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ISOMET 750c Series, Инструкция по эксплуатации

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7 

ISOMET 

 
 

RF

A-Mod

+Vdc

Pwr
Adj

ISOMET

20

5

85

100

70

73

SMB

SMA

Mounting Flange to Heatsink
Apply Thermal Compound
Max. Temp 70deg C

D-Mod

 

 
Figure 1:   Driver Installation 
 
 
 
 

+Vdc

+Vcc

o

+

Gnd

En

Out

Vcc

D-Mod
Input

PA Transistor

Pre-Amp

RF 
Output

Mixer

RF 
SW

Oscillator

A-Mod
Input

PWR 
Adj

 

 
 
 
Figure 2:   Driver Block Diagram 

Содержание 750c Series

Страница 1: ...z 4 150MHz 5 200MHz 6 250MHz C indicates case style and where appended m indicates options combinations possible 2 2 Watt output 3 3 Watt output 4 4 Watt output 6 6 Watt output L 15V supply operation...

Страница 2: ...erature stabilized A high frequency diode ring mixer and RF analog switch are used to modulate the RF carrier according to the signals applied to the D mod TTL and A Mod analog modulation inputs D Mod...

Страница 3: ...operation The required voltage is 24 28Vdc at a current drain of approximately 470mA EXCEPT model 750c L This lower power driver operates from 15Vdc The external power source should be regulated to 2...

Страница 4: ...NOT EXCEED 15Vdc or apply reverse polarity 3 3 Connect the RF output SMA jack to an acousto optic modulator or 50 RF load if it is desired to measure the modulator RF output power 3 4 a Connect a TTL...

Страница 5: ...Observe the diffracted first order output from the acousto optic modulator and the undeflected zeroth order beam Adjust the Bragg angle rotate the modulator to maximise first order beam intensity Note...

Страница 6: ...th a soft ball of brushed short fibres removed cotton slightly moistened with clean alcohol Before the alcohol has had time to dry on the surface wipe again with dry cotton in a smooth continuous stro...

Страница 7: ...SMB SMA Mounting Flange to Heatsink Apply Thermal Compound Max Temp 70deg C D Mod Figure 1 Driver Installation Vdc Vcc o Gnd En Out Vcc D Mod Input PA Transistor Pre Amp RF Output Mixer RF SW Oscilla...

Страница 8: ...on shown above D Mod constant 5V TTL high The modulation input is a combination of BOTH analog and digital control as illustrated below Figure 3 Typical Modulation Waveforms Peak Level set by driver P...

Страница 9: ...n the plane of deflection is BRAGG fc 2 v The separation angle between the zeroth order and the first order outputs is SEP fc v Optical rise time for a Gaussian input beam is approximated by tr 0 65 d...

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