- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372115 > SAA7327 (NXP Semiconductors N.V.) Digital servo processor and Compact Disc decoder with integrated DAC for video CD (CD7 II)(應(yīng)用于視頻CD的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器) PDF資料下載
參數(shù)資料
| 型號： | SAA7327 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Digital servo processor and Compact Disc decoder with integrated DAC for video CD (CD7 II)(應(yīng)用于視頻CD的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器) |
| 中文描述： | 數(shù)字伺服處理器和光盤解碼器集成了用于視頻光盤（CD7抗原二）（應(yīng)用于視頻光碟的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤譯碼器援會） |
| 文件頁數(shù)： | 24/68頁 |
| 文件大?。?/td> | 284K |
| 代理商： | SAA7327 |
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頁第22頁第23頁當前第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頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
2000 Jun 26
24
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC for video CD (CD7 II)
SAA7327
MGA364 - 2
VSS
+
M
MOTO1
V4
MOTO2
V5
100 nF
10
Fig.18 Motor 4-line PWM mode application diagram.
7.13.1.4
CDV/CAV output mode
In the CDV motor mode, the FIFO position will be put in
pulse-width modulated form on the MOTO1 pin [carrier
frequency (300
×
d) Hz], where ‘d’ is the disc speed factor.
The PLL frequency signal will be put in pulse-density
modulated form (carrier frequency 4.23
×
n MHz) on the
MOTO2 pin. The integrated motor servo is disabled in this
mode.
The PWM signal on MOTO1 corresponds to a total
memory space of 20 frames, therefore the nominal FIFO
position (half full) will result in a PWM output of 60%.
In the lock to-disc (CAV) mode the CDV motor mode is the
only mode that can be used to control the motor.
7.13.2
S
PINDLE MOTOR OPERATING MODES
The operation modes of the motor servo is controlled by
decoder register 1 (see Table 11).
In the SAA7327 decoder there is an anti-windup mode for
themotorservo,selectedviadecoderregister 1.Whenthe
anti-wind-up mode is activated the motor servo integrator
will hold if the motor output saturates.
7.13.2.1
Power limit
In start mode 1, start mode 2, stop mode 1 and stop
mode 2, a fixed positive or negative voltage is applied to
the motor. This voltage can be programmed as a
percentage of the maximum possible voltage, via
register 6, to limit current drain during start and stop.
The following power limits are possible; 100% (no power
limit), 75%, 50%, or 37% of maximum.
7.13.3
L
OOP CHARACTERISTICS
The gain and crossover frequencies of the motor control
loop can be programmed via decoder registers 4 and 5.
The following parameter values are possible:
Gains: 3.2, 4.0, 6.4, 8.0, 12.8, 16, 25.6 and 32
Crossover frequency f
4
: 0.5
×
n Hz, 0.7
×
n Hz,
1.4
×
n Hz and 2.8
×
n Hz
Crossover frequency f
3
: 0.85
×
n Hz, 1.71
×
n Hz and
3.42
×
n Hz.
It should be noted that the crossover frequencies f
3
and f
4
are scaled with the overspeed factor ‘n’ whereas the gains
are not.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA7335GP | DSP for CD and DVD-ROM systems |
| SAA7335 | DSP for CD and DVD-ROM systems(在CD和DVD-ROM應(yīng)用中的DSP) |
| SAA7341 | COMS Digital decoding IC for Compact Disc |
| SAA7341GP | COMS Digital decoding IC for Compact Disc |
| SAA7345 | Bitstream conversion ADC for digital audio systems |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7327H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II |
| SAA7327H/T/M2B,557 | 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7327HBG | 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SAA7335 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems |
| SAA7335GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。