RF2449 Datasheet PDF - RF Micro Devices
| Part Number | RF2449 | |
| Description | CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER | |
| Manufacturers | RF Micro Devices | |
| Logo |  |
|
|
There is a preview and RF2449 download ( pdf file ) link at the bottom of this page. Total 14 Pages | ||
Preview 1 page No Preview Available !
Preliminary
8
Typical Applications
• CDMA/FM Cellular Systems
• Supports Dual-Mode CDMA/AMPS
• Supports Dual-Mode CDMA/TACS
RF2449
CDMA/FM LOW NOISE AMPLIFIER/MIXER
900MHZ DOWNCONVERTER
• General Purpose Downconverter
• Commercial and Consumer Systems
• Portable Battery-Powered Equipment
Product Description
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.
Optimum Technology Matching® Applied
Si BJT
!Si Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
ENABLE 1
IP SET 2
IF SEL 3
LNA GAIN 4
MIX GAIN 5
LNA IN 6
VCC1 7
GND1B 8
GND1A 9
LNA OUT 10
11
12
24 LO IN
23 GND2
22 GND2
21 VCC2
20 IF2+
19 IF2-
18 BYPASS
17 IF1-
16 IF1+
15 GND3A
14 MIX IN
13 GND3B
Functional Block Diagram
0.157
0.150
1
0.344
0.337
0.2440
0.2284
8°MAX
0°MIN
0.012
0.008
0.025
0.0098
0.0040
0.0688
0.0532
0.050 0.0098
0.016 0.0075
Package Style: SSOP-24
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
Ordering Information
RF2449
RF2449 PCBA
CDMA/FM Low Noise Amplifier/Mixer 900MHz
Downconverter
Fully Assembled Evaluation Board
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
8
Rev A4 001016
8-75
|
| |
 
Preliminary
Pin Function Description
17
IF1-
Second differential output pin for the first mixer.
18 BYPASS Bypass pin for the LO bias reference.
19
IF2+
First differential output pin for the second mixer.
RF2449
Interface Schematic
See pin 16.
IF2- IF2+
20
IF2-
Second differential output pin for the second mixer.
21
VCC2
VCC pin for the LO circuits.
22
GND2
Ground pin for the LO circuits.
23
GND2
Ground pin for the LO circuits.
24
LO IN
Local oscillator input pin.
See pin 20.
LO IN
8
Rev A4 001016
8-79
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RF2449 electronic component. |
| Information | Total 14 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ RF2449.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| RF2442 | The function is HIGH-LINEARITY LOW NOISE AMPLIFIER. RF Micro Devices | |
| RF2444 | The function is HIGH FREQUENCY LNA/MIXER. RF Micro Devices | |
| RF2449 | The function is CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER. RF Micro Devices | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
RF24
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||