PCM3052ARTF datasheet(8/48 Pages) TI2

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TYPICAL PERFORMANCE CURVES OF INTERNAL FILTER (ADC SECTION)

DIGITAL FILTER

Normalized Frequency [

×fS]

−200

−150

−100

−50

G001

Normalized Frequency [

×fS]

−100

−80

−60

−40

−20

0.0

0.2

0.4

0.6

0.8

1.0

G002

PCM3052A

SLES160 – NOVEMBER 2005

DEVICE INFORMATION (continued)

TERMINAL FUNCTIONS (continued)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

SCKI

System clock input, 256 fS(3)

SCL

Mode control clock input (3)

SDA

I/O

Mode control data input/output (4)

VCC1

ADC analog power supply, 5 V

VCC2

DAC analog power supply, 5 V

VCC3

Microphone amplifier and bias analog power supply, 5 V

VCOM

DAC common voltage decoupling, 0.5 VCC2

VDD

Digital power supply, 3.3 V

VINL

Line input to ADC, L-channel

VINR

Line input to ADC, R-channel

VOUTL

Analog output from DAC, L-channel

VOUTR

Analog output from DAC, R-channel

VREF1

ADC reference 1 voltage output, 0.5 VCC1

VREF2

ADC reference 2 voltage decoupling, VCC1

(4)

Schimtt-trigger input/open-drain LOW output, 5-V tolerant

All specifications at T

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

otherwise noted.

OVERALL CHARACTERISTICS

STOP-BAND ATTENUATION CHARACTERISTICS

Figure 1.

Figure 2.

PCM3052ARTF 数据表(PDF) 8 Page - Texas Instruments

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