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參數(shù)資料
| 型號(hào)： | THS8136PHPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 0.015 us SETTLING TIME, 10-BIT DAC, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁(yè)數(shù)： | 13/18頁(yè) |
| 文件大?。?/td> | 377K |
| 代理商： | THS8136PHPR |
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R
Register
AR
R[9:0]
DAC
G
Register
B
Register
DAC
Configuration
Control
SYNC/BLANK
Control
Bandgap
Reference
G[9:0]
B[9:0]
CLK
M1
M2
AG
AB
COMP
VREF
AV
DD
AV
SS
SYNC
BLANK
FSADJ
SYNC_T
Input
Formatter
DV
DD
DV
SS
SLES236A – NOVEMBER 2008 – REVISED DECEMBER 2010
www.ti.com
DETAILED DESCRIPTION
The THS8136 is a fast well-matched triple DAC with current outputs optimized for graphics and video
applications without sacrificing is usefulness as a generic DAC. The DAC output stages are designed to provide
direct drive of doubly-terminated 75-
loads (37.5 ). The full-scale output current of all three DACs is
determined by a single resistor connecting the FSADJ pin to AVSS (GND). A 3.8-k resistor is suitable for most
applications requiring 700-mV output levels. Additional circuitry and digital input controls for analog sync and
blank level generation are provided for both RGB and YPbPr color spaces. A generic mode of operation is
provided for applications not requiring sync insertion. Figure 1 shows a block diagram of the device.
Figure 1. Functional Block Diagram
Generic DAC Mode Versus Sync Insertion Mode
When configured for sync insertion, the THS8136 provides additional dc bias on the DAC outputs to provide
headroom for negative bi-level sync insertion. Such bias might be undesirable in applications where no analog
sync insertion is required, since it results in additional power consumption and might prevent dc coupling of the
DAC outputs. In such cases, only triple DAC operation without dc bias (i.e., DAC input code 0 corresponding to
0-V output) might be preferred. Generic DAC mode is easily selected by connecting the SYNC and SYNC_T pins
to DVDD (or logic 1) and the M1 and M2 pins to DVSS (or logic 0). BLANK is functional in both generic mode and
sync insertion mode.
4
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): THS8136
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| THS8200IPFPEP | 功能描述:數(shù)字化視頻/模擬轉(zhuǎn)換器集成電路 EP Triple 10B All Format Video DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:3 輸出類型:Current 轉(zhuǎn)換速率:180 MSPs 分辨率:10 bit 接口類型:Parallel 電壓參考:Internal or External 積分非線性:- 2.5 LSB, 1.5 LSB 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:HTQFP 封裝:Tray |
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