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G1422

Global Mixed-mode Technology
Part Number G1422
Manufacturer Global Mixed-mode Technology
Description 2W Stereo Audio Amplifier
Published Sep 25, 2008
Detailed Description Global Mixed-mode Technology Inc. G1422 2W Stereo Audio Amplifier Features „ „ General Description The G1422 is a ste...
Datasheet PDF File G1422 PDF File

G1422
G1422

Overview
Global Mixed-mode Technology Inc.
G1422 2W Stereo Audio Amplifier Features „ „ General Description The G1422 is a stereo audio power amplifier in 20pin TSSOP thermal pad package.
It can drive 2W 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.
To simplify the audio system design in the notebook application, the G1422 supports the BridgeTied 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 the G1422 when it is idle.
The current consumption can be further reduced to below 2µA.
„ „ „ „ www.
DataSheet4U.
com Depop Circuitry Integrated Output Power at 1% THD+N, VDD=5V --2W/CH (typical) into a 4Ω Load --1.
2W/CH (typical) into a 8Ω 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 Ordering Information ORDER NUMBER G1422F2U Note:F2: TSSOP-20 (FD) U: Tape & Reel ORDER NUMBER (Pb free) G1422F2Uf MARKING G1422 TEMP.
RANGE -40°C to +85°C PACKAGE TSSOP-20 (FD) Pin Configuration G1422 SHUTDOWN GND/HS +OUTA VDD -OUTA -INA GND/HS +INA GND/HS 1 2 3 4 5 6 7 8 9 19 18 17 16 15 14 13 12 20 HP-IN GND/HS +OUTB VDD -OUTB -INB BYPASS +INB GND/HS Thermal Pad GND/HS 10 11 GND/HS Top View TSSOP-20 (FD) Bottom View Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
Ver: 1.
2 Jun 29, 2005 TEL: 886-3-5788833 http://www.
gmt.
com.
tw 1 Global Mixed-mode Technology Inc.
Absolute Maximum Ratings Supply Voltage, VCC………………….
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6V Operating Ambient Temperature Range TA…….
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-40°C to +85°C Maximum Junction Temperature, TJ….
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150°C Storage Temperature Range...


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