WM8980CGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM8980CGEFL/RV Datasheet - Page 7

• Manufacturer Part Number: WM8980CGEFL/RV
• Description: Stereo CODEC with Speaker Driver and Video Buffer
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Pre-Production
ELECTRICAL CHARACTERISTICS
w
Test Conditions
DCVDD=1.8V, AVDD=DBVDD=SPKVDD=VBVDD = 3.3V, T
otherwise stated.
PARAMETER
Microphone Preamp Inputs (LIP, LIN, RIP, RIN, L2, R2)
Full-scale Input Signal Level –
note this changes in proportion
to AVDD (Note 1)
Mic PGA equivalent input noise
Input resistance
MIC Programmable Gain Amplifier (PGA)
Maximum Programmable Gain
Minimum Programmable Gain
Programmable Gain Step Size
Mute Attenuation
Selectable Input Gain Boost (0/+20dB)
Gain Boost on PGA input
Maximum Gain from AUXL/R or
L/R2 input to boost/mixer
Minimum Gain from AUXL/R or
L/R2 input to boost/mixer
Gain step size to boost/mixer
Auxiliary Analogue Inputs (AUXL, AUXR)
Full-scale Input Signal Level
(0dB) – note this changes in
proportion to AVDD
Input Resistance
(Note 2)
Input Capacitance
At 35.25dB
R
SYMBOL
R
R
R
R
R
AUXINRMAX
AUXINLMAX
AUXINRTYP
AUXINLMIN
AUXINLTYP
AUXINRMIN
R
R
R
R
C
C
V
V
gain
MICIN
MICIN
MICIN
MICIP
MICIN
MICIN
INFS
INFS
Right Input boost, mixer and
Right Input boost, mixer and
Right Input boost, mixer and
Guaranteed monotonic
Guaranteed monotonic
beep enabled, at max gain
Left Input boost and mixer
Left Input boost and mixer
Left Input boost and mixer
beep enabled, at 0dB gain
beep enabled, at min gain
TEST CONDITIONS
Gain set to 35.25dB
INPPGAVOL = 0dB
PGABOOST = 0dB
L/RIP2INPPGA = 1
Gain set to -12dB
enabled, at max gain
enabled, at 0dB gain
enabled, at min gain
Gain set to 0dB
Boost disabled
Boost enabled
0 to 20kHz
A
= +25
o
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless
MIN
AVDD/3.3
35.25
0.75
39.1
TYP
150
-12
-12
1.0
1.6
120
4.3
8.6
+6
47
75
94
10
20
29
10
0
0
3
0
3
6
PP, Rev 3.8, May 2012
MAX
WM8980
Vrms
Vrms
UNIT
dBV
dBV
uV
k
k
k
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
k
k
k
k
k
k
pF
pF
7