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參數資料
| 型號： | TMC3003KR2C50 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | DAC |
| 英文描述： | TRIPLE, PARALLEL, WORD INPUT LOADING, 0.015 us SETTLING TIME, 10-BIT DAC, PQFP48 |
| 封裝： | LQFP-48 |
| 文件頁數： | 12/12頁 |
| 文件大小： | 68K |
| 代理商： | TMC3003KR2C50 |
PRODUCT SPECIFICATION
TMC3003
9
Applications Discussion
Figure 4 illustrates a typical TMC3003 interface circuit.
In this example, an optional 1.2 Volt bandgap reference is
connected to the VREF output, overriding the internal volt-
age reference source.
Grounding
It is important that the TMC3003 power supply is well-
regulated and free of high-frequency noise. Careful power
supply decoupling will ensure the highest quality video sig-
nals at the output of the circuit. The TMC3003 has separate
analog and digital circuits. To keep digital system noise from
the D/A converter, it is recommended that power
supply voltages (VDD) come from the system analog power
source and all ground connections (GND) be made to the
analog ground plane. Power supply pins should be individu-
ally decoupled at the pin.
Printed Circuit Board Layout
Designing with high-performance mixed-signal circuits
demands printed circuits with ground planes. Overall
system performance is strongly inuenced by the board lay-
out. Capacitive coupling from digital to analog circuits may
result in poor D/A conversion. Consider the following
suggestions when doing the layout:
1.
Keep the critical analog traces (VREF, IREF, COMP,
IOR, IOG, IOB) as short as possible and as far as possi-
ble from all digital signals. The TMC3003 should be
located near the board edge, close to the analog output
connectors.
2.
The power plane for the TMC3003 should be separate
from that which supplies the digital circuitry. A single
power plane should be used for all of the VDD pins. If
the power supply for the TMC3003 is the same as that of
the system's digital circuitry, power to the TMC3003
should be decoupled with 0.1
F and 0.01F capacitors
and isolated with a ferrite bead.
3.
The ground plane should be solid, not cross-hatched.
Connections to the ground plane should have very short
leads.
4.
If the digital power supply has a dedicated power plane
layer, it should not be placed under the TMC3003, the
voltage reference, or the analog outputs. Capacitive cou-
pling of digital power supply noise from this layer to the
TMC3003 and its related analog circuitry can have an
adverse effect on performance.
5.
CLK should be handled carefully. Jitter and noise on
this clock will degrade performance. Terminate the
clock line carefully to eliminate overshoot and ringing.
Related Products
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TMC1175A 40 Msps CMOS 8-bit A/D Converter
TMC1275 40 Msps CMOS 8-bit A/D Converter
TMC22091, TMC22191 Digital Video Encoders
TMC2242A/TMC2243/TMC2246A Video Filters
TMC2249A Digital Mixer
TMC2250A Matrix Multiplier
TMC2272A Colorspace Converter
TMC2302 Image Manipulation Sequencer
TMC2340A Digital Synthesizer
TMC2081 Digital Video Mixer
Figure 4. Typical Interface Circuit
65-3003-04
R9-0
G9-0
B9-0
+5V
0.1
F
10
F
VDD
GND
TMC3003
Triple 10-bit
D/A Converter
CLK
SYNC
BLANK
RED PIXEL
INPUT
GREEN PIXEL
INPUT
BLUE PIXEL
INPUT
CLOCK
SYNC
BLANK
COMP
VREF
RREF
+5V
0.1
F
0.1
F
560
3.3k
LM185-1.2
(Optional)
IOR
IOG
IOB
75
75
75
75
75
75
ZO=75
Red
Green
Blue
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TMC3003KRC30 | 功能描述:數字化視頻/模擬轉換器集成電路 RoHS:否 制造商:Texas Instruments 轉換器數量:3 輸出類型:Current 轉換速率: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 |
| TMC3003KRC30T | 功能描述:視頻 IC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC3003KRC50 | 功能描述:數字化視頻/模擬轉換器集成電路 RoHS:否 制造商:Texas Instruments 轉換器數量:3 輸出類型:Current 轉換速率: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 |
| TMC3003KRC50T | 功能描述:視頻 IC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC3003KRC80 | 功能描述:數字化視頻/模擬轉換器集成電路 RoHS:否 制造商:Texas Instruments 轉換器數量:3 輸出類型:Current 轉換速率: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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