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参数资料
| 型号： | G1428F31U |
| 厂商： | Global Mixed-mode Technology Inc. |
| 元件分类： | 音频放大器 |
| 英文描述： | 2W Stereo Audio Amplifier |
| 中文描述： | 2W立体声音频放大器 |
| 文件页数： | 1/16页 |
| 文件大小： | 338K |
| 代理商： | G1428F31U |
Ver: 1.2
Mar 31, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G1428
Global Mixed-mode Technology Inc.
2W Stereo Audio Amplifier
2X\6X\12X\24X Selectable Gain Settings
Features
Internal Gain Control, Which Eliminates Exter-
nal Gain-Setting Resistors
Depop Circuitry Integrated
Output Power at 1% THD+N, VDD=5V
--2.0W/CH (typical) into a 4
Ω Load
--1.2W/CH (typical) into a 8
Ω Load
Bridge-Tied Load (BTL), Single-Ended (SE)
Stereo Input MUX
PC-Beep Input
Fully differential Input
Shutdown Control Available
Surface-Mount Power Package
24-Pin TSSOP-P
Applications
Stereo Power Amplifiers for Notebooks or
Desktop Computers
Multimedia Monitors
Stereo Power Amplifiers for Portable Audio
Systems
General Description
G1428 is a stereo audio power amplifier in 24pin
TSSOP thermal pad package. It can drive 2.0W 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, G1428 supports the Bridge-Tied
Load (BTL) mode for driving the speakers, Single-End
(SE) mode for driving the headphone. For the low
current consumption applications, the SHDN mode is
supported to disable G1428 when it is idle. The current
consumption can be reduced to 160A (typically).
Amplifier gain is internally configured and controlled by
two terminals (GAIN0, GAIN1). BTL gain settings of 2,
6, 12, 24V/V are provided, while SE gain is always
configured as 1V/V for headphone driving. G1428 also
supports two input paths, that means two different
amplitude AC signals can be applied and chosen by
setting HP/ LINE pin. It enhances the hardware de-
signing flexibility.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
TEMP.
RANGE
PACKAGE
G1428F31U
G1428F31Uf
G1428
-40°C to +85°C
TSSOP-24 (FD)
Note: U: Tape & Reel
(FD): Thermal Pad
Pin Configuration
14
Thermal
Pad
Bottom View
ROUT+
RHPIN
VDD
PVDD
HP/LINE
ROUT-
PC-BEEP
GND/HS
GAIN1
LOUT+
LLINEIN
LPHIN
PVDD
SHUTDOWN
LOUT-
GND/HS
TSSOP-24
13
24
23
22
21
20
19
18
17
16
15
5
6
7
8
9
10
11
12
1
4
3
2
14
GAIN0
RLINEIN
Top View
GND/HS
RIN
LIN
BYPASS
SE/BTL
14
Thermal
Pad
Bottom View
ROUT+
RHPIN
VDD
PVDD
HP/LINE
ROUT-
PC-BEEP
GND/HS
GAIN1
LOUT+
LLINEIN
LPHIN
PVDD
SHUTDOWN
LOUT-
GND/HS
TSSOP-24
13
24
23
22
21
20
19
18
17
16
15
5
6
7
8
9
10
11
12
1
4
3
2
14
GAIN0
RLINEIN
Top View
GND/HS
RIN
LIN
BYPASS
SE/BTL
相关PDF资料 |
PDF描述 |
|---|---|
| G1428F31UF | 2W Stereo Audio Amplifier |
| G1430Z4T | 2W Stereo Audio Amplifier |
| G1430 | 2W Stereo Audio Amplifier |
| G1431_06 | 2W Stereo Audio Amplifier |
| G1431F2U | 2W Stereo Audio Amplifier |
相关代理商/技术参数 |
参数描述 |
|---|---|
| G1428F31UF | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:2W Stereo Audio Amplifier |
| G1430 | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:2W Stereo Audio Amplifier |
| G1430Z4T | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:2W Stereo Audio Amplifier |
| G1431 | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:2W Stereo Audio Amplifier |
| G1431_06 | 制造商:GMT 制造商全称:Global Mixed-mode Technology Inc 功能描述:2W Stereo Audio Amplifier |
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