TA2149BN Datasheet, PDF (1/15 Pages) Toshiba Semiconductor – 3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System)

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 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)
TA2149BN
TA2149BFN
Weight
SDIP24-P-300-1.78: 1.2 g (Typ.)
SSOP24-P-300-0.65A: 0.14 g (Typ.)
Note 1: Handle with care to prevent devices from deteriorations by static electricity.
1
2001-12-21