Digital Controlled Phase Shifters
Pulsar's Digital Controlled Phase shifters utilize PIN diodes and delay lines to produce the necessary phase requirements. These digital phase shifters use switched lines to obtain temperature stable phase shift. The phase is specified at the center frequency ± 3.0% and is proportional to frequency over the entire band.
|
Frequency Range (GHz) |
Insertion Loss (dB) max. |
Number of Bits |
Least Significant Bit (LSB) |
Phase Range |
VSWR (dB) max. |
Connector Type |
P/N | |
|---|---|---|---|---|---|---|---|---|
| Min | Max | |||||||
| 0.05 | 0.06 | 5.0 | 8 | 1.4° | 360° | 1.50:1 | SMA | DST-15-480/1S Add to RFQ |
| 0.25 | 0.50 | 6.0 | 8 | 1.4° | 360° | 1.80:1 | SMA | DST-10-480/1S Add to RFQ |
| 0.50 | 1.00 | 4.5 | 8 | 1.4° | 360° | 1.80:1 | SMA | DST-11-480/1S Add to RFQ |
| 1.25 | 1.35 | 3.5 | 8 | 1.4° | 360° | 1.80:1 | SMA | DST-14-480/1S Add to RFQ |
| 1.00 | 2.00 | 4.5 | 8 | 1.4° | 360° | 1.80:1 | SMA | DST-12-480/1S Add to RFQ |
| 2.00 | 4.00 | 6.0 | 8 | 1.4° | 360° | 1.80:1 | SMA | DST-13-480/1S Add to RFQ |
- Phase is ± 3.0% at center frequency.
- Other frequency bands and resolution ranges available.
General Specifications:
-
Operating Power: 20 dBm/100 mw max.
Power Handling: +30 dBm/1 watt max.
Switching Time: 500 nsec max.
Control Logic: TTL
Power supply: ± 5 Vdc @ ± 300 mA, Typical.
Temperature: -25° C to +80° C
RF Connectors: SMA Female
Bi-directional. Either J1 or J2 can be used as input.
J3 - DC Connector (DC Power & Logic): - ITT Cannon, 15 Pin
- Pin 01 = Phase: 1.4 (LSB)
- Pin 02 = Phase: 2.8
- Pin 03 = Phase: 5.6
- Pin 04 = Phase: 11.25
- Pin 05 = Phase: 22.5
- Pin 06 = Phase: 45
- Pin 07 = Phase: 90
- Pin 08 = Phase: 180
- Pin 09 = N/C
- Pin 10 = N/C
- Pin 11 = N/C
- Pin 12 = N/C
- Pin 13 = +5 Vdc
- Pin 14 = -5 Vdc
- Pin 15 = GND
| Truth Table | ||||||||
|---|---|---|---|---|---|---|---|---|
| Control Voltage TTL Input for 8 Bits Resolution | Phase Shift (degrees) RFin - RFout |
|||||||
| Bit 1 | Bit 2 | Bit 3 | Bit 4 | Bit 5 | Bit 6 | Bit 7 | Bit 8 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Reference |
| 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1.40 |
| 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2.81 |
| 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 5.62 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 11.25 |
| 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 22.50 |
| 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 45.00 |
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 90.00 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 180.00 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 358.60 |
Combination of the above states will provide a phase shift approximately equal
to the sum of the selected states.