CS62180B Ver la hoja de datos (PDF) - Cirrus Logic
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CS62180B Datasheet PDF : 52 Pages
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CS62180A
CS62180B
T1 Framer
Features
• Monolithic T1 Framing Device
• Both Framers Support SF(D4®) and
ESF Framing Formats
• CS62180B Supports SLC-96® and
T1DM Framing Formats
• CS62180B Contains Updated AIS and
Carrier Loss Detection Criteria
• CS62180B is Pin Compatible with
CS62180A, DS2180A, and DS2180
General Description
The CS62180A and CS62180B are monolithic CMOS
devices which encode and decode T1 framing formats.
The devices support bit-seven and B8ZS zero suppres-
sion, and bit-robbed signaling. Clear channel mode can
be selected on a per channel basis.
The serial interface has been enhanced to allow the
CS62180A and CS62180B to share a chip select sig-
nal and register address space with the CS61535A,
CS61574A, and CS61575 Line Interface Units.
Applications
• T1 Line Cards
• ISDN Primary Rate Line Cards
Ordering Information:
CS62180A-IP 40 Pin Plastic DIP
CS62180A-IL 44 Pin PLCC
CS62180B-IP 40 Pin Plastic DIP
CS62180B-IL 44 Pin PLCC
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
TMSYNC TFSYNC TSER TABCD
1
3
2
5
9
TCLK
Transmit Timing
TLCLK
11
10
TLINK
F-Bit Data
Yellow Alarm
7
6
4
CRC
8
Data
Selector
12
Bipolar
Coder 13
TSIGSEL
TMO
TCHCLK
TSIGFR
TPOS
TNEG
Transmitter
INT 14
CS 17
SCLK 18
SDI 15
SDO 16
SPS 19
Serial
Interface
RSER 26 Data
RABCD 29 DeMUX
RLINK 22
RLCLK 23
RSIGFR 30
RSIGSEL 31
Receive
Timing
RCHCLK 25 28
27
RMSYNC RFSYNC
Registers
Code Gen.
Receive Sync
Controller
Alarm
Detect
CRC
Synchronizer
21
RYEL RBL (CS2180B-IL only)
40
20 VDD
VSS
33
32 RST
TEST
Control
39 RLOS
37 RBV
36 RCL
Bipolar 34 RPOS
Decoder 35 RNEG
38
24
Receiver
RFER
RCLK
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445-7222 FAX: (512) 445-7581
Copyright © Crystal Semiconductor Corporation 1996
(All Rights Reserved)
MAY’96
DS225PP1
1
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