SAA7750-N1D

1.1 Hardware Features

` Integrated ARM720T 32 bit RISC processor, capable of running at 72MHz.
` High performance 32-bits bus (AHB)
` Centralized address decoding for all AHB devices
` Four possible memory maps:
  external boot
  internal flash boot
  internal ROM boot
  normal operation
` Supports USB 1.1 compliant interface for down loading data from PC
` Support for flash-card applications:
  Supports the Multi Media Card (MMC)
  Supports Smart Media Card (EBI)
  NAND FLASH (EBI)
` Memory interface (EBI) supporting a number of memory types like Static RAM, SDRAM, external Flash. The maximum bus frequency can be up to 48MHz.
` Integrated CD block decoder for CD-DA and MP3 CD applications
` UART + IrDA (IrDA is a new block on the N1D version)
` Integrated Master and Slave IIC interface
` Real-Time Clock (RTC)
` General-Purpose IO pins (28 pins)
` Integrated Remote Control interface
` Integrated LCD interface with 6800 / 8080 type interface
` Integrated 10 bits ADC with 8 selectable inputs (via analog multiplexer).
` Integrated SPDIF output interface
` Integrated IIS input and output interface
` Integrated stereo Audio Codec
  Stereo Line input with Programmable Gain Amplifier (PGA)
  Mono Microphone input with embedded Low Noise Amplifier (LNA) and Variable Gain Amplifier (VGA
  stereo analog input with analog volume control (e.g. for tuner applications)
  stereo line output
  integrated stereo headphone driver which can be used in DC coupling (short circuit protection and detection build in).

1.2 General Features

` Integrated ARM720T 32 bit RISC processor
` Programmable architecture enables support of multiple audio decompression algorithms.
` Designed for applications that require long battery life
` Embedded 3Mbit (384kbyte) flash for Field upgradibility
` Embedded Audio Codec with headphone driver
` small footprint LFBGA208 package

1.3 Software features

` Audio Decoder support:
  Supports MPEG 1 layer 3 and MPEG 2 layer 2.5 and layer 3 audio decoding (MP3), up to 320kbit/s , fixed and variable bitrate.
  Supports Microsoft WMTA 4.0 decoding
  Supports AAC-LC decoding
` Features on the audio codec:
  Digital Automatic Gain Control (AGC) on the microphone input.
  Programmable Gain Amplifier (PGA) for analog stereo line input
  Volume control (incl. balance)
  Bass-boost and Treble (left/right)
` DSP features:
  UltraBass II
  Incredible headphone
  Infrapitch

The SAA7750 is an IC based on an embedded RISC processor in combination with a simple embedded DSP core for
audio post-processing. The SAA7750 is designed for hand-held applications like portable CD-DA/ MP3 players, memory
card applications or other portable applications. The high level of integration, low power consumption and high processor performances make the SAA7750 very suitable for portable hand-held devices.

The SAA7750 is based on the powerful ARM720T CPU core, which is a full 32-bit RISC processor featuring the 16-bit
Thumb instruction set for effective memory usage. The audio streaming and post-processing for the SAA7750 is handled by a separate audio co-processor DSP, which is a small, fast and powerful 24-bit Epics7A DSP core.