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Teilenummer | AML6210DP |
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Beschreibung | A/V Processor | |
Hersteller | AMLOGIC | |
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Gesamt 24 Seiten AML6210DP A/V Processor User Guide Version 0.4
AML 6210DP A/V Processor
User’s Guide
AMLOGIC, Inc.
3930 Freedom Circle
Santa Clara, CA 95054
U.S.A.
www.amlogic.com
AMLOGIC reserves the right to change any information described herein at any time without notice.
AMLOGIC assumes no responsibility or liability from use of such information.
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AML6210DP A/V Processor User Guide Version 0.4
o DMA support for data movement for BULK, INTR and ISO transfer
o USB device driver, native USB protocol stack supported in AVOS firmware
o Integrated support for Mass‐storage class (MS‐Class) and Picture Transfer Protocol (PTP)
o USB Hub support
o Video, audio and image decoding from USB attached MS‐Class or PTP devices
o Connecting to PCs or Apple computers as USB MS‐Class devices
Card Reader Interfaces and Controllers
o Support MS, SD/SDHC, MMC, and xD memory card formats
o Supports reading and play back of audio and picture multimedia files
o AVOS software supports all file operations via file system on each memory card
Core CPU Subsystem
o 32‐bit core CPU dedicated for user applications
o Embedded debug interface using ICE/JTAG
o Shared MPEG SDRAM as run time data storage for minimal system cost
o Integrated interrupt controller
o Integrated general purpose timers and counters
o Integrated general purpose DMA controllers
o Supports up to 8M bytes of 8‐bit FLASH chip
o Supports single SDRAM interface (m1_*). The SDRAM interface can support 8M or 16M
bytes of SDRAM.
System, Peripherals and Misc. Interfaces
o One 27 MHz crystal oscillator for A/V system
o AMPOWER‐II power reduction algorithm for portable devices
o Numerous programmable GPIO pins for system control and interrupts
o Integrated i2c master controllers, remote control input circuitry, quad PWM output pins
o 1.25 volt and 3.3 volt power supplies
o 3.3 volt I/O support
o 144 pins LQFP RoHS package
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6 Page AML6210DP A/V Processor User Guide Version 0.4
3.3 Audio Interfaces
A pair of audio DACs is provided in the AML6210DP device. The audio DACs are designed for connecting to
small speaker inside the photo frame or ear buds for external listening. A simple external amplifier is needed.
Please see the following sample circuit diagram.
Internally, the delta‐sigma algorithm is used to improve the performance and ensure high SNR output. The
implementation includes a multi‐tap interpolation filter which increases the sample rate of the audio
channels to the modulator rate. Then the audio stream is passed through a sigma‐delta modulator that
generates the serial PWM data stream. An internal analog filter is then used for out‐of‐band noise filtering
and analog signal reconstruction. External amplifier is needed to provide the necessary current to drive the
speakers or head phones.
ADATA_0 (L)
ADATA_1 (R)
L
R
AMPIFLER
Circuit
Internal
Stereo ADC
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12 Page | ||
Seiten | Gesamt 24 Seiten | |
PDF Download | [ AML6210DP Schematic.PDF ] |
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