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G1420 데이터시트 PDF




Global Mixed-mode Technology에서 제조한 전자 부품 G1420은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 G1420 자료 제공

부품번호 G1420 기능
기능 2W Stereo Audio Amplifier
제조업체 Global Mixed-mode Technology
로고 Global Mixed-mode Technology 로고


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G1420 데이터시트, 핀배열, 회로
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




G1420 pdf, 반도체, 판매, 대치품
Global Mixed-mode Technology Inc.
G1420
Typical Characteristics
Table of Graphs
THD +N Total Harmonic Distortion Plus
Noise
Output Noise Voltage
Vn
Supply Ripple Rejection Ratio
Crosstalk
Closed Loop Response
IDD Supply Current
PO Output Power
PD Power Dissipation
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vs Output Power
vs Frequency
vs Frequency
vs Frequency
vs Frequency
vs Frequency
vs Supply Voltage
vs Load Resistance
vs Load Resistance
vs Output Power
FIGURE
1,3,6,9,10,13,16,19,22,25,28,31
2,4,5,7,8,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33
34,35
36,37
38,39,40,41
42,43,44,45
46
47,48
49,50
51,52,53,54
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
20kHz
2
1
0.5
%
0.2
1kHz
0.1
20 Hz
0 .05
0 .02
VDD=5V
RL=3Ω
BTL
0 .01
3m 5m
10 m
20m
5 0m
1 00m
W
20 0m
500 m
1
23
Figure 1
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5
2
1
0.5
%
0.2
0.1
0 .05
0 .02
0 .01
20
Po=1.8W
Po=1.5W
VDD=5V
RL=3Ω
BTL
Av=-2V/V
50 10 0 2 00
5 00
Hz
1k
2k
Figure 2
5 k 10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
20kHz
2
1
0.5
%
0.2
1kHz
0.1
0.05 20 Hz
0 .02
VDD=5V
RL=4Ω
BTL
0 .01
3m 5m
10 m
20m
5 0m
1 00m
W
20 0m
500 m
1
23
Figure 3
10
5
2
1
0.5
%
0.2
0.1
0 .05
0 .02
0 .01
20
Total Harmonic Distortion Plus
Noise vs Output Frequency
Av=-4V/V
Av=-2V/V
Av=-1V/V
VDD=5V
RL=4Ω
BTL
Po=1.5W
50 10 0 2 00
5 00
Hz
1k
2k
Figure 4
5 k 10 k 20k
Ver: 1.5
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
4

4페이지










G1420 전자부품, 판매, 대치품
Global Mixed-mode Technology Inc.
G1420
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 VDD=5V
RL=4Ω
2 SE
1 Po=0.5W
Av=-4V/V
0.5
%
0.2
Av=-2V/V
0.1
0 .05
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0 .02
Av=-1V/V
0 .01
20
50 10 0 2 00
5 00
Hz
1k
2k
5 k 10 k 20k
Figure 17
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 VDD=5V
RL=4Ω
2 SE
1 Av=-2V/V
Po=0.4W
0.5
%
0.2
0.1
Po=0.1W
0 .05
Po=0.25W
0 .02
0 .01
20
50 10 0 2 00
5 00
Hz
1k
2k
Figure 18
5 k 10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Power
10
5 VDD=5V
RL=8Ω
2 SE
1
0.5
%
0.2
20kHz
0.1
0 .05
0.02 100Hz
1kHz
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
Figure 19
500 m 1
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Frequency
VDD=5V
RL=8Ω
SE
Po=0.25W
Av=-2V/V
Av=-4V/V
0 .02
0 .01
20
Av=-1V/V
50 10 0 2 00
5 00
Hz
1k
2k
Figure 20
5 k 10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 VDD=5V
RL=8Ω
2 SE
1 Av=-2
0.5
%
0.2
Po=0.05W
0.1
0.05 Po=0.1W
0 .02
Po=0.25W
0 .01
20
50 10 0 2 00
5 00
Hz
1k
2k
Figure 21
5 k 10 k 20k
Ver: 1.5
Aug 04, 2005
Total Harmonic Distortion Plus
Noise vs Output Power
10
5 VDD=5V
2 RL=32Ω
1 SE
0.5
20kHz
0.2
% 0.1
0 .05
20Hz
0 .02
0 .01
0.0 05
0.0 02
0.0 01
1m
2m
1kHz
5m 10 m 20 m
W
Figure 22
50m 10 0m 2 00m
TEL: 886-3-5788833
http://www.gmt.com.tw
7

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