參數(shù)資料
型號(hào): CXD2507AQ
廠商: Sony Corporation
元件分類: 數(shù)字信號(hào)處理
英文描述: CD Digital Signal Processor
中文描述: CD數(shù)字信號(hào)處理器
文件頁數(shù): 28/38頁
文件大?。?/td> 375K
代理商: CXD2507AQ
– 28 –
CXD2507AQ
3-5. Digital Out
There are three digital out formats: the type 1 format for broadcasting stations, the type 2 form 1 format for
home use, and the type 2 form 2 format for the manufacture of software.
The CXD2507 supports type 2 form 1.
Sub Q data which are matched twice in succession after a CRC check are input to the first four bits (bit 0 to
3) of channel status.
Table 3-5
3-6. Servo Auto Sequencer
This function performs a series of controls, including auto focus and track jumps. When the auto sequence
command is received from the CPU, auto focus, 1 track jump, 2N track jumps, and N track move are
executed automatically.
SSP (servo signal processor LSI) is used in an exclusive manner during the auto sequence execution (when
XBUSY = low), so that commands from the CPU are not transferred to the SSP, but they can be sent to the
CXD2507.
Connect the CPU, RF and SSP as shown in Fig. 3-6.
When CLOK goes from low to high while XBUSY is low, XBUSY does not become high for a maximum of
100μs after that point. This is designed to prevent the transfer of erroneous data to the SSP when XBUSY
changes from low to high by the monostable multivibrator, which is reset by CLOK being low (when XBUSY
is low).
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ID0
ID1 COPY Emph
0
0
0
0
1
0
0
0
0
0
0
0
From sub Q
0
16
32
48
176
Digital Out C bit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
bit0 to 3 – Sub Q control bits that matched twice with CRCOK
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