TA2154AFN

·FM/TV local oscillator level is low (Built-in auto level control circuit)
·Suitable for combination with digital tuning system, which is included IF counter.
·One terminal type AM/FM IF count output for IF counter of digital tuning system.
   ·AM: 450 kHz
   ·FM: 10.7 MHz
·One terminal type FM/TV local oscillator.
·Local oscillator buffer output terminal shared by AM, FM and TV
   ·AM: 1/1
   ·FM: 1/32
   ·TV: 1/8
·For adopting ceramic discriminator, it is not necessary to adjust the FM quad detector circuit.
·Built-in FM MPX VCO circuit.
· Low supply current (VCC = 1.2 V, Ta = 25°C)
    Iccq (AM) = 5.0 mA (typ.)
    Iccq (FM) = 13.0 mA (typ.)
    Iccq (TV) = 13.5 mA (typ.)
· Operating supply voltage: V_CC = 1.0~2.2 V (T_a = 25°C)
· Monaural operating supply voltage: V_CC = 0.95~2.2 V (T_a = 25°C)

TA2154AFN is developed for 1.5 V headphone stereos. It incorporates all the functions of an FM/TV front end, AM/FM IF, and FM multiplex.

The IC can be used for IF count digital tuning systems. Sincethe IC divides the buffer output frequency by 16 while
suppressing the FM/TV local oscillation level, the IC can suppress unnecessary emission, facilitating conformance to the new FCC specifications (part 15).