CS61581-IP View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS61581-IP

T1/E1 Universal Line Interface

Cirrus Logic 

CS61581

+

33 µF

+5V

0.1 µF

+

1.0 µF

Control

&

Monitor

Frame

Format

Encoder/

Decoder

RGND

21

15

TGND

28 TAOS

1 MCLK

26 RLOOP

27 LLOOP

12 LOS

23 NLOOP

11 JASEL

5 MODE

7 RPOS

6 RNEG

8 RCLK

RV+ TV+

LBO2 24

LBO1 25

CS61581

IN

HARDWARE

MODE

RTIP 19

R1

R2

RRING 20

Line

Length

Setting

1

2

0.47 µF

5

6

1CT:1

PE-64936

RECEIVE

LINE

3 TPOS

4 TNEG

R3 0.47 µF

16

2

1

2 TCLK

TRING

13

TRANSMIT

6

5 LINE

9 XTALIN

TTIP

R4

1:2

10 XTALOUT RGND TGND

PE-65351

22

14

R1 (Ω)

R2 (Ω)

R3 (Ω)

R4 (Ω)

T1

100 Ω

50

50

9.1

9.1

E1

75 Ω

37.5

37.5

9.1

9.1

E1

120 Ω

60

60

9.1

9.1

Figure 16. Low Impedance Output Configuration

DS211PP8

29

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