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PA1688 Chip Introduction:
The high performance and low-cost PA1688 chip contains enhanced instruction controller, digital signal processor and abundant- ly unique interfaces such as USB, SDRAM and AC97codec. The compact and efficient software reside in the programmable FLASH memory and the data are exchanged in the SDRAM extend system.
The veracity software stacks for the PA1688 chip provides all features required for VoIP application including voice mail. major ITU-G.7XX;GSM610 Audio codec ; H.323v4 call control protocols, MGCP RFC2705, SIP RFC3261, Net2phone private system and standard network protocols are supported. The PA1688 chip enable manufactures to produce cost effective and high quality IP phone with abundant supplying low-cost chip and basic PC technology.
PA1688 Chip Features
160/ pin LQFP and PQFP Package
On-chip 8-bit micro-controller (Intel MCS8051/32 Series Compatible)
On-chip DSP processor (ADSP2181 Compatible)
Built-in USB transceiver
AC97'2.1 CODEC interface
Image sensor interface, keypad interface
Direct LCD display interface
EEPROM, FLASH Program Memory support
SRAM, SDRAM
Smart Media Card interface
Serial Comm. Port for RS232 or IrDA I/F
17 GPIO for User Defined Functions
2.5V & 3.3V Operating Voltage
PA1688 Chip Architecture
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