AOM Driver A36-Series

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AOM Driver A36-Series

The A36xxx RF driver series provides up to 2 Watt output power. Various types cover a frequency range from 80 to 350 MHz. The frequency is customizable.

The maximum RF output power is adjustable by an internal potentiometer. The analogue modulation voltage controls the output power from 0 to 100% of the adjusted maximum power.

Additional to the analogue modulation voltage a digital modulation control signal can switch on and off the RF power. An operation scheme below (page 6) illustrates the interaction of the two modulation signals in detail。

Both the analogue and digital modulation are characterized by extraordinary on/off ratios of at least 70 dB.

The driver can be operated with modulation frequencies (analogue and digital) up to 1/4 of the carrier frequency.

Optimum EMC shielding and mechanical protection is achieved by an aluminium casing and a conductive surface passivation. The base plate serves for mounting as well as for heat dissipation.

Key Features:

Frequency range 80 to 350 MHz

RF output power 2 Watt

Optimized for grey-scale applications

RF on/off ratio > 65 dB

Constant output power design: maximum fluctuation � 5% between cold and warm state

Conductive cooling through base plate

Compact housing, fully shielded (EMC)

Applications:

Fast modulation components for extra cavity applications, e. g. RGB systems

Technical Specifications

Supply voltage	+24 VDC
Supply current	typ. 1.1 A @ 2 W RF output power
Output impedance	nom. 50W
Maximum RF output power (adjustable) *	> 2 W (+37 dBm)
Analogue modulation
Impedance	50 or 600W
Voltage range @ 50W	0 � +1 V or 0 � +5 V **
Voltage range @ 600W	0 � +5 V or 0 � +10 V **
RF ON / OFF ratio	> 65 dB
Digital modulation
Impedance	4k7 or 50 _ (pull-up or pull-down) **
Level	High = ≥ 3V � 5V Low = 0 � < 2V
Logic styles positive logic, pull-up	Input signal: High Low not connected RF power: on off on
positive logic, pull-down	on off off
negative logic, pull-up	off on off
negative logic, pull-down	off on on
RF ON / OFF ratio	> 100 dB
* into 50W load	** other combinations on request

Technical Data, Frequency-Dependent

RF output frequency [MHz]	80	100	110	150	200	250	300	350
Frequency accuracy [ppm]					< �30
Harmonics distortion * [dBc]					< -26
Analogue modulation RF rise time / fall time (10 � 90%) *					< 8 ns
Digital modulation RF rise time / fall time (10 � 90%) *					< 8 ns
* into 50W load

Connectors, Dimensions, Weight, Cooling

RF output connector	SMA female
Control input connector	D-Sub 7W2
Pins 1 and 2, inside linked	GND (case)
Pins 3 and 5, inside linked	+Us (24 VDC)
Pin 4	not connected
Pin A1 (coaxial)	Analogue modulation
Pin A2 (coaxial)	Digital modulation
Dimensions
Casing	120 mm x 50 mm x 35 mm **
Mounting plate, standard case	120 mm x 70 mm x 3 mm length x width x height
Weight
Standard case	340 grams
Compatible case	370 grams
Cooling	Conduction, the base plate must be attached to a suitable heat sink.

Environmental Conditions

Warm up time	10 minutes for optimum stability
Base plate temperature	+10�C � +40�C For optimum output power stability constant base plate temperature should be provided.
Storage temperature	-20�C � +70�C, non condensing

Absolute Maximum Ratings

Supply voltage max.	+26 VDC
Analogue modulation
Voltage range @ 0 � +1 V	-0.5 V � +1.1 V
Voltage range @ 0 � +5 V	-0.5 V � +5.5 V
Voltage range @ 0 � +10 V	-0.5 V � +11.0 V
Digital modulation
Level	-0.5 V � +5.5 V
Maximum operating temperature	+50�C base plate temperature

Quality Standards

EU 2002/95/EC (RoHS)	compliant
EMC standards	VDE 0871-B FCC Rules Part 15-B
Thermal test	2h @ 70�C passive
Burn-in test	30 minutes @ maximum RF power output

Variants List / Ordering Codes

1 The voltage range corresponds to 0 to 100% of the potentiometer pre-adjusted maximum RF output power.

2 A pull-up resistor provides HIGH level, a pull-down resistor LOW level in case of not connected input.

3 Further configurations on request.

Operation Scheme of Analogue and Digital Modulation

Housings

�Standard� Housing, base plate 120 x 70 mm

Connectors

Control Connector

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