|Category||Analog & Mixed-Signal Processing|
|Description||Caller id FSK Decoder|
|Datasheet||Download EM92547A datasheet
Office 6-F1.,42, Sec.2, Chung Shaan N. Road., Taipei, Taiwan, R.O.C. TEL 5628813 EXT.686,687;5223065 FAX (02) 5516348 TELEX : 21540 HTC, 22486 EHSIN 7F-1, No. 9 Prosperity 1st Rd. Science-Based Industrial Park. Hsin Chu City. Taiwan, R.O.C. TEL (03) 5787505 FAX (03) 5779095
The is a single-chip CMOS receiver IC designed to work in telephone equipment incorporating Calling Number Delivery (CND) capabilities. CND capabilities can be add to equipment such as telephone, adjunct units, answering machines, and facsimile machines, by using the EM92547 and any standard microcontroller IC. The EM92547 detects and qualifies the incoming ring signal, performs an energy detect on incoming FSK signal, and demodulates the FSK data in accordance with BELL 202 standards. Integrating the above functions the equipment manufacturer a cost-effective means of implementing CND capabilities into their products.Features
Compatible with Bellcore GR-30-CORE (formerly as TR-NWT-000030). Compatible with British Telecom (BT) & SIN242. FSK demodulator for Bell 202 and ITU-T V.23 (formerly as CCITT V.23) On-chip ring detector Ring detect and carrier detect output for MCU interrupt Power down mode operation On-chip band pass filter FSK demodulation with energy detect High input sensitivity Low current consumption in power down mode Single supply from to 6V Clock Frequencies: or 455KHz for EM92547AApplication
adjunct units answering machines feature phones fax machines computer interface products
* This specification are subject to be changed without notice. 1998
TIP RING DET1 RING DET2 NC RING TIME PWR UP DVSS VDD SHORTDATA DATA OUT CD RD CLK SELECT OSCIN OSCOUT TIP RING DET1 RING DET2 NC RING TIME PWR UP DVSSTIP RING DET1 RING DET2 NC RING TIME PWR UP DVSS VDD SHORTDATA DATA OUT RD NC OSCIN OSCOUT
Functional Block Diagram Data Valid Energy Det Circuit Data Retiming DATAOUT /CD
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