Схема включения
                            MC3361B
     
                  LOW POWER NARROWBAND FM IF
     
     The MC3361B   includes   an  Oscillator,  Mixer,  Limiting  Amplifier,
Quadrature Discriminator,  Active Filter,  Squelch,  Scan Control and  Mute
Switch. This device is designed for use in FM dual conversion communication
equipment.
     The MC3361Boffer the following features:
     - Operates from 2,0V to 8,0V supply
     - Excellent Sensitiviti: Input Limiting Voltage:-3dB=2,6mkV Typ
     - Low Drain Current 3,9mA Typ @ Vcc=4,0 Vdc
     - Low Number of External Parts Required
     - Operating Friequency Up to 60 MHz
     
    MAXIMUM RATING (Ta=25C, unless otherwise noted)
     Power Supply Voltage                 Pin4          Vcc=10Vdc max
     Operating Supply Voltage Range       Pin4          Vcc=2,0...8,0Vdc
     Detector Input Voltage               Pin8          1,0Vp-p
     Input Voltage (Vcc4,0V)              Pin16         1,0Vrms
     Mute Function                        Pin14         -0,5...+5,0Vpk
     Junction Function                                  Tj=+150C
     Operation Ambient Temperature Range                Ta=-30...+70C
     
     ELECTRICAL CHARACTERISTIC (Vcc=4,0Vdc, Fo=10,7MHz, Fmod=!,0kHz, Ta=25C)
     Drain Current (No Signal)             Pin4            Min/Typ/Max
                 Squelch Off                              2,9/3,9/4,9mA
                 Squelch On                               4,4/5,4/6,4mA
     Recovered Audio Output Voltage (Vin=10mVrms) Pin9    130/160/200mVrms
     Input Limiting Voltage (-3,0dB Limiting)     Pin16   -/2,6/6,0 mkV
     Total Garmonic Distortion                    Pin9        0,86%
     Recovered Output Voltage (No Input Signal)   Pin9    60/120/250mVrms
     Drop Voltage AF Gain Loss                    Pin9    -3,0/-0,6/- dB
     Detector Output Impedance                                450 Ohm
     Filter Gain (10kHz, Vin=0,3mVrms)                      40/50/- dB
     Filter Output Voltage                        Pin11    1,0/1,3/1,6 Vdc
     Mute Function Low                            Pin14     -/30/50 Ohm
     Mute Function High                           Pin14     1,0/11/-MOhm
     Scan Function Low (Mute Off, V12=1,0Vdc)     Pin13     -/ 0 /0,4 Vdc
     Scan Function High (Mute On, V12=Gnd)        Pin13     3,0/3,5/- Vdc
     Trigger Hysteresis                                      -/45/100 mV
     Mixer Conversion Gain                        Pin3           28 dB
     Mixer Input Resistance                       Pin16          3,3k
     Mixer Input Capacitance                      Pin16          2,2pF