MX4140 4:1 Multiplexer for up to 43 Gb/s The MX4140 is a 4:1 high-speed Multiplexer for data rates up to 43 Gb/s. Key features are: - single-ended and differential I/O operation,
- broadband operation,
- adjustable output swing,
- scaleable architecture (e.g. 16:1 MUX),
- single supply voltage.
 At the data inputs, the MX4140 consists of four symmetrical buffers which allow for single-ended as well as differential drive. Furthermore the input buffers provide a high input sensitivity of 50 mVpp (single-ended).
The same holds for the clock input, which runs at half of the frequency of the output data rate (so called half-rate clocking: e.g. 20 GHz clock for 40 Gb/s output data rate). This allows to use reasonably priced RF-synthesizers in the 26.5 GHz band for pattern generation in the 40 Gb/s range.
| Parameter | Min. | Typ. | Max. | Unit | | Junction temperature range | 0 | | 125 | °C | | Ambiente temperature range | 0 | | 50 | °C | | Power supply | -5.0 | -5.5 | -6.0 | V | | Current consumption | | 580 | | mA | | Max. output data rate | | 43 | 45 | Gb/s | | Input amplitude range | 50 | 250 | 500 | mV | | Input Common mode range | -375 | | +250 | mV | | Output amplitude range | 150 | 400 | 1000 | mV |
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