Schneider DTA 112 Modulator Upconverter PCI Card

Product Overview

The DTA 112 converts baseband signals to higher frequency outputs. You will find this PCI card in test equipment and communication systems. It accepts analog I/Q inputs from a baseband generator. Furthermore, this card upconverts those signals to the L-band range. Therefore, it enables direct connection to satellite modems or receivers.

Technical Specifications

The table below lists all key parameters for this modulator upconverter PCI card.

Parameter	Value / Description
Full Model	DTA 112
Category	Modulator Upconverter PCI Card
Dimensions (W x H)	17.5 cm x 10.7 cm (6.89 in x 4.21 in)
Weight	0.28 kg (0.62 lb)
Bus Interface	32-bit PCI, 33 MHz, 5V only
RF Output Connector	One SMA female (50 ohm)
Baseband Input	One 9-pin D-sub for I/Q signals
LO Input	One SMA female for external reference
Onboard Components	22 resistors, 18 capacitors, 6 inductors, 2 mixers, 1 PLL
Energy Storage	None (no electrolytic capacitors)
Operating Voltage	5V DC ±5% (from PCI bus)
Current Draw	0.5 A maximum from +5V rail
Output Frequency Range	950 MHz to 2150 MHz
Input IF Frequency	70 MHz or 140 MHz (selectable)
Output Power	-10 dBm to +5 dBm (adjustable)
Phase Noise	-85 dBc/Hz at 10 kHz offset
Mounting	PCI bracket with one slot cover

The DTA 112 stores no energy internally at any time. Therefore, you can insert or remove this card without discharge delays. Use the SMA connector for all RF output cabling. Meanwhile, the 9-pin D-sub accepts differential I/Q baseband inputs.

Installation and Compatibility

You can install this card into any 5V-only PCI slot. Insert the DTA 112 carefully into the slot until the bracket seats. Then connect the RF output to your spectrum analyzer or modem. Always apply a 50 ohm termination to unused SMA ports.

The card requires a stable external LO reference at 10 MHz. It automatically locks the internal PLL to this reference. The DTA 112 replaces older DTA 100 series upconverters without driver changes.

Environmental and Safety Data

The DTA 112 operates from 0°C to +50°C. It requires passive airflow inside the PC chassis. The component side has no conformal coating. Consequently, you should keep this card away from moisture. Avoid touching the gold PCI edge connector with bare hands.