to employ low cost, readily available ceramic filters. amp is a basic type with the inverting input and the output Following the first mixer, a 10.7 MHz ceramic bandpass available. This application frees the meter drive to allow it to filter is recommended. The 10.7 MHz filtered signal is then be used as a linear signal strength monitor. fed into the second mixer input Pin 21, the other input Pin 22 The circuit of Figure 4 is a complete 50 MHz receiver from being connected to VCC. antenna input to audio preamp output. It uses few The 455 kHz IF is filtered by a ceramic narrow bandpass components and has good performance. The receiver filter then fed into the limiter input Pin 9. The limiter has 10 µV operates on a single channel and has input sensitivity of sensitivity for –3.0 dB limiting, flat to 1.0 MHz. 0.3 µV for 12 dB SINAD. The output of the limiter is internally connected to the quadrature detector, including a quadrature capacitor. A NOTE: For further application and design information, refer to AN980. 4 MOTOROLA ANALOG IC DEVICE DATA, + – – +

Figure 3. MOTOROLA ANALOG IC DEVICE DATA 5 Figure 3. Typical Application in a PLL Frequency Synthesized Receiver

VCC = 5.0 Vdc T1 0.41µH27 pF 2.0T 0.41µHCRF 1: muRata SFE 10.7 mA or Equivalent RF Input CRF 2: muRata CFU 455D or Equivalent L1: Coilcraft UNI 10/142 10 1/2 Turns 49.670 to 1 28 49.970 MHz 0.01 LC1: Toko 7MC8128Z 33 pF 2 27 0.001 3 26 390 From PLL Phase Detector 4 25 50 pF 5 24 To 120 pF CF1 MC145166/7 10.245M623 Dual PLL 0.1µF+ µ Frequency7 22 10 FCRF 1 3.0 k Synchrsizer 8 21 120 pF 9 20 10 k 0.1 10 19 0.1 VCC (Regulated) 11 18 Data Output 0.001 12 17 µ Pin 27 Pull–Up10 H 200 k 10 k 8.2 k Volume Control Resistor 13 16 + 3.3 k to 20 k Mute 0.01 Cr Pin 26 Control 14 15 0.01 L = 0.08µH39 k 20 k 100 k + Pin 25 f osc: 200 MHz Recovered Audio LC1 1.0µHOutput Pin 24 L = 680µHC= 180 pF NOTE: Pull Up resistor is used to run the oscillator above 50 MHz. 10.5T,

Figure 4.

6 MOTOROLA ANALOG IC DEVICE DATA

Figure 4. Single Channel Narrowband FM Receiver at 49.67 MHz

RF Input 49.67 MHz 50 Ω MC3363DW 0.01 39 pF 1.0 k pF 1 28 0.01 0.68 µH 20 k2 27 1.0 k pF 3 26 0.68 µH X2 300 Ω 0.22 µH 4 25 1.0 k 120 pF 3.0 k 20k524 2.0–7.0 Vdc 5.0–25 pF L.O. Out VCC 6 23 (optional)50 pF 4.7 µH 4.7 µH 10.01 X1 7 22 F2X 15 pF 8 21 F1 3.3 µH 10 µH 8.0 Ω Spkr Squelch 9 20 Adjust 0.1 10 19 MC34119D 0.1 0.1 1.0 k pF 11 181850 k 12 17 + 2 7 8.2 k 0.1 5.0 µF 13 16 + + 3 6 10 k 9.1 M 1.0 µF 14 15 0.1 100 µF4 5 LC1 0.022 P1 10 k 100 k 100 k 139 k 50 k 15 k F1 – 455 kHz ceramic filter, R in = Rout = 1.5 kΩ to 2.0 kΩ 2N4402 R MuRata CFU455X or CFW455X, suffix denotes bandwidthLED F2 – 10.7 MHz ceramic filter, Rin = Rout = 330Ω MuRata SFE10.7MJ–A, SFA10.7MF5, or SFE10.7MS2A. F2X – 10.7 MHz crystal filter, FOX 10M20A or equivalent. + Crystal filters improve adjacent channel and second µ image (unwanted 48.76 MHz) rejection. Sensitivity is1.0 F 23 F2 Carrier degraded very slightly with this circuit. Detect LC1 – 455 kHz quadrature tank circuit; Toko 7MC8128Z 22 Indicator P1 – Volume control, miniature potentiometer, logarithmic VCC taper. 21 X11 – 10.245 MHz fundamental mode crystal, load capacity 32 pF. X2 – 38.97 MHz, 3rd overtone crystal, series mode. Standard 10.7 MHz Filter 0.68 µH adjustable coil; Coilcraft M1287–A 0.22 µH adjustable coil; Coilcraft M1175–A VCC – VLED RLED is used to adjust LED current: I LED ≈ RLED + – – +,

Figure 5. MOTOROLA ANALOG IC DEVICE DATA 7 Figure 5. Circuit Schematic

1.0 k 1.0 k 400 400 100 1.4 k 24 23 76 1 28 26 Bias Bias 1.0 k Bias 1514 19 2.0 k Bias Bias 16 17 20 Bias,

Figure 6. PC Board Component View

with High Performance Crystal Filter Figure 7. PC Board Circuit Side View

BNC

39p SM .22 X2 .68 µH µH X1 120p 4.7 SM .01 µH 5 – 25P 4.7 µH .1 50p

SM

F2

X

F1 15p SM 3.3µH 5–25P 10 .1 .1 µH .1 .1 .1 10K 100K 1.0 .022 5.0 9,1M 8.2K 39K 51K 100.1 15K P1 LC1 2N 4402 50K1.0

RLED

100K RL SPKR

MC3363DW Figure 8. PC Board Component Side Ground Plane SPKR MC3363DW

3.000 8 MOTOROLA ANALOG IC DEVICE DATA 50K 1K 1000p 1000p MC3363DW .01 3K 68µH20K 20K 10K .001 Vcc Gnd Vcc Gnd 3.000 RF IN RF IN,

OUTLINE DIMENSIONS DW SUFFIX PLASTIC PACKAGE CASE 751F–04

(SO-28L) NOTES:

ISSUE E 1. DIMENSIONING AND TOLERANCING PER–A– ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER. 28 15 3. DIMENSION A AND B DO NOT INCLUDE 14X P MOLD PROTRUSION.4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) –B– 0.010 (0.25) MBMPER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE 1 14 DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. 28X D MILLIMETERS INCHES 0.010 (0.25) MTASBMS DIM MIN MAX MIN MAXA 17.80 18.05 0.701 0.711

R X 45 B 7.40 7.60 0.292 0.299

C 2.35 2.65 0.093 0.104

C D 0.35 0.49 0.014 0.019

F 0.41 0.90 0.016 0.035 –T– G 1.27 BSC 0.050 BSC 26X G SEATING J 0.23 0.32 0.009 0.013 PLANE K 0.13 0.29 0.005 0.011

K FM0808P10.01 10.55 0.395 0.415

R 0.25 0.75 0.010 0.029

J MOTOROLA ANALOG IC DEVICE DATA 9

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