The following specifications apply fo" />
參數(shù)資料
型號(hào)： LM4855ITLX/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 22/27頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 1.5W AB 18USMD
標(biāo)準(zhǔn)包裝： 3,000
系列： Boomer®
類型： AB 類
輸出類型： 1-通道（單聲道），帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 1.5W x 1 @ 4 歐姆; 115mW x 2 @ 32 歐姆
電源電壓： 2.6 V ~ 5 V
特點(diǎn)： 消除爆音，靜音，關(guān)機(jī)，SPI，熱保護(hù)，音量控制
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 18-uSMD
封裝/外殼： 18-WFBGA
包裝： 帶卷 (TR)
其它名稱： LM4855ITLX
SNAS164C – JUNE 2002 – REVISED MAY 2013
5V Electrical Characteristics
(1) (2)
The following specifications apply for VDD= 5.0V, TA= 25°C unless otherwise specified.
Symbol
Parameter
Conditions
LM4855
Units
(Limits)
Typical(3)
Limits(4)
Output mode 1
5.7
8
mA (max)
VIN = 0V; No loads
Output mode 1
6.7
9
mA (max)
VIN = 0V; Loaded (Fig.1)
IDD
Supply Current
Output modes 2, 3, 4, 5, 6, 7
7.5
11
mA (max)
VIN = 0V; No loads
Output modes 2, 3, 4, 5, 6, 7
8.5
12
mA (max)
VIN = 0V; Loaded (Fig. 1)
ISD
Shutdown Current
Output mode 0
0.1
2.0
A (max)
VOS
Output Offset Voltage
VIN = 0V
5.0
40
mV (max)
SPKROUT; RL = 4
1.5
W
THD+N = 1%; f = 1kHz, LM4855LQ
SPKROUT; RL = 8
PO
Output Power
1.1
0.8
W (min)
THD+N = 1%; f = 1kHz
ROUT and LOUT; RL = 32
115
70
mW (min)
THD+N = 0.5%; f = 1kHz
SPKROUT
0.5
%
f = 20Hz to 20kHZ
POUT = 400mW; RL = 8
THD+N
Total Harmonic Distortion Plus Noise
ROUT and LOUT
0.5
%
f = 20Hz to 20kHZ
POUT = 50mW; RL = 32
NOUT
Output Noise
A-weighted(5)
29
V
PSRR
VRIPPLE = 200mVPP; f = 217Hz, CB = 1.0F
57
54
dB (min)
Power Supply Rejection Ratio
All audio inputs terminated into 50
;
SPKROUT
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
VRIPPLE = 200mVPP; f = 217Hz, CB = 1.0F
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Power Supply Rejection Ratio
Output Mode 2, 3
62
59
dB (min)
ROUTand LOUT
Output Mode 4, 5
57
54
dB (min)
Output Mode 6, 7
54
51
dB (min)
VIH
Logic High Input Voltage
1.4
V (min)
VDD
V (max)
VIL
Logic Low Input Voltage
0.4
V (max)
GND
V (min)
(1)
Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured
specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.
Some performance characteristics may degrade when the device is not operated under the listed test conditions.
(2)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(3)
Typical specifications are specified at +25°C and represent the most likely parametric norm.
(4)
Tested limits are ensured to AOQL (Average Outgoing Quality Level).
(5)
Please refer to the Output Noise vs Output Mode table in the Typical Performance Characteristics section for more details.
4
Copyright 2002–2013, Texas Instruments Incorporated
Product Folder Links: LM4855
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4855LQ 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4855LQ/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4855LQBD 功能描述:BOARD EVALUATION LM4855LQ RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)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:-
LM4855LQX/NOPB 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1.5W Class-AB 24-Pin LLP EP T/R
LM4856 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Integrated Audio Amplifier System
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