參數(shù)資料
型號: LM4883
廠商: National Semiconductor Corporation
元件分類: 音頻放大器
英文描述: Dual 2.1W Audio Amplifier Plus Stereo Headphone
中文描述: 雙2.1W音頻功率放大器加立體聲耳機
文件頁數(shù): 4/23頁
文件大?。?/td> 1244K
代理商: LM4883
Electrical Characteristics for Bridged-Mode Operation (5V)
(Notes 3, 7,
13) (Continued)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
(Note 8)
85
Limit
(Note 9)
PSRR
Power Supply Rejection Ratio
Input Floating, 217Hz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input Floating, 1kHz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input grounded, 217Hz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input grounded, 1kHz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
f = 1kHz, C
B
= 1.0μF
1kHz, A-weighted
dB
80
dB
65
dB
70
dB
X
TALK
V
NO
Channel Separation
Output Noise Voltage
82
21
dB
μV
Electrical Characteristics for Single-Ended Operation (5V)
(Notes 3, 7, 13)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
(Note 8)
90
325
400
0.015
70
Limit
(Note 9)
75
P
O
Output Power
THD+N = 0.5%, f = 1 kHz, R
L
= 32
THD+N = 1%, f = 1 kHz, R
L
= 8
THD+N = 10%, f = 1 kHz, R
L
= 8
P
O
= 20mW, 1kHz, R
L
= 32
Input Floating, 217Hz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input Floating, 1kHz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input grounded, 217Hz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
Input grounded, 1kHz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 8
f = 1kHz, C
B
= 1.0μF
1kHz, A-weighted
mW (min)
mW
mW
%
dB
THD+N
Total Harmonic Distortion+Noise
PSRR
Power Supply Rejection Ratio
72
dB
65
dB
70
dB
X
TALK
V
NO
Channel Separation
Output Noise Voltage
80
11
dB
μV
L
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