- DC-coupled design — supports very low frequency (down to DC) input sources.
- Converts high impedance sources (e.g., oscilloscope probes) to standard 50 Ω RF systems.
- Two separate output gain options for flexible signal leveling.
- Flat frequency response across its intended frequency band.
- Ideal for in-circuit measurements where 50 Ω impedance equipment is used.
- Suitable as a frontend for spectrum analyzers and RF test instruments.
- Compact and robust, ideal for lab benches and measurement setups.
- Provides buffered outputs to prevent loading of sensitive circuits.
TBLNA-110M-HZ
DC-coupled Impedance Converter
The Tekbox TBLNA-110M-HZ is a DC-coupled impedance converter that converts high-impedance signal sources (up to 1 MΩ) to a 50 Ω output with flat response from DC up to 110 MHz. It provides two separate outputs with selectable gain levels, making it ideal for in-circuit measurements with standard oscilloscope probes and as a high-impedance frontend for RF equipment with 50 Ω inputs, such as spectrum analyzers and test gear
Features
Key capabilities and advantages
Specification
Technical specifications and parameters
| Flat frequency range | DC – 110 MHz, typ. |
| 3 dB frequency range | DC – 500 MHz, typ. |
| Usable frequency range | DC – 1 GHz |
| Gain | 0 dB, 20 dB |
| RF-connectors | BNC-female |
| Input impedance | 1 MΩ // 20 pF |
| Input Noise Voltage | >2 MHz: typ. <10 nV/√Hz; for details see chapter 3.3 |
| Maximum input level for linear output | |
| 150 mVpp for output saturation at the 20 dB gain output, 1 | 1 |
| 1.5 Vpp for output saturation at the 20 dB gain output, 1 | 10 |
| 1.5Vpp for output saturation at the 0 dB gain output, 1 | 1 |
| 15Vpp for output saturation at the 0 dB gain output, 1 | 10 |
| Maximum ratings | 50Vpp AC |
| Output impedance | 50 Ω, detailed plots in chapter 3.2 |
| Output return loss | > 25 dB, detailed plots in chapter 3.2 |
| P1dBout | |
| IP3out | |
| DC offset | < 10mV output offset |
| Power-connector | Coaxial power socket; 2 mm / 5.5 mm; positive center conductor |
| Indicator LEDs | Power ON, Power Good |
| Operating voltage | 12 V; external power supply 100 V – 240 V, 50/60 Hz |
| Current consumption | 275 mA |
| Operating temperature range | -20°C to +50°C |
| Dimensions | W 135 mm x H 40 mm x L 110 mm; |
| Weight | 350 g |
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