AK2504 TRANSMISSION ICs AK2504 DS3/STS-1/E3 Analog Line Transceiver 1. 2. 3. 4. 5. 6. 64-pin LQFP (10 10 1.4 mm) 7. 8. 9. 10. 11. 12. 13. 14. Single chip Transmit and Receive interface for DS3, STS-1 and E3 Transmit Pulse Level Adjustment with an external resistance Selectable 225ft/120ft Line Built Out function “Robust” DSP based line transceiver Provides Line Equalization, and Clock and Data Recovery Functions Compliance with Bellcore GR-499-CORE and GR-253-CORE, ANSI T1.102, T1.404, Compliance with ITU-T G.703 and G.823 Local/Remote Loopback functions B3ZS/HDB3 Encoder/Decoder External Clock: 44.736MHz for DS3, 51.84MHz for STS-1,34.368MHz for E3 Single + 3.3Volt supply IDD 160mA max Package: 64-pin LQFP Evaluation Board: AKD2504 AK2504 BLOCK DIAGRAM http://www.asahi-kasei.co.jp/akm/en/product/ak2504/ak2504.html [2/1/2002 9:11:47 AM]