參數(shù)資料
型號(hào)： THS8135PHP
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： DAC
英文描述： PARALLEL, WORD INPUT LOADING, 0.015 us SETTLING TIME, 10-BIT DAC, PQFP48
封裝： GREEN, PLASTIC, HTQFP-48
文件頁(yè)數(shù)： 3/25頁(yè)
文件大?。?/td> 522K
代理商： THS8135PHP
THS8135
TRIPLE 10BIT, 240 MSPS VIDEO DAC WITH TRILEVEL SYNC AND VIDEO
(ITUR.BT601)COMPLIANT FULL SCALE RANGE
SLAS343A MAY 2001 REVISED JUNE 2002
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
0
1023
0
700
512
400
50
800
64
960
300 mV
800 mV
700 mV
300 mV
Illegal Color
Difference Outputs
Input
Codes
VO
mV
0
Figure 4. CbCr Outputs, Reduced-Scale Input Code Range
output amplitude control
The current drive on all three output channels (including sync) is controlled by a resistor RFS that must be
connected between FSADJ and AVSS. In all operation modes the relative amplitudes of these current drivers
are maintained irrespective of the RFS value, as long as a maximum current drive capability is not exceeded.
Therefore, a 7:3 video to sync ratio is preserved when adjusting RFS.
The sync generator is composed of different current sources that are internally routed to a corresponding DAC
output. Since they are additional to the video DACs, full 10-bit DAC resolution is preserved for video. Depending
on the setting of INS3_INT during SYNC low, the sync current drive is added to either only the green channel
output (sync-on-G/Y) if INS3_INT=L or all three channel outputs (sync-on-all) if INS3_INT=H. Sync insertion
is only available in video DAC mode.
Figure 5 shows the relationship between RFS and the current drive level on each channel for full-range DAC
input. When using reduced-scale range, the codes on the G/Y channel are not internally scaled (only BCb and
RCr channels are scaled). Therefore, the user should increase the DAC full-scale current by decreasing RFS
by a factor of 1023/(940-64) to map the reduced-scale Y input code range to the same output current drive level.
Since these are the current drive levels for the video DACs they do not take into account the additional dc bias
for sync insertion when using video DAC mode. The voltage compliance outputs in Figure 5 assume termination
with a 37.5-
resistor.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS8135PHP 制造商:Texas Instruments 功能描述:10BIT DAC 240MSPS TRIPLE SMD
THS8135PHPG4 功能描述:數(shù)字化視頻/模擬轉(zhuǎn)換器集成電路 Tr 10B 240MSPS Video DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:3 輸出類(lèi)型:Current 轉(zhuǎn)換速率:180 MSPs 分辨率:10 bit 接口類(lèi)型:Parallel 電壓參考:Internal or External 積分非線(xiàn)性:- 2.5 LSB, 1.5 LSB 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:HTQFP 封裝:Tray
THS8136 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:TRIPLE 10-BIT 180-MSPS GRAPHICS AND VIDEO DAC
THS8136IPHP 功能描述:數(shù)字化視頻/模擬轉(zhuǎn)換器集成電路 Triple 10B 180MSPS Graphics & Video DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:3 輸出類(lèi)型:Current 轉(zhuǎn)換速率:180 MSPs 分辨率:10 bit 接口類(lèi)型:Parallel 電壓參考:Internal or External 積分非線(xiàn)性:- 2.5 LSB, 1.5 LSB 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:HTQFP 封裝:Tray
THS8136IPHPR 功能描述:數(shù)字化視頻/模擬轉(zhuǎn)換器集成電路 Triple 10B 180MSPS Graphics & Video DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:3 輸出類(lèi)型:Current 轉(zhuǎn)換速率:180 MSPs 分辨率:10 bit 接口類(lèi)型:Parallel 電壓參考:Internal or External 積分非線(xiàn)性:- 2.5 LSB, 1.5 LSB 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:HTQFP 封裝:Tray
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