PCM3052ARTF datasheet(3/48 Pages) TI2

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ELECTRICAL CHARACTERISTICS

PCM3052A

SLES160 – NOVEMBER 2005

All specifications at T

A = 25°C, VCC1 = VCC2 = VCC3 = 5 V, VDD = 3.3 V, fS = 48 kHz, SCKI = 256 fS, 24-bit data, unless

otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUT/OUTPUT – DATA FORMAT

Audio data interface format

I2S

Audio data bit length

Bits

Audio data format

MSB-first, 2s complement

Sampling frequency, ADC

kHz

Sampling frequency, DAC

kHz

System clock frequency

256 fS

MHz

INPUT LOGIC

VIH(1)

VDD

Input logic level

VDC

VIL(1)

0.8

VIH(2)(3)

5.5

Input logic level

VDC

VIL(2) (3)

0.8

IIH(2)

VIN = VDD

±10

Input logic current

µA

IIL(2)

VIN = 0 V

±10

IIH(1)(3)

VIN = VDD

100

Input logic current

µA

IIL(1) (3)

VIN = 0 V

±10

OUTPUT LOGIC

VOH(4)

IOUT = –4 mA

2.8

VDC

VOL(4)(5)

IOUT = 4 mA

0.5

Output logic level

VOH(6)

IOUT = –0.3 mA

4.5

VDC

VOL(6)

IOUT = 0.3 mA

0.5

MICROPHONE AMPLIFIER

Input level

Single-ended

mVrms

Gain

Single-ended

Input resistance

Single-ended

Ω

Frequency response

–3 dB

kHz

SNR

1-kHz, 100-mVrms output

THD+N

1-kHz, 1-Vrms output

–77

MICROPHONE BIAS GENERATOR

0.75 VCC1

Output voltage

IOUT = –1 mA

0.75 VCC1

– 0.15

+ 0.15

Output source current

Output impedance

Ω

Output noise voltage

100 Hz–20 kHz, with 10-

µF

1.8

µVrms

decoupling

REFERENCE OUTPUT

0.5 VCC1

Output voltage

IOUT = ±10 mA

0.5 VCC1

– 0.15

+ 0.15

Output source/sink current

Output impedance

Ω

Output noise voltage

100 Hz–20 kHz, with 10-

µF

1.8

µVrms

decoupling

(1)

Pins 10, 11: LRCK, BCK (Schmitt-trigger input with 50-k

Ω typical internal pulldown resistor)

(2)

Pins 12, 17, 18, 19, 21: DIN, SCKI, SDA, SCL, I2CEN (Schmitt-trigger input, 5-V tolerant)

(3)

Pins 9, 20 : PDWN, ADR (Schmitt-trigger input with 50-k

Ω typical internal pulldown resistor, 5-V tolerant).

(4)

Pins 13, 14: DOUT, DOUTS

(5)

Pin 18: SDA (Open-drain LOW output)

(6)

Pin 3: L/M

PCM3052ARTF 数据表(PDF) 3 Page - Texas Instruments

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PCM3052ARTF 数据表(PDF) 3 Page - Texas Instruments

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