AM79574 Datasheet | AMD

feature s Tip Open state for ground-start lines s Test relay driver optional s On-hook transmission BLOCK DIAGRAM (TIP) A Ring Relay Driver Test Relay Driver RINGOUT TESTOUT C1 C2 C3 C4 E1 E0 DET GKFIL VTX RSN Ground-Key Detector Input Decoder and Control Two-Wire Interface HPB Signal Transmission B(RING) Power-Feed Controller DA DB VREG L VBAT BGND Off-Hook Detector RD RDC Ring-Trip Detector Switching Regulator CHS QBAT CHCLK VEE AGND 16855C-001 Notes: 1. Am79574- E0 and E1 inputs; ring and test relay drivers sourced internally to BGND. 2. Output amplifier current gain (K1) = 1000. Publication# 16855 Rev: E Amendment: /0 Issue Date: October 1999 ORDERING INFORMATION Standard Products AMD standard products are available in several packages and operating ranges. The order number (Valid bination) is formed by a bination of the elements below. TEMPERATURE RANGE C = mercial (0°C to 70°C)- PACKAGE TYPE J = 32-Pin Plastic Leaded Chip Carrier (PL 032) PERFORMANCE GRADE Blank = Standard Specification - 1 = Performance Grading - 2 = Performance Grading DEVICE NAME/DESCRIPTION Am79574 Subscriber Line Interface Circuit Valid binations Am79574 - 1 - 2 JC Valid binations Valid binations list configurations planned to be supported in volume for this device. Consult the local AMD sales office to confirm availability of specific valid binations, to check on newly released binations, and to obtain additional data on AMD’s standard military grade products. Note: - Functionality of the device from 0°C to +70°C is guaranteed by production testing. Performance from - 40°C to +85°C is guaranteed by characterization and periodic sampling of production units. Am79574 Data Sheet CONNECTION DIAGRAM Top View RINGOUT BGND B(RING)...