RTC6721 - RichWave

RTC6721 CMOS Audio Demodulator

The RTC6721 is a dual-channel of 6MHz and 6.5MHz FM demodulator for wireless audio and analog FM application. The chip includes PLL based audio demodulator and audio amplifier providing 1Vpp audio output. This device may be connected with RTC6711 as a total solution for wireless AV center application. The device is available in a 24-pin QFN package. Feature.

Features

3.3V power supply 6/6.5 MHz sound FM demodulator CMOS technology On-chip VCO and PLL 24-pin leadless QFN package Audio amp embedded Application AV Sender Baby Monitor Wireless Audio Wireless Earphone www.richwave.com.tw Specifications subject to change without notice Rev V.004 2 Preliminary Confidential Proprietary Preliminary Block Diagram Data Sheet RTC6721 JAN 2006 19 VD1 20 FM1 21 VBG_10K 22 PD_AU 23 FM2 24 VD2 13 14 15 16 17 18 654321 VDD_VCO2 VSS VSS VSS AO2 IN2 Audio Demoulation Audio Demoulation PD_AMP AUDIOAMP .