Datasheet Summary
ICs for FM/AM Tuner
FM Front-end Circuit for Car Radio s Overview
The AN7243S is an FM front-end IC designed for DTS except RF amp. of car radio. It is built-in local oscillation frequency buffer output and PIN diode (ADX) driver for antenna damping.
Unit : mm
0.4±0.25 1.24 temper-
0.3 4.2±0.3 6.5±0.3
14-Lead SOP Package (SOP014-P-0225) s Block Diagram
GND 14 13 12 11 10 9 8
ADX Driver
Mix.
IF-Amp.
Buffer OSC AGC & Det.
Buffer
3 VCC
0.15 0.65 ature characteristics to RF amp.
1.5±0.2 s Features
- High sensitivity
- High S/N ratio
- Good IM characteristics at strong input
- Timing for AGC input level is variable.
- Built-in pre-IF-Amp. having...