WM9707

Production Data

w

PD Rev 4.1 June 2006

7

Test Characteristics:

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ADC Circuit Specifications (AVDD = 3.3V) 48kHz sampling

SNR A-weighted (Note 1)

85

dB

ADC input for full scale output

VREF = 1.65V

0.7

Vrms

THD

-6dBv input

80

dB

Frequency response

20

19,200

Hz

Transition band

19,200

28,800

Hz

Stop band

28,800

Hz

Stop band rejection

-74

dB

PSRR

20 to 20kHz

40

dB

Mixer Circuit Specifications (AVDD = 3.3V) 48kHz sampling

SNR CD path A-weighted

(Note 1)

95

dB

SNR Other paths A-weighted

(Note 1)

90

dB

Maximum input voltage

0.6

Vrms

Maximum output voltage on

LINEOUT

1.2

Vrms

THD (Note 2)

-3.6dBv input

85

dBv

Frequency response (+/-1dB)

20

20,000

Hz

Input impedance (CD inputs)

At any gain

15

k

Ω

At max gain

20

k

Ω

Input impedance (other Mixer

inputs)

At 0db gain

100

k

Ω

At max gain

30

k

Ω

Input impedance MIC inputs

At 0db gain

110

k

Ω

PSRR

20 to 20kHz

50

dB

Clock Frequency Range

Crystal clock

24.576

MHz

BITCLK frequency

12.288

MHz

SYNC frequency

48.0

kHz

Notes:

1.

SNR is the ratio of 0dB signal output to the output level with no signal, measured A-weighted over a 20Hz to 20kHz

bandwidth.

2.

Inputs are scaled for AVDD eg; 0dBv at 5.0V is equivalent to –3.6dBv at 3.3V.