BCK

VINL

Reference

VREF1

VREF2

VINR

Delta-Sigma

Modulator

Delta-Sigma

Modulator

×1/64 , ×1/128

Decimation

Filter

With

High-Pass Filter

Power Supply

AGND

VCC

VDD

DGND

Clock and Timing Control

Serial

Interface

Mode/

Format

Control

LRCK

DOUT

FMT0

FMT1

MODE0

MODE1

BYPAS

OSR

PDWN

SCKI

B0004-06

TEST

Copyright © 2016, Texas Instruments Incorporated

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

PCM1803A

SLES142B – JUNE 2005 – REVISED JULY 2016

PCM1803A Single-Ended, Analog-Input 24-Bit, 96-kHz Stereo A/D Converter

1

1 Features

1

•

24-Bit Delta-Sigma Stereo A/D Converter

•

Single-Ended Voltage Input: 3 Vp-p

•

Oversampling Decimation Filter:

–

Oversampling Frequency: ×64, ×128

–

Pass-Band Ripple: ±0.05 dB

–

Stop-Band Attenuation: –65 dB

–

On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)

•

High-Performance:

–

THD+N: –95 dB (Typically)

–

SNR: 103 dB (Typically)

–

Dynamic Range: 103 dB (Typically)

•

PCM Audio Interface:

–

Master or Slave Mode Selectable

–

Data Formats:

–

24-Bit Left-Justified

–

24-Bit I2S

–

20-, 24-Bit Right-Justified

•

Sampling Rate: 16 kHz to 96 kHz

•

System Clock: 256 fS, 384 fS, 512 fS, 768 fS

•

Dual Power Supplies: 5 V for Analog, 3.3 V for

Digital

•

Package: 20-Pin SSOP

2 Applications

•

AV Amplifier Receivers

•

MD Players

•

CD Recorders

•

Multitrack Receivers

•

Electric Musical Instruments

3 Description

The PCM1803A device is high-performance, low-

cost, single-chip stereo analog-to-digital converter

with

single-ended

analog

voltage

input.

The

PCM1803A uses a delta-sigma modulator with 64-

and 128-times oversampling, and includes a digital

decimation filter and high-pass filter, which removes

the DC component of the input signal. For various

applications, the PCM1803A supports master and

slave modes and four data formats in serial interface.

The PCM1803A is suitable for a wide variety of cost-

sensitive

consumer

applications

where

good

performance and operation from a 5-V analog supply

and 3.3-V digital supply are required. The PCM1803A

is fabricated using a highly-advanced CMOS process

and is available in a small 20-pin SSOP package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

PCM1803A

SSOP (20)

7.20 mm × 5.30 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Functional Block Diagram