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參數資料
| 型號： | TVP5151ZQC |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL DECODER, PBGA48 |
| 封裝： | GREEN, PLASTIC, BGA-48 |
| 文件頁數： | 10/85頁 |
| 文件大?。?/td> | 958K |
| 代理商： | TVP5151ZQC |
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TVP5151
SLES241D – SEPTEMBER 2009 – REVISED MARCH 2011
www.ti.com
3.15 I
2C Host Interface
The I2C standard consists of two signals, serial input/output data line (SDA) and input/output clock line
(SCL), which carry information between the devices connected to the bus. A third signal (I2CSEL) is used
for slave address selection. Although the I2C system can be multimastered, the TVP5151 decoder
functions only as a slave device.
Both SDA and SCL must be connected to a positive supply voltage via a pullup resistor. When the bus is
free, both lines are high. The slave address select terminal (I2CSEL) enables the use of two TVP5151
decoders tied to the same I2C bus. At power up, the status of the I2CSEL is polled. Depending on the
write and read addresses to be used for the TVP5151 decoder, it can either be pulled low or high through
a resistor. This terminal is multiplexed with YOUT7 and hence must not be tied directly to ground or
Table 3-5. Write Address
Selection
I2CSEL
WRITE ADDRESS
0
B8h
1
BAh
Table 3-6. I2C Terminal Description
SIGNAL
TYPE
DESCRIPTION
I2CSEL (YOUT7)
I
Slave address selection
SCL
I/O (open drain)
Input/output clock line
SDA
I/O (open drain)
Input/output data line
Data transfer rate on the bus is up to 400 kbit/s. The number of interfaces connected to the bus is
dependent on the bus capacitance limit of 400 pF. The data on the SDA line must be stable during the
high period of the SCL except for start and stop conditions. The high or low state of the data line can only
change with the clock signal on the SCL line being low. A high-to-low transition on the SDA line while the
SCL is high indicates an I2C start condition. A low-to-high transition on the SDA line while the SCL is high
indicates an I2C stop condition.
Every byte placed on the SDA must be eight bits long. The number of bytes which can be transferred is
unrestricted. Each byte must be followed by an acknowledge bit. The acknowledge-related clock pulse is
generated by the I2C master.
18
Functional Description
Copyright 2009–2011, Texas Instruments Incorporated
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相關代理商/技術參數 |
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| TVP5151ZQCR | 功能描述:視頻 IC UltraLo-Pwr NTSC/PAL SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5154 | 制造商:Texas Instruments 功能描述:4-channel 9-bit Video Decoder TVP5154 |
| TVP5154A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-Channel Low-Power PAL/NTSC/SECAM Video Decoder With Independent Scalers and Fast Lock |
| TVP5154AIPNP | 功能描述:視頻 IC 4Ch Lo Pwr PAL/NTSC/ SECAM Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5154AIPNPR | 功能描述:視頻 IC 4Ch Lo Pwr PAL/NTSC/ SECAM Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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