RH56D-PCI 查看數據表（PDF） - Unspecified

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RH56D-PCI

Host-Controlled V.90/K56flex™ Modem device Family for Desktop Applications

Unspecified 

Label

TELOUT/NC

Pin

58

TELIN/NC

56

MIC_V/NC

65

VREF

63

VC

64

SLEEPO

46

(GPIO15)

IASLEEP

53

M_CLK

95

M_SCLK

93

M_STROBE

91

M_TXSIN

94

M_RXOUT

92

M_CTRL

96

MCLKIN

73

MSCLK

75

MSTROBE

77

MTXSIN

74

MRXOUT

76

MCTRLSIN

72

RH56D-PCI Modem Designer’s Guide

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I/O Type

Signal Name/Description

TELEPHONE LINE (DAA)/AUDIO INTERFACE (CONTINUED)

O(DF)

Telephone Handset Analog Output (R6793-12)/NC (R6793-11).

R6793-12: TELOUT is a single-ended analog output to the telephone handset speaker

interface circuit. TELOUT can drive a 300 Ω load.

R6793-11: NC pin can be left open, or connected as for R6793-12 without signal

support.

I(DA)

Telephone Handset Analog Input R6793-12)/NC (R6793-11).

R6793-12: TELIN is a single-ended analog input from the telephone handset

microphone interface circuit. The input impedance is > 70k Ω.

R6793-11: NC pin can be left open, or connected as for R6793-12, without signal

support.

I(DA)

Voice Microphone Input (R6793-12)/NC (R6793-11).

R6793-12: MIC_V is a single-ended microphone input. The input impedance is >

70k Ω.

R6793-11: NC pin can be left open, or connected as for R6793-12 without signal

support.

REF

High Voltage Reference. Connect to VC through 10 µF (polarized, + terminal to

VREF) and 0.1 µF (ceramic) in parallel. Ensure a very close proximity between these

capacitors and VREF pin.

REF

Low Voltage Reference. Connect to analog ground through 10 µF (polarized, +

terminal to VC) and 0.1 µF (ceramic) in parallel. Ensure a very close proximity between

these capacitors and VC pin. Use a short path and a wide trace to AGND pin.

R6795 INTERCONNECT/NO CONNECT

Ot12

Connect to R6795: IASLEEP.

DI

Connect to R6795: SLEEPO.

Ot2

Connect to R6795: MCLKIN and VCLKIN. R6795-12: Connection to VCLKIN is not

required, but may be done to common board design.

It

Connect to R6795: MSCLK.

It

Connect to R6795: MSTROBE.

Ot2

Connect to R6795: MTXSIN.

It

Connect to R6795: MRXOUT.

Ot2

Connect to R6795: MCTRLSIN.

IA

Connect to R6795: M_CLK.

OA

Connect to R6795: M_SCLK.

OA

Connect to R6795: M_STROBE.

IA

Connect to R6795: M_TXSIN.

OA

Connect to R6795: M_RXOUT.

IA

Connect to R6795: M_CTRL.

3-10

Conexant

1213

Conexant Proprietary Information

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