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, the internal 10 MHz clock source is 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). 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.

FRONT PANEL:
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.)

REAR PANEL:
Sync master clock: One input (pos. signals), 8 synchronous TTL (3.3 V) outputs.

 

Ordering Information
ModelDescriptionOrder No.
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
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

FRONT PANEL:
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.
REAR PANEL:
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)
 

REFERENCE CLOCK:
10 MHz crystal oscillator (10ppm)
MCCDOVX option
10 MHz ovenized crystal oscillator, frequency stability: 0.03 ppm @ 0°C to +50°C
MCCDATOM option
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
Accessories:
• External power supply: IN: 90 - 264 V AC Out: 12 V DC (enclosed)
• Handbook
Hardware options:
• 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
Software: None