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WM9712L Datasheet(PDF) 8 Page - Wolfson Microelectronics plc

Part # WM9712L
Description  AC97 Audio and Touchpanel CODEC
PDF  77 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9712L Datasheet(HTML) 8 Page - Wolfson Microelectronics plc

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WM9712L
Production Data
w
PD Rev 4.5 August 2006
8
AUDIO INPUTS
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, 18-bit audio data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
LINEINL/R, MICL/R and PHONE pins
AVDD = 3.3V
1.0
AVDD = 1.8V
0.545
Full Scale Input Signal Level
(for ADC 0dB Input at 0dB Gain)
VINFS
differential input mode
(MS = 01)
half of the value listed above
V rms
0dB PGA gain
34
Input Resistance
RIN
12dB PGA gain
10
16
22
k
Ω
Input Capacitance
5
pF
Line input to ADC (LINEINL, LINEINR, PHONE)
Signal to Noise Ratio
(A-weighted)
SNR
85
92
dB
Total Harmonic Distortion
THD
-6dBFs
-87
-80
dB
Power Supply Rejection
PSRR
20Hz to 20kHz
50
dB
Microphone input to ADC (MIC1/2 pins)
Signal to Noise Ratio
(A-weighted)
SNR
20dB boost enabled
80
dB
Total Harmonic Distortion
THD
20dB boost enabled
-80
dB
Power Supply Rejection Ratio
PSRR
50
dB
Common Mode Rejection Ratio
CMRR
Differential mic mode
TBD
dB
AUXILIARY MONO DAC (AUXDAC)
Test Conditions
AVDD = 3.3V, TA = +25
oC, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
12
bits
Full scale output voltage
AVDD=3.3V
1
Vrms
Signal to Noise Ratio
(A-weighted)
SNR
65
70
dB
Total Harmonic Distortion
THD
-62
-50
dB



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