HT9032

Calling Line Identification Receiver Features · · · · HT9032 HT9032B/C/D operating voltage: 3.5V~5.5V HT9032F operating voltage: 3.0V~5.5V Bell 202 FSK and V.23 demodulation Ring detection input and output Carrier detection output · · · Power down mode High input sensitivity HT9032C: 16-pin DIP/SOP package HT9032B/F-A: 8-pin DIP package HT9032D/F-B: 8-pin SOP package Applications · · · Feature phones Caller ID adjunct boxes Fax and answering machines · · Computer telephony interface products ADSI products General Description The HT9032 calling line identification receiver is a low power CMOS integrated circuit designed for receiving physical layer signals transmitted according to Bellcore TR-NWT-000030 and ITU-T V.23 specifications. The primary application of this device is for products used to receive and display the calling number, or message waiting indicator sent to subscribers from the central office facilities. The device also provides a carrier detection circuit and a ring detection circuit for easier system applications. 1 April 6, 2000 HT9032 Block Diagram T IP R IN G B a n d P a s s F ilte r D e m o d u la to r P D W N P o w e r U p L o g ic V a lid D a ta D e te c tio n D O U T C D O U T C D E T R T IM E In te rn a l P o w e r U p L o g ic R D E T 1 R D E T 2 R in g A n a ly s is C ir c u it R D E T V D D V S S R e fe re n c e V o lta g e C lo c k G e n e ra to r X 1 X 2 Pin Assignment T IP R IN G 2 3 4 5 6 7 8 R D E T 1 R D E T 2 T IP R IN G ...