SpectraDynamics HPDA-15RM-C Operating Manual

SDI

SPECTRADYNAMICS, INC.

HIGH PERFORMANCE DISTRIBUTION AMPLIFIER

HPDA-15RM-C

OPERATING MANUAL

SPECTRADYNAMICS, INC • 1849 Cherry St. Unit 2. • Louisville, CO 80027

Phone: [phone] • Fax: [phone]

www.spectradynamics.com

1

Description

SDI

SPECTRADYNAMICS, INC • 1848 Cherry St Unit 2. • Louisville, CO 80027 • Phone: [phone] • Fax: [phone]

Se habla español

The HPDA-15RM-C is a high performance distribution and isolation amplifier. The
standard unit contains three HPDA-5 modules. Each module provides five unity gain
outputs for every input signal. The HPDA-15RM-C may be modified upon request to
contain only two HPDA-5 modules.

The following specifications are valid for any HPDA-15RM-C that provides five unity gain
outputs for every input signal. Typical cross-channel isolation is 125 dB and reverse
isolation is typically greater than 135 dB. The phase noise of the modules is
exceptionally low, typically –150 dBc/Hz @ Fourier frequency of 1 Hz and –172 dBc/Hz
@ Fourier frequency greater than 10 kHz. Both the input and output are matched to 50
ohms to obtain better than 25 dB return loss. All outputs are AC coupled and the
grounds are DC isolated to reduce the effect of ground loops.

Copyright © SpectraDynamics, Inc. 2010

2

Safety and Preparation for Use

SDI

CAUTION!

Voltages capable of causing injury or death are present in this instrument. Use extreme
caution whenever the instrument cover is removed.

Line Voltage

This instrument may be setup to operate on 100-120 or 220-240 VAC and a line
frequency of 50 to 60 Hz. The setup voltage for this HPDA-15RM-C is specified on

page 4.
Fuse

A 0.50 Ampere 250V slow-blow fuse is used for 100-120 VAC operation.
A 0.25 Ampere 250V slow-blow fuse is used for 220-240 VAC operation.
Only replace fuses with the same type and specifications.

Line Cord

The instrument has a detachable, three wire power cord for connection to a grounded
power source. The enclosure of the unit is directly connected to the outlet ground to
protect against electrical shock. Always use an outlet with a protective ground and do
not disable this safety mechanism.

Service

Do not attempt to service or adjust the instrument unless another person, capable of
providing first aid or resuscitation, is present. Contact SDI for any questions or repairs.

SpectraDynamics, Inc.
1849 Cherry Street Unit 2.
Louisville, CO 80027
USA

Tel: [phone]
Fax: [phone]
[e-mail]
www.spectradynamics.com

Copyright © SpectraDynamics, Inc. 2010

3

The Front Panel

SDI

The Front Panel

SDI

AC Power LED

The AC POWER LED will turn on when AC power is applied to unit and the unit is
operating properly.

DC Power LED

The DC POWER LED is on when DC power is applied to unit and the unit is operating
properly.

Monitor LED

The MONITOR LED of each module will turn on if all the output signals to the
corresponding module are greater than +7 dBm.

Copyright © SpectraDynamics, Inc. 2010

4

The Back Panel

SDI

The Back Panel

SDI

AC POWER ENTRY MODULE

The HPDA-15RM-C is configured to operate on:

 100-120 VAC
 220-240 VAC

DC POWER ENTRY MODULE
Optional Battery Backup Connector for +24 VDC Backup power source.

SMA INPUTS

The standard HPDA-15RM-C contains three amplifier modules each having one input
SMA connector. If you acquired a modified unit with only two HPDA modules the back
panel will contain only two SMA input connectors. The signal to be distributed should be
connected to the corresponding SMA jack labeled INPUT.

SMA OUTPUTS

There are five SMA OUTPUTS for each SMA INPUT. Any output may be used to drive
the input of another distribution module. The five outputs of each amplifier module are
DC isolated from the chassis ground to prevent ground loops. Make sure that the
amplifier ground does not float to a potential greater than 50 VDC from the chassis
ground. An output ground potential greater than 50 VDC will damage the amplifier and
could cause injury or death to personnel.

Copyright © SpectraDynamics, Inc. 2010

5

Battery Backup Module

SDI

Description

The battery backup module allows the HPDA-15RM-C instrument to be powered by a
+24 VDC power source in case of loss of the main AC power. The switch from AC to
DC supply operation is affected by a Schottky diode network and charge storage
capacitors to ensure glitch free operation. The +24 VDC power source connector is
located on the back panel of the instrument. The +24 VDC ground is not connected to
the instrument case ground internally, however both ground connections are available
at the DC power connector and may be connected together at this point.

DC Voltage

The +24 VDC may be used as backup power to prevent loss of signal during power
outages. The DC power supply should be able to provide +24 VDC at 2A. For
optimum performance the following specifications should be used for the power supply.

DC Supply +24 VDC, 2 A
Line regulation +/- 0.05% for a 10% line change
Load regulation +/- 0.05% for a 50% load change
Output ripple < 5mV peak-to-peak
DC Fuse 2.0 Ampere 250V slow-blow

Fuse

A 2.0 Ampere 250V slow-blow fuse is used for +24 VDC operation.
Replace fuses with the same type and specifications

Service

Do not attempt to service or adjust the instrument unless another person, capable of
providing first aid or resuscitation, is present. Contact SDI for any questions or repairs.

Operation

To operate the unit on DC power, locate the DC power entry connector on the rear
panel and connect the power cable. When DC power is applied to the unit, the LED
located on the front panel labeled DC POWER should light up. Connection of the
+24 VDC supply is optional.

Copyright © SpectraDynamics, Inc. 2010

6

DC Connector

SDI

DC Connector

SDI

WARNING!
DO NOT APPLY AC VOLTAGE TO THIS UNIT THROUGH THE 6 PIN CONNECTOR
ON THE REAR OF THE UNIT!
Failure to follow these directions will cause injury or death to personnel, cause
irreparable damage to the instrument and void all warranties.

WARNING!
DO NOT REVERSE THE POLARITY OF THE SUPPLY VOLTAGE!
Reversing the polarity of the power supply will cause damage to the unit and void
all warranties.

WARNING!
The chassis of the instrument is internally connected to DC ground.

The +24 VDC connector is wired as follows:
Pin 1 NC
Pin 2 NC
Pin 3 NC
Pin 4 +24 VDC GND return
Pin 5 +24 VDC power
Pin 6 Chassis GND / Earth GND

Copyright © SpectraDynamics, Inc. 2010

7

Operation

SDI

This unit is designed to operate only with the specified AC voltage on page 4
and +24 VDC. For conversion to a different voltage of operation contact
SpectraDynamics, Inc.

To operate the unit, locate the AC power entry module on the rear of the enclosure
and/or the DC connector and connect the power cord(s). Plug the unit into an
appropriate power outlet. The LED on the front panel labeled AC POWER will turn on
when you apply the AC voltage. If you also apply the DC voltage the LED labeled DC
POWER on the front panel should light up. Attach the signal to be distributed to one of
the SMA input connectors on the back panel. Any HPDA-15RM-C output may be used
to drive the input of another distribution module.

Absolute Maximum Ratings

Input power +20dBm Maximum
Reverse Power +20dBm Maximum
Input DC Voltage 10 VDC Maximum

Output DC Voltage 50 VDC Maximum
Storage Temperature -10 to +75 ºC
Operation Environment 0 to +50 ºC

Rack Mount Chassis 1U H, 19“ W, 14” D

Copyright © SpectraDynamics, Inc. 2010

8

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Max. Input Power

1 dB compression

16

17 - dBm

Bandwidth

+/- 1 dB

1 - 20

- - MHz

Gain

@ 5 MHz - -

+/- 0.5

dB

Impedance

input
output - -

50
50 - -

Ohms

Return Loss

input(S11) 5MHz
output(S22) 5MHz

- - -35

-25

-25

-25

dB

Distortion

+13 dBm
+16 dBm - -

-45

-40

-40 - dBc

Isolation

output to output
output to input

120
120

126
135 - -

dB

Phase Noise

1 Hz
10 Hz
1 kHz
10 kHz

-

-

-

-

-150

-165

-171

-172

-147

-157

-169

-170

dBc/Hz

Temperature-delay
Coefficient

0 - 50 ºC
25 - 35 ºC - - 3 1.5 5 -

ps/ºC

Specifications

SDI

All tests done at 5 MHz and +13 dBm input unless otherwise specified.

Copyright © SpectraDynamics, Inc. 2010

9

SDI

Warranty

SDI

SPECTRADYNAMICS, INC • 1849 Cherry St. Unit 2. • Louisville, CO 80027 • Phone: [phone] • Fax: [phone]

Se habla español

The HPDA-15RM-C is warranted to be free of defects under normal operating
conditions, as specified, for one year from date of original shipment from
SpectraDynamics, Inc (SDI). SDI’s obligation and liability under this warranty is
expressly limited to repairing or replacing, at SDI’s option, any product not meeting the
said specifications. This warranty shall be in effect for one (1) year from the date a
HPDA-15RM-C is sold by SDI. SDI makes no other warranty, express or implied, and
makes no warranty of the fitness for any particular purpose. SDI’s obligation under this
warranty shall not include any transportation charges or costs of installation or any
liability for direct, indirect, or consequential damages or delay. Any improper use,
operation beyond capacity, substitution of parts not approved by SDI, or any alteration or

repair by others in such manner as in SDI’s reasonable judgement affects the product

materially and adversely shall void this warranty. No employee or representative of SDI
is authorized to change this warranty in any way or grant any other warranty.

Copyright © SpectraDynamics, Inc. 2010

HPDA-15RM-C:3I-15O/R02