參數(shù)資料
型號(hào)： G1421F
廠商： Global Mixed-mode Technology Inc.
英文描述： 2W Stereo Audio Amplifier with No Headphone Coupling Capacitor Function
中文描述： 2W立體聲音頻放大器耦合電容器沒(méi)有耳機(jī)功能
文件頁(yè)數(shù)： 18/24頁(yè)
文件大小： 442K
代理商： G1421F
Ver: 1.6
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G1421
Global Mixed-mode Technology Inc.
(AC Operation Characteristics, VDD = 3.3V, TA=+25°C, RL = 4Ω, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
THD = 1%, BTL, RL = 4Ω
---
0.8
---
THD = 1%, BTL, RL = 8Ω
---
0.5
---
THD = 10%, BTL, RL = 4Ω
---
1
---
THD = 10%, BTL, RL = 8Ω
---
0.6
---
W
THD = 1%, SE, RL = 4Ω
---
230
---
THD = 1%, SE, RL = 8Ω
---
140
---
THD = 10%, SE, RL = 4Ω
---
290
---
THD = 10%, SE, RL L = 8Ω
---
180
---
Output power (each channel) see Note
P(OUT)
THD = 0.5%, SE, RL = 32Ω
---
43
---
mW
PO = 1.6W, BTL, RL = 4Ω
---
270
---
PO = 1W, BTL, RL = 8Ω
---
100
---
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
---
80
---
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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