WM8959 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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Fabricante

WM8959

Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver

Wolfson Microelectronics plc 

Pre-Production

WM8959

ELECTRICAL CHARACTERISTICS

Test Conditions

DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, TA = +25oC, 1kHz signal, fs = 48kHz,

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

PARAMETER

TEST CONDITIONS

MIN TYP MAX UNIT

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

A1 Maximum Full-Scale PGA

Single-ended PGA

Input Signal Level

input on LIN1, LIN3,

RIN1 or RIN3, output

Note 1: This changes in

to INMIXL or INMIXR

proportion to AVDD

Differential PGA input

(AVDD/3.3).

on LIN1/LIN2,

LIN3/LIN4, RIN1/RIN2

Note 2: When mixing input

PGA outputs and line

inputs the total signal

must not exceed 1Vrms

(0dBV).

or RIN3/RIN4, output

to INMIXL or INMIXR

Differential input to

two single-ended PGA

inputs on LIN1/LIN3

or RIN1/RIN3, output

Note 3: A 1.0Vrms

differential signal equates

to DIFFINL or

DIFFINR

to 0.5Vrms/-6dBV per

input.

1.0

Vrms

0

dBV

1.0

Vrms

0

dBV

1.0

Vrms

0

dBV

A2 Maximum Full-Scale Line

Line input on LIN2,

Input Signal Level

LIN4, RIN2 or RIN4 to

INMIXL or INMIXR

1.0

Vrms

0

dBV

Note 1: This changes in

proportion to AVDD

(AVDD/3.3).

Note 2: When mixing line

inputs, input PGA outputs

and DAC outputs the total

signal must not exceed

1Vrms (0dBV).

Line input on LIN2 or

RIN2 to SPKMIX

1.0

Vrms

0

dBV

Note 3: A 1.0Vrms

differential signal equates

to 0.5Vrms/-6dBV per

input.

Line input on LIN3 or

RIN3 to LOMIX or

ROMIX

1.0

Vrms

0

dBV

Differential mono line

input on RXP/RXN to

RXVOICE

Differential mono line

input on RXP/RXN to

differential output on

OUT3/OUT4

1.0

Vrms

0

dBV

1.0

Vrms

0

dBV

w

PP, May 2008, Rev 3.1

11

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