SAA7374 查看數據表（PDF） - Philips Electronics
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SAA7374 Datasheet PDF : 60 Pages
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Philips Semiconductors
Low voltage digital servo processor and
Compact Disc decoder (CD7LV)
Product specification
SAA7374
1 FEATURES
• CD-ROM mode
• Single and double-speed modes
• 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 fs mode
• Audio data peak level detection
• Kill interface for DAC deactivation during digital silence
• All TDA1301 (DSIC2) digital servo functions, plus extra
high-level functions
• Low focus noise
• Improved playability on ABEX TCD-721R, TCD-725 and
TCD-714 discs
• Automatic closed loop gain control available for focus
and radial loops
• Pulsed sledge support
• Microcontroller loading LOW
• High-level servo control option
• High-level mechanism monitor
• Communication may be via TDA1301/SAA7345
compatible bus or I2C-bus
• On-chip clock multiplier allows the use of 8.4672 MHz
crystal.
2 GENERAL DESCRIPTION
The SAA7374 (CD7LV) is a low-voltage chip which
combines the functions of a CD decoder IC and Digital
Servo IC. The decoder part is based on the SAA7345
(CD6) with an improved error correction strategy. The
servo part is based on the TDA1301T (DSIC2) with
improvements incorporated. Extra features have also
been added.
Supply of this Compact Disc IC does not convey an implied
license under any patent right to use this IC in any
Compact Disc application.
3 QUICK REFERENCE DATA
SYMBOL
VDD
IDD
fxtal
Tamb
Tstg
PARAMETER
supply voltage
supply current
crystal frequency
operating ambient temperature
storage temperature
CONDITIONS
n = 1 mode
MIN.
3.0
−
8
−10
−55
TYP.
3.3
28
8.4672
−
−
MAX.
3.6
−
35
+70
+125
UNIT
V
mA
MHz
°C
°C
4 ORDERING INFORMATION
TYPE
NUMBER
SAA7374GP
PACKAGE
NAME
DESCRIPTION
QFP64 plastic quad flat package; 64 leads (lead length 1.6 mm); body
14 × 14 × 2.7 mm
VERSION
SOT393-1
1998 Feb 26
3
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