Eight output START trigger / master clock source
The MCCD is a 8 output fast pulse driver with 60 ps rise time and a 8 output clock driver (TTL) with internal reference clock or ext input.
The Model MCCD is a fast pulse distributor intended to be used with multiple MCS8A modules. It expands one common START signal to several synchronous starting MCS8A units. The introduced additional time jitter is typical less than 0.075ps rms. Output rise / fall time is 60 ps. The minimum pulse width is 90ps. It can operate up to 6 GHz periodic signal frequency. In addition there is a synchronous clock source at the rear panel. It can supply up to 8 MCS8A units with a common clock for synchronous operation of multiple MCS8A. It has a clock input (TTL 3.3V, 10 to 120 MHz) to be distributed to the connected MCS8As. Termination can be 50 Ohm or 3 kOhm. AC or DC coupling is selectable. If no input signal is connected, by setting an internal jumper the internal 10 MHz clock source can be fed to the output connectors. The internal quartz oscillator can be replaced by an oven-stabilized oscillator (option MCCDOVX) or a highly stable Cs atomic clock (option MCCDATOM) or an internal GPS stabilized clock (option MCCDGPS). Also there is an optional binary divider (32 bit), which can reduce the external clock in binary steps. Divider factor is set by internal jumpers.
Sync START: One input (neg. signals), 8 synchronous outputs with time skew less than 20ps.
Propagation delay: ~1.4ns
Pulse jitter: 0.075ps rms (typ.)
Sync master clock: One input (pos. signals), 8 synchronous TTL (3.3 V) outputs.
|MCCD||8-fold pulse driver + master clock source with 8 synchronous outputs||MCCD|
|MCCDOVX||Option: oven controlled ref.oscillator (higher stability)||MCCDOVX|
|MCCDATOM||Option: Cs atomic clock (highest stability)||MCCDATOM|
|MCCDGPS||Option: internal GPS stabilized clock||MCCDGPS|
|MCCDDIV||Option: internal divider||MCCDDIV|
|MSET1||Set of cables: 8 x RG316 SMA-SMA, 30 cm||MSET1|
|MSET2||Set of cables: 8 x RG316 BNC-BNC, 50 cm||MSET2|
|MSET3||Set of cables: 8 x RG316 BNC-BNC, 100 cm||MSET3|
|MSET4||Set of cables: 1 x SMA 1 m, 8 x SMA 20 cm, 8 x BNC 50 cm, BNC-SMA adapter||MSET4|
TRG Input: 1xSMA connector , Zin = 50 Ohm, 0->0.25V nom.0V...-1.5V maximum input voltage range, Threshold: -0.125V fixedDon't apply pos. voltage!
TRG outputs: 8 x SMA connector, outputs FAST NIM (CML) pulses (neg.: 0V -> -0.4V) into 50 Ohm, Zout = 50 Ohm, backterminated.
Reference clock in: BNC connector, TTLcompatible, 10 MHz, input frequency: <120 MHz, optional 50 Ohm terminated (int. Jumper)optional AC- coupled (int. Jumper)
Master clock out: (8x) BNC connector, TTL compatible, 0...3,3V, rise time: 1ns
Power connector: 5.5 x 2.1 mm DC connector (center positive)
10 MHz crystal oscillator (10ppm)
10 MHz ovenized crystal oscillator, frequency stability: 0.03 ppm @ 0°C to +50°C
10 MHz Cs atomic clock oscillator
Short-term stability (Allan Deviation) of3.0 × 10–10at τ = 1 sec, typical longtermaging of <9 × 10–10/month, and maximumfrequency change of ±5 × 10–10 over an operating temperature range of–10 °C to 70 °C.
Power requirements: 12V DC / 0,5A
Operating Temperature Range: 0°C to +50°C
Physical: aluminum case, 275mm x 260mm x 48mm, 1.8 kg
Shipping case: 500mm x 400mm x 200mm, 7 kg
• External power supply: IN: 90 - 264 V AC Out: 12 V DC (enclosed)
• MCCDOVX option: Oven controlled oscillator
• MCCDATOM option:10 MHz Cs atomic clock
• MCCDDIV option: internal 32bit binary didvider
• MSET1 Set of cables: 8 x RG316 SMA-SMA, 30 cm
• MSET2 Set of cables: 8 x RG316 BNC-BNC, 50 cm
• MSET3 Set of cables: 8 x RG316 BNC-BNC, 100 cm
• MSET4 Set of cables: 1 x SMA 1 m, 8 x SMA 20 cm, 8 x BNC 50 cm, BNC-SMA adapter