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The HL9448 is an ultra-broadband bias tee with a maximum insertion loss of 2 dB from 160 kHz to 95 GHz.
These devices block any existing DC signal and allows for the insertion of a DC bias current into a circuit with minimal perturbation of the impedance of a 50 ohm transmission line.
These devices can be used for biasing amplifiers, lasers, optical modulators, and other devices.
Applications include 112 Gbps PAM4 communications systems, optical communication systems, high-speed data systems, level shifting, cascading, and interfacing between devices with incompatible DC operating points.
This part is available as matched pairs or individual units with breakdown voltage of 11 V or 30 V and a variety of connector configurations.
Key Specifications (typical)
| Bandwidth | 160 kHz to 95 GHz (opt. -11) 200 kHz to 95 GHz (opt. -30) |
|---|---|
| Amplitude Match | ± 0.1 dB, f ≤ 95 GHz (opt. -M) |
| Phase Match | ± 4 degrees, f = 40 GHz (opt. -M) |
| Insertion Loss | < 2 dB, nominal, f ≤ 95 GHz |
| Return Loss | > 15 dB, f ≤ 35 GHz > 10 dB, 35 GHz < f ≤ 95 GHz |
| Max Current | 175 mA |
| Connectors | 1.0 mm |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Warranty | 1 year, repair or replacement |
