 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Pacific Wireless 2844 Mar Vista Dr. Suite 101 Aptos, CA 95003 TEL (831) 684-2474 FAX (831) 684-2494 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 LO IN IF OUT RF OUT IF/RF IF IN IF BIAS 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 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 VDD=5.0V TA=+25oC Minimum and Maximum specifications are guaranteed over RF range 2.5GHz - 2.68GHz Tested in 50 input / 75 output system, LO=2.278GHz at 5dBm, using matching circuit shown on page 3. Parameter Conversion Gain Single Sideband Noise Figure Output IP3 RF Input Return Loss IF Output Return Loss Symbol G NF IP3 S11 S22 Conditions LO=5dBm LO=2.278GHz LO=5dBm 50 input ref. 75 output ref. Min 24.7 Typ 26 4 27 -12 -11 Max 27.3 Units dB dB dBm dB dB Page 2 C2304 S11 P1dB IDD ISOr-i ISOl-i ISOl-r VSWR JC 50 input ref. LO=5dBm LO=5dBm LO=5dBm LO=5dBm With network on page 3 Junction to GND lead -2 17 110 32 13 24 10:1 75 dBm dBm mA dB dB DB LO Input Return Loss Output Power at 1dB Comp. Operating Drain Current RF OUT to IF/RF Isolation LO IN to IF OUT Isolation LO IN to RF IN Isolation Load VSWR for Input/Output Stability1 Thermal Resistance 1 C/W As a separate circuit the IF AMP is conditionally stable for VSWR < 5:1 over 1.5-3.6GHz Typical Performance Characteristics (Obtained using external circuit shown on p. 3) Conversion Gain vs. Temperature LO = 2.278GHz @ 5dBm +25C +85C -40C 30 29 28 27 26 25 24 28 Conversion Gain and Output IP3 vs. LO Power F1=2.59 GHz and F2=2.596 GHz 26 IP3 (dBm) Gain (dB), 24 Gain (dB) 22 IP3 Conv. gain 20 18 23 22 2.45 2.5 2.55 2.6 2.65 2.7 RF Freq (GHz) 16 -6 -4 -2 0 2 LO Power (dBm) 4 6 8 10 0 IF Output Return Loss in 75 ohms LO = 5dBm RF Input Return Loss and RFOUT to IF/RF Isolation 0 -5 -5 Return Loss (dB) Return Loss , Isolation (dB) RF Input Return loss RFout to RF/IF Isolation -10 -10 -15 -15 -20 -25 -20 -30 -25 200 -35 220 240 260 280 300 320 340 360 380 400 420 2.5 2.55 2.6 2.65 2.7 Freq (MHz) Freq (GHz) Absolute Maximum Ratings Characteristic Drain Voltage Bias Current RF Input Power Power Dissipation Load VSWR Operating Temperature Junction Temperature Storage Temperature Range Symbol VDD1,2 IDS PIN PDISS VSWR TOP TJ TSTG Value +8 200 +18 1.0 10:1 -40 to +85 150 -65 to +150 Units V mA dBm W C C C Caution: Operating beyond specified rating for any of these parameters may cause permanent damage to the device. Specifications Subject to Change Without Notice C2304Spec Rev 6 12/30/99 Page 3 C2304 Application Information VDD IF AMP +5V C9 L2 C8 IF OUT LO IN 1 2 3 4 14 13 L1 12 11 C7 C6 RFIN TRL1 5 6 10 9 8 TRL2 C5 TRL3 VDD +5V C2 7 C3 Part C5 C2 C3 C4,C9 C6 C7 C8 L1 L2 TRL1 TRL2 TRL3 Value/Type 33pF NPO 1pF NPO 0.5pF NPO 0.1uF X7R 1.8pF NPO 270 pF NPO 1000pF X7R 39 nH 560 nH = 30, Z0=110 = 23, Z0=110 = 28, Z0=110 Size 0603 0603 0603 0603 0603 0603 0603 0805 1008 @2.5GHz @2.5GHz @2.5GHz C4 Matching/Diplexing Circuit for 2.5 to 2.68 GHz Operation. Recommended LO IN Port Matching The LO IN port of the C2304 can be matched into 50 ohms with a lossy network. At 3dBm drive, the unmatched port is at Z = 5 -15j ohms at 2.278 GHz. Also of note is that this impedance varies somewhat with the LO drive level. Therefore a narrow band high Q network is not recommended due to inherent manufacturing variation in LO drive available. The simple network below matches this port over an ~ 10% bandwidth. TRL 1 LO Source 50 ohm C1 R1 LO IN Pin 2 C2304 PM2117 Part C1 R1 TRL1 Value/Type 1.8pF NPO 4.3 = 21, Z0=110 Size 0603 0603 @2.5GHz Test Board Layout RF IN LO IN Biasing and Electrical Ground/ Thermal Considerations Pins 3,4,5,10 and 12 should have ground vias straddling both sides of the pin solder contact. This insures good electrical and thermal grounding. If the IF AMP is run at Idss (DC Grounded IF BIAS pin 14), this pin should be grounded as described above. It is recommended that a continuous ground plane be present under the package to lower pin impedance and maintain similarity with the matching environment used in the schematic in the Application Information section. Bias for the IF amplifier is supplied thru IF OUT pin 14. All ports are DC coupled to the IC. Pins 2,6 and 13 should be kept at 0V DC to maintain proper gate voltages. Pin 9 is internally biased at 5V under normal operation and requires an external DC block. VDD C230X VDD IF AMP Material : GETEK .028" Specifications Subject to Change Without Notice IF OUT C2304Spec Rev 6 12/30/99 Page 4 C2304 Package Specifications Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Function IF OUT LO IN GND GND GND RF IN VDD GND RFOUT GND IF/RF GND IF IN IF BIAS Notes: * * Advantages of GaAs MMIC RF Integration - Less Components/Board Space Good Device Matching - No Tweaks - Less Tuning Great power efficiency at low voltage Better Linearity and Distortion Performance Superb Radiation Immunity No Latent or Cummulative ESD effects No Infant Mortality; No "Walking Wounded" No Burn-in Necessary Standard packaging is 14L SOIC tube. Tape and Reel available upon request. All shipments F.O.B. Pacific Wireless Aptos, CA 95003 Part Numbers: Part Number C2304 C2304TR Description 1800 to 4800 Downconverter - Tube 1800 to 4800 Downconverter - Tape and Reel For further information contact: Pacific Wireless 2844 Mar Vista Dr. Suite 101 Aptos, CA 95003 TEL (831) 684-2474 FAX (831) 684-2494 www.pacwireless.com Specifications Subject to Change Without Notice C2304Spec Rev 6 12/30/99 |
Price & Availability of C2304
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |