WM8711L(2006) データシートの表示（PDF） - Wolfson Microelectronics plc

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WM8711L
(Rev.:2006)

Internet Audio DAC with Integrated Headphone Amplifier

Wolfson Microelectronics plc 

Production Data

WM8711 / WM8711L

ELECTRICAL CHARACTERISTICS – WM8711

Test Conditions

AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, MCLK = 256fs

unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

Digital Logic Levels (CMOS Levels)

Input LOW level

Input HIGH level

Output LOW

VIL

VIH

0.7 x DBVDD

VOL

IOL = 1mA

Output HIGH

VOH

Power On Reset Threshold (DCVDD)

IOH = -1mA

0.9 x DBVDD

DCVDD Threshold On -> Off

0.9

Hysteresis

0.3

DCVDD Threshold Off -> On

0.6

Analogue Reference Levels

Reference voltage (VMID)

VVMID

Potential divider resistance

RVMID

Line Output for DAC Playback Only (Load = 10KΩ. 50pF)

AVDD/2

50k

0dBFs Full scale output voltage

At LINE outputs

1.0 x

AVDD/3.3

Signal to Noise Ratio

SNR

A-weighted,

95

100

(Note 1,2)

@ fs = 48kHz

A-weighted

100

@ fs = 96kHz

A-weighted,

98

@ fs = 48kHz, AVDD

= 2.7V

Dynamic Range (Note 2)

DR

A-weighted, -60dB

85

100

full scale input

Total Harmonic Distortion

THD

1kHz, 0dBFs

-86

1kHz, -3dBFs

-90

Power Supply Rejection Ratio

PSRR

1kHz 100mVpp

50

20Hz to 20kHz

45

100mVpp

DAC channel separation

1kHz, 0dB signal

100

Analogue Line Input to Line Output (Load = 10kΩ. 50pF, No Gain on Input ) Bypass Mode

0dB Full scale output voltage

1.0 x

AVDD/3.3

Signal to Noise Ratio

SNR

90

101

(Note 1,2)

Total Harmonic Distortion

THD

1kHz, 0dB

-93

MAX

0.3 x DBVDD

0.10 x

DBVDD

-80

-85

UNIT

V

V

V

V

V

V

V

V

Ω

Vrms

dB

dB

dB

dB

dB

Vrms

dB

dB

w

PD Rev 4.3 September 2006

7

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