Features
- Attenuator and Phase Shifter Combination
- Surface-Mount Package
- Frequency Range: 1800 MHz to 2000 MHz
- Phase Shift Range: 360 degrees
- Attenuation Range: 20 dB
MPT 1820APS is a combination of an attenuator and a phase shifter in a 18-pin surface-mount package. In this small package, MPT 1820APS has 360 degrees of phase shift range and 20 dB of attenuation range over the frequency range of 1800 MHz to 2000 MHz. Both the attenuator and the phase shifter function independently. It has a very low delay of 2.0 ns, which allows the use of a lower value delay line in feedforward applications. The MPT1820 APS has a delay variation of only ±100 ps which corresponds to the super flatness of phase and amplitude in the application circuits.
Maximum Ratings
| Operating Temperature | -40°C to +85°C |
| RF Signal Input | 20 dBm |
| Attenuation Control | 10 Volts |
| Phase Shifter Control | 10 Volts |
ELECTRICAL CHARACTERISTICS
(frequency: 1800 MHz to 2000 MHz, Tc = +25°C)
| Phase Shift Range | -360 degrees (min) 400 degrees (typ) |
| Attenuation Range | 15 dB (min) 20 dB (typ) |
| Delay | 2 ns (typ) |
| Delay Variation | ±100 ps (typ) |
| VSWR | 1.5 : 1 (typ) |
| Input Third-Order Intercept | >30 dBm |
| Control Voltages: Phase Shift Attenuator |
0 to 8 volts 0 to 8 volts |
PIN ASSIGNMENTS
| PIN# | FUNCTION |
| 1 | RF Input |
| 4 | Phase Shift #1 Control |
| 6 | Phase Shift #2 Control |
| 9 | RF Output |
| 18 | Attenuation Control |
| 13 | Phase Shift #3 Control |
| All Others | Ground |
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