PCM1772RGA datasheet(8/37 Pages) TI1

Part #	PCM1772RGA

Description	LINEOUT AMPLIFIER

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Manufacturer	TI1 [Texas Instruments]

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DAC

∆Σ

Audio

Interface

× 8

Digital

Filter

+

DAC

∆Σ

SPI

Port

× 8

Digital

Filter

+

VCOM

Clock Manager

Power Supply

LRCK

DATA

BCK

(FMT) MS

(AMIX) MC

(DEMP) MD

SCKI

PD

VCC1

VCC2

VOUTR

VCOM

VOUTL

AIN

Digital

Attenuator

Lineout

Amplifier

( ) : PCM1773

AGND1

AGND2

B0001-01

TYPICAL PERFORMANCE CURVES

DIGITAL FILTER

Digital Filter (De-Emphasis Off)

−140

−120

−100

−80

−60

−40

−20

0

1

2

3

4

G001

f – Frequency [ fS]

−0.05

−0.04

−0.03

−0.02

−0.01

0.00

0.01

0.02

0.03

0.04

0.05

0.0

0.1

0.2

0.3

0.4

0.5

G002

PCM1772, PCM1773

SLES010G – SEPTEMBER 2001 – REVISED MARCH 2007

FUNCTIONAL BLOCK DIAGRAM

All specifications at T

A = 25°C, VCC1 = VCC2 = 2.4 V, fS = 44.1 kHz, system clock = 256 fS and 24-bit data, RL = 10 kΩ, unless

otherwise noted.

AMPLITUDE

vs

FREQUENCY

Figure 1.

Figure 2.

8

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PCM1772RGA Datasheet(PDF) 8 Page - Texas Instruments

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