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TI  公司的SN761633 是單片F(xiàn)M立體聲收音機(jī)接收器和發(fā)送器，頻率范圍從76 MHz 到108 MHz，廣泛用于手提媒體播放器 （PMP），MP3 播放器 和個(gè)人導(dǎo)航設(shè)備。本文介紹了SN761633的主要性能，功能方框圖以及應(yīng)用電路圖。

The SN761633 is an FM radio receiver and transmitter IC for portable audio players.The circuit consists of a stereo FM radio receiver and FM transmitter, and is available in a small-outline package.

主要特性：

Single-Chip FM Stereo Radio and Transmitter
FM Stereo MPX [Receive (Rx), Transmit (Tx)]
Frequency Range 76 MHz to 108 MHz (Rx, Tx)
Low Supply Current
Rx: 11.5 mA (VCC = 3 V, No RF bbbbb)
Tx: 13 mA (VCC = 3 V, No Audio bbbbb,
RTX = Open)
32.768-kHz Crystal
I2C Interface
MPX Output for RDS (Rx)
Seek Tuning (Rx)
RFAGC (Rx)
RF Auto-Power Control (Tx)
Pilot Cancel (Rx)
Sixth-Order 15-kHz LPF (Tx)
Programmable De/Pre-Emphasis (50/75 µs)
Pilot Out (Tx)
General-Purpose External bbbbb (Tx)
High Power Selectable RF Output (Tx)
–7/–3/1/4 dBm
High Cut Control (HCC), Stereo Noise Control (SNC) (Rx)
Soft Mute (Rx)
VCC = 2.5 V to 4 V
40-Pin QFN Package

應(yīng)用：
手提媒體播放器
MP3 播放器
個(gè)人導(dǎo)航設(shè)備



圖1。SN761633方框圖




圖2。SN761633應(yīng)用電路圖