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参数资料
| 型号： | TVP5150AM1IPBSQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP32 |
| 封装： | GREEN, PLASTIC, TQFP-32 |
| 文件页数： | 15/88页 |
| 文件大小： | 997K |
| 代理商： | TVP5150AM1IPBSQ1 |
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TVP5150AM1
5
XTAL1
14.31818-MHz
Crystal
6
XTAL2
TVP5150AM1
5
XTAL1
6
XTAL2
CL1
CL2
14.31818-MHz
TTL Clock
R
SLES209D – NOVEMBER 2007 – REVISED SEPTEMBER 2010
www.ti.com
3.15.2.3 I2C Timing Requirements
The TVP5150AM1 decoder requires delays in the I2C accesses to accommodate its internal processor's
timing. In accordance with I2C specifications, the TVP5150AM1 decoder holds the I2C clock line (SCL) low
to indicate the wait period to the I2C master. If the I2C master is not designed to check for the I2C clock
line held-low condition, then the maximum delays must always be inserted where required. These delays
are of variable length; maximum delays are indicated in the following diagram:
Normal register writing addresses 00h to 8Fh (addresses 90h to FFh do not require delays).
Slave
Start
address
Ack
Subaddress
Ack
Data (XXh)
Ack
Wait 64 s
Stop
(B8h)
The 64-s delay is for all registers that do not require a reinitialization. Delays may be more for some
registers.
3.16 Clock Circuits
An internal line-locked PLL generates the system and pixel clocks. A 14.31818-MHz clock is required to
drive the PLL. This may be input to the TVP5150AM1 decoder on terminal 5 (XTAL1), or a crystal of
14.31818-MHz fundamental resonant frequency may be connected across terminals 5 and 6 (XTAL2).
Figure 3-8 shows the reference clock configurations. For the example crystal circuit shown (a
parallel-resonant crystal with 14.31818-MHz fundamental frequency), the external capacitors must have
the following relationship:
CL1 = CL2 = 2CL – CSTRAY
where CSTRAY is the terminal capacitance with respect to ground, and CL is the crystal load capacitance
specified by the crystal manufacturer.
Figure 3-8 shows the reference clock configurations.
NOTE: The resistor (R) in parallel with the crystal is recommended to support a wide range of crystal types. A 100-k
Ω resistor
may be used for most crystal types.
Figure 3-8. Reference Clock Configurations
Clock source frequency should have an accuracy of ±50 ppm (max).
22
Functional Description
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): TVP5150AM1
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| TVP5150AM1IPBSR | 功能描述:视频 IC Ultralow Pwr NTSC PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
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| TVP5150AM1IPBSRQ1 | 功能描述:视频 IC Q100 DEVICE FOR TVP5150 RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TVP5150AM1IZQC | 功能描述:视频 IC Ultralow Pwr NTSC PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TVP5150AM1IZQCR | 功能描述:视频 IC Ultralow Pwr NTSC PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
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