THS8135 Datasheet, PDF (15/23 Pages) Texas Instruments – TRIPLE 10-BIT, 240 MSPS VIDEO DAC WITH TRI-LEVEL SYNC AND VIDEO (ITU-R.BT601) COMPLIANT FULL SCALE RANGE

THS8135
TRIPLE 10-BIT, 240 MSPS VIDEO DAC WITH TRI-LEVEL SYNC AND VIDEO
(ITU-R.BT601)—COMPLIANT FULL SCALE RANGE
SLAS343A – MAY 2001 – REVISED JUNE 2002
Figure 10 shows how to control the SYNC, SYNC_T, and BLANK signals to generate tri-level sync levels and
blanking at the DAC output in video mode. A bi-level (negative) sync can be generated similarly by avoiding the
positive transition on SYNC_T during SYNC low.
Note that on the THS8135 it is required to keep SYNC_T low outside the sync interval in order to avoid entering
the generic DAC mode.
CLK
SYNC
ts
th
DASBTYALNA[C9N:_0^{ÎÎÎÎÎKT] ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtdÎÎÎÎ(D) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtd(DÎÎÎÎ) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtd(DÎÎÎÎÎÎÎ) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎtdÎÎÎÎÎ(DD)(ÎÎÎ0) ÎÎÎD(1)ÎÎÎ}
Value
Corresponds
to D(0)
Figure 10. Sync and Blanking Generation
absolute maximum ratings over operating free-air temperature (unless otherwise noted)^†
Supply voltage: AV_DD to AV_SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 3.6 V
DV_DD to DV_SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 2 V
Supply voltage: AV_DD to DV_DD, AV_SS to DV_SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 to 0.5 V
Digital input voltage range to DV_SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to DV_DD + 0.5 V
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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.
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