ATTL7554AP View Datasheet(PDF) - Agere -> LSI Corporation

Part Name

Description

Manufacturer

ATTL7554AP

L7554 Low-Power SLIC

Agere -> LSI Corporation 

L7554 Low-Power SLIC

Data Sheet

March 1997

Applications

RPROG

66.8 kΩ

RLCTH

24.9 kΩ

VCC

0.1 µF

CCC

3

14

IPROG

DCOUT

12 LCTH

8

VCC

VBAT

CBAT

0.1 µF

15

VBAT VREG

TIP RPT

20 Ω

250 V PROT

L7581

RELAY

30 PT

L7554

SLIC

RING RPR

20 Ω

RTS1

402 Ω

VRING

CRTS2

0.27 µF

RTS2

274 kΩ

16 PR

RTSP

2.0 MΩ 32

RTSP

CRTS1

0.022 µF

31 RTSN

RTSN

2.0 MΩ

CF2

CF1

18

19

CF1

0.47 µF

AGND AGND BGND

24 25

27

VBAT

CF2

0.1 µF

VTX 29

TXI 11

VITR 20

CB2

0.1 µF

RT2

18.7 kΩ

RX

28.0 kΩ

VFXIN

–

GSX

RT1

RHB1 VFXIP +

DX

86.6 kΩ 28.0 kΩ

RRCV

RCVP 9

48.7 kΩ

PWROP

DR

10

RCVN

B2 35

B1 36

B0 23

RGP

20.0 kΩ

CGP

330 pF

CONTROL

INPUTS

PWRON

GSR

FSX

FSR

MC

PD

CLKSEL

A/µ

PCM

HIGHWAY

SYNCH

AND

CLOCK

CONTROL

INPUTS

NLC 34 SUPERVISION

NRDET 33 OUTPUTS

T7513

CODEC

12-2573 (C)

Figure 11. Basic Loop Start Application Circuit Using T7513 Type Codec

LOOP START

APPLICATION CIRCUIT

VCC

22

RGDET

21

ICM

RGDET

100 kΩ

82.5 kΩ

RICM2

0.47 µF

CICM

Figure 12. Ground Start Application Circuit

12-2821 (C)

14

Lucent Technologies Inc.

Share Link: