DSP 1030 Istruzioni per il montaggio

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DSP1030

4CHANNEL PROGRAMMABLE AMPLIFIER

USER REFERENCE MANUAL

dsp, TRAQ, and IRAQ-H are trademarks of DSP Technology Inc.

DSP Technology, Inc. 48500 Kato Road, Fremont, CA., USA

(415) 657-7555

SECTION 1

INTRODUCTION

The DSP model 1030 is a 4 channel wideband amplifier packaged in a single width CAMAC

module. Input voltage ranges are selectable from +/-25mv to +/-25V in 1-2-5 steps. The input

impedance of each channel can be selected to be either 50 ohms or 1 megohm. Coupling for each

channel can be either AC or DC. Each channel's output can be offset +/-250mv in 2mv steps.

These parameters can be selected for each channel independently via the CAMAC dataway. All

setup parameters for each amplifier are stored in battery backed up memory.

DSP 1030 User's Manual August,1989 1

SECTION 2

SPECIFICATIONS

ANALOG INPUTS

Connector:

Impedance:

Full scale:

Gains:

Maximum input

voltage:

Bandwidth:

ANALOG OUTPUTS

Connector:

Impedance:

Output range:

Offset range:

Lemo coaxial

1megohm or 50 ohms, programmable via CAMAC dataway

50 my p-p to 50 V p-p 1-2-5 steps

.01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10

a) With 1 megohm input impedance selected: +50 V

at input sensitivities of +25mv to +500mv. +250 V (DC + peak AC)

for other range settings.

b) With 50 ohm input impedance selected: 7 VDC (50mv to 10 V range)

-3db at > 100 MHz minimum for all gain settings.

Lemo coaxial

50 ohms, +2%

+/-250mv max; includes +/-250mv signal + offset (output terminated into 50

ohms)

+/-250mv, settable in approx. 2mv steps via the CAMAC dataway

DSP 1030 User's Manual August,1989 2

CAMAC COMMANDS

F(0) .A(0) .N: Read channe

F(0) .A(1) .N: Read channe

F(0) .A(2) .N: Read channe

F(0) .A(3) .N: Read channe

F(0) .A(4) .N: Read channe

F(0) .A(5) .N: Read channe

F(0) .A(6) .N: Read channe

F(0) .A(7) .N: Read channe

F(3) .A(0) .N: Read module

F(16) .A(0) .N: Write channe

F(16) .A(1) .N: Write channe

F(16) .A(2) .N: Write channe

F(16) .A(3) .N: Write channe

F(16) .A(4) .N: Write channe

F(16) .A(5) .N: Write channe

F(16) .A(6) .N: Write channe

F(16) .A(7) .N: Write channe

one control register (R1-R8)

two control register (R1-R8)

three control register (R1-R8)

four control register (R1-R8)

one offset register (R1-R8)

two offset register (R1-R8)

three offset register (R1-R8)

four offset register (R1-R8)

identifier (R1-R16)

one control register (R1-R8)

two control register (R1-R8)

three control register (R1-R8)

four control register (R1-R8)

one offset register (R1-R8)

two offset register (R1-R8)

three offset register (R1-R8)

four offset register (R1-R8)

DSP 1030 User's Manual August,1989 3

CONTROLS AND INDICATORS

LED INDICATORS

SELECTED CHANNEL

Indicates that the module is being addressed by the computer.

Four LED lamps one for each channel, indicating which

channel's status is being displayed on the front panel status

lights.

GAIN Four LED lamps that indicate the gain of the amplifier in the

selected channel, according to the encoding shown below:

GND

HIZ

CONTROLS

SELECT

CONNECTORS

INPUT

OUTPUT

LED 3 LED 2 LED 1 LED 0 GAIN VFS

OFF OFF OFF OFF 10 50mv

OFF OFF OFF ON 5 100mv

OFF OFF ON OFF 2.5 200mv

OFF OFF ON ON 1 500mv

OFF ON OFF OFF .5 1v

OFF ON OFF ON .25 2v

OFF ON ON OFF .1 5v

OFF ON ON ON .05 10v

ON OFF OFF OFF .025 20v

ON OFF OFF ON .01 50v

When this lamp is on, the selected amplifier's input is

disconnected from its input connector and connected to ground

through a 50 ohm resistor.

When this lamp is on, the selected amplifier's input is AC

coupled.

When this lamp is on, the selected amplifier's input impedance

is 1 megohm; when it is off, the impedance is 50 ohms.

This pushbutton increments the selected channel by one each

time it is pushed. When the selected channel is channel 4,

the next push of the SELECT button selects channel 1.

Each of the four channels has a LEMO coaxial input

connector.

Each of the four channels has a LEMO coaxial output

connector.

DSP 1030 User's Manual August,1989 4

INSTALLATION OPERATION

R4 R3 R2 R1 GAIN VFS

0 0 0 0 10 50mv

00 0 1 5 100mv

0 0 1 0 2.5 200mv

0 0 1 1 1500mv

0100.5 lv

0 1 0 1.25 2v

0 1 10.1 5v

0111.05 10v

10 0 0 .025 20v

1 0 0 1 .01 50v

CAMAC CONTROL

F(0) A(0) N Read channel 1 controls. This command reports amplifier status regarding

gain setting, coupling, input impedance and enabled/ground state. Data on

the R lines reports the status according to the table below:

R5 = 0: Channe

R5 = 1: Channe

R6 = 0: Channe

R6 = 1: Channe

R7 = 0: Channe

R7 = 1: Channe

input impedance is 1 megohm

input impedance is 50 ohms

is DC coupled

is AC coupled

is enabled

is disabled and grounded

F(0) A(1) N Read channel 2 controls. This command reports amplifier status regarding

gain setting, coupling, input impedance and enabled/grounded state. Data

on the R lines reports the status according to the table shown for F(0) A(0)

F(0) A(2) N Read channel 3 controls. This command reports amplifier status regarding

gain setting, coupling, input impedance and enabled/grounded state. Data

on the R lines reports the status according to the table shown for F(0) A(0)

F(0) A(3) N Read channel 4 controls. This command reports amplifier status regarding

gain setting, coupling, input impedance and enabled/grounded state. Data

on the R lines reports the status according to the table shown for F(0) A(0)

F(0) A(4) N Read channel 1 offset setting (R1-R8). R1-R8 represent a binary code, with

R1 being the LSB. A code of 0 indicates that the output of this channel

(terminated in 50 ohms), with no signal, will be offset -.25 volts. A code of

255 indicates that the offset is +.25 volts.

F(0) A(5) N Read channel 2 offset setting (R1-R8). R1-R8 represent a binary code, with

R1 being the LSB. A code of 0 indicates that the output of this channel

(terminated in 50 ohms), with no signal, will be offset -.25 volts. A code of

255 indicates that offset is +.25 volts.

DSP 1030 User's Manual August,1989 5

F(0) A(6) N

W4 W3 W2 W1 GAIN VFS

000 0 10 50mv

00 0 1 5 100mv

00102.5 200mv

001 1 1500mv

01 0 0.5 1v

01 0 1 .25 2v

0110.1 5v

011 1 .05 10v

1 0 0 0 .025 20v

100 1 .01 50v

F(0) A(7) N

Read channel 3 offset setting (R1-R8). R1-R8 represent a binary code, with

R1 being the LSB. A code of 0 indicates that the output of this channel

(terminated in 50 ohms), with no signal, will be offset -.25 volts. A code of

255 indicates that the offset is +.25 volts.

Read channel 4 offset setting (R1-R8). R1-R8 represent a binary code, with

R1 being the LSB. A code of 0 indicates that the output of this channel

(terminated in 50 ohms), with no signal, will be offset -.25 volts. A code of

255 indicates that the offset is +.25 volts.

F(3) A(0) N Read module identifier (R1-R16).

F(16) A(0) N Write channel 1 controls. This command sets amplifier gain, coupling, input

impedance and enabled/grounded state. W1-W7 control the status according

to the table below:

F(16) A(1) N

F(16) A(2) N

F(16) A(3) N

F(16) A(4) N

W5 = 0: Channe

W5 = 1: Channe

W6 = 0: Channe

W6 = 1: Channe

W7 = 0: Channe

W7 = 1: Channe

input impedance is 1 megohm

input impedance is 50 ohms

is DC coupled

is AC coupled

is enabled

is disabled and grounded

Write channel 2 contro s. This command sets amplifier gain, coupling, input

impedance and enabled/grounded state. W1-W7 control the status according

to the table for F(16) A(0) N.

Write channel 3 controls. This command sets amplifier gain, coupling, input

impedance and enabled grounded state. W1-W7 control the status according

to the table for F(16 A(0) N.

Write channel 4 controls. This command sets amplifier gain, coupling, input

impedance and enabled/grounded state. W1-W7 control the status according

to the table for F(16) A(0) N.

Write channel 1 offset DAC. This command writes data on W1-W8 to the

offset DAC. W1 is the LSB. A code of 0 offsets the output to -.25v. A code

of 255 offsets the output to +.25v. The output can be offset in 2mv steps

using the following expression.

Voffset = (0.500/256) * (code-128)

DSP 1030 User's Manual August,1989 6

F(16) A(5) N Write channel 2 offset DAC. This command writes data on Wl-W8 to the

offset DAC. W1 is the LSB. A code of 0 offsets the output to -.25v. A code

of 255 offsets the output to +.25v The output can be offset in 2mv steps

using the following expression.

✓offset = (0.500/256) * (code-128)

F(16) A(6) N Write channel 3 offset DAC. This command writes data on W1-W8 to the

offsets DAC. W1 is the LSB. A code of 0 offsets the output to -.25v. A code

of 255 offsets the output to +.25v. The output can be offset in 2mv steps

using the following expression.

✓offset = (0.500/256) * (code-128)

F(16) A(7) N Write channel 4 offset DAC. This command writes data on W1-W8 to the

offset DAC. W1 is the LSB. A code of 0 offsets the output to -.25v. The

output can be offset in 2mv steps using the following expression.

✓offset = (0.500/256) * (code-128)

DSP 1030 User's Manual August,1989 7

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