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參數(shù)資料
| 型號： | TMC1103KLC50 |
| 廠商： | RAYTHEON SEMICONDUCTOR |
| 元件分類： | ADC |
| 英文描述： | Triple Video A/D Converter with Clamps 8-Bit, 50Msps |
| 中文描述： | 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP80 |
| 封裝： | MQFP-80 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 86K |
| 代理商： | TMC1103KLC50 |
TMC1103
PRODUCT SPECIFICATION
12
Figure 10. Typical Interface Circuit – High Performance
+
–
1k
+
–
+
–
+
–
LM185-1.2
1k
1k
1k
10k
1k
75
100
20
+5V
+5V
+5V
GREEN
Video
Input
GREEN
Digital
Video
Output
BLUE
Digital
Video
Output
RED
Digital
Video
Output
Pixel
Clock
0.1
μ
F
65-1103-09
Gain Adjust
1k
1k
10k
75
100
BLUE
Video
Input
1k
1k
10k
75
100
RED
Video
Input
2k
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
VCLAMP
CLAMP
0.1
μ
F
VDDA
RTA
RTB
RTC
RBA
RBB
RBC
VINA
VCLPA
CLPA
TMC1103
VCLPB
CLPB
VCLPC
CLPC
VINB
VINC
AGND
DGND
VDD
VDDP
DA7-0
OEA
CLKA
DB7-0
OEB
CLKB
DC7-0
OEC
CLKC
0.1
μ
F
Application Notes
The circuit in Figure 10 employs a band-gap reference to
generate a variable R
TX
reference voltages for the TMC1103
as well as a bias voltage to offset the wideband input amplifi-
ers to mid-range. The operational amplifier in the reference
circuitry is a standard 741-type.
The voltage reference at R
TX
can be adjusted from 0.0 to 2.4
volts while R
BX
is grounded. Schottky diodes can be used at
V
INX
to restrict the wideband amplifier output to between
-0.3V and V
DD
+0.3V. Diode protection is good practice to
limit the analog input voltage at V
INX
to the safe operating
range.
Grounding
The TMC1103 has separate analog and digital circuits. To
keep digital system noise from the A/D converter, it is rec-
ommended that power supply voltages (V
DD
and V
DDA
)
come from the same source, and that ground connections
(D
GND
and A
GND
) be made to the analog ground plane, and
as close as possible to the device pins. Power supply pins
should be individually decoupled at the pin. The digital cir-
cuitry that gets its input from the TMC1103 should be
referred to the system digital ground plane.
Printed Circuit Board Layout
Designing with high performance mixed-signal circuits
demands printed circuits with ground planes. Overall system
performance is strongly influenced by the board layout.
Capacitive coupling from digital to analog circuits may
result in poor A/D conversion. Consider the following sug-
gestions when doing the layout:
1.
Keep the critical analog traces (V
N
, R
TX
, R
BX
) as short
as possible and as far as possible from all digital signals.
The TMC1103 should be located close to the analog
input connectors.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMC1103KLC50_Q | 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 a/D Converter Tripple Video 8Bit RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1103KLC50T | 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TMC1103X50 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Triple Video A/D Converter with Clamps 8-Bit, 50Msps |
| TMC1173AM7C05 | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| TMC1173AM7C20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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