LUCL9500AGF-D datasheet(26/32 Pages) AGERE

26 / 32 page

Preliminary Data Sheet

September 2001

High-Voltage Ringing SLIC for VoIP Applications

L9500A

Agere Systems Inc.

ac Applications (continued)

Design Examples

Broadcom 3352 Interface Network

The following reference circuit shows the complete SLIC schematic for interface to the

Broadcom BCM3352 as

designed on the

Broadcom BCM93352SV application reference design and board.

Figure 12. Reference Schematic with

Broadcom BCM Embedded Codec Devices and Agere L9500 SLIC

VBAT1

BGND

VBAT2

AGND

VCC

CBAT1

0.1

µF

CBAT2

0.1

µF

CCC

0.1

µF

RTFLT

DCOUT

TXI

ITR

CRT

0.1

µF

RRT

383

Ω

AGERE

L7591

VBAT1

FUSIBLE OR PTC

Ω

CF1

CF2

NSTAT B2

CF1

0.22

µF

CF2

0.1

µF

VREF

RCVN

VITR

RCVP

VBAT1

DBAT1

VBAT2

CMLEVEL

VRXP

L9500

FUSIBLE OR PTC

BROADCOM

VPROG

CTX

RGX

4750

Ω

VTX

0.47

µF

DET

RINGINP

RINGINN

68 nF

C10

68 nF

3.3 nF

VRXN

RINGREFP

RINGREFN

78.7 k

Ω

54.9 k

Ω

FERRITE BEAD

600

Ω

VDDCORE

VDDI/O

VCC = 3.3 V

VCM

VREF_IO

150 pF

20 k

Ω

0.1

µF

CC1

3.3 nF

VTXN

VTXP

BCM3351

20 k

Ω

150 pF

174 k

Ω

88.7 k

Ω

88.7 k

Ω

RDET

10 k

Ω

VCC

BCM3352

BCM6352

BCM1101

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