DTA-115

 

Multi-Standard Modulator with VHF/UHF Upconverter for PCI Bus

DekTec DTA115

Modulation Standards

ATSC VSB ATSC A/53E
ADTB-T / DTMB GB 20600-2006
DVB-C EN 300 429
DVB-T / DVB-H EN 300 744
DVB-T2 EN 302 755
IQ Direct I/Q sample playout
ISDB-T / ISDTV ARIB STD-B31
QAM ITU-T J.83 Annex A/B/C

Key Attributes

RF Frequency Range 47 .. 862 MHz ±1 ppm
Bandwidth 5 / 6 / 7 / 8 MHz
MER ~40 dB
RF Step Size 100 kHz
RF Signal to Noise (S/N) 44 dB typ. @ 474 MHz

Main Output

BNC

Return Loss >15 dB (47 .. 862 MHz)
Output Level (QAM) -31.5 .. 0 dBm ±1 dB
Output Level (OFDM) -34.5 .. -3 dBm ±1 dB
Phase Noise < -90 dBc @ 10 kHz
Spectral Purity > 50 dB (47 .. 862 MHz)

Monitor Output

BNC

Return Loss >15 dB (47 .. 862 MHz)
Output Level (QAM) -27.5 dBm } 2 dB
Output Level (OFDM) -30.5 dBm } 2 dB

DVB-ASI Port

BNC

Return Loss >15 dB (5 .. 270 MHz

Datasheets:

DTA-115 white paper DTC-300 StreamXpress white paper

Related Software

DTA-115 Features

 

  • Multi-standard modulator with support for all popular QAM-, OFDM- and VSB-based modulation standards
  • All-channel upconverter 47 .. 862MHz covering entire VHF and UHF band
  • Output amplifier with programmable 0 .. 31.5dB attenuator in 0.5dB steps
  • Use DTA-Plus to extend output-level range
  • Independent bi-directional DVB-ASI port
  • Monitor output for direct connection to the antenna input of a digital receiver
  • API is fully compatible with other DekTec
  • digital-video output adapters
  • PCI rev 2.2, 32 bit, 33 or 66 MHz bus

DTA-115 Applications

  • True multi-standard test generator
  • Signal validation: check out whether your receivers can handle a new transport stream

 

PC Requirements

  • P4@2GHz minimum, or equivalent AMD
  • Core 2@2GHz minimum for DTMB, DVB-T2 and channel simulation
  • 512 MB RAM minimum

Block Diagram

DTA-110-T Technical diagram

 

DTU-215 Options:

DTA-115-SP Multi-standard VHF/UHF modulator, ASI port for PCI with StreamXpress player software
DTA-115-GOLD DTA-115 with all current and future modulation options, channel simulation, StreamXpress including remote control, DtJitter, DtTV, DtGrabber+ and StreamXpert
DTA-PlusVHF/UHF booster/attenuator for DTA-115
DTC-305-CM XpressSim channel-modelling option
DTC-370-ISDB ISDB-T modulation option
DTC-371-IQ IQ samples playout option
DTC-374-DTMB DTMB modulation option
DTC-375-CMMB CMMB modulation option
DTC-378 T2Xpress DVB-T2 modulation option
DTC-379 C2Xpress DVB-C2 modulation option