N1078A DCA-M Specifications
N1078A DCA-M specifications and characteristics apply when the temperature is within the range noted below. Use the DCA-M's rear panel USB Type B connector to connect the DCA-M to a DCA-X mainframe or to N1010A FlexDCA on a PC. The DCA-M is connected as a USB 2.0 device. For additional information concerning the required firmware versions refer to DCA-M compatibility with N1000A and 86100D.
All specifications describe warranted performance over the temperature range +10° C to + 40° C (unless otherwise noted). The specifications are applicable after the temperature is stabilized, which occurs after 1 hour of continuous operation and while module calibration is valid. Many performance parameters are enhanced through frequent, simple user calibrations.
Specifications describe warranted performance. Characteristics provide useful, nonwarranted information about the functions and performance of the instrument. Characteristics are printed in green italics.
Factory Calibration Cycle. For optimum performance, the instrument should have a complete verification of specifications once every 12 months.
Nominal Value indicates the expected, but not warranted, value of the parameter.
N1078A electrical data input (+/–)
| Item | Specification |
|---|---|
| Data Rate Input Range | Description |
| Option 264 | 125 MBd to 64 GBd, 125 MBd to 65.6 GBd (characteristic) |
| Option 253 | 53 GBd to 58 GBd |
| Option 232 | 125 MBd to 32 GBd, 125 MBd to 32.8 GBd (characteristic) |
| Option 225 | 25 GBd to 29 GBd |
| Option 216 | 125 MBd to 16 GBd, 125 MBd to 16.4 GBd (characteristic) |
| Minimum input level to acquire lock (NRZ & PAM4, single-ended, open eye) | Description |
| Option 264 | 30 mV pp (rate ≤ 53.125 GBd) 60 mV pp (rate > 53.125 GBd) 10 mV pp at 10.3125 GBd (characteristic) 10 mV pp at 26.56 GBd (characteristic) 20 mV pp at 53.125 GBd (characteristic) 25 mV pp at 56 GBd (characteristic) 50 mV pp at 64 GBd (characteristic) |
| Option 253 | 60 mV pp 20 mV pp at 53.125 GBd (characteristic) 25 mV pp at 56 GBd (characteristic) |
| Option 232 | 30 mV pp 10 mV pp at 10.3125 GBd (characteristic) 10 mV pp at 26.56 GBd (characteristic) |
| Option 225 | 30 mV pp 10 mV pp at 26.56 GBd (characteristic) |
| Option 216 | 30 mV pp 10 mV pp at 10.3125 GBd (characteristic) |
| Minimum input level to acquire lock (PAM4, closed eye) | Description |
| Option 264 | 75 mV pp at 26.56 GBd with 20 dB channel loss at 13.28 GHz (characteristic)
75 mV pp at 53.125 GBd with 14 dB channel loss at 26.56 GHz (characteristic) |
| Option 253 | 75 mV pp at 53.125 GBd with 14 dB channel loss at 26.56 GHz (characteristic) |
| Options 232, 225 | 75 mV pp at 26.56 GBd with 20 dB channel loss at 13.28 GHz (characteristic) |
| Option 216 | — |
| Other | Description |
| Input Voltage Levels (min/max) | ± 500 mV (maximum) |
| Minimum transition density | 20% |
| Interface | Differential or single-ended, DC coupled, 50 Ω |
| Connector Type | 2.92 mm (f) |
N1078A optical data input/output specifications
| Item | Description |
|---|---|
| Data Rate Input Range | Description |
| Option 264 | 125 MBd to 64 GBd, 125 MBd to 65.6 GBd (characteristic) |
| Option 253 | 53 GBd to 58 GBd |
| Option 232 | 125 MBd to 32 GBd, 125 MBd to 32.8 GBd (characteristic) |
| Option 225 | 25 GBd to 29 GBd |
| Option 216 | 125 MBd to 16 GBd, 125 MBd to 16.4 GBd (characteristic) |
| Internal Split Ratio (Option S50) (Optical Out / Internal O/E) |
50/50 (nominal) |
| Optical Signal Type/Mode | Single-Mode only |
| Wavelength Range | 1260 nm to 1620 nm. Tested at 1310 nm and 1550 nm. |
| Insertion Loss (Option S50) | 4.75 dB, 3.5 dB (characteristic) |
| Return Loss | 16 dB (characteristic) |
| Maximum Input Power | 8 mW (option S50) 4 mW (option SXT) |
| Optical Input/Output Connector Type | FC/PC 9/125 μm |
| Electrical O/E - Output Connector Type | 2.92 mm (f) |
N1078A minimum optical modulation amplitude (OMA) to achieve lock (Option S50)
| Item | Description | |||
|---|---|---|---|---|
| NRZ and PAM4 (OMA) 1310 nm/1550 nm | Description | |||
| Option 264 | 200 μW (rate ≤ 53.125 GBd) 400 μW (53.125 GBd < rate ≤ 59 GBd) 60 μW at 10.3125 GBd (characteristic) 80 μW at 26.56 GBd (characteristic) 80 μW at 53.125 GBd (characteristic) 150 μW at 56 GBd (characteristic) 300 μW at 64 GBd (characteristic) |
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| Option 253 | 400 μW 80 μW at 53.125 GBd (characteristic) 150 μW at 56 GBd (characteristic) |
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| Option 232 | 200 μW 60 μW at 10.3125 GBd (characteristic) 80 μW at 26.56 GBd (characteristic) |
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| Option 225 | 200 μW 80 μW at 26.56 GBd (characteristic) |
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| Option 216 | 200 μW 60 μW at 10.3125 GBd (characteristic) |
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| PAM4 Stressed Eye 1310 nm/1550 nm (Clock recovery locks under these conditions) | Description | |||
| Baud Rate | Pattern | Outer OMA | TDECQ | |
| Option 264 | 26.56 GBd 53.125 GBd |
SSPRQ SSPRQ |
–5.1 dBm –0.8 dBm |
~3.4 dB ~3.4 dB |
| Option 253 | 53.125 GBd | SSPRQ | –0.8 dBm | ~3.4 dB |
| Options 225, 232 | 26.56 GBd | SSPRQ | –5.1 dBm | ~3.4 dB |
N1078A minimum optical modulation amplitude (OMA) to achieve lock (Option SXT)
| Item | Description | |||
|---|---|---|---|---|
| NRZ and PAM4 (OMA) 1310 nm/1550 nm | Description | |||
| Option 264 | 100 μW (rate ≤ 53.125 GBd) 200 μW (53.125 GBd < rate ≤ 59 GBd) 30 μW at 10.3125 GBd (characteristic) 40 μW at 26.56 GBd (characteristic) 40 μW at 53.125 GBd (characteristic) 75 μW at 56 GBd (characteristic) 150 μW at 64 GBd (characteristic) |
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| Option 253 | 200 μW 40 μW at 53.125 GBd (characteristic) 75 μW at 56 GBd (characteristic) |
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| Option 232 | 100 μW 30 μW at 10.3125 GBd (characteristic) 40 μW at 26.56 GBd (characteristic) |
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| Option 225 | 100 μW 40 μW at 26.56 GBd (characteristic) |
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| Option 216 | 100 μW 30 μW at 10.3125 GBd (characteristic) |
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| PAM4 Stressed Eye 1310 nm/1550 nm 1 (Clock recovery locks under these conditions) |
Description | |||
| Baud Rate | Pattern | Outer OMA | TDECQ | |
| Option 264 | 26.56 GBd 53.125 GBd |
SSPRQ SSPRQ |
–5.1 dBm –0.8 dBm |
~3.4 dB ~3.4 dB |
| Option 253 | 53.125 GBd | SSPRQ | –0.8 dBm | ~3.4 dB |
| Options 225, 232 | 26.56 GBd | SSPRQ | –5.1 dBm | ~3.4 dB |
Option SXT is tested with an external 50/50 splitter – the same 50/50 splitter internal to the option S50. If using a splitter with a different ratio, the sensitivity will vary accordingly.
N1078A recovered clock output specifications
| Item | Specification |
|---|---|
| Clock Output Range | Description |
| Option 264 | 62.5 MHz to 32 GHz 62.5 MHz to 32.8 GHz (characteristic) |
| Option 253 | 26.5 GHz to 29 GHz and subrates |
| Option 232 | 62.5 MHz to 32 GHz 62.5 MHz to 32.8 GHz (characteristic) |
| Option 225 | 25 GHz to 29 GHz and subrates |
| Option 216 | 62.5 MHz to 16 GHz 62.5 MHz to 16.4 GHz (characteristic) |
| Recovered Clock Random Jitter | Description |
| Options 225, 232, 253, 264 | 280 fs maximum (≥ 2.5 GHz) 150 fs at 26 GHz (characteristic) |
| Option 216 | 280 fs maximum (≥ 2.5 GHz) 180 fs at 10 GHz (characteristic) |
| Loop Bandwidth Range (user selectable) | 0.015 to 20 MHz (depends on Baud Rate) |
| Loop Bandwidth Accuracy 1, 2 (characteristic, NRZ) | Description |
| Option 264 | ± 30% from 1 to 15 MHz @ 10.3125 GBd ± 30% from 1 to 20 MHz @ 26.56 GBd ± 30% from 2 to 20 MHz @ 53.125 GBd |
| Option 253 | ± 30% from 2 to 20 MHz @ 53.125 GBd |
| Option 232 | ± 30% from 1 to 15 MHz @ 10.3125 GBd ± 30% from 1 to 20 MHz @ 26.56 GBd |
| Option 225 | ± 30% from 1 to 20 MHz @ 26.56 GBd |
| Option 216 | ± 30% from 1 to 15 MHz @ 10.3125 GBd |
| Clock Recovery Peaking Range | Up to 4 settings (dependent on loop BW) |
| Tracking Range (includes spread-spectrum tracking) | ± 2500 ppm (± 0.25%) (characteristic) |
| Acquisition Range | Description |
| Standard Signals | ± 300 ppm (characteristic) |
| Spread Spectrum Signals | ± 5000 ppm (characteristic) |
| Auto Relocking | Yes |
| Phase Noise Accuracy | ± 30% (characteristic, NRZ) |
| Front Panel Recovered Clock Amplitude | Description |
| Options 225, 232, 253, 264 | ≥ 200 mV pp 450 mV pp @ 5 GHz (characteristic) 300 mV pp @ 26.56 GHz (characteristic) |
| Option 216 | ≥ 200 mV pp 450 mV pp @ 5 GHz (characteristic) |
| Front Panel Recovered Clock Divide Ratio (user selectable) | 1, 2, 4, 8, 16, 32 |
| Internal Frequency Counter Accuracy | ± 10 ppm |
| Interface | Single-ended, AC coupled, 50 Ω |
| Connector Type | 2.92 mm (f) |
PLL bandwidth is calibrated and verified using a clean NRZ, PRBS13 signal.
Actual PLL bandwidth may vary due to several factors, including pattern characteristics
(low/high transition density), signaling format (PAM4), and signal quality (closed eyes).
N1078A aux clock output 1
| Item | Description |
|---|---|
| Output Frequency | 8 GHz to 16 GHz |
| Output Voltage | 700 mV pp @ 13.28 GHz (characteristic) |
| Output Jitter | < 80 fs RMS (characteristic) |
| Interface | Single-ended, DC coupled, 50 Ω |
| Connector Type | 2.92 mm (f) |
Recovered clock to Aux Clock ratio is always 2N.
N1078A environmental specifications
| Item | Description |
|---|---|
| Use | Indoor |
| Operating Temperature | 10 °C to +40 °C (50 °F to +104 °F) |
| Non-operating Temperature | −40 °C to +70 °C (−40 °F to +158 °F) |
| Altitude (Operating) | Up to 4,600 meters (15,000 ft) |
| Humidity 1 | Maximum Relative Humidity (non-condensing): 95% RH |
| Volts-Amperes (VA) | 52 VA (Typical) |
| Weight | Description |
| N1078A-S50 | 6.4 kg (14.2 lb) (Typical) |
| N1078A-SXT | 6.4 kg (14.2 lb) (Typical) |
| Dimensions | Description |
| Without front connectors and rear feet | 88.26 mm H x 212.5 mm W x 485 mm D (3.48 inch x 8.37 inch x 19.01 inch) |
| With front connectors, jumper cable (Data Out to Data In +), and rear feet | 103.31 mm H x 219.56 mm W x 532.8 mm D (4.07 inch x 8.64 inch x 20.97 inch) |
| With front cover and rear feet | 110.18 mm H x 219.56 mm W x 550.71 mm D (4.34 inch x 8.64 inch x 21.68 inch) |
Samples of this product have been type tested in accordance with the Keysight Environmental Test Manual and verified to be robust against the environmental stresses of Storage, Transportation and End-use; those stresses include but are not limited to temperature, humidity, shock, vibration, altitude and power line conditions. Test Methods are aligned with IEC 60068-2 and levels are similar to MIL-PRF-28800F Class 3.
N1078A LINE power specifications
| Item | Description |
|---|---|
| Line Power | 100–120 VAC, 50/60/400 Hz 220–240 VAC, 50/60 Hz |
| Power in Watts | 290 Watts Maximum |
| The products can operate with mains supply voltage fluctuations up to ± 10% of the nominal voltage. | |