HT9246DL-An Intergrated Circuit of Pulse/Tone Dialing

Published:2011/5/10 20:16:00 Author:Borg | Keyword: Intergrated Circuit, Pulse/Tone Dialing | From:SeekIC

HT9246DL is an intergrated circuit of pulse/tone dialing which is widely used in wirless phones of multi-channels. 1.functions features The contents of the HT9246DL intergrated circuit:pulse/tone dialing circuit, key switch signal encoding/decoding circuit, silence control circuit, hand-free control circuit, clock oscillatory circuit and other function circuit. 2.fin functions and relevent data HT9246DL intergrated circuits are pinned in double-line plastic packages with 28 pinnings, whose pin functions and data are listed in Table 1-1. In the table, the pin voltage value of (19) is 4.1 when the dialing is in the pulse way, and 0V when it is in the tone way. The static state in Table 1-1. Means off-hook, and the dynamic means that the voltage when application circuits corresponding to pinnings are working. Table 1-1 pin functions and data of the HT9246DL circuit



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