DekTec DTA-117 Multi-Standard Modulator with 44 Mhz IF and Digital Output
- Multi-standard modulator with support for most QAM-, OFDM- and VSB-based modulation standards
- Supports all constellations and modulation modes for each supported standard
- Two user-configurable IF outputs; real and imaginary output facilitating quadrature upconversion
- IF outputs are lightly filtered enabling offboard high-quality filtering
Overview
- ATSC, DTMB, DVB-T/H, ISDB-T, QAM
- 44 MHz IF and Digital I/Q Outputs
- Bi-directional DVB-ASI Port
Features
- Multi-standard modulator with support for most QAM-, OFDM- and VSB-based modulation standards
- Supports all constellations and modulation modes for each supported standard
- Two user-configurable IF outputs; real and imaginary output facilitating quadrature upconversion
- IF outputs are lightly filtered enabling offboard high-quality filtering
- Digital baseband I+Q outputs
- Bi-directional DVB-ASI port
- Programming interface (DTAPI) is fully compatible with other DekTec digital-video output adapters
- PCI rev 2.2, 32 bit, 33 or 66 MHz bus
Specifications
Parameter | Value | |
Modulation Bandwidth | 5.0...8.0MHz | |
| MER | 41 dB RMS (DVB-C) 42 dB RMS (DVB-T) | |
IF Output | Frequency | 44.0MHz ± 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 @ 44MHz | |
| DVB-ASI | Connector | 75-Ω BNC |
| Return Loss | ≥15dB (5...270MHz) | |
