ATBM8810 DTMB Demodulator


Products Introduction

ATBM8810 is a single chip DTMB demodulator chip released in the third quarter 2008 by AltoBeam. It¡¯s designed for the multi-carrier modes following GB20600-2006 Framing Structure, Channel Coding and Modulation for Digital Television Terrestrial Broadcasting System, while supporting standard and high-definition terrestrial digital TV reception. The chip has excellent sensitivity, can be widely used in indoor and outdoor fixed and mobile applications. ATBM8810 mainly designed for digital televisions, set-top boxes and vehicle-carried receivers, etc.
The demodulator chip receives IQ, Low-IF or IF signals input through the antenna and output the transport stream from selected channel, e.g. AVS, MPEG2, MPEG4, H.264 and etc.

 

Typical structure of receiver

 

Block diagram of ATBM8810 chip

Function features

  • Entirely meet the GB standard

    • Fully support DTMB multi-carrier modes of GB20600-2006;

    • Optimize the signal reception for various conditions (such as impulse noise, echo, attenuation, etc.);

    • Excellent multi-path performance and the sensitivity performance;

    • Excellent Echo performance, which is particularly important in single-frequency network;

    • Outstanding co-channel performance and anti-adjacent channel interference performance.

  • Analog part

    • Integrated 10-bit analog-to-digital converter (ADC);

    • Integrated phase-locked loop;

    • Supporting the crystals with frequency range of 28-32MHz

  • Supported tuners

    • Supporting both CAN Tuner and Silicon Tuner;

    • Supporting intermediate frequency (36-37 MHz) Low-IF (4-11 MHz) and IQ signal input.

  • Interface

    • Full-functional support for I2C bus;

    • Supporting by-pass mode.

  • Signal output-- Transport Stream (TS)

    • Supporting parallel and serial interface TS

    • Clock can be configured through the register

  • Meeting the EU RoHS Directive and China¡¯s requirements, "Electronic Information Products Pollution Control Measures" (unleaded)\

  • Working Voltage: 3.3V£¨I/O£©/1.2V

  • Package form: LQFP128£¨14mm¡Á20mm£©

  • Chip power consumption£º<250mW

Scope of application

  • Digital TV Receiver (TV Set)

  • Digital TV set-top box (STB)

  • Car equipment