参数资料
型号: THS8134ACPHP
厂商: TEXAS INSTRUMENTS INC
元件分类: DAC
英文描述: PARALLEL, 8 BITS INPUT LOADING, 0.005 us SETTLING TIME, 8-BIT DAC, PQFP48
封装: PLASTIC, HTQFP-48
文件页数: 9/27页
文件大小: 553K
代理商: THS8134ACPHP
THS8134, THS8134A, THS8134B
TRIPLE 8BIT, 80 MSPS VIDEO D/A CONVERTER
WITH TRILEVEL SYNC GENERATION
SLVS205D MAY 1999 REVISED MARCH 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
APPLICATION INFORMATION
SMPTE 253M (continued)
Table 7. Video Standards Compatible with SMPTE 253M
STANDARD
TITLE
SMPTE 125M
Component Video Signal 4:2:2 Bit-Parallel Digital Interface
SMPTE 267M
Bit Parallel Digital Interface Component Video Signal 4:2:2 16x9 Aspect Ratio
SMPTE 170M
Composite Analog Video Signal NTSC for Studio Applications
The SMPTE 253M standard defines a GBR component set with positive going signals and a maximum peak
level of 700 mV from blanking level. The green signal has a negative-going sync pulse of amplitude 300 mV
from blanking level. The dc offset, as defined by the blanking level of the signal, is 0.0 V
±1.0 V. Figure 12 shows
the waveform of the green channel, onto which the horizontal sync is inserted.
H Blanking rise time
90%
50%
10%
Sync rise time
Horizontal
reference
point
Blanking Start
to H reference
50%
90%
10%
Sync
H reference to Blanking End
50%
Figure 12. SMPTE 253M Line Waveform (green channel)
For this mode, the INS3_INT control should be kept low to enable sync-on-green only and the device is put in
GBR 4:4:4 mode. This corresponds to the GBR with sync-on-green operation mode of Table 1.
Table 8 lists the THS8134 output currents that will produce compliant signals to this standard after proper
termination, together with the required input signals.
Table 8. THS8134 Signals for SMPTE 253M Compliant Operation
LEVEL
AGY
ARPr, ABPb
SYNC
SYNC_T
BLANK
DAC INPUT
LEVEL
(mA)
(V)
(mA)
(V)
SYNC
SYNC_T
BLANK
DAC INPUT
White
26.67
1.000
18.67
0.7000
1
X
1
FFh
Video
Video+8.00
Video+0.3
Video
1
X
1
data
Black
8.00
0.3000
0
1
X
1
00h
Blank
8.00
0.3000
0
1
X
0
xxh
Sync
0
x
xxh
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THS8134ATQFP 制造商:TI 制造商全称:Texas Instruments 功能描述:TRIPLE 8-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
THS8134B 制造商:TI 制造商全称:Texas Instruments 功能描述:TRIPLE 8-BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRI-LEVEL SYNC GENERATION
THS8134BCPHP 功能描述:数字化视频/模拟转换器集成电路 8-BIT 80MSPS TRIPLE DAC RoHS:否 制造商:Texas Instruments 转换器数量:3 输出类型:Current 转换速率:180 MSPs 分辨率:10 bit 接口类型:Parallel 电压参考:Internal or External 积分非线性:- 2.5 LSB, 1.5 LSB 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:HTQFP 封装:Tray
THS8134BCPHP 制造商:Texas Instruments 功能描述:8BIT DAC 80MSPS TRIPLE SMD 8134
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