參數(shù)資料
型號(hào)： SAA7325
廠商： NXP Semiconductors N.V.
英文描述： Digital servo processor and Compact Disc decoder with integrated DAC (CD10 II)(具有綜合數(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援會(huì)（CD10型二）（具有綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤譯碼器）
文件頁數(shù)： 3/68頁
文件大?。?/td> 281K
代理商： SAA7325
2000 Jun 26
3
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC (CD10 II)
SAA7325
1
FEATURES
Single speed operation
Integrated bitstream DAC with differential outputs,
operating at 96f
s
with 3rd-order noise shaper; typical
performance of
90 dB signal-to-noise ratio
Separate serial input and output interfaces allow data
‘loopback’ mode for use of onboard DAC with external
Electronic Shock Absorption (ESA) systems
Lock-to-disc mode
Full error correction strategy, t = 2 and e = 4
Full CD graphics interface
All standard decoder functions implemented digitally on
chip
FIFO overflow concealment for rotational shock
resistance
Digital audio interface (EBU), audio and data
2 and 4 times oversampling integrated digital filter,
including f
s
mode
Audio data peak level detection
Kill interface for external DAC deactivation during digital
silence
All SAA737x (CD7) digital servo and high-level functions
Low focus noise
Same playability performance as SAA737x (CD7)
Automatic closed-loop gain control available for focus
and radial loops
Pulsed sledge support
Electronic damping of fast radial actuator during long
jump
Microcontroller loading LOW
High-level servo control option
High-level mechanism monitor
Communication may be via I
2
C-bus or
TDA1301/SAA7345 compatible bus
On-chip clock multiplier allows the use of 8.4672,
16.9344 or 33.8688 MHz crystals or ceramic
resonators.
2
GENERAL DESCRIPTION
The SAA7325 (CD10 II) is a single chip combining the
functions of a CD decoder, digital servo and bitstream
DAC. The decoder/servo part is based on the SAA737x
(CD7) and is software compatible with this design. Extra
functions are controlled by use of ‘shadow’ registers
(see Section 7.15.3).
SupplyofthisCompactDiscICdoesnotconveyanimplied
license under any patent right to use this IC in any
Compact Disc application.
3
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DD
I
DD
f
xtal
T
amb
T
stg
S/N
DAC
supply voltage
supply current
crystal frequency
ambient temperature
storage temperature
onboard DAC signal-to-noise ratio
3.0
8
10
55
85
3.3
20
8.4672
90
3.6
35
+70
+125
V
mA
MHz
°
C
°
C
dB
1 kHz; 1f
s
; see
Figs 0 and 39
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