3307 series

With an operating frequency of 80–350 MHz, an 4 W output into a 50-ohm load, and analog and digital modulation.

Full Product Description

Operating frequency:: 80–350 MHz
RF power:: 4 W

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Product description

The driver can be operated with modulation frequencies (analog and digital) up to 25% of the carrier frequency and 50 MHz maximum at the higher carrier frequencies.

Optimum EMC shielding and mechanical protection are achieved by an aluminium casing. The base plate serves for mounting and heat dissipation purposes.

Many options are available with this driver including frequency tuning, automatic level control (ALC) and an external amplifier that can boost output power up to 20 Watts.

Key features

RF on/off ratio ≥ 35 dB (Digital Modulation)
RF on/off ratio ≥ 35 dB (Analogue Modulation)
Constant output power design
Models with a modulation frequency up to 50 MHz available
Conductive cooling through base plate
Compact casing

Specifications

Name	Value
Operating frequency	80–350 MHz
Supply voltage	+24V DC, +28V DC
Supply current	See table
Output impedance	Nom: 50 Ω
RF power	4 W
Frequency accuracy	± 0.1%
Harmonic distortion	Into 50 Ω load: ≤ -20 dBc
Analogue modulation impedance	Nom: 50 Ω
Analogue modulation voltage range	@ 50 Ω: 0 … +1 V ᴵᴵᴵ
Analogue modulation RF ON / OFF ratio	≥ 35 dB ᴵⱽ
Digital modulation impedance	Nom: 50 Ω
Digital modulation level	Standard TTL ⱽ
Digital modulation RF ON / OFF ratio	≥ 35 dB
Rise/fall time	See table
Input impedance	Frequency Tuning: Nom: 1 kΩ ⱽᴵᴵᴵ
FM Bandwidth	3 dB: 90 kHz
Frequency	See table for range
RF output	See table
Output reference frequency	Fc divided by 256 (Part number -21)
Cooling	See table
Dimensions	Inches (L x W x H): 4 x 1.12 x 3.15, mm (L x W x H): 102 x 29 x 80
Weight	Nom: 0.53 lbs, 0.24 kg
Warm-up time	Nom: 5 minutes
Base plate temperature	0° C to +60° C (For optimum output power stability constant base plate temperature should be provided)
Storage temperature	-25°C to +85°C (non condensing)
Supply voltage	Absolute max: +28 VDC
Analogue modulation	Absolute max: -3.0 V to +3.0 V
Digital modulation	Absolute max: -4.3 V to +4.3 V
Operating temperature	Absolute Max: +65°C (base plate temperature)

Technical Data

Supply Current
550 mA nom. with Pout	0.35-1.5 W @ 24 V
550 mA nom. with Pout	0.35-1.5 W @ 28 V
700 mA nom. with Pout	2.0-4.0 W @ 24 V
700 mA nom. with Pout	2.0- 3.0 W @ 28 V ⱽᴵ
2000 mA nom. with Pout	7.0 W @ 24 V ᴵ
2700 mA nom. with Pout	20 W @ 24 V ᴵ

ᴵ 7W and 20W versions use an external amplifier.
ᴵᴵ Into 50 Ω load
ᴵᴵᴵ Part numbers -52 and -58 are ≤ -30 dBc
ᴵⱽ Part number -40 is ≥ 42 dB
ⱽ Part numbers -12, -43 are (OFF: <+0.3V, ON: +1.0V)
ⱽᴵ Part numbers -03, -18, -22, -31, -44, -69: 550mA nom.
ⱽᴵᴵ Other custom frequencies are available
ⱽᴵᴵᴵ Part numbers -03, -10, -21, -22, -31, -38, -43, -69: 10KΩ

RF Rise/Fall Times
(Rise = 10% to 90%)
(Fall = 90% to 10%)
12 nsec	80 MHz
9 nsec	110 MHz
7 nsec	150 MHz
5 nsec	200 MHz
4 nsec	260 MHz
4 nsec	350 MHz

Connectors

RF output connector	SMA (female)	Part number -12 & -43 have SMB (male)
Modulation connector	SMB (male)	Part numbers -12, -29 & -43 have SMA (female)
Frequency Tuning connector	SMC (male)
Reference Frequency connector	SMC (male)
ALC Connector
Input	Solder terminal (filtered feed-thru)
Ground	Solder lug
Power Supply connector
Input	Solder terminal (filtered feed-thru)	Part numbers -45 & -50 have Mini-Universal Mate-N-Lok connector
Ground	Solder lug	Part numbers -45 & -50 have Mini-Universal Mate-N-Lok connector

Frequency tuning

Frequency range	Input voltage	Notes
50 – 100 MHz	+1.5 - +15 V nominal	Part numbers -04, -25 and -68
75 – 150 MHz	+1.5 - +15 V nominal	Part numbers -23, -49 and -59
150 – 280 MHz	+2.0 - +15 V nominal	Part numbers -17, -28 and -48
200 – 380 MHz	+1.0 - +15 V nominal	Part numbers -62 and -63
270 – 430 MHz	+2.5 - +12 V nominal	Part number -70

ALC (Auxiliary Level Control)

Input Impedance	Nom: 1 kΩ	Part numbers -03, -10, -21, -22, -31, -38, -43, - 69: 10KΩ
ALC Bandwidth	Nom: 35 kHz

RF Ouput (0 W – Full power)	ALC Voltage level
+24 V (Vcc)	0 – +21 V nominal
+28 V (Vcc)	0 – +25 V nominal
+28 V (Vcc)	0 – +5 V nominal	Part numbers -03, -31, -38 and -43
200 – 380 MHz	0 – +10 V nominal	Part numbers -10, -21, -22 and -69
270 – 430 MHz