參數(shù)資料
型號: LM4857GR/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA49
文件頁數(shù): 40/40頁
文件大?。?/td> 1948K
代理商: LM4857GR/NOPB
Audio Amplifier Electrical Characteristics V
DD = 3.0V (Notes 1, 2) (Continued)
The following specifications apply for V
DD = 3.0V, unless otherwise specified. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4857
Units
(Limits)
Typical
Limits (Notes
P
O
Output Power
Speaker; THD+N = 1%;
f = 1kHz; 8
BTL
400
320
mW (min)
Headphone; THD+N = 1%;
f = 1kHz; 32
SE
25
20
mW (min)
Earpiece; THD+N = 1%;
f = 1kHz; 32
BTL; CD4 = 0
30
22
mW (min)
Earpiece; THD+N = 1%;
f = 1kHz; 32
BTL; CD4 = 1
30
mW
THD+N
Total Harmonic Distortion Plus
Noise
LD5=RD5=0
Speaker; P
O= 200mW;
f = 1kHz; 8
BTL
0.05
%
Headphone; P
O= 10mW;
f = 1kHz; 32
SE
0.04
%
Earpiece; P
O=10mW;
f = 1kHz; 32
BTL; CD4 = 0
0.06
%
Line Out; V
O=1VRMS;
f = 1kHz; 5k
SE
0.015
%
V
OS
Offset Voltage
Speaker; LD5 = RD5 = 0
5
40
mV (max)
Earpiece; LD5 = RD5 = 0
5
30
mV (max)
N
OUT
Output Noise
A-weighted; 0dB gain; (Note 11)
LD5 = RD5 = 0; All Inputs Terminated
Speaker; Mode 2, 3, 7, 8
27
V
Speaker; Mode 12, 13
38
V
Headphone; Mode 3, 4, 8, 9
10
V
Headphone; Mode 13, 14
14
V
Earpiece; Mode 1
13
V
Earpiece; Mode 6
18
V
Earpiece; Mode 11
21
V
Line Out; Mode 5
11
V
Line Out; Mode 10
14
V
Line Out; Mode 15
17
V
PSRR
Power Supply Rejection Ratio
f = 217Hz, V
rip = 200mVpp;CB = 2.2F;
0dB gain; (Note 11)
LD5 = RD5 = 0; All Audio Inputs
Terminated
Speaker; Mode 2, 3, 7, 8
70
dB
Speaker; Mode 12, 13,
65
55
dB (min)
Headphone; Mode 3, 4, 8, 9
87
dB
Headphone; Mode 13, 14
75
62
dB (min)
Earpiece; Mode1
76
dB
Earpiece; Mode 6
70
dB
Earpiece; Mode 11
67
57
dB (min)
Line Out; Mode 5
88
dB
Line Out; Mode 10
74
dB
Line Out; Mode 15
71
58
dB (min)
LM4857
www.national.com
9
相關(guān)PDF資料
PDF描述
LM4858MM/NOPB 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10
LM4858LD/NOPB 1.7 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO14
LM4860MDA 1.15 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC
LM4860MWA 1.15 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC
LM4861MWA 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4857ITL 制造商:Texas Instruments 功能描述:1.2W STEREO SUBSYST 3D SMD 4857
LM4857ITL/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
LM4857ITLBD 功能描述:BOARD EVALUATION LM4857ITL 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:-
LM4857ITLX/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
LM4857SP 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