wm9704q Wolfson Microelectronics plc, wm9704q Datasheet - Page 4

• Manufacturer Part Number: wm9704q
• Description: 4-channel Surround Sound Codec
• Manufacturer: Wolfson Microelectronics plc

WM9704Q
WOLFSON MICROELECTRONICS LTD
Test Characteristics:
AVDD = 5V, GND = 0V …………..T
DVDD = 3.3V, GND = 0V …………..T
DAC Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR A-weighted (Note 1)
Full scale output voltage
THD
Frequency response
Transition band
Stop band
Out of band rejection
Spurious tone reduction
PSRR
ADC Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR A-weighted (Note 1)
ADC input for full scale output
THD
Frequency response
Transition band
Stop band
Stop band rejection
PSRR
Mixer Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR CD path A-weighted (Note 1)
SNR Other paths A-weighted
(Note 1)
Maximum input voltage
Maximum output voltage on
LINEOUT
THD
Frequency response (+/-1dB)
Input impedance (CD inputs)
Input impedance (other mixer
inputs)
Input impedance MIC inputs
PSRR
DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
Full scale output voltage
THD
Frequency response
Transition band
Stop band
Out of band rejection
Spurious tone reduction
PSRR
PARAMETER
A
= 0
A
SYMBOL
= 0
o
C to +70
o
C to +70
o
C, unless otherwise stated
o
TEST CONDITIONS
C, unless otherwise stated
-3dBFS input
-3dBFS input
V
20 to 20kHz
20 to 20kHz
20 to 20kHz
20 to 20kHz
V
V
-6dBV input
At max gain
At max gain
At 0db gain
At 0db gain
At any gain
0dBV input
REF
REF
REF
= 1.65V
= 2.5V
= 2.5V
19,200
28,800
19,200
28,800
19,200
28,800
AVSS
MIN
-74
1.0
85
74
20
75
74
20
90
85
74
20
10
10
10
20
-100
-100
TYP
100
100
1.0
-40
1.0
1.0
1.8
0.7
-40
96
90
40
85
90
40
95
90
15
20
80
15
40
96
90
40
19,200
28,800
19,200
28,800
20,000
19,200
28,800
AVDD
MAX
PD Rev 2.3 January 2001
Production Data
kohm
kohm
kohm
kohm
kohm
Vrms
Vrms
Vrms
Vrms
Vrms
UNIT
dB
dB
Hz
Hz
Hz
dB
dB
dB
dB
dB
Hz
Hz
Hz
dB
dB
dB
dB
dB
Hz
dB
dB
dB
Hz
Hz
Hz
dB
dB
dB
4