ISOMET RFA920T Series Manual Download

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Feb 2017

Acousto-Optic Deflector Driver

Including: Basic Deflector Alignment

Instruction Manual

RFA920T Series

Models -

RFA920T-80

: 60-100MHz 10V Tuning Input, 10V Analog Modulation Input

RFA920T-110

: 90-130MHz 10V Tuning Input, 10V Analog Modulation Input

RFA920T-150

: 125-175MHz 10V Tuning Input, 10V Analog Modulation Input

ISOMET CORP, 5263 Port Royal Rd, Springfield, VA 22151, USA.

Tel: (703) 321 8301, Fax: (703) 321 8546, e-mail:

ISOMET (UK) Ltd, 18 Llantarnam Park, Cwmbran, Torfaen, NP44 3AX, UK.

Tel: +44 1633-872721, Fax: +44 1633 874678, e-mail:

ISOMET

Summary of Contents for RFA920T Series

Page 1: ...T 110 90 130MHz 10V Tuning Input 10V Analog Modulation Input RFA920T 150 125 175MHz 10V Tuning Input 10V Analog Modulation Input ISOMET CORP 5263 Port Royal Rd Springfield VA 22151 USA Tel 703 321 830...

Page 2: ...ized varactor voltage controlled oscillator The output frequency is proportional to the input tuning voltage with a scale factor of approximately 2 4MHz volt depending on the model The start frequency...

Page 3: ...e required voltage is 24Vdc at a current drain of approximately 2 8A The external power source should be regulated to 2 and the power supply ripple voltage should be less than 100mV for best results T...

Page 4: ...the floating contact 1 of the interlock switch Connect pin 4 to floating contact 2 of the interlock switch Grounded at driver The interlock connection becomes open circuit disabling the RF output if...

Page 5: ...f the D type connector This will operate the deflector at its mid scan position 3 14 Align the deflector head to insure that the incident light beam is centred in the active aperture of the deflector...

Page 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...

Page 7: ...Control signals 9 pin D type Tuning Voltage 0 10V sig pn1 rtn pn6 Amplitude Control 0 10V sig pn8 rtn pn3 Enable Interlock Control Low On sig pn9 rtn pn4 Digital Gate Input NC or High On sig pn7 sig...

Page 8: ...mp RF Output PWR ADJ Offset Tuning Figure 2a Driver block diagram generic SKT DB9 5 9 4 8 3 7 2 6 1 3 1 2 Int GATE Optional No Connect or Open Drain FREQ TUNING 0 0 10 V 1Kohm MOD Amplitude Control 0...

Page 9: ...9 ISOMET 1 0 1 RF Carrier 1 0 1 Modulation Signal Input 1 0 1 Amplitude Modulated RF Output Figure 3 Typical Modulation Waveforms...

Page 10: ...face and in the plane of deflection is given by BRAGG fc 2 v The separation angle between the zeroth order and mid scan point of the first order is given by SEP fc v The first order scan angle is give...

Page 11: ...If applicable Coolant circuit not shown for clarity Interlock Connector SMB Coax or 3 pin Snap Normally Closed Contacts Pins 1 2 Not connected Pin 3 Tune 0 10V Analog Mod 0 10V Gate O C Vdc 1 2 3 1st...