參數(shù)資料
型號： TDA8754HL/17
廠商： NXP SEMICONDUCTORS
元件分類： ADC
英文描述： 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, LOW PROFILE, PLASTIC, SOT-486-1, MS-026, QFP-144
文件頁數(shù)： 6/57頁
文件大小： 264K
代理商： TDA8754HL/17
9397 750 14984
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 06 — 16 June 2005
14 of 57
Philips Semiconductors
TDA8754
Triple 8-bit video ADC up to 270 Msps
8.1.1.2
Power-down mode
In Power-down mode the status of the blocks is as follows:
All digital inputs and outputs are in high-impedance state
All blocks are inactive (I2C-bus, activity detection, ADCs, etc.)
Analog output is left uncontrolled
I2C-bus is left in high-impedance state.
8.2 Analog video input
The RGB/YUV video inputs are externally AC coupled and are internally DC polarized.
The synchronization signals are also used by the device as input for the internal PLL and
the automatic clamp.
8.2.1 Analog multiplexers
The TDA8754 has two analog inputs (RGB input 1 and RGB input 2) selectable via the
I2C-bus.
The sync management can be achieved in several ways:
Choice between two analog inputs HSYNC and two analog inputs VSYNC
Choice between two analog inputs CHSYNC
Choice between two analog inputs SOG.
8.2.2 Activity detection
When a signal is connected or disconnected on pins HSYNC1(2), CHSYNC1(2),
VSYNC1(2) and SOG1(2), then bit HPDO is set to logic 1 and pin HPDO is set to HIGH to
advise the user of a change. Bit HPDO is set to logic 0 and pin HPDO is set to LOW when
register ACTIVITY2 has been read.
When the synchronization pulse on pin SOG is 3-level, the system will automatically be
able to detect that a 3-level sync is present and will force bit 3LEVEL to logic 1. It is
possible to disable this function with bit FTRILEVEL.
When an interlaced signal is detected, bit ACFIELD is set to logic 1. When the signal
detected is progressive, this bit is set to logic 0. Any change in this bit results into setting
bit HPDO = 1 and pin HPDO = HIGH.
A eld detection unit is available on pin FIELDO which output is given by the sync
separator. The eld identity is given by pin FIELDO. This pin gives the eld of interlaced
signal input.
An automatic polarity detection is also available on pins HSYNC1(2), VSYNC1(2) and
CHSYNC1(2). The output on pin HPDO is not affected by the change of polarity of these
inputs.
8.2.3 ADC
The three ADCs are designed to convert R, G and B (or Y, U and V) signals at a
maximum frequency of 270 Msample/s. The ADC input range is 1 V (p-p) full-scale and
the pipeline delay is 2 ADC clock cycles from the input sampling to the data output.
相關PDF資料
PDF描述
TDA8754EL/17/C1 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PBGA208
TDA8754EL/14/C1 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PBGA208
TDA8754EL/21/C1 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PBGA208
TDA8754HL/17/C1 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP144
TDA8754HL/21/C1 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP144
相關代理商/技術參數(shù)
參數(shù)描述
TDA8754HL17BE-S 功能描述:視頻模擬/數(shù)字化轉換器集成電路 TRPL 8BIT VIDEO ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 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
TDA8754HL17BE-T 功能描述:視頻模擬/數(shù)字化轉換器集成電路 3X8 BIT VIDEO A/D-170 MSPS RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 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
TDA8754HL21BE-S 功能描述:視頻模擬/數(shù)字化轉換器集成電路 TRPL 8BIT VIDEO ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 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
TDA8754HL21BE-T 功能描述:視頻模擬/數(shù)字化轉換器集成電路 3X8 BIT VIDEO A/D-210 MSPS RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 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
TDA8754HL27BE-S 功能描述:視頻模擬/數(shù)字化轉換器集成電路 3X8 BIT VIDEO A/D-270 MSPS RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 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
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