DA6116.001
27 February, 2009
ANALOG CHARACTERISTICS
N Gain Control
(AVCC=+5.0 V, AGND=0 V, TA=+25oC unless otherwise noted)
Parameter
Symbol
G
Conditions
Min
Typ
Max
Unit
Gain range
-111.5
+15.5
dB
dB
dB
dB
dB
dB
Step size
D
0.5
+15.5
0
Absolute gain
Gain step error
Gain match error1
Mute attenuation
GABS
DE
Absolute gain value with setting G=255
Relative to GABS, note 6
Between channels, note 7
AC measurement
+15
-0.5
-0.2
96
+16
0.5
0.2
ME
0
MATT
Note 6. Gain value for each gain setting is measured as AC measurement relative to GABS assuming a gain step size of 0.5dB. Gain
settings 65…255 are tested in production. Gain error for lower gain settings is guaranteed by design only.
Note 7. Gain mismatch is tested in production for gain settings 90…255. Mismatch for lower gain settings is guaranteed by design only.
N Audio Performance
(AVCC=+5.0 V, AGND=0 V, TA=+25oC unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Noise
N
Vin = 0V, Vout with OP2277,
A-weighting
gain=0dB
11
3.7
2.2
1.8
gain=-40dB
gain=-60dB
gain=mute
Vin=5Vrms, gain=0dB,
fin=800Hz
µVrms
3rd harmonic
component
Total harmonic
3rd HD
THD
SNR
CR
-75
-68
dB
dB
dB
dB
Vin=5Vrms, gain=0dB,
fin=800Hz, 10 harmonics
Vin=5Vrms, gain=0dB,
fin=800Hz, non-weighted
Between channels, Vin =
5Vrms, gain= 0dB, fin = 1kHz
-72
distortion plus noise
Signal to noise ratio
100
Crosstalk
-110
N Peak Level Detection
(AVCC=+5.0 V, AGND=0 V, TA=+25oC unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Peak detector
minimum level
Peak detector
maximum level
Peak detector step
size
VMIN
PD reference = 0
0
18
500
20
mV
VMAX
PD reference = 255
18
60
18.5
72.5
V
VSTEP
90
mV
N Zero Cross Detection Timeout
(AVCC=+5.0 V, AGND=0 V, TA=+25oC unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Zero cross
detection timeout
TDEL
15
22
30
ms
10 (18)
MAS [ MICRO ANALOG SYSTEMS ]
