Click image to view larger

DekTec Multi-Standard Modulator with IF and Digital Output

DTA-117
  • Supports many modulation standards
  • 44-MHz IF and digital I/Q outputs
  • Bi-directional DVB-ASI port
  • Multi-standard modulator with support for most QAM-, OFDM- and VSB-based modulation standards
  • Supports all constellations and modula-tion modes for each supported standard
  • Two user-configurable IF outputs; real and imaginary output facilitating quadrature upconversion
  • IF outputs are lightly filtered enabling off-board 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 66MHz bus
  • Digital I/Q generator
  • High-fidelity modulator
  • IF output for your (OEM) application

KEY ATTRIBUTES
Modulation Bandwidth: 5.0 to 8.0MHz
MER: 41dB RMS (DVB-C) 42dB RMS (DVB-T)
IF output
Frequency: 44.0MHz ±1ppm
Connector: 50Ω BNC (2x)
Return loss: ≥20dB (5 to 70MHz)
Level (QAM): -11dBm ±1dB
Level (OFDM): -14dBm ±1dB
Phase noise: <-115dBc @ 10kHz <-105dBc @ 1kHz
Spectral purity: >40dB (0 to 1GHz)
Digital output
Connector: 14-pins header
Signal level: LVDS
Data bus: 16-bit I+Q @ 44MHz
ASI
Connector: 75Ω BNC
Return loss: ≥15dB (5 to 270MHz)

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: ARIB STD-B31
QAM: J.83 Annex A/B/C

ORDERING INFORMATION
DTC-370: ISDB-T software option
DTC-374-DTMB: DTMB software option
DTC-378T2: DVB-T2 modulation option

Datasheet