Global Mixed-mode Technology Inc.
G1426
2.2W Stereo Audio Amplifier
Features
Depop Circuitry Integrated
Output Power at 10% THD+N, VDD=5V
--2.2W/CH (typical) into a 4Ω Load
Ω
Output Power at 1% THD+N, VDD=5V
--2W/CH (typical) into a 4Ω Load
Ω
--1.2W/CH (typical) into a 8Ω Load
Ω
Bridge-Tied Load (BTL)
Shutdown Control Available
Thermal protection
Surface-Mount Power Package
20-Pin TSSOP-P
General Description
The G1426 is a stereo audio power amplifier in 20pin
TSSOP package. It can deliver 2W continuous RMS
power into 4Ω load per channel in Bridge-Tied Load
(BTL) mode at 5V supply voltage under 1% THD. To
simplify the audio system design in the notebook ap-
plication, The G1426 supports the Bridge-Tied Load
(BTL) mode for driving the speakers. For the low cur-
rent consumption applications, the SHDN mode is
supported to disable the G1426 when it is idle. The
current consumption can be further reduced to below
2µA.
Applications
Stereo Power Amplifiers for Notebooks or
Desktop Computers
Multimedia Monitors
Stereo Power Amplifiers for Portable Audio
Systems
Ordering Information
ORDER
MARKING
NUMBER
G1426D5X
G1426F2X
G1426
G1426
TEMP.
RANGE
PACKAGE
-40°C to +85°C
TSSOP-20L
-40°C to +85°C TSSOP-20L (FD)
Note: X Specify the packing type
U: Tape & Reel
T: Tube
*
TSSOP-20L (FD): Thermal Pad
Pin Configuration
G1426
SHUTDOWN
GND/HS
+OUTA
VDD
-OUTA
-INA
GND/HS
+INA
NC
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
GND/HS
GND/HS
+OUTB
VDD
-OUTB
-INB
BYPASS
+INB
NC
NC
Thermal
Pad
GND/HS 10
Top View
20Pin TSSOP
Bottom View
Ver: 1.0
Dec 04, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
