AR1688

The AR1688 is a VOIP chip and associated open source firmware for building low-cost single-chip IP phones and ATAs.
The AR1688 is the replacement for the PA1688

Features

• Integrated MCU, the instruction set is compatible with Z80
• MCU runs at 24.576MHz(typical), F/W can program from DC up to 60MHz
• Internal 116 Kbytes RAM, no external SDRAM needed for most application
• Up to 4 chip selection for external SRAM, EEPROM or FLASH, each can support 2MB at maximum
• 24 bits DSP Core
• 2181-instruction-set compatible DSP co-processor
• DSP Speed up to 72MIPS
• Support 24.576MHz OSC with on-chip PLL for DSP
• Up to 16 general-purpose I/O pins
• High-quality 18bits CODEC on-chip.
• One UART port
• Support real-time clock
• Keypad support (up to 12 keys directly)
• Maximum voice output: 11mW@16 ohm
• Internal DC/DC converter to produce CORE voltage, eliminate external LDO
• Operating Voltage: IO: 3.3v, Core: 1.8v
• Low Power consumption: <90mW at typical
• LQFP-100(14x14mm) package

Resources

• Palmmicro AR1688 Product Page
• Blog by one of the developers with lots of technical information and updates
• Support email: [email protected]
• AR1688 and PA1688 based IP phone mailing list – http://groups.yahoo.com/group/palmmicro

See Also

• Palmmicro
• AR1688