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參數資料
| 型號： | RF2485 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | VHF QUADRATURE MODULATOR |
| 中文描述： | 200 MHz - 600 MHz RF/MICROWAVE I/Q MODULATOR |
| 封裝： | SOIC-14 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 79K |
| 代理商： | RF2485 |
5-55
5
M
U
Preliminary
Produc t Desc ription
Ordering Information
Typic al Applic ations
Features
Func tional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching Applied
Si BJT
GaAs HBT
Si Bi-CMOS
SiGe HBT
GaAs MESFET
Si CMOS
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VDD2
VDD1
NC
I SIG
I REF
Q REF
Q SIG
RF OUT
GND2
GND
GND
GND1
PHASE
LO IN
POWER
CONTROL
Σ
+45°
-45°
RF2485
V HF QUADR AT UR E MODULAT OR
Digital and Spread-Spectrum Systems
GMSK, QPSK, DQPSK, QAM Modulation
Private Mobile Radio and TETRA systems
AM, SSB, DSB Modulation
Image-Reject Upconverters
The RF2485 is a monolithic integrated universal modula-
tion system capable of generating modulated AM, PM, or
compound carriers in the VHF and UHF frequency range.
The IC contains all of the required components to imple-
ment the modulation function including differential amplifi-
ers for the baseband inputs, a 90° hybrid phase splitter,
limiting LO amplifiers, two balanced mixers, a combining
amplifier, and an output RF amplifier which will drive a
50
load. Component matching, which can only be
accomplished with monolithic construction, is used to full
advantage to obtain excellent amplitude balance and high
phase accuracy. The unit features low power consump-
tion, single power supply operation and adjustment free
operation with no external parts required to operate the
part as specified.
Single 5V Power Supply
Low Power
Excellent Amplitude and Phase Balance
Extremely Low Broadband Noise Floor
200MHz to 600MHz Operation
RF2485
RF2485 PCBA
VHF Quadrature Modulator
Fully Assembled Evaluation Board
5
Rev A3 010820
0.156
0.148
0.059
0.057
0.252
0.236
0.010
0.004
.018
.014
8° MAX
0° MIN
0.0500
0.0164
0.010
0.007
0.347
0.339
0.050
Package Style: S OIC-14
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PDF描述 |
|---|---|
| RF2486 | PCS LOW NOISE AMPLIFIER/MIXER |
| RF2488 | MULTI-MODE DUAL-BAND LNA MIXER |
| RF2489 | DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER |
| RF2492 | DUAL-BAND LOW NOISE AMPLIFIER/MIXER |
| RF2494 | HIGH FREQUENCY LNA/MIXER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| RF2486 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:PCS LOW NOISE AMPLIFIER/MIXER |
| RF2487-000 | 制造商:TE Connectivity 功能描述:MINISMDC075F/33-2 - Tape and Reel |
| RF2488 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:MULTI-MODE DUAL-BAND LNA MIXER |
| RF2488-000 | 制造商:TE Connectivity 功能描述:TRF250-090UT - Bag |
| RF2489 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:DUAL-BAND/TRI-MODE CDMA LOW NOISE AMPLIFIER/MIXER |
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