参数资料
型号: G1432
厂商: Global Mixed-mode Technology Inc.
元件分类: 音频放大器
英文描述: 2W Stereo Audio Amplifier
中文描述: 2W立体声音频放大器
文件页数: 1/15页
文件大小: 340K
代理商: G1432
Ver: 1.1
Jun 21, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G1432
Global Mixed-mode Technology Inc.
2W Stereo Audio Amplifier
Features
Depop Circuitry Integrated
Output Power at 1% THD+N, VDD=5V
--1.8W/CH (typical) into a 4
Ω Load
--1.2W/CH (typical) into a 8
Ω Load
Maximum Output Power Clamping Circuitry
Integrated
Bridge-Tied Load (BTL)
Stereo Input MUX
Mute and Shutdown Control Available
Surface-Mount Power Package
24-Pin TSSOP-P & 24-Pin QFN Available
Applications
Stereo Power Amplifiers for Notebooks or
Desktop Computers
Multimedia Monitors
Stereo Power Amplifiers for Portable Audio
Systems
General Description
The G1432 is a stereo audio power amplifier in 24pin
TSSOP thermal pad package or 24pin QFN package.
It can drive 1.8W continuous RMS power into 4
Ω load
per channel in Bridge-Tied Load (BTL) mode at 5V
supply voltage. Its THD is smaller than 1% under the
above operation condition. The G1432 can mute the
output when Mute is activated. For the low current
consumption applications, the SHDN mode is sup-
ported to disable the G1432 when it is idle. The cur-
rent consumption can be further reduced to below
5A.
The G1432 also supports two input paths, that means
two different gain loops can be set in the same PCB
and choosing either one by setting
1
IN /IN2 pin. It en-
hances the hardware designing flexibility. The G1432
also supports an extra function -- the maximum output
power clamping function to protect the speakers from
burned-out.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Pb free)
G1432F3U
G1432
-40°C to +85°C TSSOP-24 (FD)
G1432Q5U
G1432
-40°C to +85°C
QFN4X4-24
Note: F3:TSSOP-24 (FD) Q5:QFN4X4-24
U: Tape & Reel
Pin Configuration
G1432
ROUT+
RIN1
RIN2
RBYPASS
RVDD
GND
IN1/IN2
ROUT-
MUTE
GND/HS
LOUT+
LIN1
LIN2
LBYPASS
LVDD
SHUTDOWN
NC
LOUT-
NC
GND/HS
TSSOP-24 (FD)
13
24
23
22
21
20
19
18
17
16
15
5
6
7
8
9
10
11
12
1
4
3
2
14
NC
VOL
Thermal
Pad
Top View
Bottom View
GND/HS
G1432 QFN4X4-24
RI
N1
RI
N2
R
B
YP
BA
SS
RV
DD
GN
D
IN
1/
IN
2
LI
N
1
LI
N2
LB
Y
P
ASS
LV
D
SH
U
T
DO
W
N
NC
1
2
3
4
5
6
13
14
15
16
17
18
GND/HS
LOUT+
NC
VOL
ROUT+
24
19
20
21
23
22
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
MUTE
LOUT-
NC
ROUT-
8
7
9
10
11
12
GND/HS
Thermal
Pad
G1432
ROUT+
RIN1
RIN2
RBYPASS
RVDD
GND
IN1/IN2
ROUT-
MUTE
GND/HS
LOUT+
LIN1
LIN2
LBYPASS
LVDD
SHUTDOWN
NC
LOUT-
NC
GND/HS
TSSOP-24 (FD)
13
24
23
22
21
20
19
18
17
16
15
5
6
7
8
9
10
11
12
1
4
3
2
14
NC
VOL
Thermal
Pad
Top View
Bottom View
GND/HS
G1432 QFN4X4-24
RI
N1
RI
N2
R
B
YP
BA
SS
RV
DD
GN
D
IN
1/
IN
2
LI
N
1
LI
N2
LB
Y
P
ASS
LV
D
SH
U
T
DO
W
N
NC
1
2
3
4
5
6
13
14
15
16
17
18
GND/HS
LOUT+
NC
VOL
ROUT+
24
19
20
21
23
22
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
MUTE
LOUT-
NC
ROUT-
8
7
9
10
11
12
GND/HS
Thermal
Pad
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