5720 Quad-Notch Filter
The UHF Tunable Quad Notch filter is designed with 4 independent lumped element notch filters in series. The design topology for the filter was selected to achieve constant absolute bandwidth over the 225-512MHz
frequency range. Each notch can be programmed to turn on (active mode) or off (bypass mode). Each notch is tunable over a specific frequency range (or tuning zone). The tuning frequency step for each notch is 100KHz (tuning resolution). The filter is equipped with internal temperature compensation that regulates the Temperature Drift of the Notch Frequency and keeps the notch rejection better than 15dB over the entire operating temperature range.
- Specifications
- Performance
- Mechanical
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Specifications
| Frequency Range | 225 to 512MHz |
| Notch 1 Frequency Range | 225 – 299.9MHz |
| Notch 2 Frequency Range | 300 – 374.9MHz |
| Notch 3 Frequency Range | 375 – 449.9MHz |
| Notch 4 Frequency Range | 450 – 512MHz |
| Notch Rejection at ±2MHz | 15dB min |
| Passband Insertion Loss (beyond ±24MHz) | 3.5dB max * |
| Insertion Loss at ±10MHz | 5dB max * |
| Impedance (Input/Output) | 50 Ω |
| VSWR | 2.5:1 |
| Temperature Range | -40°C to +85°C |
| RF Power Handling | +25dBm |
| IIP3 | 54dBm |
| DC Power | |
| DC Voltage | 3.3 VDC ±0.3 VDC |
| DC Current Max | 45mA |
| Control Interface | SPI Serial Input |
| Tuning Resolution | 100KHz |
| Switching Speed, 90% RF Power (typical) | < 50μsec |
| Dimensions [L x W x H] | 1.70 X 1.80 X 0.35 inches
43.20 X 45.20 X 8.90 mm |
Performance
Mechanical
More Details
