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The 7700ADA-ETSI High Amplitude Distribution Amplifier is a general purpose amplifier with an equalizing function for distributing a wide range of digital and analog signals. It has been designed to distribute pulses and signals up to ±3.5V ITU-T G.703 E12 (Physical/electrical characteristics of hierarchical digital interface at 2048kb/s) signals. The 7700ADA-ETSI features one balanced equalized input with four outputs.
Features
- 75Ω input impedance
- Distribute signals up to ±3.5V to 30MHz
- High common mode range and common mode rejection ratio (CMRR)
- ±5.5dB Gain control range
- Jumper selectable AC or DC coupling
- Cable equalizer adjustment range: 0 to 300m of Belden 8281 or 1694A
- Consistent input impedance if card power is lost
Specifications
Inputs | |
|---|---|
| Standards | Any analog waveform up to ±3.5V and 30MHz bandwidth |
| Connector | 1 BNC per IEC 61169-8 Annex A |
| Common Mode Range | > 6V p-p |
| CMRR | > 60dB to 1kHz |
| Signal Amplitude | Up to ±3.5V |
| Cable Equalizer | 0 to 300m of Belden 8281 or 1694A cable |
| Impedance | 75Ω |
| Coupling | AC or DC (jumper selectable) |
| Return Loss | > 40dB to 10MHz, > 25dB to 30MHz |
Outputs | |
|---|---|
| Number of Outputs | 4 Per Card |
| Connector | BNC per IEC 61169-8 Annex A |
| Output Impedance | 75Ω |
| Gain Control Range | ±6dB |
| Frequency Response | < ±0.05dB no equalization (to 5.5MHz) < ±0.09dB for 5 to 100m Belden 8281 or 1694A (to 5.5MHz) < ±0.15dB for 100 to 300m Belden 8281 or 1694A (to 5.5MHz) |
| Differential Gain | < 0.25% 0 to 300m (for single load) |
| Differential Phase | < 0.19°0 to 300m |
| C/L Gain Inequality | < ±0.1% for all cable lengths |
| C/L Delay | < ±2ns |
| Output Isolation | > 42dB to 10MHz, > 32dB to 30MHz |
| Output Return Loss | > 40dB to 30MHz |
| Noise Performance | < -68dB RMS NTC7 weighting, < -60dB RMS 15kHz to 5.5MHz |
Electrical | |
|---|---|
| Voltage | +12V DC |
| Power | 2.5 watts |
Physical | |
|---|---|
| Number of Slots | 1 |
Ordering Information
| 7700ADA‑ETSI | High Amplitude Analog Distribution Amplifier (1x4) |
|---|
Ordering Options | |
|---|---|
| Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
| Rear Plate Suffix | |
|---|---|
| +SA | Standalone Enclosure Rear Plate |
| +3RU | 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes |
Enclosures | |
|---|---|
| 350FR | Portable Multiframe which holds 7 single slot modules |
| 7700FR-C | 3RU Multiframe which holds 15 single slot modules |
| 7800FR | 3RU Multiframe which holds 15 single slot modules |
| 7801FR | 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules |
| S7701FR | 7700 Series Standalone Enclosure |