RF2444, RF2444FR, RF2449 Selling Leads, Datasheet
MFG:RF Package Cooled:SOP D/C:194
RF2444, RF2444FR, RF2449 Datasheet download
Part Number: RF2444
MFG: RF
Package Cooled: SOP
D/C: 194
RF2444, RF2444FR, RF2449
- Table of contents:
Info of RF2444
Info of RF2444FR
Info of RF2449
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About RF2444
PDF/DataSheet Download
Datasheet: RF2444
File Size: 237276 KB
Manufacturer: RFMD [RF Micro Devices]
Download : Click here to Download
About RF2
PDF/DataSheet Download
Datasheet: RF2
File Size: 756593 KB
Manufacturer: Willow Technologies Ltd
Download : Click here to Download
About RF2449
PDF/DataSheet Download
Datasheet: RF2449
File Size: 301924 KB
Manufacturer: RFMD [RF Micro Devices]
Download : Click here to Download
RF2444 General Description
The RF2444 is a monolithic integrated UHF receiver front end suitable for 2.4GHz ISM band applications. The IC contains all of the required components to implement the RF functions of the receiver except for the passive filtering and LO generation. It contains an LNA (low-noise amplifier), a second RF amplifier and a doubly balanced mixer. The output of the LNA is made available as an output to permit the insertion of a bandpass filter between the LNA and the RF/Mixer section. The mixer outputs can be selectively disabled to allow for the IF filter to be used in the transmit mode.
RF2444 Maximum Ratings
|
Parameter |
Rating |
Unit |
| Supply Voltage |
-0.5 to 3.6 |
VDC |
| Input RF Power |
+6 |
dBm |
| Operating Ambient Temperature |
-40 to +85 |
|
| Storage Temperature |
-60 to +150 |
|
| Moisture Sensitivity | JEDEC Level 5 @ 220 |
RF2444 Features
• Single 2.7V to 3.6V Power Supply
• 2400MHz to 2500MHz Operation
• Two Gain Settings: 28dB or 12dB
• 4.5dB Cascaded NF, High Gain Mode
• 20mA DC Current Consumption
• Input IP3: -23dBm or -8dBm
• 2400MHz to 2500MHz Operation
• Two Gain Settings: 28dB or 12dB
• 4.5dB Cascaded NF, High Gain Mode
• 20mA DC Current Consumption
• Input IP3: -23dBm or -8dBm
RF2444 Typical Application
• WLAN or Wireless Local Loop
• Digital Communication Systems
• Spread-Spectrum Communication Systems
• Part of 2.4GHz Chipset
• Portable Battery-Powered Equipment
• UHF Digital and Analog Receivers
• Digital Communication Systems
• Spread-Spectrum Communication Systems
• Part of 2.4GHz Chipset
• Portable Battery-Powered Equipment
• UHF Digital and Analog Receivers
RF2449 General Description
The RF2449 is a receiver front-end designed for the receive section of dual-mode CDMA/FM cellular applications.It is designed to amplify and downconvert RF signals, while p roviding 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 offchip 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.
RF2449 Maximum Ratings
|
Parameter |
Rating |
Unit |
| Supply Voltage |
-0.5 to +5.5 |
VDC |
| Input RF Levels |
+6 |
dBm |
| Operating Ambient Temperature |
-40 to +85 |
|
| Storage Temperature |
-40 to +150 |
RF2449 Features
• 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
• 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 Typical Application
• 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
• Supports Dual-Mode CDMA/AMPS
• Supports Dual-Mode CDMA/TACS
• General Purpose Downconverter
• Commercial and Consumer Systems
• Portable Battery-Powered Equipment
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