TDA7000

Application

*Where application information is given, it is advisory and does not form part of the specification.


Specifications

Supply voltage (pin 5)	VP	max.
Oscillator voltage (pin 6)	V6-5	12 V
Total power dissipation	see derating curve Fig.2	VP -0,5 to VP + 0,5 V
Storage temperature range	Tstg	-55 to +150 °C
Operating ambient temperature range	Tamb	0 to +60 °C

Description

The TDA7000 is a monolithic integrated circuit for mono FM portable radios, where a minimum on peripheral components is important (small dimensions and low costs).

The TDA7000 has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC filters. The only function of TDA7000 which needs alignment is the resonant circuit for the oscillator, thus selecting the reception frequency. Spurious reception is avoided by means of a mute circuit, which also eliminates too noisy input signals. Special precautions are taken to meet the radiation requirements.

The TDA7000 includes the following functions:

* R.F. input stage
* Mixer
* Local oscillator
* I.F. amplifier/limiter
* Phase demodulator
* Mute detector
* Mute switch