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参数资料
| 型号： | G1428F31UF |
| 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： | 9/16页 |
| 文件大小： | 338K |
| 代理商： | G1428F31UF |
Ver: 1.2
Mar 31, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G1428
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
Electrostatic Discharge, VESD
Human body mode..………………………………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
CONDITION
MIN
TYP
MAX
UNIT
Supply voltage VDD
VDD
4.5
5
5.5
V
High-Level Input voltage, VIH
VIH
SE/ BTL
, HP/LINE , SHUTDOWN , GAIN0 ,
GAIN1
3.5
---
V
Low-Level Input voltage, VIL
VIL
SE/ BTL
, HP/LINE , SHUTDOWN , GAIN0,
GAIN1
---
1
V
DC Differential Output Voltage
VO(DIFF)
VDD = 5V,Gain = 2
---
5
50
mV
Stereo BTL
7.5
13
Supply Current in Mute Mode
IDD
VDD = 5V
Stereo SE
---
4
7
mA
IDD in Shutdown
ISD
VDD = 5V
---
160
300
A
(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 G=-2V/V
---
2
---
THD = 1%, BTL, RL = 8Ω G=-2V/V
---
1.25
---
THD = 10%, BTL, RL = 4Ω G=-2V/V
---
2.5
---
THD = 10%, BTL, RL = 8Ω G=-2V/V
---
1.6
---
W
Output power (each channel) see Note
P(OUT)
THD = 0.1%, SE, RL = 32Ω
---
85
---
mW
PO = 1.6W, BTL, RL = 4Ω G=-2V/V
---
100
---
PO = 1W, BTL, RL = 8Ω G=-2V/V
---
60
---
PO = 75mW, SE, RL = 32Ω
---
80
---
Total harmonic distortion plus noise
THD+N
VI = 1V, RL = 10KΩ, SE
---
30
---
m%
Maximum output power bandwidth
BOM
THD = 5%
---
>15
---
kHz
Power supply ripple rejection
PSRR
F=1kHz, BTL mode G=-2V/V
CBYP=1F
---
68
---
dB
Channel-to-channel output separation
f = 1kHz
---
80
---
dB
Line/HP input separation
---
80
---
dB
BTL attenuation in SE mode
---
85
---
dB
Input impedance
ZI
See Table 2
M
Ω
Signal-to-noise ratio
PO = 500mW, BTL, G=-2V/V
---
90
---
dB
Output noise voltage
Vn
BTL, G=-2V/V, A Weighted filter
---
45
---
V (rms)
Note :Output power is measured at the output terminals of the IC at 1kHz.
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