Datasheet > SI3044

SI3044

更新时间： 2024-11-25 22:43:15

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
54页	1369K
描述
3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT

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SI3044 数据手册

Si3035

3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT

Features

Complete DAA includes the following:

3.3 V to 5 V Digital/Analog

Power Supplies

Support for Caller ID

Low Profile SOIC Packages

Direct Interface to DSPs

JATE Filter Option

86 dB Dynamic Range TX/RX

Paths

Integrated Modem Codec

Compliant with FCC Part 68

Low-Power Standby Mode

Proprietary ISOcap™ Technology

Pin Compatible with Si3034, Si3032

Optional IIR Digital Filter

Daisy-Chaining for Up to Eight

Devices

Ordering Information

See page 50.

Integrated Ring Detector

3000 V Isolation

Pin Assignments

Si3021 (SOIC)

Applications

! V.90 Modems

! Fax Machines

! Set Top Boxes

MCLK

FSYNC

SCLK

OFHK

RGDT/FSD

! Voice Mail Systems

V_D

V_A

Description

SDO

GND

C1A

The Si3035 is an integrated direct access arrangement (DAA) chipset that

provides a digital, low-cost, solid-state interface to a telephone line.

Available in two 16-pin small outline packages, it eliminates the need for an

analog front end (AFE), an isolation transformer, relays, opto-isolators, and

a 2- to 4-wire hybrid. The Si3035 dramatically reduces the number of

discrete components and cost required to achieve compliance with FCC

Part 68. The Si3035 interfaces directly to standard modem DSPs and

supports all FCC and JATE out-of-band noise requirements. International

support is provided by the pin compatible Si3034.

SDI

FC/RGDT

RESET

AOUT

Si3021 (TSSOP)

SDO

SDI

V_D

SCLK

FSYNC

MCLK

OFHK

RGDT/FSD

FC/RGDT

RESET

AOUT

Functional Block Diagram

C1A

GND

V_A

Si3021

Si3012

Si3012 (SOIC or TSSOP)

MCLK

SCLK

Out

TSTA

TSTB

IGND

C1B

Hybrid

FSYNC

SDI

Digital

Interface

HYBD

SDO

VREG2

VREG

DCT

REXT

DCT

HYBD

VREG2

VREG

FC/RGT

Isolation

Interface

Isolation

Interface

RNG1

RNG2

Termination

REXT

IGND

RGDT/FSD

OFHK

Ring Detect

Off-Hook

RNG1

RNG2

Control

Interface

MODE

RESET

US Patent # 5,870,046

US Patent # 6,061,009

Other Patents Pending

AOUT

Rev. 1.2 12/00

Si3035-DS12

12 3 4 5 6 7...54

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