參數(shù)資料
型號: LM4883SQ/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24
封裝: LLP-24
文件頁數(shù): 18/23頁
文件大小: 1244K
代理商: LM4883SQ/NOPB
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 TA = 25C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
Limit
PSRR
Power Supply Rejection Ratio
Input Floating, 217Hz
V
ripple = 200mVp-p
C
B = 1F, RL =8
85
dB
Input Floating, 1kHz
V
ripple = 200mVp-p
C
B = 1F, RL =8
80
dB
Input grounded, 217Hz
V
ripple = 200mVp-p
C
B = 1F, RL =8
65
dB
Input grounded, 1kHz
V
ripple = 200mVp-p
C
B = 1F, RL =8
70
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0F
82
dB
V
NO
Output Noise Voltage
1kHz, A-weighted
21
V
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 TA = 25C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
Limit
P
O
Output Power
THD+N = 0.5%,f=1 kHz, R
L =32
90
75
mW (min)
THD+N = 1%,f=1 kHz, R
L =8
325
mW
THD+N = 10%,f=1 kHz, R
L =8
400
mW
THD+N
Total Harmonic Distortion+Noise
P
O = 20mW, 1kHz, RL =32
0.015
%
PSRR
Power Supply Rejection Ratio
Input Floating, 217Hz
V
ripple = 200mVp-p
C
B = 1F, RL =8
70
dB
Input Floating, 1kHz
V
ripple = 200mVp-p
C
B = 1F, RL =8
72
dB
Input grounded, 217Hz
V
ripple = 200mVp-p
C
B = 1F, RL =8
65
dB
Input grounded, 1kHz
V
ripple = 200mVp-p
C
B = 1F, RL =8
70
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0F
80
dB
V
NO
Output Noise Voltage
1kHz, A-weighted
11
V
LM4883
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