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參數資料
| 型號： | LM4855IBL |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System |
| 中文描述： | 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18 |
| 封裝： | MICRO SMD-18 |
| 文件頁數： | 5/24頁 |
| 文件大?。?/td> | 1116K |
| 代理商： | LM4855IBL |
Electrical Characteristics
(Notes 2, 8)
The following specifications apply for V
DD
= 3.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4855
Units
(Limits)
Typical
(Note 5)
Limits
(Note 6)
I
DD
Supply Current
Output mode 1
V
IN
= 0V; No loads
Output mode 1
V
IN
= 0V; Loaded (Fig.1)
Output modes 2, 3, 4, 5, 6, 7
V
IN
= 0V; No loads
Output modes 2, 3, 4, 5, 6, 7
V
IN
= 0V; Loaded (Fig. 1)
Output mode 0
V
IN
= 0V
SPKR
OUT
; R
L
= 4
THD+N = 1%; f = 1kHz, LM4855LQ
SPKR
OUT
; R
L
= 8
THD+N = 1%; f = 1kHz
R
OUT
and L
OUT
; R
L
= 32
THD+N = 0.5%; f = 1kHz
SPKR
OUT
f = 20Hz to 20kHZ
P
OUT
= 250mW; R
L
= 8
R
OUT
and L
OUT
f = 20Hz to 20kHZ
P
OUT
= 20mW; R
L
= 32
A-weighted (Note 10)
V
RIPPLE
= 200mV
PP
; f = 217Hz, C
B
=
1.0μF
All audio inputs terminated into 50
;
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
V
RIPPLE
= 200mV
PP
; f = 217Hz, C
B
=
1.0μF
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Output Mode 2, 3
Output Mode 4, 5
Output Mode 6, 7
4.5
7
mA (max)
5.0
8
mA (max)
6.5
10
mA (max)
7
11
mA (max)
I
SD
V
OS
Shutdown Current
Output Offset Voltage
0.1
5.0
430
2.0
40
μA (max)
mV (max)
mW
P
O
Output Power
340
300
mW (min)
25
20
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
0.5
%
0.5
%
N
OUT
Output Noise
29
58
μV
PSRR
Power Supply Rejection Ratio
SPKR
OUT
55
dB (min)
Power Supply Rejection Ratio
R
OUT
and L
OUT
63
58
55
60
55
52
1.4
V
DD
0.4
GND
dB (min)
dB (min)
dB (min)
V (min)
V (max)
V (max)
V (min)
V
IH
Logic High Input Voltage
V
IL
Logic Low Input Voltage
L
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PDF描述 |
|---|---|
| LM4855LQ | Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System |
| LM4855ITL | Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System |
| LM4855 | Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System |
| LM4857 | Stereo 1.2W Audio Sub-system with 3D Enhancement |
| LM4857GR | Stereo 1.2W Audio Sub-system with 3D Enhancement |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4855IBL/NOPB | 功能描述:IC AMP AUDIO PWR 1.5W AB 18USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4855ITL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC AMP AUDIO 1W MONO SMD 4855 |
| LM4855ITL/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4855ITLX | 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1.1W Class-AB 18-Pin uSMD T/R |
| LM4855ITLX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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