參數(shù)資料
型號: SAA7205
廠商: NXP Semiconductors N.V.
英文描述: MPEG-2 systems demultiplexer
中文描述: MPEG - 2系統(tǒng)解復(fù)用器
文件頁數(shù): 35/84頁
文件大小: 363K
代理商: SAA7205
1997 Jan 21
35
Philips Semiconductors
Preliminary specification
MPEG-2 systems demultiplexer
SAA7205H
Fig.20 PCR and PTS/DTS processing implementation.
PTS REGISTERS
9 MHz
90 kHz
COU NTER
COUNTER
handbook, full pagewidth
MGG782
PCR EXTENSION
9 bits
STC COUNTER-B
emulated_PTS
incoming_PTS
load A or B
when new PCR
arrives
load A or B
when new PCR
arrives
9
24
24 LSBs
of 33
PCR REGISTERS
PCR BASE
COUNTER
0 to 299 (step 3)
PTS-BASE
PTS REGISTERS
back-end part runs
on byte clock (9 MHz)
DIVIDE-BY-3
CCLKI
(27 MHz)
transport
stream
microcontroller
interface
PCR received
STC_samples
interrupt upon
zero transition
PCR_ext
PCR_base
COUNTER
0 to 2
24
1
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