WM8953 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8953

Low Power Stereo ADC with PLL and TDM Interface

Wolfson Microelectronics plc 

WM8953

ELECTRICAL CHARACTERISTICS

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 1kHz signal, fs = 48kHz,

PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN TYP

Analogue Input Pin Maximum Signal Levels (LIN1, LIN2, LIN3, LIN4, RIN1, RIN2, RIN3, RIN4)

Maximum Full-Scale PGA Single-ended PGA

1.0

Input Signal Level

input on LIN1, LIN3,

0

RIN1 or RIN3, output

Note 1; Note 2; Note 3

to INMIXL or INMIXR

Differential PGA input

1.0

on LIN1/LIN2,

0

LIN3/LIN4, RIN1/RIN2

or RIN3/RIN4, output

to INMIXL or INMIXR

Maximum Full-Scale Line

Line input on LIN2,

1.0

Input Signal Level

LIN4, RIN2 or RIN4 to

0

INMIXL or INMIXR

Note 1; Note 2; Note 3

Production Data

MAX UNIT

Vrms

dBV

Vrms

dBV

Vrms

dBV

Notes

1. Maximum full scale signal changes in proportion to AVDD (AVDD/3.3).

2. When mixing input PGA outputs and line inputs, the total signal must not exceed 1Vrms (0dBV).

3. A 1.0Vrms differential signal equates to 0.5Vrms/-6dBV per input.

w

PD, January 2009, Rev 4.0

8

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