TA2149BN Datasheet | Toshiba

TA2149BN/BFN TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2149BN,TA2149BFN 3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System) TA2149BN, TA2149BFN are AM/FM 1 chip tuner ICs, which are designed for portable Radios and 3 V Head phone Radios. This is suitable for Digital Tuning System Applications. FM Local Oscillation Voltage is set up low relativity, for NEW FCC. Functions - - For NEW FCC. Suitable for bination with Digital Tuning System which is included IF Counter. - - Adjustable for IF count output sensitivity by external resistance of pin 17 (FM only). TA2149BFN One terminal type AM/FM IF count output for IF counter of Digital Tuning System. - - FM: 1.3375 MHz (1/8 dividing) AM: 450 k Hz - - - - Built-in Mute Circuit for IF count output. For adopting ceramic Discriminator, it is not necessary to adjust the FM Quad Detector Circuit. Built-in FM MPX VCO circuit. Built-in one terminal type AM/FM Local Oscillator Buffer Output for Digital Tuning System Applications. - Built-in 1/16 Pre-scaler for FM Local OSC Buffer. Built-in AM Low cut circuit. Low supply current. (VCC = 3 V, Ta = 25°C) ICCq (FM) = 13 m A (Typ.) ICCq (AM) = 8.5 m A (Typ.) Weight SDIP24-P-300-1.78: 1.2 g (Typ.) SSOP24-P-300-0.65A: 0.14 g (Typ.) - - - Operating Supply voltage range: VCC = 1.8~7 V (Ta = 25°C) Note 1: Handle with care to prevent devices from deteriorations by static electricity. 2001-12-21 TA2149BN/BFN Block Diagram H: MONO L: ST H: AM L: FM OSC BUFF OUT PSC SW IF OUT OPEN: 1/1 VCC: 1/16 IF REQ VCC FM RF RFout VCC 24 23 AM RFin 22 FM OSC 21 AM OSC 20 OSC OUT 19 ST LED...