CS62180A-IP View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS62180A-IP

T1 Framer

Cirrus Logic 

APPLICATIONS

System Connection Diagram

CS62180A

CS62180B

Signalling

PCM Data

Control

PCM Data

Signalling

VDD

D PQ

CQ

D PQ

CQ

SLC-96®

multiframe

sync

RSIGSEL

RMSYNC

(optional)

20 VSS

32 TEST

1 TMSYNC

28 RMSYNC

27 RFSYNC

31 RSIGSEL

30 RSIGFR

25 RCHCLK

26 RSER

29 RABCD

2 TFSYNC

6 TMO

7 TSIGSEL

8 TSIGFR

4 TCHCLK

5 TSER

9 TABCD

23 RLCLK

22 RLINK

11 TLCLK

10 TLINK

VDD

40

SPS

19

TCLK

3

TPOS

12

TNEG

13

RCLK 24

RPOS 34

RNEG 35

INT 14

CS 17

SCLK 18

SDI 15

SDO

16

RST 33

RYEL 21

RCL 36

RBV 37

RFER 38

RLOS 39

+5V

TV+

RV+

MODE

TCLK

TPOS

TNEG

RCLK

RPOS

RNEG

CLKE

TTIP

TRING

Transmit Line

INT

CS

SCLK

SDI

SDO

RTIP

RRING

Receive Line

Data Link

Supervision

Host Processor

Figure A1. Typical System Connection

T1 Frame Formats

T1 is the basic format in the T-carrier PCM

transmission system used in the United States.

Detailed technical specifications can be found in

ANSI T1.107-1988, ANSI T1.403-1993, ANSI

T1.408-1990.

The T1 format time-division multiplexes 24 dig-

itized voice (telephone) or data channels into a

single, 1.544 Mbps data stream. This format is

used primarily for transmission over dual

twisted-pair cable with digital repeaters at 6000

ft. intervals. The T-carrier system also defines

higher level formats for long-haul transmission

via satellite or microwave relay. These higher

level formats are constructed by multiplexing

several T1 lines into higher and higher data

rates. Figure A2 gives an overview of the T-car-

rier hierarchy.

Level

T-1

T-1C

T-2

T-3

T-4

Number of

voice channels

24

48

96

672

4032

Bit Rate

(Mbps)

1.544

3.152

6.312

44.736

274.176

Figure A2. T-carrier Hiearchy

44

DS225PP1

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