IS31AP4088A-QFLS2-TR Datasheet, PDF (1/20 Pages) Integrated Silicon Solution, Inc – DUAL 2.84W STEREO AUDIO AMPLIFIER PLUS HEADPHONE DRIVER

IS31AP4088A
DUAL 2.84W STEREO AUDIO AMPLIFIER PLUS HEADPHONE DRIVER
January 2012
GENERAL DESCRIPTION
KEY SPECIFICATIONS
The IS31AP4088A is a dual bridge-connected audio
power amplifier which, when connected to a 5V supply,
will deliver 2.84W to a 4Ω load.
To simplify audio system design, the IS31AP4088A
combines dual bridge speaker amplifiers and stereo
headphone amplifiers on one chip.
The IS31AP4088A features a low-power consumption
shutdown mode and thermal shutdown protection. It
also utilizes circuitry to reduce “clicks and pops” during
device turn-on.
APPLICATIONS
 P_O at 1% THD+N, V_DD = 5V
R_L = 4Ω ----------------------------- 2.30W (Typ.)
R_L = 8Ω ----------------------------- 1.38W (Typ.)
 P_O at 10% THD+N, V_DD = 5V
R_L = 4Ω ----------------------------- 2.84W (Typ.)
R_L = 8Ω ----------------------------- 1.71W (Typ.)
 P_O at 1% THD+N, V_DD = 4V
R_L = 4Ω ----------------------------- 1.40W (Typ.)
R_L = 8Ω ----------------------------- 0.89W (Typ.)
 Shutdown current ------------------ 0.04μA (Typ.)
 Supply voltage range -------------- 2.7V ~ 5.5V
 QFN-16(4mm × 4mm) package
 Cell phones, PDA, MP4, PMP
 Portable and desktop computers
 Desktops audio system
 Multimedia monitors
FEATURES
 Suppress “click-and-pop”
 Thermal shutdown protection circuitry
 Stereo headphone amplifier mode
 Micro power shutdown mode
TYPICAL APPLICATION CIRCUIT
INA
BNC
C1
R1
20K
0.22uF
R2
20K
VCC
C3
4 INA
1uF
2,11
VDD
-
+
VCC
SHUTDOWN WORKING
15 SHUTDOWN
-OUTA 3
C5 100uF
9 BYPASS
C4
1uF
+OUTA 1
-
VCC
R7 100K
+
HP Sense 14
R8 100K
+
-
+OUTB 12
INB
BNC
C2
R3
20K
0.22uF
8 INB
+
-
GND
5,6,7,13,16
-OUTB 10
C6 100uF
R5 1K
PHONEJACK (STEREO)
R6 1K
R4
20K
Figure 1 Typical Application Circuit
Integrated Silicon Solution, Inc. – www.issi.com
1
Rev.A, 12/21/2011