RealTek RTL2832U

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Revision as of 02:57, 26 January 2013 by Sonic (talk | contribs) (→‎Drivers)
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General Description

(from the specifications page at RealTek [1]) The RTL2832U is a high-performance DVB-T COFDM demodulator that supports a USB 2.0 interface. The RTL2832U complies 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 IF (Intermediate Frequency, 36.125MHz), low-IF (4.57MHz), or Zero-IF output using a 28.8MHz crystal, FM/DAB/DAB+ Radio Support. Embedded ADC (Analog-to-Digital Converter).


  • COFDM compliant 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


At present drivers of various quality can be found on the net although none have been known to work consistantly.

For the Zazz ezcap DVB-T FM DAB and Twintech UT30 the following driver works :


The driver at [[3]] seems to work fine under Ubuntu 12.04

Another version of it has support for the R820T tuner and is compatible up to kernel 3.8

Original Vendor-released driver


Missing drivers

External Links