WM9711LGEFL(2006) Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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Компоненты Описание

производитель

WM9711LGEFL
(Rev.:2006)

Low Power Audio CODEC for Portable Applications

Wolfson Microelectronics plc 

Production Data

WM9711L

REFERENCE VOLTAGES

Test Conditions

DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 18-bit audio data unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

Audio ADCs, DACs, Mixers

Reference Input/Output

CAP2 pin

1.6

1.65

1.7

V

Buffered Reference Output

VREF pin

1.6

1.65

1.7

V

Microphone Bias

Bias Voltage

VMICBIAS

2.88

2.97

3.06

V

Bias Current Source

Output Noise Voltage

IMICBIAS

Vn

1K to 20kHz

3

mA

15

nV/√Hz

DIGITAL INTERFACE CHARACTERISTICS

Test Conditions

DBVDD = 3.3V, DCVDD = 3.3V, TA = +25oC, unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

Digital Logic Levels (all digital input or output pins) – CMOS Levels

Input HIGH level

Input LOW level

Output HIGH level

Output LOW level

Clock Frequency

VIH

VIL

VOH

source current = 2mA

VOL

sink current = 2mA

Master clock (XTLIN pin)

AC’97 bit clock (BIT_CLK pin)

AC’97 sync pulse (SYNC pin)

Note:

MIN

DBVDD×0.7

DBVDD×0.9

TYP

24.576

12.288

48

MAX

DBVDD×0.3

DBVDD×0.1

1. All audio and non-audio sample rates and other timing scales proportionately with the master clock.

2. For signal timing on the AC-Link, please refer to the AC’97 specification (Revision 2.2)

UNIT

V

V

MHz

MHz

kHz

w

PD Rev 4.3 August 2006

9

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