WM9712CLGEFL Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM9712CLGEFL Datasheet PDF : 78 Pages
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WM9712L
Production Data
AUDIO INPUTS
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, TA = +25oC, 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
Full Scale Input Signal Level
(for ADC 0dB Input at 0dB Gain)
VINFS
AVDD = 3.3V
AVDD = 1.8V
1.0
0.545
V rms
Input Resistance
Input Capacitance
differential input mode
(MS = 01)
half of the value listed above
RIN
0dB PGA gain
34
k
12dB PGA gain
10
16
22
5
pF
Line input to ADC (LINEINL, LINEINR, PHONE)
Signal to Noise Ratio
SNR
(A-weighted)
85
92
dB
Total Harmonic Distortion
Power Supply Rejection
THD
PSRR
-6dBFs
20Hz to 20kHz
-87
-80
dB
50
dB
Microphone input to ADC (MIC1/2 pins)
Signal to Noise Ratio
SNR
20dB boost enabled
80
dB
(A-weighted)
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 = +25oC, unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
Resolution
Full scale output voltage
AVDD=3.3V
Signal to Noise Ratio
SNR
(A-weighted)
Total Harmonic Distortion
THD
MIN
65
TYP
12
1
70
-62
MAX
-50
UNIT
bits
Vrms
dB
dB
w
PD, Rev 4.6, November 2011
8
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