DTA-112Modulation Standards
| ATSC VSB | ATSC A/53E |
| DVB-C | EN 300 429 |
| DVB-T / DVB-H | EN 300 744 |
| QAM | ITU-T J.83 Annex A/B/C |
Key Attributes
| RF Frequency Range | 47 .. 862 MHz ±1 ppm |
| Bandwidth | 5 ... 8 MHz |
| MER | ~40 dB |
| RF Step Size | 100 kHz |
| RF Signal to Noise (S/N) | 44 dB typ. @ 474 MHz |
Main Output |
50-Ω BNC |
| Return Loss | >15 dB (47 .. 862 MHz) |
| Output Level (QAM) | -31.5 .. 0 dBm ±2 dB |
| Output Level (DVB-T) | -34.5 .. -3 dBm ±2 dB |
| Phase Noise | < -90 dBc @ 10 kHz |
| Spectral Purity | > 50 dB (47 .. 862 MHz) |
Monitor Output |
75-Ω BNC |
| Return Loss | >15 dB (47 .. 862 MHz) |
| Output Level (QAM) | -27.5 dBm ±3 dB |
| Output Level (DVB-T) | -30.5 dBm ±3 dB |
DVB-ASI Port |
75-Ω BNC |
| Return Loss | >15 dB (5 .. 270 MHz) |
Data Sheet
LeafletList Price
| DTA-112-SP | € 1.260 |
| QAM/DVB-T modulator VHF/UHF upconverter for PCI bus with StreamXpress player software | |
| XpressSim channel-modelling option |
Prices exclude applicable sales tax, shipping charges and
customs duties. Quantity discounts are available, please request a quotation.
DTA-112
ATSC / QAM / DVB-T Modulator
with VHF/UHF Upconverter
for PCI Bus
DTA-112 Features
- Cost-effective variant of DTA-115 with support for ATSC, QAM-A/B/C and DVB-T
- All-channel upconverter 47 .. 862MHz covering entire VHF and UHF band
- Output amplifier with programmable 0 .. 31.5dB attenuator in 0.5dB steps
- Bi-directional DVB-ASI port
- Supports all constellations and modulation modes for each supported standard
- Channel simulator option with AWGN and up to 20 echo paths
- Monitor output for direct connection to the antenna input of a digital receiver
- Programming interface (DTAPI) is fully compatible with other DekTec digital-video output adapters
- PCI rev 2.2, 32 bit, 33 or 66 MHz bus
DTA-112 Applications
- Driving set-top or handheld receivers for demos, at shows, in electronics stores, for software development, repair, production testing or performance testing
- Signal validation: check out whether your receivers can handle a new transport stream
- Create your custom application with direct RF output
PC Requirements
- P4@2GHz minimum, or equivalent AMD
- Core 2@2GHz minimum for DVB-T and channel modelling
- 512 MB RAM minimum
- SDK for Windows-2000/XP/2003/Vista and Linux
Block Diagram
