WM9705SEFT/RV Wolfson Microelectronics, WM9705SEFT/RV Datasheet - Page 9

• Manufacturer Part Number: WM9705SEFT/RV
• Description: Audio CODECs Stereo AC'97 Codec T/P Interface
• Manufacturer: Wolfson Microelectronics

Specifications of WM9705SEFT/RV

• Number Of Adc Inputs: 1
• Number Of Dac Outputs: 1
• Conversion Rate: 48 KSPs
• Interface Type: AC97
• Resolution: 12 bit
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-48
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC, 2 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM9705
w
Test Characteristics:
AVDD = 3.3V, DVDD = 3.3V, 48kHz audio sampling, T
PARAMETER
Mixer Inputs to Line-out (10kΩ load)
Maximum input voltage
Maximum output voltage
Signal to Noise Ratio
A-weighted (Note 2)
Total Harmonic Distortion +
Noise
-1dBfs input
Input impedance (CD inputs)
Input impedance (other mixer
inputs)
Input impedance MIC inputs
Power Supply Rejection Ratio
Headphone Buffer (pins HPOUTL, HPOUR and MONOOUT)
Maximum output voltage
Max Output Power (Note 1)
SNR (Note 2)
Total Harmonic Distortion +
Noise
Power Supply Rejection Ratio
Clocks
Crystal clock
BITCLK frequency
SYNC frequency
SYMBOL
THD+N
THD+N
PSRR
PSRR
SNR
P
O
1kHz, R
1kHz, R
1kHz, R
1kHz, R
20 to 20kHz, without
20 to 20kHz, without
TEST CONDITIONS
CD and LINE inputs
supply decoupling
supply decoupling
A
PCBEEP input
PHONE input
on LINEOUT
Other inputs
= 25
At max gain
At max gain
A-weighted
10mW rms
20mW rms
10mW rms
20mW rms
At any gain
At 0db gain
At 0db gain
MIC1 input
MIC2 input
RL = 32Ω
RL = 16Ω
CD inputs
L
L
L
L
= 32Ω @ P
= 16Ω @ P
= 32Ω@ P
= 16Ω@ P
o
C, unless otherwise stated.
O
O
O
O
=
=
=
=
AGND
MIN
90
82
10
50
10
55
85
0.0044
24.576
12.288
-76dB
-75dB
0.008
0.008
0.003
0.013
0.014
0.016
0.018
0.01
48.0
TYP
100
100
0.7
0.7
-87
-82
-82
-90
-78
-40
0.7
-80
-77
-40
92
93
15
20
20
30
40
92
AVDD
0.014
0.028
0.028
0.028
0.045
MAX
-77
-71
-71
-71
-67
PD Rev 4.5 July 2008
Production Data
Vrms
Vrms
Vrms
UNIT
MHz
MHz
KHz
mW
mW
kΩ
kΩ
kΩ
kΩ
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
%
%
%
9