ATBM8831 is a single-chip DTMB (China Digital TV Terrestrial Wave Transmission System Standard) demodulation chip released by Qualcomm in the second quarter of 2009, following the Chinese national standard GB20600-2006 "Digital TV Terrestrial Broadcast Transmission System Frame Structure, Channel Coding "And modulation", support single-carrier and multi-carrier mode demodulation, and support terrestrial wave reception of standard definition and high-definition TV signals. The chip has excellent sensitivity and anti-interference ability, can be widely used in indoor and outdoor fixed and mobile applications. ATBM8831 is mainly designed for portable devices, USB TV sticks and handheld terminals.

The chip receives the analog baseband, low-IF or high-IF input from the terrestrial TV antenna, and outputs the transport stream signal of the selected channel (AVS, MPEG2, MPEG4, H.264, etc.).

Typical structure of the receiver

Typical structure of the receiver

ATBM8831 chip system architecture

ATBM8831 chip system architecture

Features

· Comply with national standard

-Support DTMB (China Digital TV Ground Wave Transmission System Standard) single carrier and multi-carrier modes;

-Excellent echo multipath processing algorithm to achieve leading anti-interference performance in single frequency network environment;

-Quickly lock the frequency, realize high-speed channel search and quick channel change;

-Excellent single and multi-carrier high-speed mobile reception performance;

-Ultra-low power consumption to achieve continuous operation with low heat generation;

-Simple software-driven design, very easy to transplant and integrate.

· Simulation

-Integrated 10-bit analog-to-digital converter;

-Integrated phase-locked loop;

-Supports crystals with a frequency range of 28 ~ 32MHz.

· Support tuner

-Support CAN Tuner and Silicon Tuner;

-Support intermediate frequency (36 ~ 37MHz), low intermediate frequency (4 ~ 11MHz) and IQ signal input.

·interface

-Full function I2C bus support;

-Support cascade (by-pass) mode;

-SDRAM embedded with 64MB de-interleaver (De-interleaver).

· Data output-Transport Stream (TS)

-Support parallel and serial TS interface;

-Clock can be configured through registers.

· Comply with the requirements of the EU RoHS directive and China's "Electronic Information Products Pollution Control Measures" (without lead)

· Working voltage: 3.3V (I / O) /1.2V (core)

· Package: BGA100 (8mm × 8mm)

· Chip power consumption: <350mW

Application range

· Portable devices

· USB TV stick

·Handheld Terminal

·Car Equipment

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