ZL38004

A full Design Manual is available to qualified customers. To register, please send an email to VoiceProcessing@Zarlink.com.

The ZL38004 is supported by the ZLS38500 firmware pack for hands-free car kits and the ZLS38501 firmware pack for speakerphone.

Features

• 100 MHz (200 MIPs) Zarlink voice processor with Butterfly hardware accelerator and breakpoint/interrupt controller
• Dual ΔΣ ADCs with input buffer gain selection programmable to either 8 or 16 kHz sampling
• Dual ΔΣ 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 Sound (I2S) or Secondary TDM port
• Primary PCM port supports TDM (ST BUS, GCI or McBSP framing) or SSI modes at bit rates of 128, 256, 512, 1024, 2048, 4096, 8192 or 16384 Kb/sec
• Separate slave (microcontroller) and master (Flash) SPI ports, maximum clock rate = 25 MHz
• 11 General Purpose Input/Output (GPIO) pins
• Programmable tail length range from 16 ms to 256 ms
• Supports AEC and LEC working in back to back mode
• Up to 20 dB noise reduction for white noise and up to 30 dB for car noise
• Clipping Compensation
• Converges during double-talk
• Programmable sidetone

Typical Applications

• Hands-free car kits
• Full duplex speaker-phone for digital telephone
• Echo cancellation for video conferences
• Intercom Systems
• Security Systems

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