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參數資料
| 型號： | THS8133BCPHPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 0.005 us SETTLING TIME, 10-BIT DAC, PQFP48 |
| 封裝： | PLASTIC, HTQFP-48 |
| 文件頁數： | 19/25頁 |
| 文件大小： | 549K |
| 代理商： | THS8133BCPHPG4 |
THS8133, THS8133A, THS8133B
TRIPLE 10BIT, 80 MSPS VIDEO D/A CONVERTER
WITH TRILEVEL SYNC GENERATION
SLVS204C APRIL 1999 REVISED SEPTEMBER 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
Terminal Functions (Continued)
TERMINAL
I/O
DESCRIPTION
NAME
PIN
I/O
DESCRIPTION
RPr0PRr9
1322
I
Red or Pr pixel data input bus. Index 0 denotes the least significant bit. Refer to functional description for different
operating modes
SYNC
24
I
Sync control input, active low. A rising edge on CLK latches SYNC. When asserted, only the AGY output
(INS3_INT=L, see terminal M2) or ARPr, AGY and ABPb outputs (INS3_INT=H, see terminal M2) are driven to
the sync level, irrespective of the values on the data or BLANK inputs. Consequently, SYNC should remain low
for the whole duration of sync, which is in the case of a tri-level sync both the negative and positive portion (see
Figure 7).
SYNC_T
25
I
Sync tri-level control, active high. A rising edge on CLK latches SYNC_T. When asserted, a positive sync (higher
than blanking level) is generated when SYNC is low. When disabled, a negative sync (lower than blanking level)
is generated when SYNC is low. When generating a tri-level (negative-to-positive) sync, a L
→ H transition on
this signal positions the start of the positive transition. See Figure 6 for timing control.
The value on SYNC_T is ignored when SYNC is not asserted (high).
VREF
37
I/O
Voltage reference for DACs. An internal voltage reference of nominally 1.35 V is provided, which requires an
external 0.1
F ceramic capacitor between VREF and AVSS. However, the internal reference can be overdriven
by an externally supplied reference voltage.
R/Pr
Register
ARPr
RPr[9:0]
DAC
G/Y
Register
B/Pb
Register
DAC
DVDD
Configuration
Control
SYNC/BLANK
Control
Bandgap
Reference
GY[9:0]
BPb[9:0]
CLK
M1
M2
AGY
ABPb
DVSS
COMP
VREF
AVDD AVSS
SYNC
BLANK
FSADJ
SYNC_T
Input
Formatter
Figure 1. THS8133 Block Diagram
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相關代理商/技術參數 |
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| THS8133BEVM | 制造商:Texas Instruments 功能描述:THS8133B TRIPLE 10BIT 80MSPS VID DAC EVM - Bulk |
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