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SAA7327 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. SAA7327
Description  Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 3 page
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1999 Jun 17
3
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc decoder
with integrated DAC for video CD (CD7 II)
SAA7327
1
FEATURES
• Integrated bitstream DAC with differential outputs,
operating at 96fs with 3rd order noise shaper; typical
performance of
−95 dB signal-to-noise ratio (EIAJ
A-weighted)
• Separate serial input and output interfaces allow data
‘loopback’ mode for use of onboard DAC as stand-alone
DAC for digital audio signals
• Up to 2 times speed mode
• Lock-to-disc mode
• Full error correction strategy, t = 2 and e = 4
• Full subcode (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 external DAC deactivation during digital
silence
• All SAA737x (CD7) digital servo and high-level functions
• Low focus noise
• Improved playability performance
• 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 TDA1301/SAA7345
compatible bus or I2C-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 SAA7327 (CD7 II) is a single chip combining the
functions of a CD decoder, digital servo and bitstream
DAC, especially designed for Video CD applications.
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).
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
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SAA7327H
QFP64
plastic quad flat package; 64 leads (lead length 1.6 mm);
body 14
× 14 × 2.7 mm
SOT393-1



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