HT9030-The Intergrated Circuit to Recognize and Receive Calling Lines

Published:2011/5/11 1:55:00 Author:Borg | Keyword: Intergrated Circuit, Calling Lines | From:SeekIC

HT9030 is an intergrated circuit that can recognise and receive calling lines, which is a engery-saving IC adopting CMOS technique. It is commonly used in products receive and display the calling lines and relevent information(such as caller display phones,etc). 1.internal circuit The HT9030 intergrated circuit contains sub-circuits of demodulation, ring-down test, low voltage test and off-power control, etc, which adopts crystal and pottery oscillators. The internal circuit of its circuit is shown in Figure 1-1. Figure 1-1 The internal circuit of HT9030 chips 2.pin functions HT9030 intergrated circuit is pinned dual in-line packages with 16-lead, whose pin functions of intergrated circuits are listed in Table 1-1. Table 1-1 pin functions of HT9030 intergrated circuits 3.typical application circuit The typical application circuit of HT9030 chipsis shown in Figure 1-2. Figure 1-2 The typical application circuit of HT9030 chips



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