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ISOMET

-Enable (LVTTL)

T_DLY

RF Output

-Enable Response

The -ENABLE (active LOW) should be applied 2msec prior to the required active RF output.

The -Enable may remain LOW continuously. The RF amplifiers are design to be biased at 100% duty

factor.

T_DLY = 1.8msec

Pulsed Response

All versions of the RA1170-4 are designed for fast pulse operation up to CW operation
Typical output RF waveform is shown below

45W / 70MHz pulsed output
10%-90% rise / fall time = < 10nsec

Содержание RFA1170-4+iMS4-L

Страница 1: ...OT OPERATE the RFA1170 4 types or LS700 type AO DEVICES WITHOUT LIQUID COOLING Always refer to the AO test data sheet ISOMET CORP 5263 Port Royal Rd Springfield VA 22151 USA Tel 703 321 8301 Fax 703 3...

Страница 2: ...r to the AO device data sheet The RFA1170 4 iMS4 L combo includes a number of features to aid monitoring and control Temperature monitoring and thermal Interlock for the Amplifier and associated AO de...

Страница 3: ...puts Each channel features a class A B power stage to generate the final output level of up to 90W per output Water cooling is required The heatsink temperature must not exceed 70 C SERIOUS DAMAGE TO...

Страница 4: ...erminated The cable lengths from the amplifier to the RF connections of the deflector must be equal 3 4 Connect the Interlock of the acousto optic deflector 7 way circular connector to the 7 way conne...

Страница 5: ...n excess of this optimum level will cause a decrease in first order intensity a false indication of insufficient RF power and makes accurate Bragg alignment difficult It is therefore recommended that...

Страница 6: ...lue ISAT Typical values Class Method description Setting UpdateDDSPowerLevel 80 UpdateRFAmplitude Wiper 60 3 15 To equalise deflection efficiency across the extremes of the scan alternate between the...

Страница 7: ...tive RF output The Enable may remain LOW continuously The RF amplifiers are design to be biased at 100 duty factor T_DLY 1 8msec Pulsed Response All versions of the RA1170 4 are designed for fast puls...

Страница 8: ...ed with 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...

Страница 9: ...the optical surface and in the plane of deflection is Bragg fc 2 v The separation angle between the zeroth order and mid scan point of the first order is sep fc v The first order scan angle is scan f...

Страница 10: ...CLK TRG USB II Outline Connector Summary J1 TNC RF Output Ch1 J2 TNC RF Output Ch2 J3 TNC RF Output Ch3 J4 TNC RF Output Ch4 INT 7 way Circular Panel Plug Binder 712 AOD Temp and isolated Interlock I...

Страница 11: ...5 2 1 4 1 o H iD B 37 1 1 6 3 3 4 4 1 5 3 0 P AS ta g e T N C J1 O u tp u t P re A m p G a inS e t F P G A G a te T N C J2 O u tp u t T N C J3 O u tp u t T N C J4 O u tp u t D D S M C X M C X iM S 4 L...

Страница 12: ...Vdc 40A LED indicators 2 off 1 The bulkhead dual colour LED fitted above RF output J2 RED indicates 24Vdc is ON but one or more of the following conditions exist Interlock failure over temp ENABLE sig...

Страница 13: ...ay differ Connection options for Beam Steered AO Deflectors Amplifier Amplifier Amplifier RF1 RF4 J1 J3 J2 J4 J1 J3 J2 J4 Increasing Phase Delay Increasing Phase Delay J1 J3 J2 J4 Increasing Phase Del...

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