W6630CR

STEREO AUDIO DAC

Winbond Corporate Headquarters
Tel : 886-3-5790666
Fax : 886-3-5796139

Taipei Sales Office
Tel : 886-2-7190505
Fax : 886-2-7197502

Winbond Electronics North America Corp.
Tel : 1-408-9436666
Fax : 1-408-9436668

Winbond Electronics H.K. Ltd.
Tel : 852-27513100
Fax : 852-27552064

Details are subject to change without notice. All trademarks are property of their respective holders. Apr. 1999

GENERAL DESCRIPTION

The W6630CR is a stereo audio DAC chip incorporating
8X digital interpolatioin filters, 64X multi-level
oversampling delta-sigma modulators, analog low-pass
filter and output amplifiers. The 16 or 18 Bit linear input
data for DAC consists of two formats, normal format
and I

S format. In addition, the device includes two

control modes. One is hardware mode which can control
mute and digital de-emphasis. The other one is software
mode, where 4x9 bits internal control registers can be
controlled by the serial setup port (SSP). Many functions
such as 256 step attenuation, DAC mute, digital de-
emphasis and format conversions can be set up through
these registers.

FEATURES

Power Supply: from +2.7 to +5.25 Volt, typically +5
Volt, for Analog and Digital Power

Sampling Clock Rate: 32 K, 44.1 K, and 48 K Hz

Master Clock Rate: 384 or 256 times of Sampling
Clock Rate

Stereo 16 or 18 Bits Linear PCM Data Input

Two Types Linear PCM Data Input Format: Normal

and I

S Format

Delta-Sigma DAC built-in digital De-emphasis filter,

8X Interpolator, 64X Oversampling Multi-Bit

Modulator

Stereo DAC Output built-in Analog Low Pass Filter
and Ouput Amplifier with 5K

Load

High Performance Audio Output: 100 dB SNR, 96
dB Dynamic Range and -90 dB THD+N typically

Two Control Function Modes: Hardware Mode and
Software Mode Selected by Mode Pin

Software Mode controlled by 4x9 bits Registers via
Serial Setup Port (SSP)

Main Control Functions: De-emphasis, Mute, 256
Step Attenuation, Channel Output Combination,

Input Format Select such as 16 or 18 Bit, I

S or

Normal

20 pin SSOP Package

APPLICATIONS

W6630CR is for digital audio applications, such as
Audio CD,Video CD, DVD, MP-3 player, STB,
Multimedia PC and other digital audio/video equipment.

Functional Block Pin Configuration

Delta-Sigma DAC-Filter

Serial
Data
Port
(SDP)

Serial
Setup
Port
(SSP)
&
Control
Registers

Sequence and
Control System

FSLR

SSP_EN/MUTE

DINLR

Data
Conversion

H/W or
S/W Mode
Function
Control

8X Digital

Interpolation

Filter

64X

Oversampling

Multi-Bit

Delta-Sigma

Modulator

L_DAC

R_DAC

LPF &
Output
Amplifier

Zero Detector

BCLK

SSPCLK/DE1

SSPDIN/DE0

MODE

Power Supply
Management System

VOL

VAGL

VOR

VAGR

ZERO

DVDD

DGND

AVDD

AGND

/RESET

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