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參數(shù)資料
| 型號： | LM4936 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C) |
| 中文描述： | 2W的立體聲音頻功率放大器，帶有音量控制和可選控制接口（SPI或I2C） |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 1490K |
| 代理商： | LM4936 |
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Electrical Characteristics for Bridged Mode Operation
(Notes 7, 10) (Continued)
The following specifications apply for V
DD
= 5V, unless otherwise noted. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4936
Units
(Limits)
Typical
(Note 14)
36
63
Limit
(Note 15)
N
OUT
X
talk
Output Noise
Channel Separation (Note 17)
A-Wtd Filter
f = 1kHz, C
B
= 1μF
μV
dB
Note 3:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 2in
2
piece of 1 ounce printed circuit board copper.
Note 4:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is soldered to a 2in
2
piece of 1 ounce printed circuit board copper on a bottom side layer
through 21 8mil vias.
Note 5:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 1in
2
piece of 1 ounce printed circuit board copper.
Note 6:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is not soldered to any copper.
Note 7:
All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown
in
Figure 1
.
Note 8:
When driving 3
loads from a 5V supply the LM4936MH must be mounted to the circuit board and forced-air cooled. The demo board shown in the
datasheet has planes for heat sinking. The top layer plane is 1.05 in
(675mm
), the inner two layers each have a 1.03 in
(667mm
) plane and the bottom layer
has a 3.32 in
(2143mm
) plane. The planes are electrically GND and interconnected through six 15 mil vias directly under the package and eight 28 mil vias in
various locations.
Note 9:
When driving 4
loads from a 5V supply the LM4936MH must be mounted to the circuit board. The demo board shown in the datasheet has planes for heat
sinking. The top layer plane is 1.05 in
(675mm
), the inner two layers each have a 1.03 in
(667mm
(2143mm
) plane.
The planes are electrically GND and interconnected through six 15 mil vias directly under the package and eight 28 mil vias in various locations.
Note 10:
Absolute Maximum Ratings
indicate limits beyond which damage to the device may occur.
Operating Ratings
indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Electrical Characteristics
state DC andAC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 11:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
,
θ
, and the ambient temperature T
. The maximum
allowable power dissipation is P
= (T
T
)/
θ
. For the LM4936, T
JMAX
= 150C, and the typical junction-to-ambient thermal resistance for each package
can be found in the
Absolute Maximum Ratings
section above.
Note 12:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 13:
Machine Model, 220pF – 240pF discharged through all pins.
Note 14:
Typicals are measured at 25C and represent the parametric norm.
Note 15:
Limits are guaranteed to National’s AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test, or
statistical analysis.
Note 16:
I
2
C/SPI V
DD
must not be larger than V
DD
at any time or damage to the IC may occur. During power up and power down, I
2
C/SPI V
DD
must remain equal
to V
DD
or lower.
Note 17:
PCB design will affect Crosstalk performance.
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM49360 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators |
| LM49360RL | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators |
| LM49360RLX | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators |
| LM4936MH | 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 |
| LM4936MH/NOPB | 功能描述:音頻放大器 Stereo 2W Audio Pwr Amp 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 |
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