Directed Electronics PDG-2515/2520 manual Trigger Delay External Trigger to Sync T0

	PDG-2515/2520 Operating Manual
Specifications
PARAMETER	Value
OUTPUTS
Output Channels	Four (4) outputs, each with independent digitally controlled delay
	and pulse width
Delay Range	0 to 99.9 Seconds
Pulse Width Range	25 Nanoseconds to 99.9 Seconds
Delay And Pulse Width Resolution	25 Nanoseconds below 1 Microsecond
	50 Nanoseconds from 1 Microsecond to 10 Microseconds
	3 Digits Above 10 Microseconds
Accuracy (Delay and Pulse Width)	±2%
Time Base	120MHz Frequency Synthesizer
Delay Jitter (1st Sigma)	TBD
Trigger Delay (External Trigger to SYNC (T0)	TBD
Output
Internal Throughput Delay (SYNC (T0) To Output 1	<25 Nanoseconds
Or Output 2 Rising Edge)
Output Rise & Fall Times (Into 50Ω)	<5 Nanoseconds
Over/undershoot	<5%
Amplitude	+4V into 50W
Output Connectors	BNC, Front Panel
INTERNAL RATE GENERATOR
Modes	Continuous, Single-Shot, Burst, External Trigger, Divide By N,
	Pulse Count
Rate	Single-Shot or 100 millihertz to 3MHz (Internal)
	Single-Shot to 5MHz (External Trigger)
Resolution	3 Digits (<1MHz), 2 Digits (>1MHz)
Accuracy (Continuous, Pulse Count, Output-2	25 PPM
Modes)
Accuracy (Burst Mode)	±2%
Rate Jitter (Continuous, Pulse Count, Output-2	TBD
Modes), 1st Sigma
Rate Jitter (Burst Mode), 1st Sigma	TBD
Burst and Pulse Count Mode	1 to 65,535 Pulses per Burst or Count
EXTERNAL TRIGGER INPUT
Type	Positive Edge Trigger
Input Amplitude	TTL into 1KΩ
Input Impedance	1KΩ
Minimum Trigger Pulse Width	25ns
Input Trigger Connector	BNC, Front Panel
T0 (SYNC) OUTPUT
T0 (Sync) Output	TTL output into 1 MegΩ, 4.5V into 50Ω
Connector	BNC, Front Panel
COMPUTER INTERFACE
Interface Type	RS232 or GPIB
Interface Connector	DB9 or GPIB connector
GENERAL
Internal Non-Volatile Storage	5 Configurations
Operating Temperature Range	0°C to +40°C
Cooling Requirements	Air cooled
Input AC Power	90-264VAC, 47-63Hz, 28W Maximum
Dimensions (H X W X D)	3 ½” H x 8” W x 6 1/4” D (8.9cm H x 20.3cm W x 15.9cm D)
Weight	2 lbs. (.9kg) Approximate

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MNPDG2515-2520R0.doc

© 2004 Directed Energy, Inc.