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G1420 Datasheet, PDF (2/20 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier
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Global Mixed-mode Technology Inc.
G1420
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
Reflow Temperature (soldering, 10sec)…………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 = 1500Ω, 3 positive pulses plus 3 negative pulses
Electrical 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
CONDITIONS
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
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TYP
7
3.5
8
4
5
8
4
2
MAX
13
8
16
10
50
16
10
5
UNIT
mA
mV
mA
µA
(AC Operation Characteristics, VDD = 5.0V, TA=+25°C, RL = 4Ω, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS
THD = 1%, BTL, RL = 4Ω
THD = 1%, BTL, RL = 8Ω
Output power (each channel) see Note
P(OUT)
THD = 10%, BTL, RL = 4Ω
THD = 10%, BTL, RL = 8Ω
THD = 1%, SE, RL = 4Ω
THD = 1%, SE, RL = 8Ω
THD = 10%, SE, RL = 4Ω
THD = 10%, SE, RL L = 8Ω
THD = 0.5%, SE, RL = 32Ω
Total harmonic distortion plus noise
THD+N
PO = 1.6W, BTL, RL = 4Ω
PO = 1W, BTL, RL = 8Ω
PO = 75mW, SE, RL = 32Ω
VI = 1V, RL = 10KΩ, G = 1
Maximum output power bandwidth
BOM
G = 1, THD = 1%
Phase margin
RL = 4Ω, Open Load
Power supply ripple rejection
PSRR f = 120Hz
Mute attenuation
Channel-to-channel output separation
f = 1kHz
Line/HP input separation
BTL attenuation in SE mode
Input impedance
ZI
Signal-to-noise ratio
PO = 500mW, BTL
Output noise voltage
Vn
Output noise voltage
Note :Output power is measured at the output terminals of the IC at 1kHz.
MIN
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TYP
1.8
1.12
2
1.4
500
320
650
400
90
500
150
20
10
20
60
75
85
82
80
85
2
90
55
MAX UNIT
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W
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--- mW
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m%
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--- kHz
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°
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dB
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dB
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dB
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dB
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dB
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MΩ
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dB
--- µV (rms)
Ver: 1.5
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
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