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w/Pull-Down
Resistor
Output w/
MCKO
pull-Down
Resistor
Output
SPDIFO
w/Pull-Down
Resistor
Power Pins
AVDD_DVI
3.3V Power
AVDD_MPLL
3.3V Power
AVDD_AUPLL 2.5V Power
AVDD_PLL
3.3V Power
VDDP
3.3V Power
VDDC
2.5V Power
GND
Ground
2.4 MSD809 Description：
GENERAL DESCRIPTION:
The MSD809 is a DTV receiver, which contains a digital receiver compatible with
ATSC 8-VSB mode for terrestrial broadcasting and ITU-J.83B which is in compliant
with 64-QAM and 256-QAM modes for digital cable appliances. It achieves
extremely high performance employing direct IF sampling architecture, robust
synchronization, and robust channel equalization. It contains a 12-bit A/D converter
and a PWM generator for automatic gain control. A host interface with an I2C bus is
also included to control the behavior of the MSD809.
FEATURES：
Integrated 8-VSB and 64/256QAM Receiver
●
Direct 44MHz IF sampling scheme from tuner
Internal digital SAW filter for reduction external IF circuitry
12-bit A/D converter for sampling
MPEG-2 transport output with parallel/serial mode
GPIO control for tuner bypass mode
Enhanced FEC architecture with efficient high performance
Segment error rate measurement from the output of RS decoder
Audio Master Clock Output
Audio SPDIF Output; 4~12 mA Driving
Strength Programmable by User
DVI Power Supply
Master PLL Power Supply
Audio PLL Power Supply
PLL Power Supply
Digital Output Power Supply
Digital Core Power Supply
System Ground
100
101
4, 29, 113,
119, 126
32
106
123
39, 53, 65, 73,
86, 88, 90, 102
67, 75, 92
5, 30, 31, 54,
66, 74, 87,89,
91, 103-105,
107, 110,
116, 122, 127
18
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