WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 10

• Manufacturer Part Number: WM8985GEFL
• Description: Audio CODECs Multimedia CODEC with Class D HP
• Manufacturer: Wolfson Microelectronics

Specifications of WM8985GEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8985
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Test Conditions
DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, T
PARAMETER
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel Separation
Analogue to Digital Converter (ADC) - Input from L2, R2 into left and right PGA mixer. INPPGAVOLL, INPPGAVOLR,
L2_2BOOSTVOL, R2_2BOOSTVOL, ADCLVOL and ADCRVOL = 0dB
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel Separation
DAC to left and right mixers into 10kΩ / 50pF load on LOUT1 and ROUT1
LOUT1VOL, ROUT1VOL, DACLVOL and DACRVOL = 0dB
Full-scale output
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel Separation
1
6
6
6
3
3
4
4
4
5
5
5
SYMBOL
THD+N
THD+N
THD+N
SNR
THD
THD
SNR
THD
A
= +25
1kHz full scale input signal
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
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TEST CONDITIONS
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
ROUTVOL = 0dB
1kHz input signal
LOUT1VOL and
22Hz to 20kHz
22Hz to 20kHz
22Hz to 20kHz
22Hz to 20kHz
0dBFS input
0dBFS input
0dBFS input
0dBFS input
-7dBV Input
-7dBV Input
-7dBV Input
-7dBV Input
-1dBV Input
-1dBV Input
-1dBV Input
-1dBV Input
1kHz signal
A-weighted
A-weighted
A-weighted
A-weighted
MIN
85
92
AVDD1/3.3
92.5
92.5
95.5
93.5
TYP
100
100
100
-75
-75
-72
-72
-83
-66
-81
-65
-84
-84
-82
-82
90
90
98
96
PD, Rev 4.6, July 2009
MAX
-80
-78
-70
-68
-78
-70
Production Data
dBFS
dBFS
dBFS
dBFS
UNIT
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
rms
10