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參數資料
| 型號： | G1422 |
| 廠商： | Global Mixed-mode Technology Inc. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 2W Stereo Audio Amplifier |
| 中文描述： | 2W立體聲音頻放大器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 304K |
| 代理商： | G1422 |
Ver: 1.2
Jun 29, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G1422
Global Mixed-mode Technology Inc.
2W Stereo Audio Amplifier
Features
Depop Circuitry Integrated
Output Power at 1% THD+N, VDD=5V
--2W/CH (typical) into a 4
Ω Load
--1.2W/CH (typical) into a 8
Ω Load
Bridge-Tied Load (BTL), Single-Ended (SE)
Shutdown Control Available
Thermal protection
Surface-Mount Power Package
20-Pin TSSOP-P
Applications
Stereo Power Amplifiers for Notebooks or
Desktop Computers
Multimedia Monitors
Stereo Power Amplifiers for Portable Audio
Systems
General Description
The G1422 is a stereo audio power amplifier in 20pin
TSSOP thermal pad package. It can drive 2W con-
tinuous 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. To simplify the audio system design in the
notebook application, the G1422 supports the Bridge-
Tied Load (BTL) mode for driving the speakers, Sin-
gle-End (SE) mode for driving the headphone. For the
low current consumption applications, the SHDN mode
is supported to disable the G1422 when it is idle. The
current consumption can be further reduced to below
2A.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
TEMP.
RANGE
PACKAGE
G1422F2U
G1422F2Uf
G1422
-40°C to +85°C
TSSOP-20 (FD)
Note:F2: TSSOP-20 (FD)
U: Tape & Reel
Pin Configuration
HP-IN
GND/HS
+OUTB
VDD
-OUTB
-INB
BYPASS
SHUTDOWN
+OUTA
VDD
-OUTA
-INA
GND/HS
+INA
GND/HS
G1422
TSSOP-20 (FD)
13
20
19
18
17
16
15
5
6
7
8
9
10
1
4
3
2
14
GND/HS
Top View
+INB
11
12 GND/HS
GND/HS
Thermal
Pad
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
HP-IN
GND/HS
+OUTB
VDD
-OUTB
-INB
BYPASS
SHUTDOWN
+OUTA
VDD
-OUTA
-INA
GND/HS
+INA
GND/HS
G1422
TSSOP-20 (FD)
13
20
19
18
17
16
15
5
6
7
8
9
10
1
4
3
2
14
GND/HS
Top View
+INB
11
12 GND/HS
GND/HS
Thermal
Pad
Bottom View
HP-IN
GND/HS
+OUTB
VDD
-OUTB
-INB
BYPASS
SHUTDOWN
+OUTA
VDD
-OUTA
-INA
GND/HS
+INA
GND/HS
G1422
TSSOP-20 (FD)
13
20
19
18
17
16
15
5
6
7
8
9
10
1
4
3
2
14
GND/HS
Top View
+INB
11
12 GND/HS
GND/HS
Thermal
Pad
Bottom View
Thermal
Pad
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
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