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參數(shù)資料
| 型號： | LM4845ITL |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Output Capacitor-less Audio Subsystem with Programmable National 3D |
| 中文描述： | 0.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA25 |
| 封裝： | MICRO, SMD-25 |
| 文件頁數(shù)： | 21/29頁 |
| 文件大?。?/td> | 1392K |
| 代理商： | LM4845ITL |
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Application Information
(Continued)
SPI DESCRIPTION
0. I
2
CSPI_SEL: This pin is tied HIGH for SPI mode.
1. The data bits are transmitted with the MSB first.
2. The maximum clock rate is 1MHz for the CLK pin.
3. CLK must remain HIGH for at least 500ns (t
CH
) after the
rising edge of CLK, and CLK must remain LOW for at least
500ns (t
CL
) after the falling edge of CLK.
4. The serial data bits are sampled at the rising edge of CLK.
Any transition on DATA must occur at least 100ns (t
)
before the rising edge of CLK. Also, any transition on DATA
must occur at least 100ns (t
) after the rising edge of CLK
and stabilize before the next rising edge of CLK.
5.ID_ENB should be LOW only during serial data transmis-
sion.
6. ID_ENB must be LOW at least 100ns (t
) before the first
rising edge of CLK, and ID_ENB has to remain LOW at least
100ns (t
EH
) after the eighth rising edge of CLK.
7. If ID_ENB remains HIGH for more than 100ns before all 8
bits are transmitted then the data latch will be aborted.
8. If ID_ENB is LOW for more than 8 CLK pulses then only
the first 8 data bits will be latched and activated when
ID_ENB transitions to logic-high.
9. ID_ENB must remain HIGH for at least 100ns (t
EL
) to latch
in the data.
10. Coincidental rising or falling edges of CLK and ID_ENB
are not allowed. If CLK is to be held HIGH after the data
transmission, the falling edge of CLK must occur at least
100ns (t
) before ID_ENB transitions to LOW for the next
set of data.
201059F4
FIGURE 4. I
2
C Timing Diagram
20105924
FIGURE 5. SPI Timing Diagram
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LM4846TL/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 |
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