Sanyo EP58B - Manual (Page 4)

LC74152B
5 6 SANYO TV . VCR SANYO TV . VCR
LC74186E
16KB 16KB
OPB
PLB
PPC405core
VIDEO
CPUIF
27MHz
Host CPU
TSIN1
TSIN2
TSOUT
DAC I/F DIT(PCM&encoded stream)
SDRAM
(32bit 2M)
SDRAM
(32bit 2M)
TS
AUDIO
VDAC
VDAC
SCALER
Arbiter
Digital TV TS + Audio + Video Decoder IC
with Built-in OSD Function
The LC74152B is a digital TV decoder IC that integrates MPEG2 video decoder, AAC audio decoder, transport stream decoder, data
broadcast OSD, video scaler, and NTSC encoder functions on the same chip.
The video decoder down decodes the HDTV stream to 480i/480p. The digital TV backend block can be implemented by combining
this IC with a system controller (CPU).
Overview
Functions
Overview
Functions
Supports two TS channel inputs
8-bit parallel TS inputs
Either internal or external synchronization can be selected
Supports up to 55 indexes. The PID and channel number can
be set for each index.
Down decodes the HD stream to 480i/480p
Supports two-channel HD down decoded playback,
two-channel HD down decoded plus 480p normal playback,
and three-channel 480p normal playback
MPEG AAC 5.1 channel decoding (with the output mixed
down to two channels)
MPEG BC decoding
[TS Decoder Block]
[Video Decoder Block]
[Audio Decoder Block]
[OSD Block]
Supports both 480i and 480p display
Supports both the 16 bits per pixel YUV 422 format and the
8 bits per pixel CLUT8 format
[Scaler Block]
Two scalers are provided, supporting two-screen structures or
video recording output
Supports satellite broadcast multi-view 3-screen display
[Encoder Block]
NTSC interlaced encoding
Can generate two video output systems
Supply voltage: 1.8 V (internal), 3.3 V (I/O)
Package: PBGA352 (35 35)
Block Diagram Block Diagram
16-bit digital video interface
(SD input, main output)
8-bit digital video interface
(Recording output)
Three analog video channels
(Main outputs: Y.Pb.Pr/Y.C)
Three analog video channels
(Subsidiary output
: Y/C composite video)
OSD with
ISDB support
(Main output: video recording output)
NTSC encoder
Digital TV 32-Bit RISC Microcontroller
The LC74186E is 32-bit microcontroller for digital TV that uses the IBM PowerPC as its CPU core and integrates on a single chip a
wide range of peripheral functions, including UART, I
2 C bus control, timer, synchronous serial port, parallel port, external SDRAM
control, and external bus control functions.
[IBM PowerPC (PPC405D4)]
[External SDRAM Control]
[External Bus Control]
Operation at clock frequencies up to 216 MHz
16 KB instruction cache
16 KB data cache
32-bit data bus
Support for two logical banks (two chip select signals)
Support for 4 MB to 256 MB per logical port
Up to 8 ROM, EPROM, SRAM, flash, and slave peripheral
I/O banks (8 CS signals)
Support for both burst and non-burst transfer devices
26-bit address bus, 16-bit data bus
SCP (synchronous serial port): 1 channel
UART: 3 channels
I
2 C bus controller: 1 channel (I 2 C)
Smart Card interface: 1 channel
General-purpose timer (GPT)
General-purpose parallel port (GPIO)
Interrupt controller (UIC)
DMA controller (DMAC)
System clock generator PLL circuit
Supply voltage: 3.3 V
Package: PQFP208 (0.5 mm lead pitch, 28 mm square)
ROM/SRAM control SDRAM control DMA control
ROM/SRAM
external
bus controller
SDRAM
controller
DMA
controller
Arbiter
Instruction
cache
Data
cache
PLB/OPB
bridge
Debugging
interface JTAG
port
Memory management unit
Execution unit
Time
Interrupt
controller
Parallel port Parallel port
General-purpose timer Timer I/O
Smart Card interface Smart Card control
Asynchronous serial port Asynchronous serial port
Synchronous serial port Synchronous 3-wire
serial port
I 2 C bus controller I 2 C bus control
Clock generator
PLL
Interrupt input
Clock inpu
R
R
R
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