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| TI SN761633 FM收音机解决方案 | |||||
作者:TI 文章来源:TI 点击数: 更新时间:2008-1-24 ![]() |
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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 Input) Tx: 13 mA (VCC = 3 V, No Audio Input, 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 Input (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 应用: 手提媒体播放器 MP3 播放器 个人导航设备 ![]() 图1。SN761633方框图 ![]() 图2。SN761633应用电路图 |
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