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參數(shù)資料
| 型號： | RF2449 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT |
| 封裝： | SSOP-24 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 288K |
| 代理商： | RF2449 |
8-75
8
F
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
!
GaAs MESFET
Si CMOS
SiGe HBT
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
ENABLE
IP SET
IF SEL
LNA GAIN
MIX GAIN
LNA IN
VCC1
GND1B
GND1A
LNA OUT
LO IN
GND2
GND2
VCC2
IF2+
IF2-
BYPASS
IF1-
IF1+
GND3A
MIX IN
GND3B
RF2449
CDMA/FM LOW NOISE AMPLIFIER/MIX ER
900 MHZ DOWNCONVER T ER
CDMA/FM Cellular Systems
Supports Dual-Mode CDMA/AMPS
Supports Dual-Mode CDMA/TACS
General Purpose Downconverter
Commercial and Consumer Systems
Portable Battery-Powered Equipment
The RF2449 is a receiver front-end designed for the
receive section of dual-mode CDMA/FM cellular applica-
tions. It is designed to amplify and downconvert RF sig-
nals, while providing 30dB of stepped gain control range.
Features include digital control of LNA gain, mixer gain,
LNA IIP3, and power down mode. Another feature of the
chip is adjustable IIP3 of the LNA and mixer using an off-
chip current setting resistor. The LNA IIP3 can be digitally
controlled between two levels to reduce current draw in
CDMA standby and other conditions where high IIP3 is
not required. Noise Figure, IP3, and other specs are
designed to be compatible with the IS-98 specification for
CDMA cellular communications. The IC is manufactured
on an advanced Silicon Bipolar process and packaged in
an SSOP-24.
Complete Receiver Front-End
Stepped LNA/Mixer Gain Control
Adjustable LNA/Mixer Bias Current
Adjustable LNA/Mixer IIP3
Digital LNA IIP3 Control
Meets IS-98 IMD and Single Tone
RF2449
CDMA/FM Low Noise Amplifier/Mixer 900MHz
Downconverter
Fully Assembled Evaluation Board
RF2449 PCBA
8
Rev A4 001016
8°MAX
0°MIN
1
0.050
0.016
0.0098
0.0075
0.2440
0.2284
0.025
0.012
0.008
0.0688
0.0532
0.157
0.150
0.0098
0.0040
0.344
0.337
Package S tyle: S S OP-24
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RF2451 | 3V LOW NOISE AMPLIFIER |
| RF2456 | CDMA/FM DOWNCONVERTER |
| RF2459 | 3V PCS DOWNCONVERTER |
| RF2460 | PCS CDMA LOW NOISE AMPLIFIER/MIXER 1500MHZ TO 2200MHZ DOWNCONVERTER |
| RF2461 | CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RF2450 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| RF2451 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:3V LOW NOISE AMPLIFIER |
| RF2454 | 制造商:International Rectifier 功能描述: |
| RF2456 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:CDMA/FM DOWNCONVERTER |
| RF2459 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:3V PCS DOWNCONVERTER |
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