wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 12

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8903
BYPASS PATH
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Pseudo-differential stereo line input to stereo line output- IN2L-IN3L / IN2R-IN3R pins to LINEOUTL+LINEOUTR pins with
3.01kΩ / 50pF load
Test conditions:
L_MODE = R_MODE = 01b (Differential Line)
LIN_VOL = RIN_VOL = 01111b (+4.2dB)
LINEOUTL_VOL = LINEOUTR_VOL = 111001b (0dB)
Total signal path gain = +4.20dB
PARAMETER
Line Input Full Scale Signal Level
applied to IN2L or IN2R (for ADC
0dBFS output)
Full Scale Output Signal Level
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel Separation
Channel Level Matching
Power Supply Rejection Ratio
Differential stereo line input to stereo line output- IN2L-IN3L / IN2R-IN3R pins to LINEOUTL+LINEOUTR pins with 3.01kΩ /
50pF load
Test conditions:
L_MODE = R_MODE = 01b (Differential Line)
LIN_VOL = RIN_VOL = 00101b (0dB)
LINEOUTL_VOL = LINEOUTR_VOL = 111001b (0dB)
Total signal path gain = 0dB
Line Input Full Scale Signal Level
applied to IN2L or IN2R (for ADC
0dBFS output)
Full Scale Output Signal Level
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
PARAMETER
SYMBOL
SYMBOL
THD+N
THD+N
PSRR
SNR
THD
SNR
THD
10kHz signal, -5.2dBV
1kHz signal, -5.2dBV
1kHz signal, -5.2dBV
20kHz, 100mV pk-pk
TEST CONDITIONS
TEST CONDITIONS
1kHz, 100mVpk-pk
-5.2dBV input
-5.2dBV input
-5.2dBV input
-5.2dBV input
A-weighted
A-weighted
-0.446
0.586
1.657
-4.64
0.95
2.69
MIN
MIN
85
0.617
1.745
0.617
1.745
-4.20
-4.20
2.83
2.83
+/-1
TYP
TYP
1.0
-92
-90
1.0
-92
-89
99
85
80
56
40
97
0
0
PP, Rev 3.1, August 2009
0.648
1.833
0.424
-3.77
MAX
MAX
1.05
2.97
-82
-80
Pre-Production
Vpk-pk
Vpk-pk
Vpk-pk
Vpk-pk
Vrms
Vrms
Vrms
Vrms
UNIT
UNIT
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dBV
dB
dB
dB
12