DESCRIPTION
FM local oscillation voltage is set up low relativity, for NEW FCC. S D IP -24-300-1.778 FEATURES
* Operating supply voltage range: VCC=1.8~10V (Tamb=25°C) * For NEW FCC * FM/AM and MPX integrated in a single-chip. * Build in FM/AM IF count buffer. FM: 1.3375MHz (1/8 dividing) AM: 450kHz * Build in mute circuit for IF count output according to field strength. * Build in FM MPX VCO circuit * Build in FM/AM OSC buffer output for DTS applications. * Build in AM low cut circuit * Build in stereo indicator. * Low supply current. (VCC=3V, Tamb=25°C) ICCq (FM)=11.0mA (Typ.) ICCq (AM)=7.5mA (Typ.) SSOP-24-300-0.65 ORDERING INFORMATION Part No. SA2104C SA2104CS Package SDIP-24-300-1.778 SSOP-24-300-0.65 BLOCK DIAGRAM 24 21 FM FM RFOUT OSC 19 OSC OUT 18 17 ST LED IF REQ 15 MPX IN 23 RF VCC 2 FM FM RF RFIN 1 RF GND 20 AM OSC AM OSC FM OSC BUF ST SW IF REQ AF ST/MO FM/AM FM MIX BUF Level det IF BUFF 1/8 Stereo Decoder 14 LPF1 13 LPF2 11 AM DET MUTE ROUT 12 LOUT 22 AM RFIN AM AM FM MIX...
Silan
