Systems Engineering & Management Co. (800) 995-0636 x11251430 Vantage Court (760) 727-5600 (fax)Vista, CA 92081-8596 www.semco.com

Technology and Innovation for a Safer WorldJune 2013

CDC100A DOWN-CONVERTER

Features

1415-2485 MHz & 4400-5250 MHz Input

1415-2485 MHz & 300-1150 MHz Output

Switched Internal/External 10 MHz Reference(User Specified 50 or 75 ohms)

+20 dBm Maximum Safe Input Level

+10 dBm P1 Compression Point

>50 dBc Spurious Response & Image Rejection

+/- 1.5 dB Frequency Response (C-IF Output & Bypass)

IRIG 106-11 Tier II Phase Noise Compliant

Pedestal Mounted IP67-rated Module Option

Rack-Mount CDC100A Option

Pedestal-Mounted CDCM100A Option

DescriptionThe 1U Rack-Mount CDC100A Down-Converter is part of SEMCO's C-Band series that has been designed to

meet the requirements of IRIG 106-11. The CDC100A accepts signals from 1415 to 2485 MHz and a C-Band

input from 4400 to 5250 MHz. The 1415 to 2485 MHz signals bypass the C-Band down-conversion circuits and

provide RF outputs through a high performance diplexer. The 4400-5250 MHz input signals are mixed with an

internal 5550 MHz Local Oscillator, that complies with IRIG 106-11 Tier II requirements, and output as an

inverted spectrum from 300 to 1150 MHz (C-IF Band).

Available configurations include the CDC100A-2 dual channel down-converter and the CDC100A-4 quad

channel down-converter.

CDCM100A Antenna Pedestal-Mounted Option - The CDC100A is available in a module design for installation in

antenna pedestals (CDCM100A-2). This configuration is an IP67-rated pressurized module with the same

excellent performance and features of the rack-mount 1U CDC 100A-2, and with the added ruggedized design to

withstand the harsh environmental conditions encountered when mounted to an antenna pedestal.

Systems Engineering & Management Co. (800) 995-0636 x11251430 Vantage Court (760) 727-5600 (fax)Vista, CA 92081-8596 www.semco.com

Technology and Innovation for a Safer World

CDC100A SPECIFICATIONS

Specifications subject to change without notice

ElectricalPerformanceInput Frequencies (Type “N” Connectors) Output Frequencies (Type “N” Connectors)

Maximum Safe Input LevelP1 Compression Point (C-Band) Noise FigureVSWRImpedanceDiplexer Characteristics

Down-Converted C-Band Gain Frequency Response

Spurious Response Image Rejection Phase NoiseLO ReferenceInternal LO Reference Stability External Reference Power Level PowerRequirementsAC Input Power Power Consumption PhysicalDimensions Size (CDC100A)Size (CDCM100A)WeightEnvironmental Operating Temperature Storage Temperature Operating Altitude Storage Altitude Humidity (CDCM100A) Humidity (CDC100A)Shock and Vibration CDCM100A)

Pressurization (CDCM100A)

1415 to 2485 MHz and 4400-5250 MHz1415 to 2485 MHz300-1150 MHz (inverted Spectrum)+20 dBm+10 dBm<10 dB<1.5:150 ohms<1 dB In-Band Loss>49 dB signal rejection at >1415-2600 MHz & 300-1150 MHz>20 dB signal rejection at >2600 & <200 MHz-3 dB+/- 1.5 dB (C-IF Output and Bypass)>50 dBc

>50 dBcIRIG 106-11 Tier II Compliant Internal or External 10 MHz

-8 1 x 10 within 5 minutes of AC Power Application0 to +10 dBm

90 to 240 VAC; 47-63 Hz; Auto Ranging <50 Watts

17”W x 1.75”H x 20”D (Rack-Mount 1U CDC100A) 12”W x 14”L x 4”H (CDCM100A)

<15 lbs (CDC100A and CDCM100A)

-30 degrees C to +55 degrees C -40 degrees C to +70 degrees C

Up to 10,000 feetUp to 45,000 feet

Waterproof 0 to 100% without condensation, rain or snow 0 to 95%, non-condensing

No mechanical or performance degradation when mounted to the moving portion of a tracking antenna0.5 psi nominal; 2 psi maximum