SAA7324H/M2B,557

Encoders, Decoders, Converters Overview

The SAA7324H/M2B,557 is a digital servo processor and Compact Disc decoder with an integrated bitstream DAC (CD10 II). It combines CD decoding, digital servo control, and audio conversion in a single chip. The device supports up to 4x overspeed operation with low voltage supply ranging from 2.4 V to 3.6 V depending on the mode. It features a typical signal-to-noise ratio of −90 dB for the onboard DAC. The component operates within an ambient temperature range of −10 °C to +70 °C and utilizes a QFP64 package.

Encoders, Decoders, Converters Feature Summary

• Integrated bitstream DAC with differential outputs operating at 96fs
• Supports up to 4 times speed mode with low voltage operation
• Full error correction strategy with t = 2 and e = 4 capability
• Compatible with SAA737x (CD7) digital servo and high-level functions

Encoders, Decoders, Converters Applications

• Compact Disc digital servo processing
• Compact Disc data decoding
• Digital audio signal processing with integrated conversion

Encoders, Decoders, Converters Procurement Notes

Verify the specific ordering suffix M2B,557 against manufacturer documentation to confirm package variant and material compliance. Ensure the procurement source provides the original Philips Semiconductors or NXP product specification to validate the CD10 II functional description and pin configuration details.

Encoders, Decoders, Converters Selection Notes

Select this component when a combined solution for CD decoding and digital servo control is required. The internal clock multiplier allows flexibility with crystal frequencies. Consider the integrated DAC performance if external conversion is not desired, noting the specific loopback capabilities for electronic shock absorption systems.

Encoders, Decoders, Converters Part Context

This part belongs to the Philips Semiconductors (now NXP) CD10 II family. It is based on the previous SAA737x (CD7) design but includes additional functions controlled by shadow registers. The device integrates the decoder, servo processor, and DAC into one QFP64 package, simplifying the circuit design for compact disc players.

Encoders, Decoders, Converters Replacement Considerations

The SAA7324 is software compatible with the SAA737x (CD7). Designers may consider the SAA737x as a baseline reference, though the SAA7324 offers extended features via shadow registers. Verify pin compatibility and register mapping before substituting.