Description
DTA-116 Features
- Multi-standard modulator with support for all popular QAM-, OFDM- and VSB-based modulation standards
- Two user-configurable 36-MHz IF outputs: real and imaginary signals, facilitating external quadrature upconversion
- Digital baseband I+Q outputs (optional)
- Independent bi-directional DVB-ASI port
- API is fully compatible with other DekTec digital-video output adapters
- PCI rev 2.2, 32 bit, 33 or 66 MHz bus
Modulation Standards (included)
- 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
Modulation Standards (optional)
- ADTB-T / DTMB GB 20600-2006
- CMMB GY/T 220.1/2-2006
- DVB-T2 EN 302 755
- IQ I/Q sample playout
- ISDB-T ARIB STD-B31
- DVB-C2 EN 302 769
DTC-300 – StreamXpress Playout and Control Software (included)
- Low-cost, high-performance playout software
- Endless play with optional automatic correction of continuity-counter, PCR/PTS/DTS and TDT/TOT fields
- SOAP-based remote control to automate StreamXpress operations (DTC-302-RC option)
- Saving and restoring playout parameters using XML-based settings file
- Reproducible injection of errors in the transport stream with adjustable error rate
- Easy-to-use control of modulation and channel simulation parameters
DTC-305-CM – Fading and AWGN Simulator (optional)
- Software option to add real-time channel simulation to the DTA-116 and to other DekTec modulator cards
- Addition of Additive White Gaussian Noise (AWGN) with well-defined SNR to the output of DekTec modulators
- Distortions are applied in the digital domain for consistent operation and repeatability
- Simulates up to 32 fading paths of either Constant Delay, Doppler, Rayleigh Jakes or Rayleigh Gaussian path distortion on the modulated RF signal
- Simple interface to add calibrated noise to the output of a DekTec modulator card
- Noise bandwidth is adjusted to suit the modulation type
DTA-116 Applications
- Digital I/Q sample generator
- High-fidelity modulator
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
Specifications
KEY ATTRIBUTES
Modulation bandwidth 5.0 .. 8.0MHz
MER 41dB RMS (DVB-C), 42dB RMS (DVB-T)
IF output:
Frequency 36.0MHz ±1ppm
Connector 50-Ω BNC (2x)
Return loss >20dB (5 .. 70MHz)
Level (QAM) -11dBm ±1dB
Level (OFDM) -14dBm ±1dB
Phase noise <-115dBc @ 10kHz; <-105dBc @ 1kHz
Spectral purity >40dB (0 .. 1GHz)
Digital output:
Connector 14-pins header
Signal level LVDS
Data bus 16-bit I+Q @ 36MHz
ASI:
Connector 75-Ω BNC
Return loss >15dB (5 .. 270MHz)
Ordering Info
All USA orders will be shipped from our USA warehouse.
All other orders will be shipped from Canada.
DTA-116-SP – Multi-Standard 36-MHz IF output Modulator for PCI Bus with StreamXpress player software.
Includes modulation options: ATSC VSB, DVB-C, DVB-T / DVB-H, QAM (Annex A/B/C)
AVAILABLE OPTIONS:
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