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Global Mixed-mode Technology
Global Mixed-mode Technology

G1426 Datasheet Preview

G1426 Datasheet

2.2W Stereo Audio Amplifier

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G1426 pdf
Global Mixed-mode Technology Inc.
2.2W Stereo Audio Amplifier
G1426
Features
„Depop Circuitry Integrated
„Output Power at 10% THD+N, VDD=5V
--2.2W/CH (typical) into a 4Load
„Output Power at 1% THD+N, VDD=5V
--2W/CH (typical) into a 4Load
--1.2W/CH (typical) into a 8Load
„Bridge-Tied Load (BTL)
„Shutdown Control Available
„Thermal protection
www.DataSheet„4U.cSoumrface-Mount Power Package
20-Pin TSSOP-P
General Description
The G1426 is a stereo audio power amplifier in 20pin
TSSOP package. It can deliver 2W continuous RMS
power into 4load per channel in Bridge-Tied Load
(BTL) mode at 5V supply voltage under 1% THD. To
simplify the audio system design in the notebook ap-
plication, The G1426 supports the Bridge-Tied Load
(BTL) mode for driving the speakers. For the low cur-
rent consumption applications, the SHDN mode is
supported to disable the G1426 when it is idle. The
current consumption can be further reduced to below
2µA.
Applications
„Stereo Power Amplifiers for Notebooks or
Desktop Computers
„Multimedia Monitors
„Stereo Power Amplifiers for Portable Audio
Systems
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
G1426D5X G1426 -40°C to +85°C TSSOP-20L
G1426F2X G1426 -40°C to +85°C TSSOP-20L (FD)
Note: X Specify the packing type
U: Tape & Reel
T: Tube
* TSSOP-20L (FD): Thermal Pad
Pin Configuration
SHUTDOWN 1
GND/HS 2
+OUTA 3
VDD 4
-OUTA 5
-INA 6
GND/HS 7
+INA 8
NC 9
GND/HS 10
G1426
Top View
20Pin TSSOP
20 GND/HS
19 GND/HS
18 +OUTB
17 VDD
16 -OUTB
15 -INB
14 BYPASS
13 +INB
12 NC
11 NC
Ver: 1.0
Dec 04, 2003
1
Thermal
Pad
Bottom View
TEL: 886-3-5788833
http://www.gmt.com.tw



Global Mixed-mode Technology
Global Mixed-mode Technology

G1426 Datasheet Preview

G1426 Datasheet

2.2W Stereo Audio Amplifier

No Preview Available !

G1426 pdf
Global Mixed-mode Technology Inc.
G1426
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………………………………………….2.7W
TA 70°C………………………………………….1.7W
TA 85°C………………….………………………1.4W
Electrostatic Discharge, VESD
Human body mode..…………………….-3000 to 3000(2)
Note:
(1) : Recommended PCB Layout
(2) : Human body model : C = 100pF, R = 1500, 3 positive pulses plus 3 negative pulses
www.DataSheetE4Ul.ecocmtrical Characteristics
DC Electrical Characteristics, VDD = 5.0V, TA=+25°C, unless otherwise noted
PARAMETER
Supply Current
DC Differential Output Voltage
IDD in Shutdown
SYMBOL
IDD
VO(DIFF)
ISD
CONDITION
VDD = 5V
VDD = 5V,Gain = 2
VDD = 5V
MIN
-
-
-
TYP
8.5
5
0.1
MAX
15
50
2
UNIT
mA
mV
µA
(AC Operation Characteristics, VDD = 5.0V, TA=+25°C, RL = 4, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
Output power (each channel) see Note
Total harmonic distortion plus noise
P(OUT)
THD+N
THD = 1%, BTL, RL = 4
THD = 1%, BTL, RL = 8
THD = 10%, BTL, RL = 4
THD = 10%, BTL, RL = 8
PO = 1.6W, BTL, RL = 4
PO = 1W, BTL, RL = 8
VI = 1V, RL = 10K, G = 1
Maximum output power bandwidth
BOM G = 10, THD = 1%
Phase margin
RL = 4, Open Load
Power supply ripple rejection
PSRR f = 120Hz
Channel-to-channel output separation
f = 1kHz
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
2
1.25
2.5
1.6
300
100
10
20
65
75
80
2
90
55
MAX UNIT
-
-
-
W
-
-
- m%
-
- kHz
-°
- dB
- dB
- M
- dB
- µV (rms)
Ver: 1.0
Dec 04, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
2


Part Number G1426
Description 2.2W Stereo Audio Amplifier
Maker Global Mixed-mode Technology
Total Page 13 Pages
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