WM8976GEFL/V Wolfson Microelectronics, WM8976GEFL/V Datasheet - Page 8

Audio CODECs Mono ADC Stereo DAC with Spkr

WM8976GEFL/V

Manufacturer Part Number
WM8976GEFL/V
Description
Audio CODECs Mono ADC Stereo DAC with Spkr
Manufacturer
Wolfson Microelectronics
Datasheet

Specifications of WM8976GEFL/V

Mounting Style
SMD/SMT
Package / Case
QFN-32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
WM8976
w
Test Conditions
DCVDD=1.8V, AVDD=DBVDD=SPKVDD= 3.3V, T
PARAMETER
Digital to Analogue Converter (DAC) to Line-Out (LOUT1, ROUT1 with 10kΩ / 50pF load)
Full-scale output
Signal to Noise Ratio (Note 6)
Total Harmonic Distortion
(Note 7)
Channel Separation (Note 9)
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 32Ω load)
0dB full scale output voltage
Signal to Noise Ratio
Total Harmonic Distortion
Speaker Output (LOUT2, ROUT2 with 8Ω bridge tied load, INVROUT2=1)
Full scale output voltage, 0dB
gain. (Note 9)
Output Power
Total Harmonic Distortion
Signal to Noise Ratio
Power Supply Rejection Ratio
(50Hz-22kHz)
SYMBOL
PSRR
SNR
SNR
SNR
THD
THD
THD
P
O
A
Guaranteed monotonic
Guaranteed monotonic
PGA gains set to 0dB,
PGA gains set to 0dB,
P
P
P
P
1kHz, full scale signal
R
SPKVDD=5V (boost)
R
TEST CONDITIONS
= +25
O
O
O
O
L
OUT34BOOST=0
OUT34BOOST=1
L
= 32 Ω, Po=20mW
SPKVDD=3.3V,
full-scale signal
=200mW, R
=320mW, R
=500mW, R
=860mW, R
= 16Ω, Po=20mW
SPKVDD=3.3V
SPKVDD=3.3V
SPKBOOST=0
SPKBOOST=1
SPKVDD=5V,
SPKVDD=5V
SPKVDD=5V
R
R
AVDD=3.3V
AVDD=3.3V
1kHz signal
A-weighted
A-weighted
R
L
L
o
R
R
= 8Ω BTL
= 8Ω BTL
L
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
= 10kΩ
L
L
Output power is very closely correlated with THD; see below
= 8Ω
= 8Ω
L
L
L
L
= 8Ω,
= 8Ω,
= 8Ω,
= 8Ω,
MIN
90
(SPKVDD/3.3)*1.5
SPKVDD/3.3
(AVDD/3.3)
AVDD/3.3
AVDD/3.3
0.003
0.008
1.5x
0.04
0.02
- 82
TYP
110
102
-84
-15
-57
-92
-68
1.0
-40
-74
1.0
-40
98
+6
+6
85
90
90
80
69
3
1
MAX
-76
PD Rev 4.4 July 2009
Production Data
Vrms
Vrms
Vrms
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
%
%
%
%
8

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