ISSI IS31AP2121, Manual

Page: 9 / 41

IS31AP2121
Integrated Silicon Solution, Inc. – www.issi.com 9
Rev. C, 10/20/2015
DC ELECTRICAL CHARACTERISTICS (CONTINUE)
T
A
=25°C, unless otherwise noted.
Symbol Parameter Condition Min. Typ. Max. Unit
Logic Electrical Characteristics
V
IH
High level input voltage V
DD
=3.3V 2.0 V
V
IL
Low level input voltage V
DD
=3.3V 0.8 V
V
OH
High level output voltage V
DD
=3.3V 2.4 V
V
OL
Low level output voltage V
DD
=3.3V 0.4 V
C
IN
Input capacitance 6.4 pF
Note 1:
Loudspeaker over-current protection is only effective when loudspeaker drivers are properly connected with external LC filters. Please
refer to the application circuit example for recommended LC filter configuration.
AC ELECTRICAL CHARACTERISTICS
T
A
=25°C, V
CC
=24V, V
DD
= 3.3V, f
S
= 48kHz, R
L
=8 Ω with passive LC lowpass filter (L= 15µH, R
DC
= 63m Ω ,
C=220nF), input is 1kHz sinewave, volume is 0dB unless otherwise specified.
Symbol Parameter Condition Min. Typ. Max. Unit
P
O
RMS output power (Note 2)
THD+N=0.16%, V
CC
=24V, +8dB
volume
10
W
THD+N=0.25%, V
CC
=24V, +8dB
volume
20
THD+N=1%, V
CC
=12V, +8dB volume 7.5
THD+N=10%, V
CC
=12V, +8dB volume 9
PBTL Mode, V
CC
=24V, R
L
=4 Ω ,
THD+N=0.16%, +8dB volume
40
PBTL Mode, V
CC
=12V, R
L
=4 Ω ,
THD+N=1%, +8dB volume
15
PBTL Mode, V
CC
=12V, R
L
=4 Ω ,
THD+N=10%, +8dB volume
18
2.1CH Mode, V
CC
=24V, R
L
=4 Ω ,
THD+N=0.14%, +8dB volume
5
2.1CH Mode, V
CC
=24V, R
L
=4 Ω ,
THD+N=0.16%, +8dB volume
10
2.1CH Mode, V
CC
=12V, R
L
=4 Ω ,
THD+N=1%, +8dB volume
3.7
2.1CH Mode, V
CC
=12V, R
L
=4 Ω ,
THD+N=10%, +8dB volume
4.5
THD+N
Total harmonic dist
noise
V
CC
=24V, P
O
= 7.5W 0.15
%
V
CC
=12V, Po = 2.5W 0.16
V
NO
Output noise 20Hz ~ 20kHz (Note 3) 120 µV
SNR Signal-to-noise ratio
+8dB volume, input level is -9dB
(Note 3)
104 dB
DR Dynamic range
+8dB volume, input level is -68dB
(Note 3)
110 dB
PSRR Power supply ripple rejection V
RIPPLE
= 1V
RMS
at 1kHz -71 dB
Channel separation 1W @1kHz -81 dB