DESCRIPTION
The TDA 7220 is a monolithic integrated circuit in a 16-lead dual in-line plastic package designed for use in 3V, 4.5V and 6V portable AM-FM radio receivers. The functions incorporated are :

AM Section
- Preamplifier and double balanced mixer with AGC
- On pin local oscillator
- IF amplifier with internal AGC
- Detector and audio preamplifier

FM SECTION
- IF amplifier and limiter
- Quadrature detector
- Audio preamplifier

.OPERATING SUPPLY VOLTAGE : 1.5 TO 6V
.HIGH SENSITIVITY AND LOW NOISE
.LOW BATTERY DRAIN
.VERY LOW TWEET
.HIGH SIGNAL HANDLING
.VERY SIMPLE DC SWITCHING OF AM-FM
.AM SECTION OPERATES UP TO 30MHz