G1432_15 Datasheet, PDF (2/2 Pages) Global Mixed-mode Technology Inc – 2.6W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1432L
2.6W Stereo Audio Amplifier
Features
„ 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
Applications
„ Stereo Power Amplifiers for Notebooks or
Desktop Computers
„ Multimedia Monitors
„ Stereo Power Amplifiers for Portable Audio
Systems
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 sup-
ported to disable the G1432L when it is idle. The cur-
rent consumption can be further reduced to below 5µA
when SHUTDOWN is held low.
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 maxi-
mum output power clamping function to protect the
speakers from burned-out.
Ordering Information
ORDER
NUMBER
MARKING
G1432LF31U
G1432L
G1432LQ51U
1432L
Note: F3:TSSOP-24 (FD) Q5:QFN4X4-24
1:Bonding Code
U: Tape & Reel
Pin Configuration
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Pb free)
TSSOP-24 (FD)
QFN4X4-24
REMARK
OBSOLETE
G1432L
GND/HS 1
NC 2
LOUT+ 3
LIN1 4
LIN2 5
LBYPASS 6
LVDD 7
SHUTDOWN 8
NC 9
LOUT- 10
NC 11
GND/HS 12
24 GND/HS
23 VOL
22 ROUT+
21 RIN1
20 RIN2
19 RBYPASS
18 RVDD
17 GND
16 IN1/IN2
15 ROUT-
14 MUTE
13 GND/HS
Top View
TSSOP-24 (FD)
Thermal
Pad
Bottom View
ROUT+ 19
VOL 20
GND/HS 21
GND/HS 22
NC 23
LOUT+ 24
Thermal
Pad
12 ROUT-
11 MUTE
10 GND/HS
9 GND/HS
8 NC
7 LOUT-
G1432L QFN4X4-24
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
Ver: 1.2
Oct 31, 2008
TEL: [phone]
http://www.gmt.com.tw
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