PCM3000ESLASH2K datasheet(2/44 Pages) TI2

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ELECTRICAL CHARACTERISTICS

PCM3000

PCM3001

SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated

circuits be handled with appropriate precautions. Failure to observe proper handling and installation

procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision

integrated circuits may be more susceptible to damage because very small parametric changes could

cause the device not to meet its published specifications.

All specifications at T

A = 25°C, VDD = VCC = 5 V, fS = 44.1 kHz, SYSCLK = 384 fS, CLKIO input, and 18-bit data, unless

otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUT/OUTPUT

Input Logic

VIH(1)

Input logic level

VDC

VIL(1)

0.8

IIN(2)

±1

Input logic current

µA

IIN(3)

–120

VIH(4)

0.64 VDD

VDC

Input logic level

VIL(4)

0.28 VDD

IIN(4)

Input logic current

±40

µA

Output Logic

VOH(5)

IOUT = –1.6 mA

4.5

Output logic level

VOL(5)

IOUT = 3.2 mA

0.5

VDC

VOH(6)

IOUT = –3.2 mA

4.5

Output logic level

VOL(6)

IOUT = 3.2 mA

0.5

Clock Frequency

Sampling frequency

4(7)

44.1

kHz

256 fS

1.024

11.2896

12.288

System clock frequency

384 fS

1.536

16.9344

18.432

MHz

512 fS

2.048

22.5792

24.576

ADC CHARACTERISTICS

Resolution

Bits

DC Accuracy

Gain mismatch, channel-to-channel

±1

±5

% of FSR

Gain error

±2

±5

Gain drift

±20

ppm of FSR/

°C

Bipolar zero error

High-pass filter off(8)

±1.7

% of FSR

Bipolar zero drift

High-pass filter off(8)

±20

ppm of FSR/

°C

(1)

Pins 16, 17, 18, 22, 25, 26, 27, 28: LRCIN, BCKIN, DIN, CLKIO, MC/FMT2, MD/FMT1, ML/FMT0, RSTB

(2)

Pins 16, 17, 18, 22: LRCIN, BCKIN, DIN, CLKIO (Schmitt-trigger input)

(3)

Pins 25, 26, 27, 28: MC/FMT2, MD/FMT1, ML/FMT0, RSTB (Schmitt-trigger input, 70-k

Ω internal pullup resistor)

(4)

Pin 20: XTI

(5)

Pins 19, 22: DOUT, CLKIO

(6)

Pin 21: XTO

(7)

Refer to Application Bulletin SBAA033 for information relating to operation at lower sampling frequencies.

(8)

High-pass filter disabled (PCM3000 only) to measure dc offset

PCM3000E/2K 数据表(PDF) 2 Page - Texas Instruments

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