IS31AP2117 Datasheet, PDF (1/9 Pages) Integrated Silicon Solution, Inc – 8W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER

IS31AP2117
8W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER
Advanced Information
July 2012
GENERAL DESCRIPTION
The IS31AP2117 is an 8W/CH, dual channel, Class-D
stereo driver in our audio amplifier family. It is suitable
for powering the audio components of various
equipments, including typical consumer electronics,
high performance audio speakers.
IS31AP2117 has several key features which
distinguishes itself from other alternatives on the
market. On-board AGC, EMI suppression, and 92%
typical operating efficiency are key features of this
part. EMI suppression circuit, which eliminates LC,
filters at the outputs. These features simplify customer
design, reduces system cost and PCB area.
The IS31AP2117 integrates automatic gain control
function with adjustable power limit. When output
power goes over the power limit, IS31AP2117 can
reduce gain automatically to pull down the output
power, so that keep the output power around power
limit while the input level is high. The IS31AP2117 has
short circuit and thermal protection features integrated
on board.
FEATURES
 Mono 6W, at 8Ω @ 1% THD, V_CC=12V
 Mono 15W, at 8Ω @ 10% THD, V_CC=16V
 Dual 8W/CH, at 8Ω @ 10% THD, V_CC =24V
 92% typical operating efficiency
 8V< V_IN <26V
 Filter-less EMI suppression
 Integrated AGC with adjustable power limit
 Four selectable, gain preset levels: 20dB, 26dB,
32dB, 36dB
 High SNR, low THD+N
 Thermal and short-circuit protection
 Over/under-voltage protection
 Mute features
 Clock selection
 TSSOP-28 package
APPLICATIONS
 Consumer audio equipment
 HDTV, home theater equipment
 Automotive audio amplifier
 Performance stereo speakers
TYPICAL APPLICATION CIRCUIT
VCC
8V~26V
10 F
7
AVCC
0.1 F
PVCC
15,16
VCC
8V~26V
27,28
1F
470 F
Micro
Controller
100k
Right Input
Left Input
14
MUTE
2
FSEL
5
GAIN0
6
GAIN1
1
SDB
CINR+
1 F ₁₃
12
CINR-
1F
INR+
INR-
CINL+
1F ₃
4
CINL-
1F
INL+
INL-
10
AVDD
11
AGCLMT
IS31AP2117
26 0.22 F
BSL
24,25
33 H
OUTL
PGND
OUTR
BSR
20~23
0.22 F
18,19
0.22 F
17
33 H
0.22 F
9
BYPASS
8
1F
AGND
Figure 1 Typical Application Circuit (Stereo Mode Application)
470 F
470 F
Integrated Silicon Solution, Inc. – www.issi.com
1
Rev. 00A, 07/10/2012