C2304 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – MMDS / ISM / S-Band Downconverter

Pacific Wireless
2844 Mar Vista Dr. Suite 101
Aptos, CA 95003
TEL [phone]
FAX [phone]
www.pacwireless.com
C2304..
DATA SHEET
MMDS / ISM / S-Band Downconverter
1800 to 4800 MHz Operation
Features
• 1800 to 4800 MHz RF
• 10 to 900 MHz IF
• 26 dB Gain, 4dB Noise Figure
• Single 5V Supply
• 27 dBm Output IP3
• Separate RF AMP, MIXER/LO AMP and IF AMP cells.
• 75 ohm IF output impedance
RF IN
VDD
RF OUT
IF/RF IF IN
Applications
• 2.4 GHz ISM Band Applications
• MMDS Downconverters
• Wireless Bridges
• Wireless Local Loop Systems
• S Band Receivers
• Wireless LANS and WANS
• Point to Multipoint Receivers
• 2.4GHz Consumer Applications
• Bluetooth Applications
• Upconverters
LO IN
IF OUT
IF BIAS
Description
The C2304 is a flexible high intercept and high gain down conversion GaAs MMIC packaged in a compact 14
pin SOIC package. Each sub-circuit is brought out on separate pins to allow for custom filtering on the IF/RF
mixer interstage or custom matching for specific bands. Broadband parallel feedback networks are used on the
gain and LO driver stages and the mixer is a singly balanced, two diode type mixer. The FET source of the IF
amplifier stage (IF BIAS) is accessible for AC bypassing which allows for current reduction with DC source
degeneration. The gain and DC current is broken up as follows: RF AMP gain = 14dB, current = 22 mA; LO
AMP gain = 11dB, current = 28ma; IF AMP gain = 18dB, current = 60 mA, MIXER conversion loss = -6dB.
Simple external matching circuits can be implemented for all ports to achieve VSWR’s <2:1 over moderate
bandwidths of less than 400MHz.
Electrical Characteristics
Typical Specifications for V_DD=5.0V T_A=+25^oC
Minimum and Maximum specifications are guaranteed over RF range 2.5GHz – 2.68GHz
Tested in 50Ω input / 75Ω output system, LO=2.278GHz at 5dBm, using matching circuit shown on page 3.
Parameter
Symbol
Conditions
Min Typ Max Units
Conversion Gain
G
LO=5dBm
24.7
26
27.3
dB
Single Sideband Noise Figure
NF LO=2.278GHz
4
dB
Output IP3
IP3 LO=5dBm
27
dBm
RF Input Return Loss
IF Output Return Loss
S₁₁
50Ω input ref.
S₂₂
75Ω output ref.
-12
dB
-11
dB