參數(shù)資料
型號(hào)： 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(guó)三維
文件頁(yè)數(shù)： 8/29頁(yè)
文件大?。?/td> 1392K
代理商： LM4845
I
2
C/SPI
(Notes 2, 7)
The following specifications apply for V
DD
= 5.0V and 3.3V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4845
Units
(Limits)
Typical
(Note 4)
Limits
(Notes 5,
10)
t
1
t
2
t
3
t
4
t
5
f
SPI
t
EL
t
DS
t
ES
t
DH
t
EH
t
CL
t
CH
t
CS
V
IH
I
2
C Clock Period
I
2
C Clock Setup Time
I
2
C Data Hold Time
Start Condition Time
Stop Condition Time
Maximum SPI Frequency
SPI ENB Low Time
SPI Data Setup Time
SPI ENB Setup Time
SPI Data Hold Time
SPI Enable Hold Time
SPI Clock Low Time
SPI Clock High Time
SPI Clock Transition Time
I
2
C/SPI Input Voltage High
2.5
100
100
100
100
1000
100
100
100
100
100
500
500
100
μs (max)
ns (min)
ns (min)
ns (min)
ns (min)
kHz (max)
ns (min)
μs (max)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
V (min)
0.7xI
2
CSPI
V
DD
0.3xI
2
CSPI
V
DD
V
IL
I
2
C/SPI Input Voltage Low
V (max)
Note 1:
See AN-450 "Surface Mounting and their effects on Product Reliability" for other methods of soldering surface mount devices.
Note 2:
Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and
test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions.
Note 3:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 4:
Typical specifications are specified at +25C and represent the most likely parametric norm.
Note 5:
Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 6:
Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage, then discharged directly into the
IC with no external series resistor (resistance of discharge path must be under 50
).
Note 7:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 8:
The given
θ
JA
for an LM4845ITL mounted on a demonstration board with a 9in
2
area of 1oz printed circuit board copper ground plane.
Note 9:
Datasheet min/max specifications are guaranteed by design, test, or statistical analysis.
Note 10:
Potentially worse case: All three input stages are DC coupled to the BTL output stage.
L
www.national.com
8
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(fēng)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(fēng)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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