DVB-T COFDM Demodulator + USB 2.0

General Description

The RTL2832U is a high-performance DVB-T COFDM demodulator that supports a USB 2.0 interface. The RTL2832U is compatible with NorDig Unified 1.0.3, D-Book 5.0, and EN300 744 (ETSI Specification). It supports 2K or 8K mode with 6, 7, and 8MHz bandwidth. Modulation parameters, e.g., code rate, and guard interval, are automatically detected.

The RTL2832U supports tuners at IF (Intermediate Frequency, 36.125MHz), low-IF (4.57MHz), or Zero-IF output using a 28.8MHz crystal, and includes FM/DAB/DAB+ Radio Support. Embedded with an advanced ADC (Analog-to-Digital Converter), the RTL2832U features high stability in portable reception.

The state-of-the-art RTL2832U features Realtek proprietary algorithms (patent-pending), including superior channel estimation, co-channel interface rejection, long echo channel reception, and impulse noise cancellation, and provides an ideal solution for a wide range of applications for PC-TV, such as USB dongle and MiniCard/USB, and embedded system via USB interface.


  • COFDM compatible with Nordig Unified 1.0.3, D-book 5.0, and ETSI 300-744
  • Supports multiple IF frequencies (4.57MHz or 36.167MHz) and spectrum inversion
  • Includes Radio Support (FM/DAB/DAB+)
  • Includes ISDB-T(SBTVD-T) 1-Seg
  • Supports Zero-IF input
  • Single low-cost crystal for clock generation (±100ppm)
  • Automatic transmission mode and guard interval detection
  • Impulse noise cancellation circuits
  • Automatic carrier recovery over a wide range offset (±800KHz)
  • Superior performance with pre/post/long echo profiles
  • Embedded adjacent and co-channel interference rejection circuit
  • Delayed AGC with programmable Take-Over Point (TOP)
  • 7-bit ADC for RF signals level measurement
  • Hardware MPEG-2 PID filters
  • Infra-red port for remote control and wake-up, protocols supported are:
    • Microsoft RC6 protocol
    • NEC, Sony, SIRC, RC-5 protocol
  • Eight general purpose I/O ports
  • USB 2.0 Interface
    • Supports USB Full/High speed
    • Configurable vendor information via external EEPROM
    • Passes USB-IF certification
  • Signal 3.3V external power is required
  • 48-pin QFN (6x6 mm2) Green Package


  • Portable DTV device
  • USB dongle
  • MiniCard