G1432/L

G1432
Global Mixed-mode Technology Inc.
2.6W Stereo Audio Amplifier
Features
General Description
„
The G1432 is a stereo audio power amplifier in 24pin
TSSOP thermal pad package or 24pin QFN package.
It can drive 2.0W continuous RMS power into 4Ω 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 supported to disable the G1432 when it is idle. The current consumption can be further reduced to below
5µA.
„
„
„
„
„
„
„
Depop Circuitry Integrated
Output Power at 1% THD+N, VDD=5V
--2.0W/CH (typical) into a 4Ω Load
--1.3W/CH (typical) into a 8Ω Load
Output Power at 10% THD+N, VDD=5V
--2.6W/CH (typical) into a 4Ω Load
--1.6W/CH (typical) into a 8Ω 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
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 IN1 /IN2 pin. It enhances the hardware designing flexibility. The G1432
also supports an extra function -- the maximum output
power clamping function to protect the speakers from
burned-out.
Applications
„
Stereo Power Amplifiers for Notebooks or
Desktop Computers
„ Multimedia Monitors
„ Stereo Power Amplifiers for Portable Audio
Systems
Ordering Information
TEMP.
RANGE
ORDER
MARKING
NUMBER
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
RVDD
8
17
GND
NC
9
16
IN1/IN2
LOUT- 10
NC 11
15
14
ROUTMUTE
GND/HS 12
13
GND/HS
Top View
Thermal
Pad
RVDD
GND
IN1/IN2
15
14
13
21
10
GND/HS
9
GND/HS
Thermal
Pad
ROUT-
GND/HS
22
NC
23
8
NC
LOUT+
24
7
LOUT-
Bottom View
TSSOP-24 (FD)
6
18
MUTE
GND/HS
NC
19
7
11
5
6
LVDD
SHUTDOWN
12
20
4
LBYPASS
RIN2
RBYPASS
19
VOL
LVDD
RIN1
20
ROUT+
SHUTDOWN
21
5
RIN2
4
RBYPBASS
LIN1
LIN2
16
ROUT+
3
22
LBYPASS
3
RIN1
VOL
LOUT+
GND/HS
2
23
1
2
LIN1
24
NC
LIN2
1
17
G1432
GND/HS
18
Pin Configuration
G1432 QFN4X4-24
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.3
Apr 13, 2007
1
G1432L
Global Mixed-mode Technology Inc.
2.6W Stereo Audio Amplifier
Features
General Description
„
The G1432L is a stereo audio power amplifier in 24pin
TSSOP thermal pad package or 24pin QFN package.
It can drive 2.0W continuous RMS power into 4Ω 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 G1432L can mute the
output when Mute is activated. For the low current
consumption applications, the SHDN mode is supported to disable the G1432L when it is idle. The current consumption can be further reduced to below 5µA
when SHUTDOWN is held low.
„
„
„
„
„
„
„
Depop Circuitry Integrated
Output Power at 1% THD+N, VDD=5V
--2.0W/CH (typical) into a 4Ω Load
--1.3W/CH (typical) into a 8Ω Load
Output Power at 10% THD+N, VDD=5V
--2.6W/CH (typical) into a 4Ω Load
--1.6W/CH (typical) into a 8Ω 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
The G1432L also supports two input paths, that
means two different gain loops can be set in the same
PCB and choosing either one by setting IN1 /IN2 pin.
It enhances the hardware designing flexibility. The
G1432L also supports an extra function -- the maximum output power clamping function to protect the
speakers from burned-out.
Applications
„
Stereo Power Amplifiers for Notebooks or
Desktop Computers
„ Multimedia Monitors
„ Stereo Power Amplifiers for Portable Audio
Systems
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Pb free)
G1432LF31U
G1432LQ51U
G1432L
1432L
-40°C to +85°C
-40°C to +85°C
TSSOP-24 (FD)
QFN4X4-24
REMARK
OBSOLETE
Note: F3:TSSOP-24 (FD) Q5:QFN4X4-24
1:Bonding Code
U: Tape & Reel
RIN2
RBYPASS
LVDD
SHUTDOWN
7
18
RVDD
8
17
GND
NC
9
16
IN1/IN2
LOUT- 10
NC 11
15
14
ROUTMUTE
GND/HS 12
13
GND/HS
Top View
Thermal
Pad
RVDD
GND
IN1/IN2
15
14
13
21
10
GND/HS
9
GND/HS
Thermal
Pad
ROUT-
GND/HS
22
NC
23
8
NC
LOUT+
24
7
LOUT-
Bottom View
TSSOP-24 (FD)
6
19
MUTE
GND/HS
NC
20
6
11
5
5
12
20
4
LIN2
LBYPASS
19
VOL
LVDD
RIN1
ROUT+
SHUTDOWN
21
RIN2
4
RBYPBASS
LIN1
16
ROUT+
3
22
LBYPASS
3
RIN1
VOL
LOUT+
GND/HS
2
23
1
2
LIN1
24
NC
LIN2
1
17
G1432L
GND/HS
18
Pin Configuration
G1432L QFN4X4-24
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.2
Oct 31, 2008
1