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Global Mixed-mode Technology Inc.
2W Stereo Audio Amplifier
G1430
Features
„Depop Circuitry Integrated
„Output Power at 1% THD+N, VDD=5V
--1.8W/CH (typical) into a 4Load
--1.2W/CH (typical) into a 8Load
„Bridge-Tied Load (BTL), Single-Ended (SE)
„Shutdown Control Available
„ Dual Inline Package 16 pin (DIP16)
www.DataSheetA4Up.cpomlications
„Stereo Power Amplifiers for Notebooks or
Desktop Computers
„Multimedia Monitors
„Stereo Power Amplifiers for Portable Audio
Systems
General Description
G1430 is a stereo audio power amplifier in 16pin Dual
Inline Package. It can drive 1.8W continuous RMS
power into 4load per channel in Bridge-Tied Load
(BTL) mode at 5V supply voltage. Its THD is smaller
than 1% under the above operation condition. To sim-
plify the audio system design in the notebook applica-
tion, G1430 supports the Bridge-Tied Load (BTL)
mode for driving the speakers, Single-End (SE) mode
for driving the headphone. For the low current con-
sumption applications, the SHDN mode is supported
to disable G1430 when it is idle. The current consump-
tion can be further reduced to below 5µA.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
G1430Z4T G1430 -40°C to +85°C
PACKAGE
DIP-16L
Pin Configuration
LVDD
SHUTDOWN
LOUT-
GND/HS
GND/HS
SE/BTL
ROUT-
RVDD
1
2
3
4
5
6
7
8
G1430
DIP-16L
16 LBYPASS
15 LLINEIN
14 LOUT+
13 GND/HS
12 GND/HS
11 ROUT+
10 RLINEIN
9 RBYPASS
Ver: 1.0
Jan 15, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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Global Mixed-mode Technology Inc.
G1430
Absolute Maximum Ratings
Supply Voltage, VCC…………………..…...…….……...6V
Operating Ambient Temperature Range
TA…….…………………………….……….-40°C to +85°C
Maximum Junction Temperature, TJ…..……….….150°C
Storage Temperature Range, TSTG….….-65°C to+150°C
Soldering Temperature, 10seconds, TS……….……260°C
Power Dissipation (1)
TA 25°C…………………………………………....2W
Electrostatic Discharge, VESD
Human body mode..…………………….-3000 to 3000(2)
Note:
(1) : Both dual channels could provide 1.8W peak output power at 4 ohm speaker, but continuous output power is limited by package
(DIP-16) power dissipation : 2W at Ta=25 degree °C
(2) : Human body model : C = 100pF, R = 1500, 3 positive pulses plus 3 negative pulses
www.DataSheetE4Ul.ecocmtrical Characteristics
DC Electrical Characteristics, TA=+25°C
PARAMETER
Supply Current
DC Differential Output Voltage
Supply Current in Mute Mode
IDD in Shutdown
SYMBOL
IDD
VO(DIFF)
IDD(MUTE)
ISD
CONDITION
VDD =3.3V
Stereo BTL
STEREO SE
VDD = 5V
Stereo BTL
STEREO SE
VDD = 5V,Gain = 2
VDD = 5V
Stereo BTL
STEREO SE
VDD = 5V
MIN
---
---
---
---
---
---
---
TYP
7
3.5
8
4
5
8
4
2
MAX
10
6
13
6.5
50
13
6.5
5
UNIT
mA
mV
mA
µA
(AC Operation Characteristics, VDD = 5V, TA=+25°C, RL = 4, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
THD = 1%, BTL, RL = 4
THD = 1%, BTL, RL = 8
THD = 10%, BTL, RL = 4
Output power (each channel) see Note
P(OUT)
THD = 10%, BTL, RL = 8
THD = 1%, SE, RL = 4
THD = 1%, SE, RL = 8
THD = 10%, SE, RL = 4
Total harmonic distortion plus noise
Maximum output power bandwidth
Phase margin
THD+N
BOM
THD = 10%, SE, RL L = 8
THD = 0.5%, SE, RL = 32
PO = 1.6W, BTL, RL = 4
PO = 1W, BTL, RL = 8
PO = 75mW, SE, RL = 32
VI = 1V, RL = 10K, G = 1
G = 1, THD = 1%
RL = 4, Open Load
Power supply ripple rejection
PSRR f = 120Hz
Channel-to-channel output separation
f = 1kHz
BTL attenuation in SE mode
Input impedance
ZI
Signal-to-noise ratio
Output noise voltage
PO = 500mW, BTL
Vn Output noise voltage
Note :Output power is measured at the output terminals of the IC at 1kHz.
MIN
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
TYP
1.8
1.12
2
1.4
500
320
650
400
90
500
150
20
10
20
60
75
82
85
2
90
55
MAX UNIT
---
---
---
W
---
---
---
--- mW
---
---
---
---
---
m%
---
--- kHz
--- °
--- dB
--- dB
--- dB
--- M
--- dB
--- µV (rms)
Ver: 1.0
Jan 15, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
G1430
(AC Operation Characteristics, VDD = 3.3V, TA=+25°C, RL = 4, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
THD = 1%, BTL, RL = 4
THD = 1%, BTL, RL = 8
THD = 10%, BTL, RL = 4
THD = 10%, BTL, RL = 8
Output power (each channel) see Note
P(OUT)
THD = 1%, SE, RL = 4
THD = 1%, SE, RL = 8
THD = 10%, SE, RL = 4
THD = 10%, SE, RL L = 8
THD = 0.5%, SE, RL = 32
www.DataSheet4U.com
Total harmonic distortion plus noise
THD+N
PO = 1.6W, BTL, RL = 4
PO = 1W, BTL, RL = 8
PO = 75mW, SE, RL = 32
VI = 1V, RL = 10K, G = 1
Maximum output power bandwidth
BOM G = 1, THD 1%
Phase margin
RL = 4, Open Load
Power supply ripple rejection
PSRR f = 120Hz
Channel-to-channel output separation
f = 1kHz
BTL attenuation in SE mode
Input impedance
ZI
Signal-to-noise ratio
Output noise voltage
PO = 500mW, BTL
Vn Output noise voltage
Note :Output power is measured at the output terminals of the IC at 1kHz.
MIN
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
TYP
0.8
0.5
1
0.6
230
140
290
180
43
270
100
20
10
20
60
75
80
85
2
90
55
MAX UNIT
---
--- W
---
---
---
---
--- mW
---
---
---
--- m%
---
---
--- kHz
--- °
--- dB
--- dB
--- dB
--- M
--- dB
--- µV (rms)
Ver: 1.0
Jan 15, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
3

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Global Mixed-mode Technology Inc.
Pin Description
G1430
PIN NAME
1 LVDD
2 SHUTDOWN
3
4,5,12,13
6
7
8
9
www.DataSheet4U.c1o0m
11
14
15
16
LOUT-
GND/HS
SE/ BTL
ROUT-
RVDD
RBYPASS
RLINE IN
ROUT+
LOUT+
LLINE IN
LBYPASS
I/O FUNCTION
I Supply voltage input for left channel and for primary bias circuits.
I Shutdown mode control signal input, places entire IC in shutdown mode when held high,
IDD = 5µA.
O Left channel - output in BTL mode, high impedance state in SE mode.
Ground connection for circuitry, directly connected to thermal pad.
I Mode control signal input, hold low for BTL mode, hold high for SE mode.
O Right channel - output in BTL mode, high impedance state in SE mode.
I Supply voltage input for right channel.
Connect to voltage divider for right channel internal mid-supply bias.
I Right channel line input, selected when HP/pin is held low.
O Right channel + output in BTL mode, + output in SE mode.
O Left channel + output in BTL mode, + output in SE mode.
I Left channel line input, selected when HP/ pin is held low.
Connect to voltage divider for left channel internal mid-supply bias.
Ver: 1.0
Jan 15, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
4

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Global Mixed-mode Technology Inc.
G1430
Typical Characteristics
Table of Graphs
vs Frequency
THD +N Total harmonic distortion plus noise
vs Output power
Vn Output noise voltage
Supply ripple rejection ratio
vs Frequency
vs Frequency
Crosstalk
vs Frequency
Closed loop response
vs Frequency
www.DataSheet4IDUD.cSoumpply current
PO Output power
vs supply voltage
vs supply voltage
vs Load resistance
PD Power dissipation
vs Output power
FIGURE
2,4,5,7,8,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33
1,3,6,9,10,13,16,19,22,25,28,31
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
TOTAL HARMONIC DISTORTION PLUS NOISE
vs OUTPUT FREQUENCY
10
5
2
1
0.5
%
0.2
0.1
0.05
1kHz
20 Hz
0.02
0.01
3m 5m 10m 20m
20kHz
VDD=5V
RL=3Ω
BTL
50m 100m 200m
W
Figure 1
500m
1
23
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
50 100 200
500 1k
Hz
2k
Figure 2
5k 10k 20k
Ver: 1.0
Jan 15, 2004
TEL: 886-3-5788833
5 http://www.gmt.com.tw