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参数资料
| 型号： | G1422 |
| 厂商： | Global Mixed-mode Technology Inc. |
| 元件分类： | 音频放大器 |
| 英文描述： | 2W Stereo Audio Amplifier |
| 中文描述： | 2W立体声音频放大器 |
| 文件页数： | 8/15页 |
| 文件大小： | 304K |
| 代理商： | G1422 |
Ver: 1.2
Jun 29, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G1422
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, VDD = 5.0V, TA=+25°C, unless otherwise noted
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
Stereo BTL
---
8.5
15
Supply Current
IDD
VDD = 5V
STEREO SE
---
4
8
mA
DC Differential Output Voltage
VO(DIFF)
VDD = 5V,Gain = 2
---
5
50
mV
IDD in Shutdown
ISD
VDD = 5V
---
0.1
2
A
Headphone High Input Voltage
VIH
4
---
V
Headphone Low Input Voltage
VIL
---
0.8
V
(AC Operation Characteristics, VDD = 5.0V, TA=+25°C, RL = 4Ω, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
THD = 1%, BTL, RL = 4Ω
---
2
---
THD = 1%, BTL, RL = 8Ω
---
1.25
---
THD = 10%, BTL, RL = 4Ω
---
2.5
---
THD = 10%, BTL, RL = 8Ω
---
1.6
---
W
THD = 1%, SE, RL = 4Ω
---
550
---
THD = 1%, SE, RL = 8Ω
---
340
---
THD = 10%, SE, RL = 4Ω
---
700
---
THD = 10%, SE, RL L = 8Ω
---
440
---
Output power (each channel) see Note
P(OUT)
THD = 0.5%, SE, RL = 32Ω
---
92
---
mW
PO = 1.6W, BTL, RL = 4Ω
---
300
---
PO = 1W, BTL, RL = 8Ω
---
100
---
PO = 75mW, SE, RL = 32Ω
---
15
---
Total harmonic distortion plus noise
THD+N
VI = 1V, RL = 10KΩ, G = 1, SE
---
2.5
---
m%
Maximum output power bandwidth
BOM
G = 1, THD = 1%
---
20
---
kHz
Phase margin
RL = 4Ω, Open Load
---
65
---
°
Power supply ripple rejection
PSRR
f = 120Hz
---
75
---
dB
Channel-to-channel output separation
f = 1kHz
---
80
---
dB
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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