DRX 39xyK

Multistandard Demodulator for Analog TV / DVB-T / DVB-C

General Description

The Trident DRX 39xyK is a unique, multistandard, 3-in-1 demodulator. Designed for a wide range of hybrid receiver applications, the DRX 39xyK demodulates analog/ DVB-T/DVB-C television broadcast signals. Versions with optional integrated audio demodulator and stereo decoder are available as well. Supported standards include worldwide analog broadcast (ATV), DVB-C (ITU-T J.83, annex A, C) and DVB-T (ETS 300744).

The DRX 39xyK combines existing, field proven Trident demodulator IP into a single-chip device. The IF-input signal is demodulated and output as either Transport Stream (TS), or analog CVBS and SIF signals. Versions with the optional integrated stereo decoder provide digital audio via standard I2S interface.

The DRX 39xyK provides significant PCB real estate benefits. Combining three demodulators into a single chip, Trident offers the world’s smallest multistandard hybrid demodulator in a QFN64 package (9×9 mm).

The DRX 39xyK is a member of the Trident DRX family, offering pin- and SW driver compatibility to the Trident DRX 394yJ (NTSC/ATSC/QAM demodulator).

Designed with the complete system solution in mind, DRX 39xyK enables highly optimized adjacent channel performance by integrating a broadband input power detector. The API-based software interface enables effortless implementation into any system. Compatibility with existing Trident demodulator products reduces engineering costs by maximizing the re-use of existing software and product experience.

Block Diagram

DRX-39xyK-s

Key Features

Main Features

  • DVB-T demodulator with excellent adjacent- channel and co-channel performance, exceeding receiver specifications: NorDig-Unified v1.0.3, DTG, EICTA, and others
  • Digital cable demodulator with outstanding phase noise performance supporting ITU-T J.83 annex A (DVB-C, EuroDOCSIS) and C (Japan)
  • Field-proven analog standard (ATV) NTSC / PAL / SECAM VIF demodulator, with CVBS output
  • Field-proven ATV (AM / NICAM / FM) audio demodulator with SIF output
  • Field-proven audio demodulator/ decoder (AM / NICAM / FM / BTSC / A2) (optional)
  • FM radio with RDS / RBDS
  • Integrated microprocessor provides a high-level command interface to the host processor and downloadable microcode

Interfaces

  • RF and IF (optional) gain control outputs to tuners
  • Sense input for tuner IF output signal
  • Parallel and serial MPEG TS outputs
  • Analog CVBS and SIF output
  • I2S digital audio output for analog TV audio (fs = 8…48 kHz/ 16…32 bit)
  • I2C slave interface
  • JTAG
  • GPIO
  • Low power consumption
  • Support for low-/near-zero IF
  • Selectable I2C addresses
  • Packages:
    • QFN48
    • QFN64
    • PMQFP64

Applications

  • IDTV/hybrid TV receivers
  • Set-top boxes
  • PVR/DVD-RW
  • PC-TV cards
  • USB sticks
  • NIM

Family Members

Versions

Part
Package
DVB-C
DVB-T
Analog Demod
Stereo Decoder
DRX 3913K
QFN48
1
1
0
0
DRX 3916K
QFN64, PMQFP64
0
1
1
0
DRX 3918K
QFN64, PMQFP64
0
1
1
1
DRX 3923K
QFN64, PMQFP64
1
1
1
1
DRX 3926K
QFN64, PMQFP64
1
1
1
0

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