WM8777
Product Preview
Test Conditions
AVDDDAC = 5V, AVDDADC=5V, DVDD = 3.3V, AGNDDAC = 0V, AGNDADC = 0, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK
= 256fs, ADC/DAC in Slave Mode unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
20Hz to 20kHz
100mVpp
45
dB
Input Resistance (AIN1 -> AIN6)
Input Capacitance
20
10
kΩ
pF
(AIN1 -> AIN6)
ADC PGA Output to Analogue Output (L/RSUMOP, CNTSOP, LFESOP, L/RSUROP, L/RAUXSOP) (Load=10k Ω, 50pF,
gain = 0dB) Bypass Mode
0dB Full scale output voltage
1.0 x
Vrms
AVDDDAC/5
SNR (Note 1)
THD
90
104
-93
-95
50
dB
dB
dB
dB
dB
dB
1kHz, 0dB
1kHz, -3dB
Power Supply Rejection Ratio
Mute Attenuation
PSRR
1kHz 100mVpp
20Hz to 20kHz 100mV
1kHz, 0dB
45
100
Analogue Input (AIN6) to Analogue Output (FRONTL, FRONTR) (Load=10k Ω, 50pF, gain = 0dB) Bypass Mode
0dB Full scale output voltage
1.0 x
Vrms
AVDDDAC/5
SNR (Note 1)
THD
90
90
90
104
-93
-95
50
dB
dB
dB
dB
dB
dB
1kHz, 0dB
1kHz, -3dB
Power Supply Rejection Ratio
PSRR
PSRR
PSRR
1kHz 100mVpp
20Hz to 20kHz 100mV
1kHz, 0dB
45
Mute Attenuation
100
ADC PGA to REC Output
0dB Full scale output voltage
1.0 x
Vrms
AVDDDAC/5
SNR (Note 1)
THD
104
-93
-95
50
dB
dB
dB
dB
dB
dB
1kHz, 0dB
1kHz, -3dB
Power Supply Rejection Ratio
1kHz 100mVpp
20Hz to 20kHz 100mV
1kHz, 0dB
45
Mute Attenuation
100
L/RSUMOP to REC Output
0dB Full scale output voltage
1.0 x
Vrms
AVDDDAC/5
SNR (Note 1)
THD
104
-93
-95
50
dB
dB
dB
dB
dB
dB
1kHz, 0dB
1kHz, -3dB
Power Supply Rejection Ratio
Mute Attenuation
1kHz 100mVpp
20Hz to 20kHz 100mV
1kHz, 0dB
45
100
Volume Controls (FRONTL, FRONTR, CNTR, LFE, SURR, SURL, AUXL, AUXR, HPHONER, HPHONEL, LFESUM)
Analogue output Volume Gain
Step Size
0.5
1
1.5
dB
dB
dB
dB
Analogue output Volume Gain
Range
1kHz Input
-100
+20
Analogue output Volume Mute
Attenuation
1kHz Input, 0dB gain
100
1
Analogue Tone volume step size
PP Rev 1.94 November 2004
8
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
