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參數(shù)資料
| 型號： | DC1370A-L |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 11/34頁 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 25MSPS LTC2256-12 |
| 軟件下載： | QuikEval II System |
| 設(shè)計資源： | DC1370A Design Files |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
| 相關(guān)產(chǎn)品： | DC718C-ND - DEMO QUIKEVAL-II DATA |
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LTC2258-12
LTC2257-12/LTC2256-12
19
225812fd
For more information www.linear.com/LTC2258-12
applicaTions inForMaTion
Figure 5. Recommended Front-End Circuit for Input
Frequencies from 170MHz to 270MHz
Figure 6. Recommended Front-End Circuit for Input
Frequencies Above 270MHz
INPUT DRIVE CIRCUITS
Input filtering
If possible, there should be an RC lowpass filter right at
the analog inputs. This lowpass filter isolates the drive
circuitry from the A/D sample-and-hold switching, and
alsolimitswidebandnoisefromthedrivecircuitry.Figure 3
shows an example of an input RC filter. The RC component
values should be chosen based on the application’s input
frequency.
Figure 4. Recommended Front-End Circuit for Input
Frequencies from 70MHz to 170MHz
Transformer Coupled Circuits
Figure 3 shows the analog input being driven by an RF
transformer with a center-tapped secondary. The center
tap is biased with VCM, setting the A/D input at its optimal
DC level. At higher input frequencies a transmission line
balun transformer (Figures 4 to 6) has better balance,
resulting in lower A/D distortion.
25
50
0.1F
AIN+
AIN–
1.8pF
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T2
T1: MA/COM MABA-007159-000000
T2: COILCRAFT WBC1-1LB
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
225812 F05
LTC2258-12
25
50
0.1F
AIN+
AIN–
4.7pF
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T2
T1: MA/COM MABA-007159-000000
T2: MA/COM MABAES0060
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
225812 F04
LTC2258-12
25
50
0.1F
2.7nH
AIN+
AIN–
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T1: MA/COM ETC1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
225812 F06
LTC2258-12
25
50
0.1F
AIN+
AIN–
12pF
0.1F
VCM
LTC2258-12
ANALOG
INPUT
0.1F
T1
1:1
T1: MA/COM MABAES0060
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
225812 F03
Figure 3. Analog Input Circuit Using a Transformer.
Recommended for Input Frequencies from 5MHz to 70MHz
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相關(guān)代理商/技術(shù)參數(shù) |
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| DC1370A-M | 制造商:Linear Technology 功能描述:14BIT ADC Eval Brd, Rq. DC718 制造商:Linear Technology 功能描述:14BIT ADC Eval Brd, Rq. DC718; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2262-14; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide; Features:Also works with requred DC718 |
| DC1370A-N | 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC718 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC718; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2262-12; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide; Features:Also works with requred DC718 |
| DC1371A | 功能描述:BOARD USB DATA ACQUISITION HS RoHS:是 類別:未定義的類別 >> 其它 系列:* 標(biāo)準(zhǔn)包裝:1 系列:* 其它名稱:MS305720A |
| DC1379A | 功能描述:BOARD EVAL LTM8025 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:µModule® 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓撲結(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
| DC1379B | 制造商:Linear Technology 功能描述:BOARD EVAL LTM8025 制造商:Linear Technology 功能描述:EVAL BOARD, LTM8025 BUCK REGULATOR, Silicon Manufacturer:Linear Technology, Silicon Core Number:LTM8025, Kit Application Type:Power Management - Voltage Regulator, Application Sub Type:Synchronous Buck Regulator , RoHS Compliant: NA |
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