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參數(shù)資料
| 型號(hào)： | G1420 |
| 廠商： | Global Mixed-mode Technology Inc. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 2W Stereo Audio Amplifier |
| 中文描述： | 2W立體聲音頻放大器 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 386K |
| 代理商： | G1420 |
Ver: 1.5
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G1420
Global Mixed-mode Technology Inc.
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
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Stereo BTL
---
7
13
VDD =3.3V
Stereo SE
---
3.5
8
Stereo BTL
---
8
16
Supply Current
IDD
VDD = 5V
Stereo SE
---
4
10
mA
DC Differential Output Voltage
VO(DIFF)
VDD = 5V,Gain = 2
---
5
50
mV
Stereo BTL
8
16
Supply Current in Mute Mode
IDD(MUTE)
VDD = 5V
Stereo SE
---
4
10
mA
IDD in Shutdown
ISD
VDD = 5V
---
2
5
A
(AC Operation Characteristics, VDD = 5.0V, TA=+25°C, RL = 4Ω, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
THD = 1%, BTL, RL = 4Ω
---
1.8
---
THD = 1%, BTL, RL = 8Ω
---
1.12
---
THD = 10%, BTL, RL = 4Ω
---
2
---
THD = 10%, BTL, RL = 8Ω
---
1.4
---
W
THD = 1%, SE, RL = 4Ω
---
500
---
THD = 1%, SE, RL = 8Ω
---
320
---
THD = 10%, SE, RL = 4Ω
---
650
---
THD = 10%, SE, RL L = 8Ω
---
400
---
Output power (each channel) see Note
P(OUT)
THD = 0.5%, SE, RL = 32Ω
---
90
---
mW
PO = 1.6W, BTL, RL = 4Ω
---
500
---
PO = 1W, BTL, RL = 8Ω
---
150
---
PO = 75mW, SE, RL = 32Ω
---
20
---
Total harmonic distortion plus noise
THD+N
VI = 1V, RL = 10KΩ, G = 1
---
10
---
m%
Maximum output power bandwidth
BOM
G = 1, THD = 1%
---
20
---
kHz
Phase margin
RL = 4Ω, Open Load
---
60
---
°
Power supply ripple rejection
PSRR
f = 120Hz
---
75
---
dB
Mute attenuation
---
85
---
dB
Channel-to-channel output separation
f = 1kHz
---
82
---
dB
Line/HP input separation
---
80
---
dB
BTL attenuation in SE mode
---
85
---
dB
Input impedance
ZI
---
2
---
M
Ω
Signal-to-noise ratio
PO = 500mW, BTL
---
90
---
dB
Output noise voltage
Vn
Output noise voltage
---
55
---
V (rms)
Note :Output power is measured at the output terminals of the IC at 1kHz.
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