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參數(shù)資料
| 型號： | LM4888SQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D Enhancement |
| 中文描述： | 3 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 1179K |
| 代理商： | LM4888SQ |
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
LM4888
Units
(Limits)
Typical
(Note 8)
35
.015
71
Limit
(Note 9)
P
O
THD+N
Output Power
Total Harmonic Distortion+Noise
THD+N = 0.5%, f = 1 kHz, R
L
= 32
P
O
= 25mW, 1kHz, R
L
= 32
Input Unterminated, 217Hz
V
ripple
= 200mV
p-p
C
6
= 1μF, R
L
= 32
Input Unterminated, 1kHz
V
ripple
= 200mV
p-p
C
6
= 1μF, R
L
= 32
Input grounded, 217Hz
V
ripple
= 200mV
p-p
C
6
= 1μF, R
L
= 32
Input grounded, 1kHz
V
ripple
= 200mV
p-p
C
6
= 1μF, R
L
= 32
f = 1kHz, C
6
= 1.0μF, 3D Control = Low
1kHz, A-weighted
mW
%
dB
PSRR
Power Supply Rejection Ratio
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 LM4888SQ, T
JMAX
= 150C.
Note 5:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 6:
Machine model, 200pF–220pF 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 LM4888SQ 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 1).
L
www.national.com
6
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| LM4888SQ/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 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® 類型:H 類 輸出類型: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) |
| LM4888SQBD | 功能描述:BOARD EVALUATION LM4888SQ RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 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:1 系列:- |
| LM4888SQX/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 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® 類型:H 類 輸出類型: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) |
| LM4889 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1 Watt Audio Power Amplifier |
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