Китайские братья по разуму радуют. Некая малоизвестная компания
Actions Semiconductor предлагает чипы
ATJ2273 по цене 2,3$ при покупке 1000 штук.
А чип очень интересный для такой цены!
Цитата
High Speed 32bit RISC
‹ Up to 450 MHz
‹ 8-stage pipeline
‹ MIPS32™ instruction set
‹ Programmable Memory Management Unit
‹ 16KB I-Cache and 16KB D-cache
‹ 24kB DSPRAM
‹ 8kB ISPRAM
Video Engine
‹ All format of 720p video supported, 30fps, up to 20Mbps averagely;
‹ Support MPEG-4 encoding, up to 720p resolution
‹ Support digital room from x1~x4, and with configurable step.
JPEG Codec
‹ Decoding/Encoding up to 4096*4096
‹ Decoding Format: YCbCr4:2:2, YCbCr4:2:0
Encoding Format: YCbCr4:2:2, YCbCr4:2:0
Graphics Processing Unit
‹ Completely compatible with Openvg 1.0
‹ Hardware accelerated Pattern Tiling
‹ Hardware accelerated FastFill
‹ Hardware accelerated Affine Transform
‹ Hardware accelerated Device Font
Memory Interface
‹ DDR/DDRII/M-DDR memory controller, x16 data bus, supporting up to 256MB, 200MHz max
‹ Nand Flash controller with 8bit/12bit/24bit/40bit ECC, x8 data bus, 3.1V, supporting 2RB and 4CE, and hardware randomizer supported.
‹ SPI Nor Boot Supported
LCD Controller
‹ Support CPU interface LCD
‹ Support up to 24bit RGB interface
‹ Programmable timing control for various panels
‹ Support LCD resolution up to 1024*1024
TV Out:
‹ Support NTSC-M, -J and –4.43 modes.
‹ Support PAL-B, -D, -G, -H, -I, -M, -N, -Nc mode
‹ Support CVBS output
‹ Support YPbPr/YCbCr output up to 720p resolution
‹ Support outputting blue/black color and ColorBar when no data input
USB
‹ Complies with OTG 2.0
‹ Supports Session Request Protocol (SRP) and Host Negotiation Protocol (HNP).
‹ Supports point-to-point communication with one low-speed, full-speed or high-speed device in Host mode
Supports full-speed or high-speed in peripheral mode, up to 480Mbps
Display Engine
‹ Four moveable layers
‹ Alpha blending and color space converting
‹ Scalar
‹ Dither function for 16 bit/18 bit interface
LCD
‹ Gamma correction
‹ Video brightness, contrast and saturation adjustable
Audio Engine
‹ All format of Audio decoding supported
‹ Support MPEG-I decoding, 8~ 448kbps
‹ Support WMA decoding, 5~383kbps
‹ Support AAC/OGG/APE decoding
‹ Several format of Audio encoding supported
HDMI
‹ HDMI 1.1, up to 720p resolution
‹ Supports RGB, YCbCr format
‹ Supports IEC60958 audio format up to 24bits
CMOS Sensor interface
‹ Support BT656&BT601 Interface
‹ Support CMOS Sensor with YUV422 or
RGB565 data format
‹ With the CLKOUT for CMOS Sensor
Audio In/Out
‹ Build in stereo Sigma-Delta DAC, SNR>96dB
‹ Build in stereo Sigma-Delta ADC, SNR>89dB
‹ 18mW*2 Headphone Power Amplify, THD<-90dB
‹ Support Microphone/FM (Linein) to ADC
SDIO
‹ Two 4-wire bus supported
‹ Up to 8-wire for one bus
‹ Support SD/HCSD/microSD/miniSD/MS memory card, MMC/RSMMC/MMC PLUS card
‹ Support SDIO function
UART
‹ 5-8 Data Bits and LSB first in Transmitting and receiving
‹ 1-2 Stop Bits
‹ Even, Odd, or No Parity
SPI
‹ 2 seperated SPI controller
‹ Each support master mode and slave mode. The speed of master mode up to 80Mbps, and slave up to 20Mbps.
‹ Support dual I/O write and read mode as master
‹ Support single data rate mode and double data rate(DDR mode) as master
‹ Support two wire mode, only use SCLK and
MOSI signal
Timer/Clock
‹ 2 Timers
‹ Alarm supported
‹ Calendar supported
‹ Two oscillator needed: 24MHz and 32.768KHz
I2C
‹ 1-ch multi-master I2C bus, support both master and slave functions
‹ Support standard mode (100kbps) and fast-speed mode (400kpbs)
User Interface
‹ 1 remote control
‹ 2*4 key matrix
‹ Build in Touch Panel controller
‹ IRC build in
I2S&SPDIF
‹ Support 5.1-Channel through I2S Transmitter module with Ext. 6-Channel DAC, include 3-Wire-DOUT Mode and TDM (time-division multiplexed) Mode
‹ Support 5.1-Channel digital out through
SPDIF
Chip ID
‹ Programmable for customer
Демодевайс на этом чипе можно купить за 34$.
Посоветуйте дешевый чип для проигрывания видео, Для создания видеооткрыток
Dec 26 2011, 17:30
