WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 9

• 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
Auxiliary Analogue Inputs (AUXL, AUXR)
Full-scale Input Signal Level
Input Resistance
Input Capacitance
Maximum Gain from AUXL and
AUXR input to left and right input
PGA mixers
Minimum Gain from AUXL and
AUXR input to left and right input
PGA mixers
AUXLBOOSTVOL and
AUXRBOOSTVOL step size
L2, R2 Line Input Programmable Gain
Maximum Gain from L2/R2 input to
left and right input PGA mixers
Minimum Gain from L2/R2 input to
left and right input PGA mixers
L2/R2_2BOOSTVOL step size
L2/R2_2BOOSTVOL mute
attenuation
OUT4 to left or right input boost record path
Maximum Gain into left and right
input PGA mixers
Minimum Gain into left and right
input PGA mixers
OUT4_2ADCVOL gain step size
OUT4_2ADCVOL mute attenuation
Analogue to Digital Converter (ADC) - Input from LIN/P and RIN/P in differential configuration to input PGA
INPPGAVOLL, INPPGAVOLR, PGABOOSTL, PGABOOSTR, ADCLVOL and ADCRVOL = 0dB
Signal to Noise Ratio
3
2
SYMBOL
SNR
A
= +25
Left Input boost and mixer
Left Input boost and mixer
Left Input boost and mixer
AUXL2BOOSTVOL and
AUXL2BOOSTVOL and
Right Input boost, mixer
Right Input boost, mixer
Right Input boost, mixer
Guaranteed monotonic
Guaranteed monotonic
Guaranteed monotonic
enabled, at -12dB gain
enabled, at -12dB gain
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
AVDD1=AVDD2=3.3V
AVDD1=AVDD2=2.5V
enabled, at +6dB gain
L2_2BOOSTVOL and
L2_2BOOSTVOL and
enabled, at 0dB gain
enabled, at 0dB gain
o
TEST CONDITIONS
AUXR2BOOSTVOL
AUXR2BOOSTVOL
All analogue Inputs
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
R2_2BOOSTVOL
R2_2BOOSTVOL
OUT4_2ADCVOL
OUT4_2ADCVOL
Gain adjusted by
Gain adjusted by
enabled, at +6dB
Gain adjusted by
Gain adjusted by
Gain adjusted by
Gain adjusted by
22Hz to 20kHz
22Hz to 20kHz
A-weighted
A-weighted
MIN
AVDD/3.3
92.5
91.5
TYP
100
+12
100
-12
-12
+6
90
90
11
22
60
11
22
60
10
+6
-6
3
3
3
PD, Rev 4.6, July 2009
MAX
WM8985
UNIT
V
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
rms
9