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參數(shù)資料
| 型號： | LM4845 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Output Capacitor-less Audio Subsystem with Programmable National 3D |
| 中文描述： | 輸出電容器的音頻子系統(tǒng)，具有可編程全國三維 |
| 文件頁數(shù)： | 7/29頁 |
| 文件大小： | 1392K |
| 代理商： | LM4845 |
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Electrical Characteristics 5.0V
(Notes 3, 7)
The following specifications apply for V
DD
= 5.0V, T
A
= 25C unless otherwise specified. [A
V
= 2 (BTL), A
V
= 1 (SE)].
Symbol
Parameter
Conditions
LM4845
Units
(Limits)
Typical
(Note 4)
Limits
(Notes 5,
10)
I
DD
Supply Current
Output Modes 2, 4, 6
V
IN
= 0V; No load,
OCL = 0 (Table 2)
Output Modes 1, 3, 5, 7
V
IN
= 0V; No Load,
OCL = 0 (Table 2)
Output mode 0
V
IN
= 0V, Mode 5 (Note 10)
SPKR
OUT
; R
L
= 8
THD+N = 1%; f = 1kHz, BTL, Mode 1
R
OUT
and L
OUT
; R
L
= 32
THD+N = 1%; f = 1kHz, SE, Mode 4
SPKR
OUT
f = 20Hz to 20kHz
P
OUT
= 500mW; R
L
= 8
, BTL, Mode 1
R
OUT
and L
OUT
f = 20Hz to 20kHz
P
OUT
= 30mW; R
L
= 32
,SE, Mode 4
A-weighted (Note 9), Mode 5, BTL
input referred
V
RIPPLE
= 200mV
PP
; f = 217Hz,
C
B
= 2.2μF, BTL
All audio inputs terminated into 50
;
Output referred Gain (BTL) = 6dB
Output Mode 1, 7
Output Mode 3
Output Mode 5
V
RIPPLE
= 200mV
PP
; f = 217Hz,
C
B
= 2.2μF, SE, C
O
= 100μF
All audio inputs terminated into 50
;
Output referred Gain,
OCL = 0 (Table 2)
Output Mode 2
Output Mode 4
Output Mode 6, 7
3.6
mA
6.8
mA
I
SD
V
OS
Shutdown Current
Output Offset Voltage
0.1
10
μA
mV
P
O
Output Power
1.25
W
80
mW
THD+N
Total Harmonic Distortion Plus
Noise
0.5
%
0.5
%
N
OUT
Output Noise
26
μV
PSRR
Power Supply Rejection Ratio
SPKR
OUT
71
68
63
dB
dB
dB
Power Supply Rejection Ratio
R
OUT
and L
OUT
88
88
84
dB
dB
dB
dB
dB
dB
dB
dB
k
k
k
k
Digital Volume Range
(R
IN
and L
IN
)
Input referred maximum attenuation
-54
Input referred maximum gain
18
Mute Attenuation
Output Mode 1, 3, 5
80
Phone In Input Impedance
R
IN
and L
IN
Input Impedance
Maximum gain setting
11
Minimum gain setting
100
L
www.national.com
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4845ITL | Output Capacitor-less Audio Subsystem with Programmable National 3D |
| LM4850 | Mono 1.5 W / Stereo 300 mW Power Amplifier |
| LM4850LD | Mono 1.5 W / Stereo 300 mW Power Amplifier |
| LM4850MM | Mono 1.5 W / Stereo 300 mW Power Amplifier |
| LM4850MT | Mono 1.5 W / Stereo 300 mW Power Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4845ITL | 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1.15W Class-AB 25-Pin uSMD T/R |
| LM4845ITL/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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4845ITLX/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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4846 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Output Capacitor-less Audio Subsystem with Programmable National 3D |
| LM4846TL | 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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