APA2020A
Electrical Characteristics (Cont.)
AC Operating Characteristics , V
DD
= 3.3V , T
A
= 25°C , R
L
= 4Ω (unless otherwise noted)
Symbol
PSRR
Parameter
Power supply ripple rejection
Mute attenuation
Channel-to-channel output
separation
Line HP input separation
BTL attenuation in SE mode
ZI
Vn
Input impedance
Signal-to-noise ratio
Output noise voltage
Po = 500 mW , BTL
f =1 KHz
Test Condition
f =100 Hz
APA2020A
Min. Typ. Max.
70
85
85
75
80
2
90
50
Unit
dB
dB
dB
dB
dB
MΩ
dB
µV(rms)
Notes 2 : Output power is meaured at the output teminals of the IC at 1 KHz.
DC Electrical Characteristic , T
A
=25 °C
Symbol
Parameter
Test Conditions
Stereo BTL
Stereo SE
V
DD
= 3.3 V Stereo BTL
Stereo SE
V
DD
=5V, Gain = 2, see Note3
V
DD
= 5V
APA2020
A
Typ.
Max.
8
11
4
6.5
7
9
3.5
5.6
5
25
8
0.5
11
5
Unit
mA
mA
mA
mA
mV
mA
µ
A
I
DD
Supply Current
V
O (DIFF)
I
DD(MUTE)
I
SD
DC Differential Output
Voltage
Supply Current in Mute Mode V
DD
= 5V
I
DD
in Shutdown
V
DD
= 5V
Note 3 : at 3V<V
DD
<5V , the DC output voltage is approximately V
DD
/ 2.
Copyright
ANPEC Electronics Corp.
Rev. A.5 - July., 2002
5
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
