ZL38004 - Dedicated Voice Processor

The ZL38004 is a hardware platform designed to support advanced acoustic echo canceller (with noise reduction) firmware applications available from Zarlink Semiconductor.

These applications are resident in external memory and are down-loaded by the ZL38004 resident boot code during initialization.

• 100 MHz (200 MIPs) Zarlink voice processor with Butterfly hardware accelerator and breakpoint/interrupt controller On-board Data (26 Kbytes), Instruction (24 Kbytes RAM and Boot (3 Kbytes) ROM Dual ∆Σ ADCs with input buffer gain selection programmable to either 8 or 16 kHz sampling Dual ∆Σ DACs with output sampling of 8, 16, 44.1 and 48 kHz and internal output driver 2048 tap Filter co-processor shared across up to 16 separate functions in 128 tap increments Dual function Inter-IC Soun.