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| 型号： | THS8134BCPHP |
| 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： | 27/27页 |
| 文件大小： | 553K |
| 代理商： | THS8134BCPHP |
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THS8134, THS8134A, THS8134B
TRIPLE 8BIT, 80 MSPS VIDEO D/A CONVERTER
WITH TRILEVEL SYNC GENERATION
SLVS205D MAY 1999 REVISED MARCH 2000
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
blanking generation (continued)
Value
Corresponds
to D(0)
CLK
th
ts
D(0)
td(D)
SYNC
SYNC_T
BLANK
RPr[70]
GY[70]
BPb[70]
Figure 6. Sync and Blanking Generation
DAC operation
The analog output drivers generate a current of which the drive level can be user-modified by choice of an
appropriate resistor value RFS, connected to the FSADJ terminal. Refer to the paragraph on output amplitude
control for details on how the output drive is affected by the operation mode of the device.
All current sources derive their amplitudes from an internal generator that produces a 1.35 V reference level.
All current source amplitudes (video, blanking, sync) also come from this reference so that the relative
amplitudes of sync/blank/video are always equal to their nominal relationships. For increased stability on the
absolute levels, the user can overdrive the reference by directly driving the VREF input terminal.
output amplitude control
The current drive on all three output channels and on the internal sync generator is controlled by a resistor RFS
that must be connected between FSADJ and AVSS. In all operation modes the relative amplitudes of the current
drivers are maintained irrespective of the RFS value, as long as a maximum current drive capability is not
exceeded.
The sync generator is composed of different current sources that are internally routed to a corresponding DAC
output. 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-green) if INS3_INT = L or all three channel outputs INS3_INT = H. In either
case the relative current levels, as defined below, are maintained.
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PDF描述 |
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| THS8134CPHP | PARALLEL, 8 BITS INPUT LOADING, 0.005 us SETTLING TIME, 8-BIT DAC, PQFP48 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS8134BCPHP | 制造商:Texas Instruments 功能描述:8BIT DAC 80MSPS TRIPLE SMD 8134 |
| THS8134BCPHPG4 | 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 |
| THS8134BTQFP | 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 |
| THS8134CPHP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS8134TQFP | 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 |
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