MC3359
LOW POWER NARROW BAND FM IF
Include Oscillator, Mixer, Limiting Amplifier,AFC, Quadrature
Discriminator, Op/Amp, Squelch, Scan Control and Mute Switch. The MC3359 is
designed to detect narrowband FM signals using a 455kHz ceramic filter for
use in FM dual conversion communication equipment.The MC3359 has an additional limiting IF stage, an AFC output, and an
opposite polarity Brodcast Derector.The MC3359 also requres fewer external
parts.
FEATURES:
- Low Drain Current (3,6mA typ @ Vcc=6V)
- Exelent Sensitivity: Input Limiting Voltage: -3dB=2mkV typ
- Low Number of External Parts Required
MAXIMUM RATINGS (Ta=25C, unless otherwise noted)
Power Supply Voltage Pin4 Vcc=12Vdc
Operating Supply Voltage Range Pin4 Vcc=4...9Vdc
Input Voltage (Vcc>6V) Pin18 1.0Vrms
Mute Function Pin16 -0,7...12Vpk
Junction Temperature - Tj=150C
Operating Temperature Range - Ta=-30...+70C
ELECTRICAL CHARACTERISTICS
(Vcc=6Vdc Fo=10,7MHz dev=-+3kHz Fmod=1kHz Ta=25C unless otherwise notes)
Drain Current Min Typ Max
Squelch Off - 3,6mA 6mA
Squelch On - 5,4mA 7mA
Input for 20dB Quieting - 8mkVrms -
Input for -3dB Limiting - 2mkVrms -
Mixer Voltage Gain (Pin18 to Pin3,Open) - 46 -
Mixer Third Order Intercept, 50 Ohm Input - -1,0dBm -
Mixer Input resistnce - 3,6k -
Mixer Input Capacitance - 2,2pF -
Recovered Audio, Pin10 (Input Signal 1 mVrms) 450mVrms 700mVrms -
Detector Center Friequency Slope, Pin10 - 0,3V/kHz -
Afc Centre Slope, Pin11, Unlouded - 12V/kHz -
Filter Gain (10kHz Vin=5mV) 40dB 51dB -
Squelch Treshold, Through 10k to Pin14 - 0,62Vdc -
Scan Control Carrent, Pin15 Pin14 - High - 0,01mkA 1mkA
Pin14 - Low 2mA 2,4mA -
Mute Switch Impedance Pin14 - High - 5Ohm 10Ohm
Pin16 to Ground Pin14 - Low - 1,5MOhm -