PCM1742KEG4 datasheet(5/39 Pages) TI

Part #	PCM1742KEG4

Description	24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter

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Manufacturer	TI [Texas Instruments]

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Functional Block Diagram

Audio

Serial

Port

Output A mp and

Low−P ass F ilter

DAC

4x/8x

Oversampling

Digital Filter

with

Function

Controller

Enhanced

Multilevel

Delta−Sigma

Modulator

Output A mp and

Low−P ass F ilter

DAC

BCK

LRCK

DATA

ML

MC

MD

Serial

Control

Port

S ystem Clock

M anager

Zero Detect

Power Supply

V

OUTL

V

COM

V

OUTR

SCK

System Clock

PCM1742

SBAS176A – DECEMBER 2000 – REVISED APRIL 2005

ELECTRICAL CHARACTERISTICS (continued)

All specifications at T

A = 25°C, VCC = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 384 fS, and 24-bit data (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY REQUIREMENTS (6)

VDD

3

3.3

3.6

Voltage range

Vdc

VCC

4.5

5

5.5

fS = 44.1 kHz

6

10

IDD

Supply current

fS = 96 kHz

13

mA

fS = 192 kHz

16

fS = 44.1 kHz

8.5

13

ICC

Supply current

fS = 96 kHz

9

mA

fS = 192 kHz

9

fS = 44.1 kHz

62

98

Power dissipation

fS = 96 kHz

88

mW

fS = 192 kHz

98

TEMPERATURE RANGE

TA

Operation temperature

–25

85

°C

θ

JA

Thermal resistance

115

°C/W

(6)

Conditions in 192-kHz operation are: system clock = 128 fS and oversampling rate = 64 fS (under register control).

5

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