STC-75311405-10-C1

W-Band Down-Converter, 75 to 110 GHz, 3 dB Gain
STC-75311405-10-C1 is a W-Band down-converter that converts
millimeterwave signals from the frequency range of 75 to 110 GHz to thebaseband at 6 to 41 GHz. The down-converter has a built-in phaselocked oscillator (PLO), which is externally referenced at 10 MHz. The
down converter also integrates a PIN diode based SPDT switch at theRF input for bypassing in order to monitor the receiving signal level. Theswitch is controlled by TTL signal and the bypassing “on” is at TTL “Low.”
The bypassing loss is 4 dB typical and 6 dB maximum. The RF ports forthe downconverter is WR-10 waveguides with UG-387/U-M anti-cocking
flange. The IF output is a K(F) connector and PLO reference signal input
connector is an SMA (F) connector. A wall mount AC adapter is included
for AC powering.

Electrical Specifications:Parameter

Minimum

TypicalMaximum

RF Input Frequency

75 GHz110 GHzIF Frequency Output

6 GHz

41 GHzConversion Gain @ 75 to 100 GHz

-1 dB

3 dB

10 dB

ECCN

Conversion Gain @ 100 to 110 GHz-6 dB0 dB

10 dB

3A001.b.4

Combined Harmonic Power-70 dBm-65 dBm

Spurious-40 dBc-35 dBc

FEATURES

Noise Figure @ 75 to 100 GHz

11 dB

15 dB

Noise Figure @ 100 to 110 GHz

13 dB

17 dB

••

Bypass Insertion Loss

4 dB

6 dB

Bypass “ON”
Converter Mode

TTL “Low”
TTL “High” or No Input

TTL Low

0 VDC+0.8 VDC

TTL High+2.7 VDC+5.0 VDC

Switch Isolation

15 dB

RF Input P1dB

-20 dBm+10 dBm

RF Input Damage Level (Converting)-15 dBm

Reference Input Power-5 dBmTest LabInstrumentations
Auto Test Set

SUPPLEMENTAL DETAILS+3 dBm+10 dBm

Return Loss

10 dB
100 VAC

Specification Temperature
Operating Temperature•••

10 MHz

Reference Damage Level
Power Supply (AC Adapter Provided)

APPLICATIONS

20 dB

RF Input Damage Level (Bypassing)
Reference Frequency

Full Waveguide Band CoverageHigh IF Frequency Range

240 VAC
+25°C

0°C

+50°C

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.6
1/4

STC-75311405-10-C1

Mechanical Specifications:
ItemSpecification

RF Input/Output PortsWR-10 Waveguide with UG-387/U-M Anti-Cocking Flange

10 MHz Reference Port

SMA (F)IF Port2.92 mm (F)Bias Port

2.5 mm DC Jack (AC-to-DC power converter included)

FinishBlack Anodized

Weight4.4 lbs

Size10.0” (L) x 6.0” (W) x 1.90” (H)OutlineTC-W-A-2

Block Diagram:

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.62/4

STC-75311405-10-C1

Typical Conversion Gain & Noise Figure vs. Frequency
Bias: +12 VDC/750 mA; RF Input: -40 dBm
1530Conversion Gain25

Noise Figure

520015-510-105-15

Noise Figure (dB)Gain (dB)

1007580859095100105110

Frequency (GHz)

Mechanical Outline: (Unless otherwise specified, all dimensions are in inches [millimeters])

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.63/4

STC-75311405-10-C1

NOTE:••On condition that test data is provided it is collected from a sample lot. Actual data may vary slightly from unit to unit. Alltesting is performed under +25 °C room temperature.
Eravant reserves the right to change the information presented without notice.

CAUTION:•••

Exceeding absolute maximum ratings of the device will damage the device.
If a waveguide is present, any foreign objects in the waveguide will cause performance degradation and may damage ordestroy the unit.
For 1.35 mm, 1.85 mm, 2.4 mm, 2.92 mm, and SMA connectors proper torque should be applied: 8.0 ± 0.15 inch-pounds(0.90 ± 0.02 Nm). Torque wrench model SCH-08008-S1 is highly recommended

www.eravant.com | 424-757-0168 | support@eravant.com
Copyright © 2023 by Eravant

Final Rev 1.6
4/4