AOM Driver A35-Series
5 Watt RF Drivers for Acousto-Optic Modulators
The A35xxx RF driver series provides up to 5 Watt output power. Various types cover a frequency range from 40 to 350 MHz.
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.
Additionally to the analogue modulation voltage a digital modulation control signal can switch on and off the RF power. An operation scheme below 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 65dB.
The driver can be operated with modulation frequencies (analogue and digital) up to 25% of the carrier frequency and 50 MHz maximum.
Optimum EMC shielding and mechanical protection is achieved by an aluminium casing. The base plate serves for mounting as well as for heat dissipation.
Key Features:
- Frequency range 40 to 350 MHz
- RF output power 5 Watt
- RF on/off ratio > 65 dB
- Constant output power design
- Models with a modulation frequency up to 50 MHz available
- Conductive cooling through base plate
- Compact casing, fully shielded (EMC)
Applications:
- Fast modulation components for extra cavity applications, e. g.
laser projection systems
- Frequency shifting
Technical Data
Supply voltage
+24 VDC
Supply current
typ. 1.5 A @ 5 W RF output power
Output impedance
nom. 50 Ω
Maximum RF output power (adjustable)*
Adjustment range
> 5 W (+37 dBm)
< 0.1 W … > 5 W
Frequency accuracy
< ±25 ppm
Harmonics distortion*
< -26 dBc
Analogue modulation**
Impedance
Voltage range @ 50 Ω
RF ON / OFF ratio
50 Ω
0 … +1 V
> 65 dB
Digital modulation**
Impedance
Level
RF ON / OFF ratio
4.7 kΩ (pull-up)
High = ≥ 3V … 5V (= RF on)
Low = 0 … < 2V (= RF off)
> 100 dB
RF output frequency*** [MHz]
40 … <80 80 … <140 140 … <200 200 … 350
Analogue modulation
RF rise time / fall time
(P RF: 10 … 90%) *
< 25 ns < 15 ns < 10 ns < 8 ns
Digital modulation
RF rise time / fall time
(P RF: 10 … 90%) *
< 25 ns < 15 ns < 10 ns < 8 ns
* into 50 Ω load
** other configurations on request
*** standard frequencies: 40, 80, 110, 150, 200 MHz
Connectors, Dimensions, Weight, Cooling
RF output connector
SMA female
Control input connector
Pins 1 and 2, inside linked
Pins 3 and 5, inside linked
Pin 4
Pin A1 (coaxial)
Pin A2 (coaxial)
D-Sub 7W2
GND (case)
+V s (24 VDC)
not connected
Analogue modulation
Digital modulation
Cooling
Conduction
The base plate must be attached to a suitable
heat sink capable of dissipating 36 Watt.
Dimensions [mm]
Casing
Mounting flat
120 x 50 x 36 ****
120 x 70
Weight
360 grams
**** length x width x height
Environmental Conditions
Warm up time
10 minutes for optimum stability
Base plate temperature
+10°C … +60°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
Digital modulation
Level
-0.5 V … +5.5 V
Maximum operating temperature
+65°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
Outline Drawings
Dimensions in mm
商品属性 [操作频率] 40-300 MHz [最大射频功率] 0.5-5.0 W [兼容的声光设备] Fiber-Q,Frequency Shifter,Modulator