Description :

1. FM/ AM part.
(1) High sensitivity and high image rejection.
(2) Mixer for 1st IF 10.7MHz; mixer for 2nd IF 450KHz.
(3) Fully integrated FM demodulator with spike cancellation.
(4) AM IF- and audio noise blanking.
2. Stereo decoder.
(1) Automatic pilot dependent mono/ stereo switching.
(2) Programmable roll-off compensation.
(3) High cut and stereo blend-characteristics programmable.
(4) Dedicated RDS mute.
(5) Internal noise blanker with several threshold controls.
3. Receiving system.
(1) FM section: super heterodyne ( upper side oscillation).
(2) AM section: double heterodyne.

Specification :

1. Link IC: CHP59002, Z4C02N, TDA7540B. 2. Receiving frequency. (1) FM section: 87.5MHz ~ 108MHz, 76MHz ~ 90MHz, 65MHz ~ 74MHz. (2) AM section: 153kHz ~ 1710kHz. 3. IF center frequency. (1) FM section: 10.7MHz. (2) AM section: 1st= 10.7MHz; 2nd= 450 KHz. 4. Standard supply voltage: 8.5V. 5. Operation temperature: 30℃ ~ +80℃ range.