WM9715L 查看數據表（PDF） - Wolfson Microelectronics plc
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WM9715L Datasheet PDF : 77 Pages
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WM9715L
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
PHONE, LINEINL/R pins
10
17
22
kΩ
PGA gain
MIC1/2 pins
6
12
18
PGA gain
Input Capacitance
5
pF
Line input to ADC (LINEINL, LINEINR)
Signal to Noise Ratio
SNR
80
88
dB
(A-weighted)
Total Harmonic Distortion
THD
-6dBFs
-88
-80
dB
Power Supply Rejection
PSRR
20Hz to 20kHz
50
dB
Microphone input to 32Ω BTL ear speaker on OUT3/HPOUTL
Signal to Noise Ratio
SNR
80
dB
(A-weighted)
Total Harmonic Distortion
THD
-80
dB
Power Supply Rejection Ratio
PSRR
50
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
-63
-50
dB
w
PD Rev 4.0 December 2007
8
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