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M88DD6301  -  DTMB/DVB-C Dual-Standard Demodulator

The M88DD6301 is a single-chip DTMB/DVB-C dual-standard demodulator. The device is fully compliant with China GB20600-2006 and Europe DVB-C standards, and supports terrestrial multi-carrier and single-carrier modes, single frequency network (SFN) as well as 6/7/8MHz bandwidths.

The device takes high or low IF from DTMB/DVB-C tuner or zero IF from DTMB tuner. It demodulates the signal, and outputs MPEG transport stream in serial, parallel or DVB-CI format. The implementation of the device is fully done in a set of dedicated circuits with complete performance monitoring, thus excellent reception is ensured even under extreme conditions.

The device is available in a 48-pin QFN package. It has very low power consumption and high integration, which makes it not only suitable for the dual-mode iDTV and STB, but also for the mobile and portable DTV systems.

FeatureApplication

DTMB Demodulator

Fully compliant with GB 20600-2006
Single Frequency Network (SFN) compatible
Multi-carrier and single-carrier modes supported
4QAM-NR, 4QAM, 16QAM, 32QAM and 64QAM supported
FEC rates of 0.4, 0.6 or 0.8, and guard intervals (GI) of 420, 945 or 595 symbols
Time de-interleaving supported (M = 240 or 720)
6 MHz, 7 MHz and 8 MHz channel bandwidths supported
Single AGC for IF or Dual AGC for IF and RF gain control
Timing & carrier recovery and correction; Symbol timing adjustment
Channel estimation and equalization with strong echo cancellation
Complete FEC including LDPC decoding and BCH decoding
Adjacent channel interference and co-channel interference cancellation
Auto spectrum inversion and Auto System Information detection
Lock indication and accessible error rate information for signal quality monitoring

DVB-C Demodulator

Fully compliant with DVB-C and ITU J83 A/C specifications
16, 32, 64, 128 and 256-QAM supported
Symbol rates from 0.87 Mbaud to 7.2 Mbaud
Dual AGC for IF and RF gain control
Front derotator for better low symbol rate performance and relaxed tuner constraints
Automatic spectrum inversion
Excellent adjacent-channel and co-channel interference suppression
Excellent symbol timing offset mitigation and carrier suppression
On-chip FEC
Integrated BER and SNR indication for signal quality monitoring
Lock and interrupt indication available on GPIO

MPEG TS output formats: Parallel, serial and DVB-CI supported

On-chip clock generation from single external crystal or clock

2-wire bus control with up to 4 addresses selectable

Dedicated 2-wire bus repeater to control tuner

Low power consumption with sleep mode available

Green package: 48-pin QFN

DTMB/DVB-C dual standard iDTV

Digital set-top boxes

Mobile and portable applications

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