P35-4800-1 MMIC FOR SART APPLICATIONS Features • • • • • • Integral T/R switch High output power High linearity VCO High reproducibility MMIC technology Low cost Available in Die form or surface mount ceramic package Description The P35-4800 Gallium Arsenide Monolithic Microwave Integrated Circuit operates at X-Band and is designed to provide low cost transmit functions in Search and Rescue Transponders (SARTS) as part of the Global Maritime Distress and Safety System (GMDSS). The High reproducibility of the MMIC means no post assembly alignment is required. The output power of the MMIC has been designed to meet minimum EIRP specifications with low gain antenna and no post amplification. The die is fabricated using MCL's F20 Gallium Arsenide MESFET MMIC process. It is fully protected using Silicon Nitride passivation for excellent performance and reliability. Electrical Performance Ambient temperature = 22 ±3 Deg C , Z O = 50 ohms Min Typ Max Units Frequency range Parameter Condition 9.17 - 9.56 GHz Output power 25.0 26.0 - dBm - - 2.0 dB Output Power variation Pulling figure 14dB Return loss - - ±25 MHz Phase noise @100kHz Offset - -65.0 - dBc/Hz Tuning voltage +Vdc @ Low frequency 0.20 - - V Tuning voltage +Vdc @ High frequency - - 4.0 V Drain voltage Vd - +6.1 - V Tuning profile (Linearity) - - 20 MHz Max tuning sensitivity - 300 - MHz/V 2000 - - MHz/µS - - 500 mA -2.5 - -1 V - - 2 mA Tuning speed Current consumption Negative bias voltage 1 Negative Current Consumption 1. Transmit stand-by mode should be achieved by switching the positive (+8V) supply line to 0V Marconi Caswell Limited, Caswell, Towcester, Northamptonshire, NN12 8EQ Telephone: + 44 (0) 1327 350581 Fax: + 44 (0) 1327 356775 Website: www.caswelltechnology.com Caswell Technology is the trading name of Marconi Caswell Limited which is a wholly owned subsidiary of Marconi plc MCL reserves the right to update or change this specification without notice 463/SM/00044/200 Issue1 A Marconi company P35-4800-1 Parameter Condition Min Typ Max Units Insertion loss Antenna to receiver port - - 2.7 dB Isolation Antenna to receiver port 20 - - dB Tx to Rx Switching time 50% Control to 90% RF - - 500 nS Rx to Tx Switching time 50% Control to 90% RF - - 50 nS Logic level 1 -0.2 - +0.2 V Logic level 0 -6.5 - -8.0 V - - 200 µA Control Current Typical Performance at 22°C Tuning 9.6 Frequency (GHz) 9.5 9.4 9.3 9.2 9.1 9 1.9 2.2 2.5 2.8 3.1 3.4 Tuning Voltage (V) 3.7 4 Absolute maximum Ratings Max supply voltage Max control voltage Chip operating temperature Package operating temperature Storage temperature +8.0V - 8.0V -20°C to +55°C -20°C to +55°C -65°C to +150°C Marconi Caswell Limited, Caswell, Towcester, Northamptonshire, NN12 8EQ Telephone: + 44 (0) 1327 350581 Fax: + 44 (0) 1327 356775 Website: www.caswelltechnology.com Caswell Technology is the trading name of Marconi Caswell Limited which is a wholly owned subsidiary of Marconi plc MCL reserves the right to update or change this specification without notice 463/SM/00044/200 Issue1 A Marconi company P35-4800-1 Notes 1. Transmit stand-by mode should be achieved by switching the positive (+8V) supply line to 0V Package Outline Package Details Pad 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Control Logic Function GND -Vg Negative Bias GND +Vd GND GND Vt Tuning voltage GND Rx GND GND C2 Control 2 GND C1 Control 1 GND GND Antenna port GND +Vd GND Function C1 C2 1 0 Receive Transmit 0 1 Ordering Information P35-4800-1 Ceramic Package Marconi Caswell Limited, Caswell, Towcester, Northamptonshire, NN12 8EQ Telephone: + 44 (0) 1327 350581 Fax: + 44 (0) 1327 356775 Website: www.caswelltechnology.com Caswell Technology is the trading name of Marconi Caswell Limited which is a wholly owned subsidiary of Marconi plc MCL reserves the right to update or change this specification without notice 463/SM/00044/200 Issue1 A Marconi company