GD9815-5-the integrated microcomputer circuit of communication single door

Published:2011/5/12 21:57:00 Author:Borg | Keyword: integrated microcomputer, communication single door | From:SeekIC

GD9815-5 is an integrated microcomputer circuit of communication single door, which is widely used in caller display phones, such as Zhongtianxin and Wondlay.1.Function features GD9815-5 contains FSK decoding circuits of caller display, while linking with two crystal oscillators from outside:one of them is 3.58MHz, and another is 32768Hz. When it is off-hook, the 32768Hz oscillator keeps the clock circuit and LED display working, by which the energy is saved.pin functions and data2. GD9815-5 is in 100-pin package of chip type.



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