Model: PSAT-2500-11B-CD-1

 

PMI Model PSAT-2500-11B-CD-1 is a 2.5 GHz, 11 Bit Digitally Controlled Attenuator / Analog Phase Shifter assembly having the capability for phase shifting from 0 to 360° with an attenuation range of 60 dB minimum.  This model has insertion loss of 10 dB maximum and a VSWR of 1.5:1 maximum into 50 ohms.  The phase shift speed is 50nsec maximum while the attenuation speed is 1 uµs maximum.  This model is designed to offer high levels of phase shift accuracy and attenuation accuracy over time and over an operating temperature range of 0 °C to +70 °C.  This device is offered in a small housing that measures 3.0" x 2.5" x 0.85". 


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Product Feature

Test Report

 

Specifications:

Center Frequency 2500 MHz
Bandwidth-  
   3 dB 220 MHz
   0.5 dB 55 MHz
   0.1 dB 10 MHz
Phase Shifter 360 Degrees Min (-4 V to -9 V)
Attenuation Range 60 dB Min
Input Level -100 to 0 dBm
RF Impedance 50 Ohms
VSWR (In / Out) 1.5:1 Max
Insertion Loss 10dB Max
Spurious 60dBc Harmonic & Non-Harmonic
Phase Control Speed 50 ns Max (Measured from 50% TTL to within 10° of final value)
Phase Control Monotonic, Analog, -3 to -15 Volts
Repeatability Deviation from vendor vs. supply voltage characteristics shall be less than 2°
Max / Min Slope Ratio 4
Minimum Voltage Change for 360° 5 Volts
Attenuation Control Speed 1usec Maximum (50% TTL to within 0.1 dB final attenuation over the 0 to 45 dB range)
Attenuation Control Monotonic, 11-Bit Parallel TTL
Attenuation Step Size 0.0625dB (60dB = 960 Digital)
Attenuation Accuracy at Center Frequency ±0.5 dB to 30 dB, ±1.0  dB from 30 dB to 50 dB,
Relative Attenuation Accuracy up to 1dB Accurate to within 0.1 dB
PM / AM 0.8dB peak-peak Maximum over 360°
AM / PM Peak-Peak phase shift at constant phase setting at center frequency (2500 MHz) shall be less than 4.0°, attenuation 0 to 40 dB
Phase vs. Frequency Variation over 0.88% Bandwidth (22 MHz) ±1°
Phase vs. Frequency Variation over 2.2% Bandwidth (55 MHz) ±3°
Phase vs. Frequency Variation over 8.8% Bandwidth (220 MHz) ±7°
Deviation from Linear over 2.2% Bandwidth (55 MHz) ±1°
Deviation from Linear over 8.8% Bandwidth (55 MHz) ±5°
Absolute Attenuation Temperature Stability Variation at any setting < 1.25 dB with respect to the value at 25 °C
Relative Attenuation Temperature Stability Variation between any two devices (Over all relative attenuation and phase settings) shall be less than 1.4 dB with respect to the value at 25°C and less than 0.5 dB over any 20°C change
Absolute Phase Temperature Stability Variation at any setting < 8° with respect to the value at 2 5°C
Relative Phase Temperature Stability Variation between any two devices (Over all relative attenuation and phase settings) shall be less than 4° with respect to the value at 25 °C and less than 2° over any 20 °C change
Logic Bits 11 (See Pin Function Table)
LSB 0.03125 dB
DC Power

+15V @ 150 mA Maximum

-15V @ 60 mA Maximum

Control Connector 15 Pin D-Sub Male (mating Connector Supplied)
RF Connectors SMA Female (Input) and SMA Male (Output)
Size 3.0 x 2.5 x 0.85
Finish Painted Gray

Environmental Ratings:

Temperature:  -0 ºC to +70 ºC Operating
 -65 ºC to +125 ºC Non-Operating
 Humidity:  MIL-STD-202F, Method 103B Cond. B
 Shock:  MIL-STD-202F, Method 213B Cond. B
 Vibration:  MIL-STD-202F, Method 204D Cond. B
 Altitude:  MIL-STD-202F, Method 105C Cond. B
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A