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| Order this document by MC3363/D Low Power Dual Conversion FM Receiver The MC3363 is a single chip narrowband VHF FM radio receiver. It is a dual conversion receiver with RF amplifier transistor, oscillators, mixers, quadrature detector, meter drive/carrier detect and mute circuitry. The MC3363 also has a buffered first local oscillator output for use with frequency synthesizers, and a data slicing comparator for FSK detection. * Wide Input Bandwidth - 200 MHz Using Internal Local Oscillator Wide Input Bandwidth - 450 MHz Using External Local Oscillator * RF Amplifier Transistor MC3363 LOW POWER DUAL CONVERSION FM RECEIVER SEMICONDUCTOR TECHNICAL DATA * * * * * * * * * 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 V (Typical) for 12 dB SINAD Using Internal RF Amplifier Transistor Data Shaping Comparator Received Signal Strength Indicator (RSSI) with 60 dB Dynamic Range Low Number of External Parts Required Manufactured in Motorolas MOSAIC(R) Process Technology Device MC3363DW DW SUFFIX PLASTIC PACKAGE CASE 751F (SO-28L) ORDERING INFORMATION Operating Temperature Range TA = - 40 to +85C Package SO-28L Figure 1. Pin Connections and Representative Block Diagram 1st Mixer Input Base Emitter Collector 2nd LO Emitter 2nd LO Base 2nd Mixer Output VCC Limiter Input Limiter Decoupling Limiter Decoupling Meter Drive (RSSI) Carrier Detect Quadrature Coil 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 1st Mixer Input Varicap Control 1st LO Tank 1st LO Tank 1st LO Output 1st Mixer Output 2nd Mixer Input 2nd Mixer Input VEE Mute Output Comparator Output Comparator Input Recovered Audio Mute Input - + + - 17 16 15 (c) Motorola, Inc. 1996 Rev 0 MOTOROLA ANALOG IC DEVICE DATA 1 MC3363 MAXIMUM RATINGS (TA = 25C unless otherwise noted) Rating Power Supply Voltage Operating Supply Voltage Range (Recommended) Input Voltage (VCC = 5.0 Vdc) Mute Output Voltage Junction Temperature Operating Ambient Temperature Range Storage Temperature Range Pin 8 8 1, 28 19 - - - Symbol VCC(max) VCC V1-28 V19 TJ TA Tstg Value 7.0 2.0 to 6.0 1.0 - 0.7 to 8.0 150 - 40 to + 85 - 65 to + 150 Unit Vdc Vdc Vrms Vpk C C C ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, fo = 49.7 MHz, Deviation = 3.0 kHz, TA = 25C, Mod 1.0 kHz, test circuit of Figure 2 unless otherwise noted) Characteristic Drain Current (Carrier Detect Low) -3.0 dB Limiting Sensitivity (RF Amplifier Not Used) Input For 12 dB SINAD 20 dB S/N Sensitivity (RF Amplifier Not Used) 1st Mixer Input Resistance (Parallel - Rp) 1st Mixer Input Capacitance (Parallel - Cp) 1st Mixer Conversion Voltage Gain (Avc1, Open Circuit) 2nd Mixer Conversion Voltage Gain )Avc2, Open Circuit) 2nd Mixer Input Sensitivity (20 dB S/N) (10.7 MHz i/p) Limiter Input Sensitivity (20 dB S/N) (455 kHz i/p) RF Transistor DC Current Drain Noise Output Level (RF Signal = 0 mV) Recovered Audio (RF Signal Level = 1.0 mV) THD of Recovered Aduio (RF Signal = 1.0 mV) Detector Output Impedance Series Equivalent Input Impedance Data (Comparator) Output Voltage - High ( p ) p g g Data (C D t (Comparator) Output Voltage - L t ) O t t V lt Low Data (Comparator) Threshold Voltage Difference Meter Drive Slope Carrier Detect Threshold (Below VCC) Mute Output Impedance - High M te O tp t Impedance - Lo Mute Output Low 21 9 4 16 16 16 16 1 18 17 12 12 19 1, 28 1, 28 Pin 8 Min - - - - - - - - - - 1.0 - 120 - - - - 0.1 01 70 70 0.53 - - Typ 4.5 0.7 0.3 1.0 690 7.2 18 21 10 100 1.5 70 200 2% 400 450- j350 - 0.1 01 110 100 0.64 10 25 Max 8.0 2.0 - - - - - - - - 2.5 - - - - - VCC - 150 135 0.77 - - Vdc mV nA/dB Vdc M mAdc mVrms mVrms % Vrms pF dB Units mA Vrms 2 MOTOROLA ANALOG IC DEVICE DATA Figure 2. Test Circuit VCC = 5.0 Vdc Ferronics 12-345-K Core 1000 pF 2.6 1st Mixer Input 50 MHz CRF 1: muRata SFE 10.7 mA or Equivalent CRF 2: muRata CFU 455D or Equivalent L1 0.41 H L1: Coilcraft UNI 10/142 10-1/2 Turns LC1: Toko 7MC8128Z 33 pF L1 0.1 12 11 + - - + MOTOROLA ANALOG IC DEVICE DATA 1 28 27 26 25 24 2 3 4 5 From PLL Phase Deetector 120 pF 6 23 22 21 To PLL Phase Detector + CRF 1 10.7 MHz 0.1 10 9 20 19 18 7 MC3363 10.245 M 0.1 10 k 10 k CRF 2 8 10 F Mute Output Comparator Output 390 k 17 0.1 10 k 13 14 16 5.0 k 5.0 k 15 Figure 2. 68 k LC1 0.01 0.01 Recovered Audio Output 10 k 1.0 k Comparator Test Input 0.01 Carrier Detect Output Mute Input 3 MC3363 CIRCUIT DESCRIPTION The MC3363 is a complete FM narrowband receiver from RF amplifier to audio preamp output. The low voltage dual conversion design yields low power drain, excellent sensitivity and good image rejection in narrowband voice and data link applications. In the typical application, the input RF signal is amplified by the RF transistor and then the first mixer amplifies the signal and converts the RF input to 10.7 MHz. This IF signal is filtered externally and fed into the second mixer, which further amplifies the signal and converts it to a 455 kHz IF signal. After external bandpass filtering, the low IF is fed into the limiting amplifier and detection circuitry. The audio is recovered using a conventional quadrature detector. Twice-IF filtering is provided internally. The input signal level is monitored by meter drive circuitry which detects the amount of limiting in the limiting amplifier. The voltage at the meter drive pin determines the state of the carrier detect output, which is active low. parallel LC tank is needed externally from Pin 14 to VCC. A 68 k shunt resistance is included which determines the peak separation of the quadrature detector; a smaller value will lower the Q and expand the deviation range and linearity, but decrease recovered audio and sensitivity. A data shaping circuit is available and can be coupled to the recovered audio output of Pin 16. The circuit is a comparator which is designed to detect zero crossings of FSK modulation. Data rates of up to 35000 baud are detectable using the comparator. Best sensitivity is obtained when data rates are limited to 1200 baud maximum. Hysteresis is available by connecting a high-valued resistor from Pin 17 to Pin 18. Values below 120 k are not recommended as the input signal cannot overcome the hysteresis. The meter drive circuitry detects input signal level by monitoring the limiting of the limiting amplifier stages. Figure 5 shows the unloaded current at Pin 12 versus input power. The meter drive current can used directly (RSSI) or can be used to trip the carrier detect circuit at a specified input power. A muting op amp is provided and can be triggered by the carrier detect output (Pin 13). This provides a carrier level triggered squelch circuit which is activated when the RF input at the desired input frequency falls below a present level. The level at which this occurs is determined by the resistor placed between the meter drive output (Pin 12) and VCC. Values between 80 - 130 k are recommended. This type of squelch is pictured in Figures 3 and 4. Hysteresis is available by connecting a high-valued resistor Rh between Pins 12 and 13. The formula is: Hyst = VCC / (Rh x 10 - 7) dB The meter drive can also be used directly to drive a meter or to provide AGC. A current to voltage converter or other linear buffer will be needed for this application. A second possible application of the op amp would be in a noise triggered squelch circuit, similar to that used with the MC3357/MC3359/MC3361B FM IFs. In this case the op amp would serve as an active noise filter, the output of which would be rectified and compared to a reference on a squelch gate. The MC3363 does not have a dedicated squelch gate, but the NPN RF input stage or data shaping comparator might be used to provide this function if available. The op amp is a basic type with the inverting input and the output available. This application frees the meter drive to allow it to be used as a linear signal strength monitor. The circuit of Figure 4 is a complete 50 MHz receiver from antenna input to audio preamp output. It uses few components and has good performance. The receiver operates on a single channel and has input sensitivity of V for 12 dB SINAD. APPLICATIONS INFORMATION The first local oscillator is designed to serve as the VCO in a PLL frequency synthesized receiver. The MC3363 can operate together with the MC145166/7 to provide a two-chip ten-channel frequency synthesized receiver in the 46/49 cordless telephone band. The MC3363 can also be used with the MC14515X series of CMOS PLL synthesizers and MC120XX series of ECL prescalers in VHF frequency synthesized applications to 200 MHz. For single channel applications the first local oscillator can be crystal controlled. The circuit of Figure 4 has been used successfully up to 60 MHz. For higher frequencies an external oscillator signal can be injected into Pins 25 and/or 26 -- a level of approximately 100 mVrms is recommended. The first mixers transfer characteristic is essentially flat to 450 MHz when this approach is used (keeping a constant 10.7 MHz IF frequency). The second local oscillator is a Colpitts type which is typically run at 10.245 MHz under crystal control. The mixers are doubly balanced to reduce spurious responses. The first and second mixers have conversion gains of 18 dB and 21 dB (typical), respectively. Mixer gain is stable with respect to supply voltage. For both conversions, the mixer impedances and pin layout are designed to allow the user to employ low cost, readily available ceramic filters. Following the first mixer, a 10.7 MHz ceramic bandpass filter is recommended. The 10.7 MHz filtered signal is then fed into the second mixer input Pin 21, the other input Pin 22 being connected to VCC. The 455 kHz IF is filtered by a ceramic narrow bandpass filter then fed into the limiter input Pin 9. The limiter has 10 V sensitivity for - 3.0 dB limiting, flat to 1.0 MHz. 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. t0.3 4 MOTOROLA ANALOG IC DEVICE DATA Figure 3. Typical Application in a PLL Frequency Synthesized Receiver VCC = 5.0 Vdc T1 0.41 H 2.0T 0.41 H 1 28 10.5T 27 pF RF Input 49.670 to 49.970 MHz 33 pF 0.001 3 26 25 24 23 22 2 27 MOTOROLA ANALOG IC DEVICE DATA CRF 1: muRata SFE 10.7 mA or Equivalent CRF 2: muRata CFU 455D or Equivalent L1: Coilcraft UNI 10/142 10 1/2 Turns LC1: Toko 7MC8128Z 390 4 0.01 From PLL Phase Detector 50 pF 120 pF 6 7 5 CF1 10.245 M 0.1 F CRF 1 + MC3363 10 F 3.0 k To MC145166/7 Dual PLL Frequency Synchrsizer 8 21 20 19 120 pF 9 10 k VCC (Regulated) 0.1 10 0.1 - + 11 18 Data Output 10 H 8.2 k Pin 27 Volume Control + - 0.001 12 17 16 200 k 13 14 10 k 0.01 15 Pull-Up Resistor 3.3 k to 20 k + 0.01 20 k Cr Pin 26 L = 0.08 H + 1.0 H Pin 25 Recovered Audio Output Pin 24 f osc: 200 MHz Mute Control 39 k 100 k Figure 3. L = 680 H C = 180 pF LC1 NOTE: Pull Up resistor is used to run the oscillator above 50 MHz. 5 Figure 4. Single Channel Narrowband FM Receiver at 49.67 MHz MC3363DW 1 28 + - 50 k - + 12 17 6 0.01 0.01 2 3 26 27 RF Input 49.67 MHz 50 0.68 H 0.68 H 3.0 k 5.0-25 pF 4.7 H 4.7 H 20 k X2 300 20 k 39 pF 1.0 k pF 1.0 k pF 4 25 24 23 22 0.22 H 120 pF 5 6 7 1.0 k 2.0-7.0 Vdc 50 pF 15 pF 3.3 H 10 H F2X VCC L.O. Out (optional) 10.01 8 21 20 19 X1 F1 9 8.0 Spkr Squelch Adjust 0.1 10 MC34119D 1.0 k pF 1 8 0.1 11 18 0.1 + 5.0 F 1.0 F 0.1 + 8.2 k 9.1 M 14 15 13 16 2 3 4 7 6 5 0.1 + 100 F MC3363 10 k LC1 100 k 0.022 P1 100 k 10 k 50 k 139 k 15 k 2N4402 RLED + 23 VCC F2 1.0 F 22 Carrier Detect Indicator 21 Figure 4. Standard 10.7 MHz Filter F1 - 455 kHz ceramic filter, R in = Rout = 1.5 k to 2.0 k MuRata CFU455X or CFW455X, suffix denotes bandwidth F2 - 10.7 MHz ceramic filter, R in = Rout = 330 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 image (unwanted 48.76 MHz) rejection. Sensitivity is degraded very slightly with this circuit. LC1 - 455 kHz quadrature tank circuit; Toko 7MC8128Z P1 - Volume control, miniature potentiometer, logarithmic taper. X11 - 10.245 MHz fundamental mode crystal, load capacity 32 pF. X2 - 38.97 MHz, 3rd overtone crystal, series mode. 0.68 H adjustable coil; Coilcraft M1287-A 0.22 H adjustable coil; Coilcraft M1175-A RLED is used to adjust LED current: I LED VCC - VLED RLED MOTOROLA ANALOG IC DEVICE DATA Figure 5. Circuit Schematic 27 1.0 k 8 100 24 6 21 22 5 28 23 1.0 k 400 400 1.4 k 7 26 Bias 1 MOTOROLA ANALOG IC DEVICE DATA 12 13 15 14 Bias Bias 16 20 17 Bias 25 Bias 4 1.0 k 19 2 Bias MC3363 3 9 2.0 k 10 11 18 Figure 5. 7 MC3363 Figure 6. PC Board Component View with High Performance Crystal Filter BNC Figure 7. PC Board Circuit Side View .22 H X2 68 H 39p SM .68 H 1000p 20K 20K 1K .01 .01 X1 120p SM 1000p 4.7 H 5 - 25P 4.7 H .001 .1 50p SM F1 MC3363DW 15p SM 5-25P .1 .1 10 H F2 X 3.3 H .1 .1 50K .1 3K 10K 10K 9,1M 100K 8.2K 39K .1 1.0 .022 5.0 100 P1 50K RL 51K 15K 1.0 RLED 2N 4402 LC1 100K Vcc Vcc SPKR Gnd MC3363DW 3.000I 8 MOTOROLA ANALOG IC DEVICE DATA 3.000 I RF IN 300 Gnd SPKR MC3363DW Figure 8. PC Board Component Side Ground Plane RF IN MC3363 OUTLINE DIMENSIONS DW SUFFIX PLASTIC PACKAGE CASE 751F-04 (SO-28L) ISSUE E 15 14X -A- 28 -B- 1 14 P 0.010 (0.25) M B M NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 17.80 18.05 7.40 7.60 2.35 2.65 0.35 0.49 0.41 0.90 1.27 BSC 0.23 0.32 0.13 0.29 0_ 8_ 10.01 10.55 0.25 0.75 INCHES MIN MAX 0.701 0.711 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 BSC 0.009 0.013 0.005 0.011 0_ 8_ 0.395 0.415 0.010 0.029 28X D M 0.010 (0.25) TA S B S M R C X 45 _ 26X G K -T- SEATING PLANE F J MOTOROLA ANALOG IC DEVICE DATA 9 MC3363 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; P.O. Box 5405, Denver, Colorado 80217. 303-675-2140 or 1-800-441-2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. 81-3-5487-8488 MfaxTM: RMFAX0@email.sps.mot.com - 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 10 MC3363/D MOTOROLA ANALOG IC DEVICE DATA |
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