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Innofidei Integrated CMMB Receiver IF208


1.1 Overview
Innofidei integrated CMMB receiver IF208 (IF208 for short) is the second generation
of Innofidei’s highly integrated single-chip OFDM receiver for China Mobile
Multimedia Broadcast (CMMB) and China Mobile MBBMS receiver system. It
contains an RF U-band tuner, a demodulator, and a China Mobile MBBMS user
authentication module (UAM). Different from IF202, IF208 has UAM built in for
China Mobile MBBMS. IF208 can be used in different types of mobile broadcast
reception terminals, such as mobile phone, Netbook, and USB dongle.
IF208 provides outstanding channel performance and the Doppler compensation
function designed specifically for multimedia broadcast receivers adopting
the CMMB standard. IF208 also provides excellent echo performance, making it
ideal for operation in single-frequency networks (SFNs) and multi-frequency
networks (MFNs). The patented error-correction algorithm within the LDPC further
increases BER performance and improves the overall system robustness in
fixed and mobile environment.
As a result of many innovations in low power mixed-signal design, IF208
achieves a benchmark performance (such as 550 Hz Doppler and long echo performance)
that exceeds the DVB-H MBRAI specification by large margin.


1.2 IF208 Application
IF208 can be used in:
• Mobile multimedia terminals
• Cellular phones and PDAs
• Ultra mobile personal computers (UMPCs)
• Mobile Internet devices (MIDs)
• Netbooks
• USB dongles


1.3 IF208 Key Features
IF208 Demodulator
• Compliant with CMMB standard GY/T 220.1-2006 and GY/T 220.2-2006
• Automatic power-saving
• Two ADCs integrated for IQ signal sampling, with a data width of 8 bits and
a sample rate of 30Msps.

• SPI/SDIO interface (slave mode) for data/command transfer and firmware
downloading
• I2C (slave mode, up to 400Kbps for command transfer)
• Supporting BPSK, QPSK, and QAM-16 modulation
• Supporting LDPC error correction (mode1/2 and mode 3/4)
• Supporting RS error correction
• MMIS protocol (Innofidei-proprietary)
• GPIO integrated for tuner time slicing control
• PWM logic integrated for tuner AGC control
• Two logic channels provided, each can store the data of up to four QPSK
time slots.
RF Tuner
• Zero-IF single-conversion architecture, eliminating the needs for all SAW filters
• Covering the entire UHF band (470MHz to 860MHz)
• AGC dynamic range from -102 to 0dBm
• Fast fractional-N PLL, low phase noise VCO
• Bandwidth-adjustable baseband low-pass filter
• Low power consumption
UAM
• Compliant with CMCC standard: Terminal Specification for Mobile Multimedia
Broadcast/Mobile TV Service
• Certified by CMCC
• User authentication and decryption
Package
• TFBGA100 package


if208_datasheet_v107.pdf
下载: pdf 文件
 


 
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