SAA7324H

GENERAL DESCRIPTION

The SAA7324 (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).

FEATURES
• Integrated bitstream DAC with differential outputs,
operating at 96fs 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
• Up to 4 times speed mode
• Low voltage operation at up to 2 times speed
• 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
• Two and four 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
• 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 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.