參數(shù)資料
型號(hào)： LM4844
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)： 4/21頁
文件大?。?/td> 983K
代理商： LM4844
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
LM4844
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
I
DD
Supply Current
V
IN
= 0V, No load;
LD5 = RD5 = 0
Mode 4, 9, 14
Mode 2, 7, 12
Mode 3, 8, 13
Mode 0
Speaker; THD+N = 1%;
f = 1kHz; 4
BTL
Headphone; THD+N = 1%;
f = 1kHz; 32
SE
LD5 = RD5 = 0
Speaker; P
O
= 200mW;
f = 1kHz; 8
BTL
Headphone; P
O
= 10mW;
f = 1kHz; 32
SE
Speaker; LD5 = RD5 = 0
Headphone; LD5 = RD5 = 0
A-weighted; 0dB gain;
LD5 = RD5 = 0
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
f = 217Hz, V
rip
= 200mV
pp
; C
B
= 2.2μF;
0dB Gain Setting; LD5 = RD5 = 0
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13,
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
LD5 = RD5 = 0
Loudspeaker; P
O
= 200mW;
f = 1kHz
Headphone; P
O
= 10mW;
f = 1kHz
CD4 = 0; C
B
= 2.2μF
CD4 = 1; C
B
= 2.2μF
4.5
10
11
0.1
7.5
16
18
2
mA (max)
mA (max)
mA (max)
μA (max)
I
SD
Shutdown Current
P
O
Output Power
390
320
mW (min)
28
21
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
0.05
%
0.05
%
V
OS
Offset Voltage
5
2
40
30
mV (max)
mV (max)
N
OUT
Output Noise
32
41
13
15
μV
μV
μV
μV
PSRR
Power Supply Rejection Ratio
73
66
78
72
dB
55
dB (min)
dB
dB (min)
62
Xtalk
Crosstalk
85
dB
60
dB
T
WU
Wake-up Time
70
30
ms
ms
Volume Control Electrical Characteristics
(Notes 1, 2)
The following specifications apply for 3V
≤
V
DD
≤
5V and 3V
≤
I
2
CV
DD
≤
5V, unless otherwise specified. Limits apply for T
A
=
25C.
Symbol
Parameter
Conditions
LM4844
Limits
(Notes
7, 8)
Units
(Limits)
Typical
(Note 6)
6
Stereo Volume Control Range
maximum gain setting
5.5
6.5
-41
-40
dB (min)
dB (max)
dB (min)
dB (max)
minimum gain setting
-40.5
L
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4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4844_07 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 1.2W Audio Sub-System with 3D Enhancement
LM4844TL/NOPB 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
LM4844TLEVAL 功能描述:BOARD EVALUATION LM4844TL RoHS:否 類別:編程器，開發(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:-
LM4844TLX/NOPB 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
LM4845 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Output Capacitor-less Audio Subsystem with Programmable National 3D
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