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85C51SND3B2N-RTTUL

Description
Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface
File Size2MB,263 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Compare View All

85C51SND3B2N-RTTUL Overview

Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface

Features
Audio Processor
– Proprietary Digital Signal Processor
– MP3 (Full MPEG I/II-Layer 3) Decoder
(1)
– Windows Media
®
Audio (WMA) Decoder
(1)
– OGG (Vorbis) Decoder
(2)
– WAV PCM Decoder/Encoder
– ADPCM Decoder/Encoder (G726: 40, 32, 24, 16 Kbps)
Audio Codec
– 16-bit Stereo D/A Converters
(3)
– Headphone Amplifier with Analog Volume Control
(3)
– Microphone Pre-Amplifier with Bias Control
– 16-bit Mono A/D Converter: Microphone or Line Inputs Recording
– Stereo Lines Input for FM Playback or Mono Recording
– Baseband Sound Processor with Digital Volume Control, Bass, Medium, and
Treble Control, Bass Boost and Virtual Surround Effects
Digital Audio DAC Interface
– PCM / I
2
S Format Compatible
USB Rev 2.0 Controller
– High Speed Mode (480 Mbps)
– Full Speed Mode (12 Mbps)
– On The Go Full Speed Mode
Data Flow Controller
– 16-bit Multimedia Bus with 2 DMA Channels for high speed transfer with USB
Nand Flash Controller
– Up to four Memories with Page Size: 512B, 1KB, 2KB or 4KB
– Built-in ECC and Hardware Write Protection
– xD-Picture Card™ and SmartMedia
®
Card Interface
MultiMediaCard
®
Controller
– MultiMediaCard 1-bit / 4-bits Modes (V4.0 compatible)
– Secure Digital Card 1-bit / 4-bit Modes
Man Machine Interface
– Glueless Generic LCD Interface
– Keyboard Interface
Remote Controlled / Streaming
– PSI I80 Slave Interface (EBI Compatible) up to 6Mbyte/s
– SPI Master and Slave Modes
– Full Duplex UART with Baud Rate Generator up to 6 Mbit/s (Rx, Tx, RTS, CTS)
Control Processor
– Enhanced 8-bit MCU C51 Core (F
MAX
= 24 MHz)
– 64K Bytes of Internal RAM for application code and data
– Boot ROM Memory: Secured Nand Flash Boot Strap (standard), USB Boot Loader
– Two 16-bit Timers/Counters
– Hardware Watchdog Timer
Power Management
– 1.8V 40 mA Single AAA or AA Battery Powered
(4)
– Direct USB V
BUS
Supply
– 3V - 50 mA Regulator Output
– 1.8V - 50 mA Regulator Output
– Battery Voltage Monitoring
– Power-on Reset
– Software Programmable MCU Clock
– Idle, Power-Down, Power-Off Modes
On Chip Debug
Operating Conditions
– Supply 0.9V to 5V
– 25 mA Typical Operating at 25°C (estimation to be confirmed)
– Temperature Range: -40°C to +85°C
Single-Chip
Digital Audio
Decoder -
Encoder with
USB 2.0
Interface
AT85C51SND3B1
AT85C51SND3B2
AT85C51SND3B3
Preliminary
7632A–MP3–03/06
1

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