Panasonic MN88413 Datasheet
Digital Broadcast Reception LSI
MN88413
Channel Decoder LSI for Digital Satellite Broadcast Reception
■ Overview
The MN88413 is a channel decoder LSI that integrates functions for digital satellite communications and broadcast
reception on a single chip.
The MN88413 supports both the Digital Video Broadcast (DVB) and the Digital Satellite System (DSS
It also supports a variable transport rate that can be set under program control using a fixed system clock frequency and
can implement a channel decoder with a minimal number of external components.
■ Features
•
Can be used in systems conforming to DVB, in US DIRECTV
communication systems.
•
Integrates a 2-channel A/D converter, a variable rate QPSK demodulator, and forward error correction
(FEC) on a single chip.
•
Supports transfer rates from 1 Mbps to 90 Mbps.
•
On-chip I/Q baseband signal offset voltage circuit and on-chip reference voltage circuit for the A/D and D/A converters.
•
On-chip PLL circuit
•
BER monitor function
2
•
I
C bus master circuit for tuner control
•
Supports LNB control clock and DiSEqC 1.0/1.1 and can output DiSEqC messages.
•
General-purpose input and output ports
•
On-chip boundary scan test circuit conforming to IEEE 1149.1
systems, and in single carrier per channel (SCPC)
) specifications.
■ Applications
•
Digital satellite broadcast receivers
Note: DSS and DIRECTV are registered trademarks of DIRECTV, Inc.
1
MN88413 Digital Bloadcast Reception LSI
■ Block Diagram
VSS0-6
VDD0-6
VSSA0-2
VDDA1-2
VSSC0-19
ADVRT
ADVRB
IVRM
QVRM
DAVR
DAIR
TIN3-7
TEST0-2
NRST
SEL
QIN
PLL0-2
CPO
DACAGC
ADCIIN
ADC
PLL
Digital AFC
Offset canceler
Clock
reproduction
XI
XO
CKI
Rate converter
Bandwidth limiter
I2C I/F
(Master)
MSCL
CSEL0-1
MSDA
Roll-off filter
QPSK demodulator
I2C I/F
SCL
SDA
SADR0-1
detector
Viterbi decoder
Frame synchronization
TAP
controller
(JTAG)
TDI
TCK
TMS
TRST
De-interleaver
Reed-Solomon decoder
LNB
controller
TDO
NERRF
FSYNC
DO0-7
DEN
BYTCK
PSYNC
NPERR
Energy dispersal decoder
DAC
SCK
OP0-2
LNBCK
LNB
2
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