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16 

ISOMET 

RF Out         INT

 RF Output
 TNC

15-way male
 D-type

G1/8" Thread with
Legris Push-in Water Fittings
LF3101-08-10

240

5

230

20

80

71

120

Mounting Holes (4 places)
M5 Thread

Water cooled Heatsink
Must not exceed 50deg C
Use Corrosion Inhibitor in coolant

Driver Amplifier Outline

Dimensions : mm
1" = 25.4mm

220

Underside View

PWR

ADJ

+24V  0V

CTRL

RF DRIVER

MODEL :

S/N :

ISOMET

INTERLOCK Input
Binder 719 Series
Male Socket

50.6MHz   40.0MHz

RF PWR ADJ POT

Modulation and Gate Input connections 
 
 

3

1

2

J1

1

2

15way

8

15

7

14

6

13

5

12

4

11

3

10

2
9
1

J2

1

2

3

1

2

AOM Thermal Interlock Plug
(OK = connected contacts 1-2)

J2 = FREQ MOD input
TTL compatible 
Logic HIGH (3V < V < 5V) = 40.0  MHz
Logic LOW  (0V < V < 2V) = 50.67MHz

J1 = GATE input
PLC compatible 
Logic HIGH (5V < V < 24V) = ON
Logic LOW  (0V < V < 4V) = OFF

RF Driver INT Plug
(OK = connected contacts 1-2)

RF Driver D-Type

 

Notes:

 

 
***  The interlock signal must be connected.  Contacts closed for normal operation.     

 
 
 
2.0 

Mounting Holes 

 

4 x M5  
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 2:   Driver Installation 

Содержание RFA741 Series

Страница 1: ...l Models RFA741 40MHz 50 7MHz 180W output Options xxx combinations possible BR Brass water cooled heatsink ISOMET CORP 5263 Port Royal Rd Springfield VA 22151 USA Tel 703 321 8301 Fax 703 321 8546 e m...

Страница 2: ...wer Amplifier is a fixed dual frequency RF power source specifically designed to operate with the AOM740 series of acousto optic high power modulators A block diagram of the driver is shown in Figure...

Страница 3: ...ts the RF waveform and AO response is shown below Time FREQ MODULATION Input FREQ Modulated RF Output Zero Order Max Laser O P 0 W Ton Minimum not 0 Maximum Maximum Laser O P First Order Control Range...

Страница 4: ...is selectable by the user a A manual adjust multi turn potentiometer PWR ADJ for each frequency Maximum RF power fully clockwise or b A quad 256 step digital potentiometer configured to give independ...

Страница 5: ...s 32deg C The hysterisis of the thermal switches is 7 10deg C Once in a fault state the coolant temperature may need to be reduced to reset the thermal switches Precautions TTL digital input levels mu...

Страница 6: ...r if the RF connection between the AOM and driver is broken Resetting Once the fault condition is corrected it will be necessary to reset the driver 1 Turn the DC power OFF and ON or 2 Press momentary...

Страница 7: ...ock input d the DC supply is off The RED LED should be OFF Monitor Outputs The status of the YELLOW and GREEN LEDS is available at the D type connector These outputs are opto isolated 12V 5V 5V 15 way...

Страница 8: ...o optic modulator mini 3 pin snap connector to the RF driver INT input mini 3 pin snap connector Connect pin 1 to pin 1 and pin 2 to pin 2 If the temperature of the modulator exceeds 32 C or the inter...

Страница 9: ...i e OFF then clockwise CW approx 5 turns 3 8 Apply DC to the amplifier 3 9 Apply a constant TTL high signal to the Freq Modulation input on the D type connector of the RFA741 Connect pin 7 of D to the...

Страница 10: ...ptic modulator and the undeflected zeroth order beam Adjust the Bragg angle rotate the modulator to maximise first order beam intensity with the 40MHz Frequency selected 3 13 After Bragg angle has bee...

Страница 11: ...W1 Vss A2 B2 W2 SCL AD1 A3 SDA Vdd GNDd W0 B3 W3 10T Pot 50MHz 1 3 2 12 13 1 14 2 4 5 11 10 6 7 8 9 3 Vdd Gnd A0 A1 en S1 S2 S3 S4 D nc nc1 nc2 Vss 15 way D Ty pe 8 15 7 14 6 13 5 12 4 11 3 10 2 9 1 5...

Страница 12: ...Pots W3 and W0 apply to both 40MHz and 50MHz powers AD5254 configuration RDAC2 defines the 50 MHz power control factor V50_Control VL VH VL x W2 255 where W2 8 bit value programmed into RDAC2 RDAC1 d...

Страница 13: ...6 0 7 0 8 0 9 1 0 V_Control Volts RF Power W By adjusting the values of RDAC0 and RDAC3 it is possible to increase the adjustment resolution of the 8 bit power level control at 40 0 MHz RDAC1 and 50 7...

Страница 14: ...ft 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 stroke Exam...

Страница 15: ...Normally closed OPTIONAL Enabled monitor Output Signal pin 2 Open collector logic Low OK Return pin 10 Maximum applied voltage via external pull up resistor 24V Maximum current 20mA RF Status monitor...

Страница 16: ...ut Binder 719 Series Male Socket 50 6MHz 40 0MHz RF PWR ADJ POT Modulation and Gate Input connections 3 1 2 J1 1 2 15way 8 15 7 14 6 13 5 12 4 11 3 10 2 9 1 J2 1 2 3 1 2 AOM Thermal Interlock Plug OK...

Страница 17: ...1 3 2 1 3 2 Gnd En Out Vcc PWR Adj Mixer Oscillator S0 1 Dig Pot S0 0 Man Adj Pot Select FREQ Modulation Input PA Transistor 4 Channel Digital Pot RF Output RF SET Pre Amp I2C GATE Input PWR Adj Oscil...

Страница 18: ...deg C DC supply 24Vdc 14A 1 2 3 Interlock Connector Normally Closed Contacts Pins 1 2 Not connected Pin 3 Bragg Angle at 40MHz 9 4um 34 2mrad 10 6um 38 5mrad Bragg Angle 2 1 Main Beam Dummy Beam First...

Страница 19: ...o the optical surface and in the plane of deflection is BRAGG fc 2 v The separation angle between the Zeroth order and the First order is SEP fc v Optical rise time for a Gaussian input beam is approx...

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