WM8980CGEFL/RV WOLFSON [Wolfson Microelectronics plc], WM8980CGEFL/RV Datasheet - Page 8

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

WM8980
w
Test Conditions
DCVDD=1.8V, AVDD=DBVDD=SPKVDD=VBVDD = 3.3V, T
otherwise stated.
PARAMETER
Automatic Level Control (ALC)
Target Record Level
Programmable gain
Gain Hold Time (Note 3,5)
Gain Ramp-Up (Decay) Time
(Note 4,5)
Gain Ramp-Down (Attack) Time
(Note 4,5)
Mute Attenuation
Analogue to Digital Converter (ADC)
Signal to Noise Ratio (Note 6)
Total Harmonic Distortion
(Note 7)
Channel Separation (Note 9)
Digital to Analogue Converter (DAC) to Line-Out (LOUT1, ROUT1 with 10k / 50pF load)
Full-scale output
Signal to Noise Ratio (Note 6)
Total Harmonic Distortion
(Note 7)
Channel Separation (Note 8)
Output Mixers (LMX1, RMX1)
Maximum PGA gain into mixer
Minimum PGA gain into mixer
PGA gain step into mixer
Analogue Outputs (LOUT1, ROUT1, LOUT2, ROUT2)
Maximum Programmable Gain
Minimum Programmable Gain
Programmable Gain step size
Mute attenuation
Headphone Output (LOUT1, ROUT1 with 32 load)
0dB full scale output voltage
Signal to Noise Ratio
Total Harmonic Distortion
SYMBOL
SNR
SNR
THD
THD
SNR
THD
t
HOLD
t
t
DCY
ATK
Guaranteed monotonic
Guaranteed monotonic
ALCMODE=1 (limiter),
ALCMODE=1 (limiter),
PGA gains set to 0dB,
PGA gains set to 0dB,
1kHz, full scale signal
A-weighted, 0dB gain
R
ALCMODE=0 (ALC),
ALCMODE=0 (ALC),
R
MCLK = 12.288MHz
TEST CONDITIONS
MCLK=12.288MHz
MCLK=12.288MHz
MCLK=12.288MHz
MCLK=12.288MHz
L
OUT34BOOST=0
OUT34BOOST=1
L
1kHz input signal
= 32 , Po=20mW
full-scale signal
= 16, Po=20mW
-3dBFS input
AVDD=3.3V
AVDD=3.3V
1kHz signal
A-weighted
A-weighted
R
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
L
= 10k
A
= +25
o
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless
-22.5
MIN
-12
0, 2.67, 5.33, 10.67, … , 43691
85
90
(time doubles with each step)
(time doubles with each step)
(time doubles with each step)
(time doubles with each step)
(time doubles with each step)
0.73, 1.45, 2.91, … , 744
0.83, 1.66, 3.33, … , 852
0.18, 0.36, 0.73, … , 186
3.3, 6.6, 13.1, … , 3360
(AVDD/3.3)
AVDD/3.3
AVDD/3.3
0.003
0.008
1.5x
TYP
120
110
110
102
- 82
-84
-84
-15
-57
-75
+6
+6
95
98
85
3
1
35.25
PP, Rev 3.8, May 2012
MAX
-1.5
-74
-76
Pre-Production
Vrms
Vrms
UNIT
dB
ms
ms
ms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
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