SI3035 Datasheet, PDF(1/54 Page) List of Unclassifed Manufacturers – 3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT

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SI3035 Datasheet, PDF (1/54 Pages) List of Unclassifed Manufacturers – 3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT

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

! JATE Filter Option

! 86 dB Dynamic Range TX/RX

Paths

! Daisy-Chaining for Up to Eight

Devices

! Integrated Ring Detector

! 3000 V Isolation

! Support for Caller ID

! Low Profile SOIC Packages

! Direct Interface to DSPs

! Integrated Modem Codec

! Compliant with FCC Part 68

! Low-Power Standby Mode

! Proprietary ISOcapâ¢ Technology

! Pin Compatible with Si3034, Si3032

! Optional IIR Digital Filter

Applications

! V.90 Modems

! Voice Mail Systems

! Fax Machines

! Set Top Boxes

Description

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.

Functional Block Diagram

Si3021

Si3012

Ordering Information

See page 50.

Pin Assignments

Si3021 (SOIC)

MCLK 1

FSYNC 2

SCLK 3

VD 4

SDO 5

SDI 6

FC/RGDT 7

RESET 8

16 OFHK

15 RGDT/FSD

14 M0

13 VA

12 GND

11 C1A

10 M1

9 AOUT

Si3021 (TSSOP)

SDO 1

SDI 2

FC/RGDT 3

RESET 4

AOUT 5

M1 6

C1A 7

GND 8

16 VD

15 SCLK

14 FSYNC

13 MCLK

12 OFHK

11 RGDT/FSD

10 M0

9 VA

MCLK

SCLK

FSYNC

SDI

SDO

FC/RGT

RGDT/FSD

OFHK

MODE

RESET

AOUT

Digital

Interface

Isolation

Interface

Control

Interface

Out

Hybrid In

Isolation

Interface

Termination

Ring Detect

Off-Hook

HYBD

VREG2

VREG

DCT

REXT

IGND

RNG1

RNG2

Si3012 (SOIC or TSSOP)

TSTA 1

TSTB 2

IGND 3

C1B 4

RNG1 5

RNG2 6

QB 7

QE 8

16 TX

15 NC

14 RX

13 REXT

12 DCT

11 HYBD

10 VREG2

9 VREG

US Patent # 5,870,046

US Patent # 6,061,009

Other Patents Pending

Rev. 1.2 12/00

Si3035-DS12

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