WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 13

• 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

Production Data
w
Test Conditions
DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, T
PARAMETER
LIN and RIN input PGA to input boost stage into 10kΩ / 50pF load on OUT3/OUT4 outputs
INPPGAVOLL, INPPGAVOLR, PGABOOSTL and PGABOOSTR = 0dB
Full-scale output voltage, 0dB gain
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel Separation
LIN and RIN into input PGA Bypass to LOUT1 and ROUT1 into 16Ω / 50pF loads
BYPLMIXVOL, BYPRMIXVOL, LOUT1VOL and ROUT1VOL = 0dB
Full-scale output voltage, 0dB gain
Signal to Noise Ratio
Total Harmonic Distortion
Total Harmonic Distortion + Noise
Channel separation
Microphone Bias
Bias Voltage
Bias Current Source
Output Noise Voltage
6
6
3
3
4
4
5
5
SYMBOL
THD+N
THD+N
SNR
THD
SNR
THD
A
= +25
for V
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
1kHz full scale signal
o
TEST CONDITIONS
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
full-scale signal
full-scale signal
full-scale signal
full-scale signal
full-scale signal
full-scale signal
full-scale signal
full-scale signal
22Hz to 22kHz
22Hz to 22kHz
22Hz to 22kHz
22Hz to 22kHz
1kHz to 20kHz
MICBIAS
MBVSEL=0
MBVSEL=1
A-weighted
A-weighted
A-weighted
A-weighted
within +/-3%
MIN
90
90
0.65*AVDD1
AVDD2/3.3
AVDD1/3.3
0.9*AVDD1
95.5
93.5
95.5
93.5
TYP
100
100
100
-84
-82
-82
-80
-87
-69
-85
-68
98
96
96
15
PD, Rev 4.6, July 2009
MAX
-75
-73
3
WM8985
nV/√Hz
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
UNIT
V
V
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
rms
rms
13