GMT G1454L 2.0w stereo audio amplifier with shutdown mode Datasheet

G1454/G1454L
Global Mixed-mode Technology Inc.
2.0W Stereo Audio Amplifier with Shutdown Mode
Features
General Description
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The G1454/G1454L is a stereo audio power amplifier
in 16 pin TQFN3X3-16 with thermal pad package. It
can drive 1.45W continuous RMS power into 4Ω load
in Bridge-Tied Load (BTL) mode at 5V supply voltage.
Its THD is smaller than 1% under the above operation
condition. For the low current consumption applications, the SHUTDOWN mode is supported to disable
the G1454/G1454L when it is idle. The current consumption can be further reduced to below 1µA.
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Depop Circuitry Integrated
3V to 5.5V Operation
Output Power at 10% THD+N, VCC=5V
--2.1W (typical) into a 3Ω Load
Output Power at 1% THD+N, VCC=5V
--1.45W (typical) into a 4Ω Load
--1.15W (typical) into a 8Ω Load
Output Power at 10% THD+N, VCC=5V
--2W (typical) into a 4Ω Load
--1.47W (typical) into a 8Ω Load
Stereo Bridge-Tied Load (BTL)
Shutdown Control Available
TQFN3X3-16 Package Available
Giving the SHUTDOWN pin low level will drive the
G1454L entering the shutdown.
Giving the SHUTDOWN pin high level will drive the
G1454 entering the shutdown
Applications
Ordering Information
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PDAs
Portable Devices
„ Notebook
„
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Green)
G1454R41U
G1454LR41U
1454
1454L
-40°C to +85°C
-40°C to +85°C
TQFN3X3-16
TQFN3X3-16
Note: R4: TQFN3X3-16
1: Bonding Code
U: Tape & Reel
10
VSS
VSS
3
LVO2
4
RVO2
LIN-
SHUTDOWN
NC
14
13
NC
13
15
SHUTDOWN
14
LIN+
LIN15
16
LIN+
G1454 TQFN3X3-16
Thermal
Pad
12
RVO1
11
VCC
10
VSS
9
8
2
RIN+
VCC
7
VCC
RIN-
11
6
1
NC
LVO1
5
RVO1
BYPASS
12
9
8
4
RIN+
LVO2
7
3
RIN-
VSS
Thermal
Pad
6
2
NC
VCC
5
1
BYPASS
LVO1
16
Pin Configuration
RVO2
G1454L TQFN3X3-16
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Apr 29, 2009
1
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