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參數(shù)資料
| 型號(hào)： | CV221-2A_07 |
| 英文描述： | 1.9 - 2.7 GHz Dual-Branch Downconverter |
| 中文描述： | 1月9日至2月7日GHz雙科變頻器 |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | CV221-2A_07 |
Specifications and information are subject to change without notice
WJ Communications, Inc
Phone 1-800-WJ1-4401
FAX: 408-577-6621
e-mail: sales@wj.com
Web site: www.wj.com
Page 3 of 5 June 2007
CV221-2A
1.9 – 2.7 GHz Dual-Branch Downconverter
Application Circuit: IF = 240 MHz (CV221-2APCB240)
RF = 1900 – 2700 MHz, IF = 240 MHz
PCB Layout
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
Bill of Materials
Ref. Desig.
R1
(1)
R2, R3, R4, L3, L7
L10, L11
R6, R7
C1, C5, C10, C15
C4, C11
C6, C12, C14
C7, C13
L1
L4, L8
(2)
L5, L9
C2, C3, C8, C9, C16
C17, C19, C20, C21
C22, L2, L6
U1
Component
13
Ω
chip resistor
0
Ω
chip resistor
Size
0805
0603
8.2
Ω
chip resistor
1000 pF chip capacitor
3 pF chip capacitor
.018
μ
F chip capacitor
100 pF chip capacitor
120 nH chip inductor
82 nH chip inductor
220 nH chip inductor
0603
0603
0603
0603
0603
0603
0603
0805
Shown on silkscreen, but
not used in actual circuit.
CV221-2A WJ Converter
QFN
Notes:
1.
The R1 resistor can be modified for the CV221-2A to draw less current. Changing it from 13 to 18
Ω
is expected to have the converter draw 17mA
less current so that the converter will draw about 300mA typically under LO drive, while degrading the IIP3 performance by 0.5 dB.
The values shown above have the IF tuned at 240 MHz and will affect the optimal performance of the converter. For other frequencies, these
components need to be modified as follows:
2.
IF Amplifier Matching
75
100
15 pF
8.2 pF 8.2 pF 5.6 pF 5.6 pF
390 nH 220 nH 220 nH 180 nH 150 nH 150 nH 120 nH 110 nH 82 nH
Ref. Desig.
C4, C11
L4, L8
50
70
120
140
155
180
3.9pF
240
3.0 pF
18 pF
15 pF
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|---|---|
| CV221-2AF | 功能描述:上下轉(zhuǎn)換器 1900-2700MHz RF 65-300MHz IF RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| CV221-2APCB240 | 功能描述:射頻開發(fā)工具 1900-2200MHz RF Brd 240MHz IF RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| CV2-2-H | 制造商:Alpha 3 Manufacturing 功能描述: |
| CV230K05T | 制造商:SEI Stackpole Electronics Inc 功能描述:VAR 230VAC 300VDC 400A 360V TH - Tape and Reel 制造商:SEI Stackpole Electronics Inc 功能描述:Var MOV 230VAC/300VDC 400A 360V Radial T/R |
| CV230K07T | 制造商:SEI Stackpole Electronics Inc 功能描述:- Tape and Reel 制造商:SEI Stackpole Electronics Inc 功能描述:Var MOV 230VAC/300VDC 1200A 360V Radial T/R |
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