G1420 Datasheet PDF | Global Mixed-mode Technology





(PDF) G1420 Datasheet PDF

Part Number G1420
Description 2W Stereo Audio Amplifier
Manufacture Global Mixed-mode Technology
Total Page 20 Pages
PDF Download Download G1420 Datasheet PDF

Features: Global Mixed-mode Technology Inc. G1420 2W Stereo Audio Amplifier Features „ „ General Description G1420 is a ste reo audio power amplifier in 24pin TSSO P thermal pad package. It can drive 1.8 W continuous RMS power into 4Ω load pe r channel in Bridge-Tied Load (BTL) mod e at 5V supply voltage. Its THD is smal ler than 1% under the above operation c ondition. To simplify the audio system design in the notebook application, G14 20 supports the Bridge-Tied Load (BTL) mode for driving the speakers, Single-E nd (SE) mode for driving the headphone. G1420 can mute the output when Mute-In is activated. For the low current cons umption applications, the SHDN mode is supported to disable G1420 when it is i dle. The current consumption can be fur ther reduced to below 5µA. G1420 also supports two input paths, that means tw o different gain loops can be set in th e same PCB and choosing either one by s etting HP/ LINE pin. It enhances the ha rdware designing flexibility. „ „ „ „ www.DataSheet4U.com Depop .

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G1420 datasheet
Global Mixed-mode Technology Inc.
2W Stereo Audio Amplifier
G1420
Features
„ Depop Circuitry Integrated
„ Output Power at 1% THD+N, VDD=5V
--1.8W/CH (typical) into a 4Ω Load
--1.2W/CH (typical) into a 8Ω Load
„ Bridge-Tied Load (BTL), Single-Ended (SE)
„ Stereo Input MUX
„ Mute and Shutdown Control Available
„ Surface-Mount Power Package
24-Pin TSSOP-P
www.DataSheet4U.com
Applications
„ Stereo Power Amplifiers for Notebooks or
Desktop Computers
„ Multimedia Monitors
„ Stereo Power Amplifiers for Portable Audio
Systems
General Description
G1420 is a stereo audio power amplifier in 24pin
TSSOP thermal pad package. It can drive 1.8W con-
tinuous 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, G1420 supports the Bridge-Tied
Load (BTL) mode for driving the speakers, Single-End
(SE) mode for driving the headphone. G1420 can
mute the output when Mute-In is activated. For the low
current consumption applications, the SHDN mode is
supported to disable G1420 when it is idle. The current
consumption can be further reduced to below 5µA.
G1420 also supports two input paths, that means two
different gain loops can be set in the same PCB and
choosing either one by setting HP/ LINE pin. It en-
hances the hardware designing flexibility.
Ordering Information
ORDER
NUMBER
G1420F31U
Note: F3: TSSOP-24 (FD)
U: Tape & Reel
ORDER NUMBER
(Pb free)
G1420F31Uf
Pin Configuration
TEMP.
RANGE
-40°C to +85°C
PACKAGE
TSSOP-24 (FD)
GND/HS 1
TJ 2
LOUT+ 3
LLINEIN 4
LHPIN 5
LBYPASS 6
LVDD 7
SHUTDOWN 8
MUTE OUT 9
LOUT- 10
MUTE IN 11
GND/HS 12
G1420
24 GND/HS
23 NC
22 ROUT+
21 RLINEIN
20 RHPIN
19 RBYPASS
18 RVDD
17 NC
16 HP/LINE
15 ROUT-
14 SE/BTL
13 GND/HS
Thermal
Pad
Top View
TSSOP-24 (FD)
Bottom View
Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
14
Ver: 1.5
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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