Phase Matching Kits
This topic lists the contents of the following optional electrical and optical phase-matching kits for the N107X-series clock recovery DCA-Ms:
Electrical Phase Matching Kits
For clock recovery on electrical input signals, Keysight makes available the following electrical phase-matching kits:
- N1027A-76A for N1077A, N1076A, and N1077A
- N1027A-76B for N1076B, N1077B, and N1078A
Use these kits to minimize (align) clock-to-data delays and ensure accurate jitter measurements when using N1076A/B, N1077A/B, or N1078A for external clock recovery with an:
- N109X-series DCA-M oscilloscope with an (or recovering clocks from electrical signals), or
- N1000A DCA-X mainframe with an internal precision timebase plus an N1045A, N1046A, or N1055A, module.
In the kit,
- Microwave pick-off tees are used to direct a small amount of the electrical input signal to the clock recovery module’s input. The kit's microwave equalizers are used for opening closed eyes.
- Circled numbers (ID Shown in Figures column) identifies items on the measurement setup drawings located in this topic.
- External equalizers can be placed in front of the electrical clock recovery inputs to “open” a closed eye. They help the instrument recover a clock from a signal that has been severely degraded due to excessive frequency-dependent losses.
The electrical phase matching kits can be ordered as an option at the time that the module is ordered. Thus kit contain the accessories listed in the following table.
Use this kit to minimize (align) clock-to-data delays and ensure accurate jitter measurements when using the N1076A external clock recovery (or recovering clocks from electrical signals with the N1078A). The kit is designed to be used with an N1000A DCA-X mainframe with an internal precision timebase plus any N1045A, N1046A, or N1055A, module.
N1027A-76A Electrical Phase Matching Kit (for N1076A)
| Description
|
ID Shown in Figures
|
Qty
|
P/N
|
| Delay Lines |
| Two sets of 2.92 mm matched pair cables (delay lines). Four cables total consisting of: |
|
1 |
N1076‑60015 |
| A matched pair with 2.37 ns delay, 0.55m length. |
①
|
| A matched pair with 4.33 ns delay, 1.0m length |
②
|
| Delay-line assembly, 18.2 ns. This cable must be installed on DCA-X rear panel as explained in the N107X-series user's guide which can be downloaded from keysight.com. |
③
|
1 |
N1027A‑60015 |
| Microwave Pick-Offs |
Two Microwave pick-off tees, 2.4 mm connectors, matched pair
(Microwave pick-off tees are used to direct a small amount of the electrical data signal to the clock recovery input ) |
④
|
1 |
N1027A‑2P2 |
| Equalizers |
| 6 dB negative slope, 0.5 to 18 GHz, SMA |
⑤
|
2 |
N1027A‑EQ6 |
| 9 dB negative slope, 0.5 to 18 GHz, SMA |
2 |
N1027A‑EQ9 |
| Tools |
| T-20 Torx screwdriver. This screwdriver is used to install the kit’s delay cable assembly (item 4). |
|
1 |
8710‑1615 |
| T-10 Torx screwdriver. This screwdriver is used to install the kit’s delay cable assembly. (item 4) |
|
1 |
8710-1623 |
| Torque wrench, 8lb-in, 5/16 Inch |
|
1 |
8710-1765 |
N1027A-76B Electrical Phase Matching Kit
| Description
|
ID Shown in Figures
|
Qty
|
P/N
|
| Delay Lines |
| Two sets of 2.92 mm matched pair cables (delay lines). Four cables total consisting of: |
|
1 |
N1076‑60015 |
| A matched pair with 2.37 ns delay, 0.55m length. |
①
|
| A matched pair with 4.33 ns delay, 1.0m length |
②
|
| SMA delay-line assembly, 18.2 ns. This cable must be installed on DCA-X rear panel as explained in the N107X-series user's guide which can be downloaded from keysight.com. |
③
|
1 |
N1027A‑60015 |
| Microwave Pick-Offs |
Two Microwave pick-off tees, 1.85 mm connectors, matched pair
(Microwave pick-off tees are used to direct a small amount of the electrical data signal to the clock recovery input ) |
④
|
1 |
N1027A-2P8 |
| Equalizers |
| 3 dB negative slope, 0.5 to 18 GHz, 2.92 mm (m) to 2.92 mm (f). |
⑤
|
2 |
N1027A-EQ3 |
| 6 dB negative slope, 0.5 to 18 GHz, 2.92 mm (m) to 2.92 mm (f). |
2 |
N1027A-EQ6 |
| 9 dB negative slope, 0.5 to 18 GHz, 2.92 mm (m) to 2.92 mm (f). |
2 |
N1027A-EQ9 |
| Tools |
| T-20 Torx screwdriver. This screwdriver is used to install the kit’s delay cable assembly (item 4). |
|
1 |
8710-1615 |
| T-10 Torx screwdriver. This screwdriver is used to install the kit’s delay cable assembly. (item 4) |
|
1 |
8710-1623 |
| Torque wrench, 8 lb-in (0.9 Nm), 5/16 Inch (7.9 mm) |
|
1 |
8710-1765 |
Optical Phase Matching Kits
The optical phase matching kits provide specially matched cables that minimize (align) clock-to-data delays and ensure accurate measurements when using an N107x-series DCA-M for external clock recovery. The kit is designed to be used with an DCA-X mainframe with an internal precision timebase plus any optical DCA plug-in module or any N1092 series DCA-M module. These optical kits can be ordered as options at the time that the module is ordered. In the following tables, the Item number matches the circled number that is used to identify an item on measurement setup examples. Use red circled items when the clock-to-data delay is critical. In situations where the clock-to-data delay is not critical, you can substitute a corresponding blue circled item. For example, if a setup figure shows cable
you can substitute cable in non-critical situations.
The external equalizers provided in the kit may be placed in front of the electrical clock recovery inputs to “open” a closed eye. They help the instrument recover a clock from a signal that has been severely degraded due to excessive frequency-dependent losses.
N1027A-77A Optical Phase Matching Kit (for N1077A)
| Description
|
ID Shown in Figures
|
Qty
|
P/N
|
| Electrical Cables |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 1m length.
Cable used between the N1077A’s Recovered Clock Out
connector and the measurement instrument. |
①
|
2 |
N1075‑60017 |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 0.3m (12 in.) length.
Flexible cable used between N1077A’s Data Out
connector and Data +
clock recovery input if an external equalizer is required. |
②
|
1 |
N1077‑60005 |
| Multimode Optical Cables (50/125 μm) |
FC/PC, 1.0m length
For general purpose optical measurements when clock-to-data delay is not critical. This optical cable is also provided with each N1077A clock recovery. |
③
|
1 |
N1077-60011 |
FC/PC, 2.6m length (phase matched)
Multimode delay matching for N1077A with 86100D-PTB + DCA Module (86105D, 86116C) |
④
|
1 |
N1077-60012 |
FC/PC, 4.75m length
Multimode delay matching for N1077A with N1092x or N1094x. |
⑤
|
1 |
N1077‑60013 |
| Single-Mode Optical Cables (9/125 μm) |
FC/PC, 1.0m length
For general purpose optical measurements when clock-to-data delay is not critical. This optical cable is also provided with each N1077A clock recovery. |
⑥
|
1 |
N1077‑60008 |
FC/PC, 3.5m length
Single-mode delay matching for N1077A with 86100D-PTB + DCA Module (86105D, 86116C) |
⑦
|
1 |
N1077-60009 |
FC/PC, 5.6m length
Single-mode delay matching for N1077A with N1092x or N1094x. |
⑧
|
1 |
N1077-60010 |
| Microwave Equalizers |
| 6 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑨
|
1 |
N1027A‑EQ6 |
| 9 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑨
|
1 |
N1027A-EQ9 |
N1027A-77B Optical Phase Matching Kit (for N1077B)
| Description |
ID Shown in Figures |
Qty |
P/N |
| Electrical Cables |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 1m length.
Cable used between the N1077B’s Recovered Clock Out connector and the measurement instrument. |
①
|
2 |
N1075‑60017 |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 0.3m (12 in.) length
Flexible cable used between N1077B’s Data Out connector and Data +
clock recovery input if an external equalizer is required. |
②
|
N1077‑60005 |
| Multimode Optical Cables (50/125 μm) |
FC/PC, 1.0m length
For general purpose optical measurements when clock-to-data delay is not critical. This optical cable is also provided with each N1077B clock recovery. |
③
|
1 |
N1077-60011 |
FC/PC, 6.25m length
Multimode delay matching for N1077B with N1092x or N1094x. |
④
|
1 |
N1077‑60025 |
| Microwave Equalizers |
| 6 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑤
|
1 |
N1027A‑EQ6 |
| 9 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑤
|
1 |
N1027A‑EQ9 |
N1027A-78A Optical Phase Matching Kit (for N1078A)
| Description |
ID Shown in Figures |
Qty |
P/N |
| Electrical Cables |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 1m length.
Cable used between the N1077A’s Recovered Clock Out
connector and the measurement instrument. |
①
|
2 |
N1075‑60017 |
Coaxial cable, 2.92 mm (m) to 2.92 mm (m), 0.3m (12 in.) length
Flexible cable used between N1077A’s Data Out
connector and Data +
clock recovery input if an external equalizer is required. |
②
|
1 |
N1077‑60005 |
| Single-Mode Optical Cables (9/125 μm) |
FC/PC, 1.0m length
For general purpose optical measurements when clock-to-data delay is not critical. This optical cable is also provided with each N1078A clock recovery. |
③
|
1 |
N1077‑60008 |
FC/PC, 5.0m length
Single-mode delay matching for N1078 with N1092x or N1094x. |
④
|
1 |
N1077-60014 |
| Microwave Equalizers |
| 6 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑤
|
1 |
N1027A-EQ6 |
| 9 dB, negative slope, 0.5 GHz to 18 GHz, SMA |
⑤
|
1 |
N1027A‑EQ9 |