- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378465 > CXA1372BQ_BS (Sony Corporation) RF Signal Processing Servo Amplifier for CD Player(710.00 k) PDF資料下載
參數(shù)資料
| 型號： | CXA1372BQ_BS |
| 廠商： | Sony Corporation |
| 英文描述： | RF Signal Processing Servo Amplifier for CD Player(710.00 k) |
| 中文描述： | 射頻信號處理伺服放大器的CD播放器（710.00十一） |
| 文件頁數(shù)： | 22/32頁 |
| 文件大?。?/td> | 710K |
| 代理商： | CXA1372BQ_BS |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當(dāng)前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
– 22 –
CXA1372BQ/BS
DIRC (Pin 20) and 1 Track Jump
Normally, an acceleration pulse is applied for a 1-track jump. Then a deceleration pulse is given for a specified
time observing the tracking error from the moment it passes point 0, and tracking servo is turned ON again.
For the 100-track jump to be explained in the next item, as long as the number of tracks is about 100 there is
no problem. However a 1-track jump must be performed here, which requires the above complicated
procedure. For the 1-track jump in CD players, both the acceleration and deceleration take about 300 to
400μs. When software is used to execute this operation, it turns out as shown in the flow chart of Fig. 9.
Actually, it takes some time to transfer data.
Acceleration
Pulse waveform
Tracking error
Deceleration
AAA
AAA
$2C transfer latch
$28 transfer only
NO
Latch
Timer (0.3ms)
$25 transfer latch
TR: REV
SL: OFF
TR: FWD
SL: OFF
Execute
Execute
TR: ON
SL: ON
Execute
AAAA
AAAA
$2C transfer latch
NO
DIRC = L
Timer (0.3ms)
DIRC = H
TR: REV
SL: OFF
TR: FWD
SL: OFF
Execute
TR: ON
SL: ON
Fig. 9. 1-track jump not using DIRC (Pin 20)
Fig. 10. 1-track jump with DIRC (Pin 20)
Fig. 8. Pulse waveform and tracking error of 1-track jump
The DIRC (Direct Control) pin was provided in this IC to facilitate the 1-track jump operation. Conduct the
following process to perform 1-track jump using DIRC (normal High).
(a) Acceleration pulse is output. ($2C for REV or $28 for FWD).
(b) With TZC
↓
(or TZC
↑
), set DIRC to Low. (SENS Pin 27 outputs "TZC"). As the jump pulse polarity is
inverted, deceleration is applied.
(c) Set DIRC to High after a specific time.
Both the tracking servo and sled servo are switched ON automatically.
As a result, the track jump turns out as shown in the flow chart of Fig. 10 and the two serial data transfers
can be omitted.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CXA1372S | RF Signal Processing Servo Amplifier for CD Player(710.00 k) |
| CXA1386K | Dual Precision Operational Amplifier 20-LCCC -55 to 125 |
| CXA1386P | Dual Precision Operational Amplifier 8-CDIP -55 to 125 |
| CXA1390AQ | Dual Precision Operational Amplifier 20-LCCC -55 to 125 |
| CXA1390AR | Dual Precision Operational Amplifier 8-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXA1372BS | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:RF Signal Processing Servo Amplifier for CD Player |
| CXA1372Q | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| CXA1372Q/S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| CXA1372S | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:RF Signal Processing Servo Amplifier for CD Player(710.00 k) |
| CXA1380M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Demodulator， Other/Special/Miscellaneous |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。