PCM1870 datasheet(4/52 Pages) TI2

No. de pieza	PCM1870

Descripción Electrónicos	16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier

PDF	52 Pages

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Fabricante Electrónico	TI2 [Texas Instruments]

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PCM1870

SLAS544A – MAY 2007 – REVISED SEPTEMBER 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

PCM1870RHF, PCM1870YZF

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

FILTER CHARACTERISTICS

Decimation Filter for ADC

Pass band

0.408 fS

Stop band

0.591 fS

Pass-band ripple

±0.02

Stop-band attenuation

f < 3.268 fS

–60

Group delay

17/fS

High-Pass Filter for ADC

–3 dB

3.74

Frequency response (fc = 4 Hz)

–0.5 dB

10.66

–0.1 dB

24.20

–3 dB

118.77

Frequency response (fc = 120 Hz)

–0.5 dB

321.75

–0.1 dB

605.52

–3 dB

235.68

Frequency response (fc = 240 Hz)

–0.5 dB

609.95

–0.1 dB

2601.2

POWER SUPPLY AND SUPPLY CURRENT

VIO

1.71

3.3

3.6

VDD

Voltage range

VDD

1.71

3.3

3.6

VDC

VCC

2.4

3.3

3.6

BPZ input, all active, no load

Supply current

All inputs are held static.

μA

BPZ input

26.4

39.6

Power dissipation

All inputs are held static.

3.3

μW

TEMPERATURE CONDITION

Operation temperature

–40

°C

θJA

Thermal resistance

°C/W

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