TA2149BFN Datasheet PDF - Toshiba

●Bipolar Linear Integrated Circuit Silicon Monolithic

●3V 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 combination with Digital Tuning System which is included IF Counter.

●  Adjustable for IF count output sensitivity by external resistance of pin 17 (FM only).

●One terminal type AM/FM IF count output for IF counter of Digital Tuning System.

●  FM: 1.3375 MHz (1/8 dividing)

●  AM: 450 kHz

●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 mA (Typ.)

●  ICCq(AM) = 8.5 mA (Typ.)

●Operating Supply voltage range: VCC= 1.8~7 V (Ta = 25°C)