參數(shù)資料
型號(hào)： W99802G
廠商： WINBOND ELECTRONICS CORP
元件分類(lèi)： 通信及網(wǎng)絡(luò)
英文描述： SPECIALTY TELECOM CIRCUIT, PBGA184
封裝： 10 X 10 MM, 1.60 MM HEIGHT, LEAD FREE, LFBGA-184
文件頁(yè)數(shù)： 12/31頁(yè)
文件大小： 371K
代理商： W99802G
W99802G
- 2 -
1. GENERAL DESCRIPTION
W99802G is a highly integrated, low-power and high performance MPEG-4 audio/video chip with
embedded memory for multimedia cellular phones. It contains a 32-bit ARM CPU, Sensor ISP, JPEG
image codec, MPEG-4 video codec, Audio engine, 2-D graphics engine, video processing engine,
display controller, USB 1.1 device controller, and flash memory card interface.
W99802G supports 8-bit YCbCr or 10-bit raw data RGB CMOS / CCD sensor interface and provides
advanced AEC / AWB / AFC algorithm to deliver professional photo image quality. The supported
image resolution can be up to 3M pixels.
The JPEG image codec is compliant with ISO/IEC 10918-1 baseline standard and JFIF format. It is
capable of encoding or decoding 30fps JPEG pictures at VGA resolution.
The MPEG-4 video codec is compliant with ISO/IEC 14496-2 Visual standard Simple Profile Level 3. It
can also support H.263 short header mode for the implementation of 3GP movie. The video codec
supports smart bit rate control and performs up to 30fps VGA simultaneous encode and decode for
video conferencing applications.
The audio engine integrates a single channel 16-bit ADC, as well as audio control interface for
external audio codec or melody chip. W99802G can provide voice recorder and high quality MP3 and
AAC music playback.
The 2-D graphics engine is used for MMI and JAVA acceleration.
The video processing engine is used for the image / video data processing. It can provide versatile
functions for image / video capture and playback such as sticker, rotation, color effects, etc.
The display controller can support dual LCM display and bypass mode. The supported LCM can be up
to 262K colors.
The USB device controller is compliant with USB1.1 specification and can support configurable pipes
for rich USB functions such as Mass storage, PC camera, Virtual COM port and PictBridge.
The flash memory card interface can support embedded NAND type flash and SD / mini-SD / MMC /
RS-MMC / T-Flash for storing multimedia data.The file system is FAT compatible and can be
accessed by host through host interface.
The internal 32-bit ARM CPU handles audio/video synchronization, file system and all multimedia
functions such as still camera, video camcorder, MP3 player and voice recorder according to the high-
level commands from host. The host driver programmer can control W99802G without knowing its
register programming to shorten the development cycle.
2. FEATURES
CPU
Built-in 32-bit ARM CPU with I-cache and D-cache.
Programmable with CPU operating frequency from 200KHz to 166MHz.
Program code can be downloaded into program buffer through Host Interface or JTAG port.
Integrate JTAG port to support real time, non-stop ICE function for system development and
debug.
Sensor Interface and ISP
Support up to 3M pixels CMOS / CCD image sensor.
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