參數(shù)資料
型號(hào)： LM4883
廠商： National Semiconductor Corporation
元件分類(lèi)： 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(jī)
文件頁(yè)數(shù)： 6/23頁(yè)
文件大?。?/td> 1244K
代理商： LM4883
Electrical Characteristics for Single-Ended Operation (3V)
(Notes 3, 7, 13)
The following specifications apply for V
DD
= 3V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4883
Units
(Limits)
Typical
(Note 8)
35
125
150
Limit
(Note 9)
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
= 35mW, 20Hz
≤
f
≤
20kHz,
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
= 32
Input grounded, 1kHz
V
ripple
= 200mV
p-p
C
B
= 1μF, R
L
= 32
f = 1kHz, C
B
= 1.0μF
1kHz, A-weighted
mW
mW
mW
THD+N
Total Harmonic Distortion+Noise
.015
%
PSRR
Power Supply Rejection Ratio
71
dB
79
dB
65
dB
72
dB
X
TALK
V
NO
Channel Separation
Output Noise Voltage
80
11
dB
μV
Note 3:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device operates within the Operating Ratings. Specifications are not guaranteed for parameters where
no limit is given. The typical value however, is a good indication of device performance.
Note 4:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
,
θ
JA
, and the ambient temperature T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
T
A
)/
θ
JA
. For the LM4883SQ, T
JMAX
= 150C.
Note 5:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 6:
Machine model, 220 pF–240 pF discharged through all pins.
Note 7:
All voltages are measured with respect to the ground (GND) pins, unless otherwise specified.
Note 8:
Typicals are specified at 25C and represent the parametric norm.
Note 9:
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 10:
The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 11:
Output power is measured at the device terminals.
Note 12:
When driving 3
or 4
loads and operating on a 5V supply, the LM4883SQ must be mounted to a circuit board that has a minimum of 2.5in
2
of exposed,
uninterrupted copper area connected to the SQ package’s exposed DAP.
Note 13:
All measurements taken from Applications Diagram (Figure 3).
L
www.national.com
6
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參數(shù)描述
LM4883A E WAF 制造商:Texas Instruments 功能描述:
LM4883SQ 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Dual 2.1W Audio Amplifier Plus Stereo Headphone
LM4883SQ/NOPB 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類(lèi)型:H 類(lèi) 輸出類(lèi)型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類(lèi)型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
LM4883-SQ_BOM-001A 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Demo Board
LM4883SQX/NOPB 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類(lèi)型:H 類(lèi) 輸出類(lèi)型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類(lèi)型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
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