Download: • P SUFFIXLow Drain Current: 3.6 mA (Typical) @ VCC = 6.0 Vdc PLASTIC PACKAGE

Order this document by MC3359/D

.includes oscillator, mixer, limiting amplifier, AFC, quadrature discriminator, op/amp, squelch, scan control, and mute switch. The MC3359 HIGH GAIN is designed to detect narrowband FM signals using a 455 kHz ceramic filter for use in FM dual conversion communications equipment. The MC3359 is LOW POWER similar to the MC3357 except that the MC3359 has an additional limiting IF FM IF stage, an AFC output, and an opposite polarity Broadcast Detector. The

MC3359 also requires fewer external parts. For low cost applications SEMICONDUCTOR

requiring VCC below 6.0 V, the MC3361BP,BD are recommended. For TECHNICAL DATA applications requiring a fixed, tuned, ceramic quadrature resonator, use the

MC3357. For applications requiring dual conversion and RSSI, refer to these

devices; MC3335, MC3362 and MC3363. • P SUFFIXLow Drain Current: 3.6 mA (Typical) @ VCC = 6.0 Vdc PLASTIC PACKAGE • Excellent Sensitivity: Input Limiting Voltage – CASE 707 – 3.0 dB = 2.0 µV (Typical) • Low Number of External Parts Required DW SUFFIX • For Low Voltage and RSSI, use the MC3371 PLASTIC PACKAGE

CASE 751D

(SO–20L)

ORDERING INFORMATION Figure 2. Pin Connections and Operating Functional Block Diagram Device Temperature Range Package RF

1 18

MC3359DW SO–20L Crystal Input TA = –30 to +70°C Osc. MC3359P Plastic DIP 2 17 Gnd

Mixer 16 Audio3 Output Mute 1.8kV415 ScanCC Control Limiter Limiter 5 14 Squelch Input Input Decoupling 6 13 Filter 52 k Output + 50 k Decoupling 7 12 Filter– Input 10 pF

Figure 1. Simplified Application in a Scanner Receiver Quadrature Demod

8 11 Input Demodulator Output

Figure 2. Demodulator 9 10 Recovered

VCC = 6.0 Vdc Filter Audio 10.245 MHz 0.1 µF 1 18 10.7 MHz CASE 707 Input VCC = 6.0 Vdc 68 pF 51 2 17 NC 1 20 NC 220 pF 51 k Ceramic 3 16 Mute 2 19

RF

Crystal Input Filter Osc. 3 18 Gnd 4 15 Scan Control Type MC3359 Mixer Audio4 17 CFU 5 14 Squelch Input 68 k Output Mute 455 D 50 k+ Scan 120 k .47 µF VCC 5 16 Control 6 13 Output 0.1 µF Inverting Squelch Limiter0.1 µF Sensitivity Input 6 15 Squelch 0.1 µF Op Amp 390 k Input 7 12 0.001 µF(Filter) 1N4148 Input Filter 0.001 µF 750 Decoupling 7 14 Output 68k811 Automatic Filter Frequency 18 k Decoupling 8 13 Control InputQuad Coil 9 10 Recovered Audio Quadrature Demod Toko 7.5 k Audio 0.01 µF Input 9 12 Output 0.01 µF Volume Type Demodulator Recovered 0.002 µF 10 k 7MC–8128Z Audio Filter 10 11 Audio 100 pF Out

CASE 751D

Motorola, Inc. 1996 Rev 3

MOTOROLA ANALOG IC DEVICE DATA 1

1.8 k Oscillator Mixer MC3359DW Broadcast Detector,

MAXIMUM RATINGS (TA = 25°C, unless otherwise noted)

Rating Pin Symbol Value Unit Power Supply Voltage 4 VCC(max) 12 Vdc Operating Supply Voltage Range 4 VCC 6 to 9 Vdc Input Voltage (VCC 6.0 Volts) 18 V18 1.0 Vrms Mute Function 16 V16 – 0.7 to 12 Vpk Junction Temperature – TJ 150 °C Operating Ambient Temperature Range – TA – 30 to + 70 °C Storage Temperature Range – Tstg – 65 to + 150 °C

ELECTRICAL CHARACTERISTICS (VCC = 6.0 Vdc, fo = 10.7 MHz, ∆f = ± 3.0 kHz, fmod = 1.0 kHz, 50 Ω source, TA = 25°C test circuit

of Figure 3, unless otherwise noted) Characteristics Min Typ Max Units Drain Current (Pins 4 and 8) Squelch Off – 3.6 6.0 mA Squelch On – 5.4 7.0 Input for 20 dB Quieting – 8.0 – µVrms Input for – 3.0 dB Limiting – 2.0 – µVrms Mixer Voltage Gain (Pin 18 to Pin 3, Open) – 46 – Mixer Third Order Intercept, 50 Ω Input – – 1.0 – dBm Mixer Input Resistance – 3.6 – kΩ Mixer Input Capacitance – 2.2 – pF Recovered Audio, Pin 10 450 700 – mVrms (Input Signal 1.0 mVrms) Detector Center Frequency Slope, Pin 10 – 0.3 – V/kHz AFC Center Slope, Pin 11, Unloaded – 12 – V/kHz Filter Gain (test circuit of Figure 3) 40 51 – dB Squelch Threshold, Through 10K to Pin 14 – 0.62 – Vdc Scan Control Current, Pin 15 Pin 14 – High – 0.01 1.0 µA Pin 14 – Low 2.0 2.4 – mA Mute Switch Impedance Pin 14 – High – 5.0 10 Ω Pin 16 to Ground Pin 14 – Low 1.5 – MΩ

Figure 3. Test Circuit VCC

10.245 MHz 0.1 µF Input 1 18 10.7 MHz 68 51 pF 2 17 Ceramic 220 pF Filter 2.4 k Audio Gen. 3 16 muRata 0.7 Vp–p CFU455D + or 4 15 I Kyocera KBF455P–20A 5 14 Squelch Input 10k613 Op Amp Output 0.1 µF 0.1 µF 1.0 M 1.0k712 Op Amp Input 1.0 µF 68k811 AFC Output Lp = 1.0 mH Cp = 120 pF Rp = 100 kΩ 9 10 Audio Output 7.5 k 100 pF 0.002 µF 2 MOTOROLA ANALOG IC DEVICE DATA,

Figure 4. Mixer Voltage Gain Figure 5. Limiting IF Frequency Response

400 0 Input o = 10.7 MHz VCC = 9.0 V 200 Output 0 = 455 kHz IF Output – 10 Output taken at Pin 3 with filter 100 VCC = 6.0 V – 20 Response Taken onremoved (open) a special prototype. 60 – 30 40 Terminals not available on – 40 standard device. – 50 10 IF Input for – 3 dB LImiting – 60 6.0 100 µV 4.0 – 70 0.04 0.1 1.0 10 40 0.1 1.0 10 100 INPUT, 50 Ω (mVrms) FREQUENCY [MHz]

Figure 6. Mixer Third Order Intermodulation Performance Figure 7. Detector and AFC Responses

20 8.0 VCC = 6.0 Vdc 10 7.0 Output taken at AFC Output Pin 11 0 Pin 3 with filter 6.0 removed – 10 VCC = 6.0 Vdc 5.0 – 20 4.0 Desired Products – 30 3.0 Detector Output Pin 10 – 40 2.0 – 50 1.0 3rd Order IM Products – 60 0 – 90 – 80 – 70 – 60 – 50 – 40 – 30 – 20 – 10 0 10 – 10 – 8.0 – 6.0 – 4.0 – 2.0 0 2.0 4.0 6.0 8.0 10 INPUT, 50 Ω [dBm] RELATIVE FREQUENCY [kHz]

Figure 8. Relative Mixer Gain Figure 9. Overall Gain, Noise, and AM Rejection

10 1000S+ N ± 3 KHz FM – 10 – 10 Derived using optimum L/C 25°C – 20 oscillator values and holding – 20 75°C IF frequency at 455 kHz VCC = 6.0 Vdc – 30 – 30 S + N (30% AM) – 40 – 40

N

– 50 – 50 – 60 – 60 0.1 1.0 10 100 0.001 0.01 0.1 1.0 10 100 FREQUENCY [MHz] INPUT [mVrms]

MOTOROLA ANALOG IC DEVICE DATA 3

RELATIVE GAIN [dB] OUTPUT, 1.8KΩ[dBm] OUTPUT, 1.8 KΩ [mVrms] RELATIVE OUTPUT [dB] RELATIVE OUTPUT [dB] OUTPUT [Vdc] INPUT LEVEL, 50 Ω [dBm],

Figure 10. Output Components of Signal, Figure 11. Audio Output and Total Current Noise, and Distortion Drain versus Supply Voltage

10 8.0 0.8 S + N + D 0 7.0 0.7fo= 10.7 MHz 6.0 Audio Output 0.6 – 10fm= 1 kHz ∆f = 3.0 kHz 5.0 0.5 – 20 Test circuit of I Figure 3. CC , Mute On 4.0 0.4 – 30 N + D 3.0 ICC, Mute Off 0.3 – 40 2.0 0.2

N

– 50 1.0 0.1 – 60000.001 0.01 0.1 1.0 10 100 4.0 5.0 6.0 7.0 8.0 9.0 INPUT [mVrms] VCC, SUPPLY VOLTAGE (Vdc)

Figure 12. L/C Oscillator, Temperature and Power Supply Sensitivity Figure 13. Op Amp Gain and Phase Response

VCC, SUPPLY VOLTAGE [Vdc] 5.8 5.9 6.0 6.1 6.2 10.706 70 1.0 M 1.0 M 10.704 60 0.1 µF 180 1.0 K 10.702 131.0 12 50 150

V

10.700 Phase Gain ref USE CIRCUIT ABOVE 40 FOR OPEN LOOP GAIN 120 10.698 AND PHASE (SOLID LINES) VCC 30 90 10.696 Temp 20 DOTTED CURVES TAKEN 6010.694 WITH CIRCUIT VALUES OF FIGURE 3. 10.692 10 30 VCC = 6.0 Vdc 10.6900020 30 40 50 60 70 1.0 K 10 K 100 K 1.0 M 10 M AMBIENT TEMPERATURE [°C] FREQUENCY [Hz]

Figure 14. L/C Oscillator Recommended Component Values Figure 15. The Op Amp as a Bandpass Filter

1000 10 1.0 VCC 0.001 µF V700 7.0 CCC1 R3 6.0 V C1 390 K 500 L 5.0 Vin – 13 1 4.0 0.8 GIVEN f = CENTER FREQUENCY 0.17 R1 0.001 µFLoVrms 18 K R2 + Vout 300 C 3.0 A(fo) = GAIN AT CENTER FREQUENCY 7504 Q Vref 200 C5 2 2.0 R3 fo C1 C5 0.6 R3 R1 100 1.0 2 A(fC o ) 70 0.7 R1 R30.4 R2 4Q2 R1 R3 50 0.5 30 0.3 0.2 20 0.2 10 0.1 0 5.0 7.0 10 20 30 50 70 100 1.0 2.0 5.0 10 20 50 100 OSCILLATOR FREQUENCY [MHz] FREQUENCY [kHz] 4 MOTOROLA ANALOG IC DEVICE DATA CAPACITANCE [pF] FREQUENCY [MHz] RELATIVE OUTPUT [dB] INDUCTANCE [ µ H] GAIN [dB] OUTPUT [Vrms] SUPPLY CURRENT (mAdc) PHASE [degrees] AUDIO OUTPUT (Vrms),

Figure 16. 100 k 100 k

33 k 1.6 k 1.6 k

MOTOROLA ANALOG IC DEVICE DATA 5 Figure 16. Representative Schematic Diagram

3 12 13 14 4 Q777k7k10 k 1.8 k Q605k3.5 k 50 k 20 k Q1 Q7 1 Q646 pF 6 pF Q75 Q2 Q15 Q16 Q73100 k 15 k Q65 2 Q3 Q4 Q5 Q6 Q71 20k5k20 k 15 Q66 50 k 18 3.6 k Q70 Q71 Q8 Q63Q11 Q675kQ9 Q10 Q12 Q76Q68 Q13 Q69 Q61 Q14 33 k 33 k 33 k 3.5 k 33 k 33 k 15 k Q627k50 k 2.5 k 750 Ω 50 k Oscillator – Mixer Op Amp Broadcast Detector Limiting IF Amplifier Detector and AFC Q17 Q22 Q37 Q45 Q48 Q46 Q59 10 pF Q47 11 Q18 100 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k 10 k Q39 Q49 Q50 Q40 10 Q19 Q35 Q36 Q41 Q42 Q51 Q2095Q25 Q27 Q29 Q31 Q33 Q52 Q55 Q26 Q28 Q30 Q32 Q34 Q43 Q44 Q56 7 1.8 k Q23 Q24 Q53 Q54 Q58 50 k Q21 10 k 33 k 33 k 33 k 33 k 33 k 10 k 10 33k5kQ57k, CIRCUIT DESCRIPTION limiting sensitivity of approximately 100 µV at Pin 5 and a The MC3359 is a low–power FM IF circuit designed useful frequency range of about 5 MHz as shown in Figure 5. primarily for use in voice–communication scanning receivers. The frequency limitation is due to the high resistance values It is also finding a place in narrowband data links. in the IF, which were necessary to meet the low power In the typical application (Figure 1), the mixer–oscillator requirement. The output of the limiter is internally connected combination converts the input frequency (10.7 MHz) down to the quadrature detector, including the 10 pF quadrature to 455 kHz, where, after external bandpass filtering, most of capacitor. Only a parallel L/C is needed externally from Pin 8 the amplification is done. The audio is recovered using a to VCC. A shunt resistance can be added to widen the peak conventional quadrature FM detector. The absence of an separation of the quadrature detector. input signal is indicated by the presence of noise above the The detector output is amplified and buffered to the audio desired audio frequencies. This “noise band” is monitored by output, Pin 10, which has an output impedance of an active filter and a detector. A squelch–trigger circuit approximately 300 Ω. Pin 9 provides a high impedance (50 k) indicates the presence of noise (or a tone) by an output which point in the output amplifier for application of a filter or can be used to control scanning. At the same time, an de–emphasis capacitor. Pin 11 is the AFC output, with high internal switch is operated which can be used to mute the gain and high output impedance (1 M). If not needed, it audio. should be grounded, or it can be connected to Pin 9 to double the recovered audio. The detector and AFC responses are APPLICATIONS INFORMATION shown in Figure 7. The oscillator is an internally biased Colpitts type with the Overall performance of the MC3359 from mixer input to collector, base, and emitter connections at Pin 4, 1 and 2, audio output is shown in Figure 9 and 10. The MC3359 can respectively. The crystal is used in fundamental mode, also be operated in “single conversion” equipment; i.e., the calibrated for parallel resonance at 32 pF load capacitance. mixer can be used as a 455 kHz amplifier. The oscillator is In theory this means that the two capacitors in series should disabled by connecting Pin 1 to Pin 2. In this mode, the be 32 pF, but in fact much larger values do not significantly overall performance is identical to the 10.7 MHz results of affect the oscillator frequency, and provide higher oscillator Figure 9. output. A simple inverting op amp is provided with an output at The oscillator can also be used in the conventional L/C Pin 13 providing dc bias (externally) to the input at Pin 12, Colpitts configuration without loss of mixer conversion gain. which is referred internally to 2.0 V. A filter can be made with This oscillator is, of course, much more sensitive to voltage external impedance elements to discriminate between and temperature as shown in Figure 12. Guidelines for frequencies. With an external AM detector, the filtered audio choosing L and C values are given in Figure 14. signal can be checked for the presence of either noise above The mixer is doubly balanced to reduce spurious the normal audio, or a tone signal. responses. The mixer measurements of Figure 4 and 6 were The open loop response of this op amp is given in made using an external 50 Ω source and the internal 1.8 k at Figure13. Bandpass filter design information is provided in Pin 3. Voltage gain curves at several VCC voltages are shown Figure 15. in Figure 4. The Third Order Intercept curves of Figure 6 are A low bias to Pin 14 sets up the squelch–trigger circuit so shown using the conventional dBm scales. Measured power that Pin 15 is high, a source of at least 2.0 mA, and the audio gain (with the 50 Ω input) is approximately 18 dB but the mute (Pin 16) is open–circuit. If Pin 14 is raised to 0.7 V by useful gain is much higher because the mixer input the noise or tone detector, Pin 15 becomes open circuit and impedance is over 3 kΩ. Most applications will use a 330 Ω Pin 16 is internally short circuited to ground. There is no 10.7 MHz crystal filter ahead of the mixer. For higher hysteresis. Audio muting is accomplished by connecting Pin frequencies, the relative mixer gain is given in Figure 8. 16 to a high–impedance ground–reference point in the audio Following the mixer, a ceramic bandpass filter is path between Pin 10 and the audio amplifier. No dc voltage is recommended. The 455 kHz types come in bandwidths from needed, in fact it is not desirable because audio “thump” ± 2 kHz to ± 15 kHz and have input and output impedances of would result during the muting function. Signal swing greater 1.5 k to 2.0 k. For this reason, the Pin 5 input to the 6 stage than 0.7 V below ground on Pin 16 should be avoided. limiting IF has an internal 1.8 k resistor. The IF hasa3dB 6 MOTOROLA ANALOG IC DEVICE DATA,

OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 707–02 ISSUE C

NOTES: 1. POSITIONAL TOLERANCE OF LEADS (D), SHALL BE WITHIN 0.25 (0.010) AT MAXIMUM 18 10 MATERIAL CONDITION, IN RELATION TO SEATING PLANE AND EACH OTHER.

B 2. DIMENSION L TO CENTER OF LEADS WHEN

1 9 FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH.

A MILLIMETERS INCHES

DIM MIN MAX MIN MAX

L C A 22.22 23.24 0.875 0.915B 6.10 6.60 0.240 0.260

C 3.56 4.57 0.140 0.180 D 0.36 0.56 0.014 0.022 F 1.27 1.78 0.050 0.070

NKG2.54 BSC 0.100 BSC J H 1.02 1.52 0.040 0.060F D SEATINGMJ0.20 0.30 0.008 0.012 PLANE HGK2.92 3.43 0.115 0.135L 7.62 BSC 0.300 BSC

M 0 15 0 15 N 0.51 1.02 0.020 0.040

DW SUFFIX PLASTIC PACKAGE CASE 751D–04

(SO–20L) –A– ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER 20 11 ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. –B– 10X P 4. MAXIMUM MOLD PROTRUSION 0.150 0.010 (0.25) MBM(0.006) PER SIDE.5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE 1 10 DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. 20X D

J MILLIMETERS INCHES

0.010 (0.25) MTASBSDIM MIN MAX MIN MAX A 12.65 12.95 0.499 0.510 B 7.40 7.60 0.292 0.299

F C 2.35 2.65 0.093 0.104

D 0.35 0.49 0.014 0.019 F 0.50 0.90 0.020 0.035

R X 45 G 1.27 BSC 0.050 BSC

J 0.25 0.32 0.010 0.012 K 0.10 0.25 0.004 0.009

CM0707P10.05 10.55 0.395 0.415

R 0.25 0.75 0.010 0.029 –T– SEATINGPLANE

G M18X K MOTOROLA ANALOG IC DEVICE DATA 7

, 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. How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 MFAX: email is hidden – TOUCHTONE 602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, INTERNET: http://Design–NET.com 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 8 ◊ MOTOROLA ANALOG IC DEMVICC3E35 D9/ADTA]

15