wm9708 Wolfson Microelectronics plc, wm9708 Datasheet - Page 8

• Manufacturer Part Number: wm9708
• Description: Ac?97 Revision 2.1 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

WM9708
Notes:
1.
2.
w
Test Characteristics:
AVDD = 5V, GND = 0V …………..T
DVDD = 3.3V, GND = 0V …………..T
PARAMETER
Mixer Circuit Specifications (AVDD = 3.3V) 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 (Note 2)
Frequency response (+/-1dB)
Input impedance (CD inputs)
Input impedance (other Mixer
inputs)
Input impedance MIC inputs
PSRR
Clock Frequency Range
Crystal clock
BITCLK frequency
SYNC frequency
SNR is the ratio of 0dB signal output to the output level with no signal, measured A-weighted over a 20Hz to 20kHz
bandwidth.
Inputs are scaled for AVDD eg; 0dBv at 5.0V is equivalent to –3.6dBv at 3.3V.
A
= 25
A
SYMBOL
= 25
o
C, unless otherwise stated
o
C, unless otherwise stated
TEST CONDITIONS
-3.6dBv input
At max gain
At max gain
20 to 20kHz
At any gain
At 0db gain
At 0db gain
20
MIN
24.576
12.288
48.0
100
110
0.6
1.2
95
90
85
15
20
30
50
TYP
PD, Rev 4.2, August 2009
20,000
MAX
Production Data
Vrms
Vrms
MHz
MHz
dBv
kHz
UNIT
kΩ
kΩ
kΩ
kΩ
dB
dB
Hz
kΩ
dB
8