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THS8133 Datasheet(PDF) 9 Page - Texas Instruments |
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THS8133 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 25 page THS8133, THS8133A, THS8133B TRIPLE 10BIT, 80 MSPS VIDEO D/A CONVERTER WITH TRILEVEL SYNC GENERATION SLVS204C − APRIL 1999 − REVISED SEPTEMBER 2000 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 output amplitude control (continued) The exact relationship between RFS and the current drive level on each channel is dependent on the operation mode of the device (see Table 4). In GBR mode, the output drive is identical on the three channels, while in YPbPr mode, a level shift is implemented on Pb and Pr channels. Refer to the application information section for details on the current drive levels in each mode. The device has an internal voltage reference derived from a bandgap reference of 1.35 V. The relationship between the full-scale current drive level and RFS is given by: IFS [A] = α x VREF [V] ÷ RFS [Ω] where α is dependent on the operation mode of the device. Typical operation modes are shown in Table 4 for the nominal RFS value. This value will produce the full-scale current levels mentioned in Table 4 and, when terminated, voltages of standard video levels, as shown in the applications section. The resistor value is variable provided the maximum current level on each of the DAC outputs is not exceeded. Table 4. THS8133 Nominal Full-Scale Currents OPERATION MODE AGY ARPr ABPb OPERATION MODE DESCRIPTION M1 M2_INT INS3_INT IFS (mA) α IFS (mA) α IFS (mA) α GBR with sync-on-green L L L 26.67† 1461/172 18.67‡ 1023/172 18.67 1023/172 GBR with sync-on-all L L H 26.67 1461/172 26.67 1461/172 26.67 1461/172 YPbPr with sync-on-Y (L,H), (H,L) or (HH), ac- L 26.67 1461/172 18.67 1023/172 18.67 1023/172 YPbPr with sync-on-all (L,H), (H,L) or (HH), ac- cording to Tables 1 and 2 H 26.67 1461/172 18.67 1023/172 18.67 1023/172 † IFS = 1461/172 × 1.35/430 ‡ IFS = 1023/172 × 1.35/430 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage: AVDD to AVSS, DVDD to DVSS –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AVDD to DVDD, AVSS to DVSS –0.5 V to 0.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital input voltage range to DVSS −0.5 V to DVDD + 0.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −55 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions over operating free-air temperature range, TA power supply MIN NOM MAX UNIT Supply voltage AVDD 4.75 5 5.25 V Supply voltage DVDD 3 3.3/5 5.25 V |
Similar Part No. - THS8133_07 |
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Similar Description - THS8133_07 |
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