PCM1774RGPT datasheet(4/49 Pages) TI

Part #	PCM1774RGPT

Description	16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs

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Manufacturer	TI [Texas Instruments]

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PCM1774

SLAS551 – JULY 2007

ELECTRICAL CHARACTERISTICS (continued)

All specifications at TA = 25°C, VDD = VIO = VCC = VPA = 3.3 V, fS = 48 kHz, system clock = 256 fS, and 16-bit data (unless

otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Load resistance

16

Ω

200 Hz, 140 mVPP

–40

PSRR

Power-supply rejection ratio

1 kHz, 140 mVPP

–45

dB

20 kHz, 140 mVPP

–32

Line Input to Headphone Output Through Mixing Path (HPOL and HPOR)

RL = 16 Ω or 32 Ω, ALC = OFF, volume = 0 dB, speaker = powered down, analog mixing = enabled, not capless mode

DYNAMIC PERFORMANCE

2.828

VPP

Full-scale output voltage

0 dB

1

Vrms

SNR

Signal-to-noise ratio

EIAJ, A-weighted

84

93

dB

Load resistance

16

Ω

Filter Characteristics

INTERPOLATION FILTER FOR DAC

Pass band

0.454 fS

Stop band

0.546 fS

Pass-band ripple

±0.04

dB

Stop-band attenuation

–50

dB

Group delay

19/fs

s

De-emphasis error

±0.1

dB

ANALOG FILTER

Frequency response

f = 20 kHz

±0.2

dB

Power Supply and Supply Current

VIO

1.71

3.3

3.6

VDD

1.71

3.3

3.6

Voltage range

Vdc

VCC

2.4

3.3

3.6

VPA

2.4

3.3

3.6

BPZ input, all active, no load

4.5

10

mA

Supply current

All inputs are held static

1

10

μA

BPZ input

14.8

33

mW

Power dissipation

All inputs are held static

3.3

33

μW

Temperature Condition

Operation temperature

–40

85

°C

θJA

Thermal resistance

40

°C/W

4

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