參數(shù)資料
型號： TVP6000CPFP
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號轉(zhuǎn)換
英文描述： COLOR SIGNAL ENCODER, PQFP80
封裝： POWER, PLASTIC, TQFP-80
文件頁數(shù)： 14/57頁
文件大?。?/td> 268K
代理商： TVP6000CPFP
2–9
–30
–40
–50
–60
0
0.5
1
1.5
2
2.5
3
G
–
Gain
–
dB
–20
–10
f – Frequency – MHz
0
3.5
4
4.5
5
NTSC_SQP
PAL_SQP
PAL_CCIR/NTSC_CCIR
Figure 2–8. Chroma Path Frequency Response
2.6
Closed Caption
The TVP6000 can be programmed to encode closed caption data and extended data in the selected line.
The closed caption data are sent to the TVP6000 through the I2C interface. The data stream consists of a
seven-bit US-ASCII code and one odd parity bit as shown below.
MSB
US-ASCII
LSB
odd-parity
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Closed caption data format
The standard service encodes closed caption only in the odd field, while the extended service encodes
closed caption in both fields. L21ENA, when set to 1, enables closed caption encoding in the odd field and
L21ENB, when set to 1 enables closed caption encoding in the even field.
The scan line where closed caption is to be encoded is programmable through the SLINE register at
subaddress 6B.
Four closed caption data registers contain the closed caption data to be encoded. Registers LINE21_O0
and LINE21_O1 contain the first byte and the second byte of the close caption data to be encoded in the
odd field. Registers LINE21_E0 and LINE21_E1 contain the first byte and the second byte of the closed
caption data to be encoded in the even field. Immediately after the closed caption data is written to the closed
caption data registers either for the odd field or even field, the corresponding closed caption status bit, CCE
or CCO in the STATUS register at subaddress 02, is reset to 0 to indicate the closed caption data is available
in the closed caption data registers and yet to be encoded. Immediately after the closed caption is encoded,
the CCE or CCO bit is set to 1 to indicate the closed caption data has been encoded and is ready to accept
new data. The null character is automatically inserted if the closed caption data is not written to the closed
caption data registers in time for encoding.
The run-in clock frequency is 503496.5 Hz ( 32
× fline of NTSC ). The closed caption data is encoded in the
format of non-return to zero (NRZ). Additionally, the data translates to the IRE scale in the following manner:
0= 0 IRE; 1 = 50 IRE.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP7000 制造商:Texas Instruments 功能描述:Triple 8-bit Digitizer 150MSPS TVP7000
TVP7000EVM 功能描述:視頻 IC 開發(fā)工具 TVP7000 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V
TVP7000PZP 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Triple 8/10B 150/110 MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP7000PZPR 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8/10B 150/110 MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP7001 制造商:Texas Instruments 功能描述:Triple 8-bit Digitizer 165MSPS TVP7001
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