WM9711L Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM9711L Datasheet PDF : 66 Pages
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WM9711L
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
differential input mode
(MS = 01)
half of the value listed above
Input Resistance
RIN
0dB PGA gain
34
kΩ
12dB PGA gain
10
16
22
Input Capacitance
5
pF
Line input to ADC (LINEINL, LINEINR, PHONE)
Signal to Noise Ratio
SNR
85
92
dB
(A-weighted)
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
SNR
20dB boost enabled
80
dB
(A-weighted)
Total Harmonic Distortion
THD
20dB boost enabled
-80
dB
Power Supply Rejection Ratio
PSRR
TBD
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
MIN
TYP
MAX
UNIT
Resolution
12
bits
Full scale output voltage
AVDD=3.3V
1
Vrms
Signal to Noise Ratio
SNR
65
70
dB
(A-weighted)
Total Harmonic Distortion
THD
-62
-50
dB
COMPARATORS
Test Conditions
AVDD = 3.3V, TA = +25oC, unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
COMP1, COMP2 and COMP3 (pins 29, 30, 31)
Input Voltage
Input leakage current
Comparator Input Offset
(COMP1, COMP2 only)
COMP2 delay (COMP2 only)
24.576MHz crystal
MIN
AGND
-50
0
TYP
MAX
AVDD
<10
+50
10.9
UNIT
V
nA
mV
s
w
PD Rev 4.1 April 2004
8
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