參數(shù)資料
型號： LM4857
廠商： National Semiconductor Corporation
英文描述： Stereo 1.2W Audio Sub-system with 3D Enhancement
中文描述： 1.2W的立體聲音頻子系統(tǒng)三維增強(qiáng)系統(tǒng)
文件頁數(shù)： 8/38頁
文件大?。?/td> 1517K
代理商： LM4857
Audio Amplifier Electrical Characteristics V
DD
= 5.0V
(Notes 1, 2) (Continued)
The following specifications apply for V
DD
= 5.0V, unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4857
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
N
OUT
Output Noise
A-weighted, 0dB gain; (Note 11)
LD5 = RD5 = 0; Audio Inputs Terminated
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
Earpiece; Mode 1; CD4 = 0
Earpiece; Mode 6
Earpiece; Mode 11
Line Out; Mode 5
Line Out; Mode 10
Line Out; Mode 15
f = 217Hz; V
rip
= 200mV
pp
; C
B
= 2.2μF;
0dB gain; (Note 11)
LD5 = RD5 = 0; Audio Inputs Terminated
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13,
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
Earpiece; Mode1
Earpiece; Mode 6
Earpiece; Mode 11
Line Out; Mode 5
Line Out; Mode 10
Line Out; Mode 15
LD5 = RD5 = 0
Loudspeaker; P
O
= 400mW;
f = 1kHz
Headphone; P
O
= 15mW;
f = 1kHz
CD5 = 0; C
B
= 2.2μF
CD5 = 1; C
B
= 2.2μF
27
38
10
14
13
18
21
11
14
17
μV
μV
μV
μV
μV
μV
μV
μV
μV
μV
PSRR
Power Supply Rejection Ratio
70
64
86
73
75
70
66
86
74
68
dB
54
dB (min)
dB
dB (min)
dB
dB
dB (min)
dB
dB
dB (min)
60
57
57
Xtalk
Crosstalk
85
dB
85
dB
T
WU
Wake-up Time
120
230
ms
ms
Audio Amplifier Electrical Characteristics V
DD
= 3.0V
(Notes 1, 2)
The following specifications apply for V
DD
= 3.0V, unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4857
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
I
DD
Supply Current
V
IN
= 0V, No load;
LD5 = RD5 = 0 (Note 9)
Mode 1, 6, 11
Mode 4, 5, 9, 10, 14, 15
Mode 2, 3, 7, 8, 12, 13
Mode 0 (Note 9)
LM4857SP
Speaker; THD+N = 1%;
f = 1kHz; 4
BTL
5.5
4.5
11.2
0.06
9
mA (max)
mA (max)
mA (max)
μA (max)
7.5
19
2.5
I
SD
Shutdown Current
P
O
Output Power
530
mW
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4857_05 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 1.2W Audio Sub-system with 3D Enhancement
LM4857GR 功能描述:IC AUDIO SUBSYSTEM W/3D 49UBGA RoHS:否 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)
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:-
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