3910 Series RF Driver
Next Generation AO Modulator Driver
PRELIMINARY DATA SHEETThe 3910 series RF drivers offer asignificant upgrade over our 2910
series while maintaining backwards
compatibility.
The 2910 series RF driver has been a workhorse forpowering AO modulator applications over the last
decade. The line has received a complete makeover
to further enhance the success of this signaturedriver. All of its functions have been improved and afew key features have been added while
maintaining its affordable price.
The 3910 modulation input now allows the user toswitch from three modulation schemes: Digital,Analog and Digital + Analog. This function will bestandard on all models.
The RF power has been doubled from 4 Watts to 8Watts (at +28 Vcc). The 3910 features more
efficient power consumption than its predecessor.
The Frequency range has been increased up to500MHz, making it able to control any of thecurrently available AO modulator models.
The rise time is <4ns at all power levels andfrequencies ≥ 250MHz.
Another new feature is the optional ability tosynchronize the driver to an external clockreference.
The 3910 RF driver offers more power, higher
frequencies, faster rise times, more modulation
choices, synchronization capabilities and the latest
electronic components over the 2910 series driver
while maintaining the same footprint and pricing.

Key Features• Up to 500MHz center frequency• Selectable modulation input• Adjustable RF power up to 8 Watts• Rise time as low as 4 ns
• Optional external clock synchronization
Key Benefits• Proven reliability• Consistent performance• Lower power consumption• Test documentation• One year limited warranty
Applications• Micromachining• Materials processing• Laser displays• Printing• Heterodyne interferometry• Pulse picking

97-03910-XX................................................................................................................................................................................
13 January 2017
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time.

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3910 Preliminary Driver Specifications
ParameterPerformance

Center frequency

45 – 500 MHz fixedRF output

0.25 – 8.0 Watts adjustable (at +28 V)

Input voltage +Vcc

+24 to +28 V

2nd harmonic level< -20dBc

Output VSWR

1.5:1 max

Output waveform

Sinusoidal

Rise / fall time

4 nsec max (frequencies ≥ 250 MHz)

Contrast ratio

50 dB minAnalog input voltage

0–1V

Analog input impedance

50 Ohms

Digital input voltage

Standard TTL levels

Digital input impedance

10 kOhms

Frequency stability+/- 1.5 ppm over temp

Frequency accuracy+/- 1%

Thermal management

Conduction cooled heat sink

Operating temperature range

10°C to 60°C

97-03910-XX................................................................................................................................................................................
13 January 2017
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time.

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Model Code Generation:
The model code will be entered as the description field.

Sample: 1200AFP-AD-2.5-40EC-24V

XXV +Vcc Voltage [optional]
XXEC External Clock Frequency (MHz) [optional]
XX.X RF Power (Watts)
AD Modulation Function (A = Analog, D = Digital, AD = Analog and Digital)
XXXAFP
1Frequency (MHz)

Driver designation

97-03910-XX................................................................................................................................................................................
13 January 2017
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time.

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