- 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)： | 17/68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頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第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
17
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC for video CD (CD7 II)
SAA7327
7.8
DAC interface
7.8.1
I
NTERNAL BITSTREAM
D
IGITAL
-
TO
-A
NALOG
C
ONVERTER
(DAC)
The onboard bitstream DAC operates at a clock frequency
of 96f
s
and is designed for operation with an audio input at
1f
s
. Optimum performance is dependent on the application
circuit used and careful consideration should be given to
the recommended application circuits shown in
Figs 38 and 39. The onboard DAC is controlled from
shadow register 7 (see Section 7.15.3 for definition of
shadowregisters).Thisshadowregistercontrolsroutingof
data into the onboard DAC and also controls the DAC
output pins, which can be held at zero when the onboard
DAC is not required; see Table 4.
Audio data from the decoder part of SAA7327 can be
routed as described in Sections 7.8.1.1 and 7.8.1.2.
7.8.1.1
Use onboard DAC
Setting shadow register 7 to XX11 will route audio data
from the CD7 II decoder into the internal DAC and enables
the DAC output pins (LN, LP, RN, RP). To enable the
on-boardDAC,theDACinterfaceformat(setbyregister 3)
must be set to 16-bit 1fs mode, either I
2
S or EIAJ format.
CD-ROM mode can also be used if interpolation is not
required. The serial data output pins for interfacing with an
external DAC (SCLK, WCLK, DATA and EF) are set to
high-impedance.
7.8.1.2
Loopback external data into onboard DAC
The onboard DAC can also be set to accept digital audio
inputs from an external source, e.g. audio from a VCD
decoder IC. This is known as loopback mode and is
enabled by setting shadow register 7 to XX01. This
enables the serial data output pins SCLK, WCLK, DATA
and EF so that data can be routed to the external VCD
decoder (or external DAC).
The digital audio data output from the VCD decoder can
then also be input to the onboard DAC on the SAA7327 by
utilising the serial data input interface (SCLI, SDI and
WCLI).
In this mode, a wide range of data formats to the external
VCD IC can be programmed as shown in Table 4.
However, the serial inputs on the SAA7327 will always
expect the input digital audio data from the VCD IC to be
16-bit 1f
s
and the same data format, either I
2
S-bus or
EIAJ, as the serial output format (set by decoder
register 3). In fact, the onboard DAC will also accept 18-bit
I
2
S-bus data; in this case the 16 MSBs only will be read
and the 2 LSBs discarded.
Table 4
Shadow register
SHADEN
SHADOW
ADDRESS
REGISTER
DATA
FUNCTION
RESET
1
0111 (7H)
control of
onboard DAC
XXX0
hold onboard DAC outputs at
zero
enable onboard DAC outputs
use external DAC or route audio
data into onboard DAC
(loopback mode)
route audio data into onboard
DAC (non-loopback mode)
reset
XXX1
XX0X
reset
XX1X
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)。