To learn more about the voice processing products, including technical documents, please contact your sales representative.

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

Features & Benefits

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

Related Products

Part Number	Description
ZL38003	AEC with Noise Reduction & Codecs for Digital Hands-Free Communication
ZL38002	AEC with Noise Reduction for Digital Hands-Free Communication
ZL38001	AEC for Analog Hands-Free Communication
MT93L16	Low-Voltage Acoustic Echo Canceller

Documentation

• zl38004-datasheet-may2006.pdf

Packaging Outline Drawings

• gpd00253-package-outline.pdf

Software Manuals

• zls38502-firmware-manual-may2007.pdf

Application Notes

• zlan55-appnote-aug2003.pdf

Product Previews

• design-tools-product-preview-may2007.pdf
• zl38004-product-preview-jun2006.pdf

Downloads, Firmware and Drivers

BSDL Files:
• zl38004qc.bsd
• zl38004gg.bsd

IBIS Models:
• zl38004qcg1.ibs
• zl38004ggg2.ibs

Firmware:
• zls38500-firmware-jun2006.pdf

Typical Applications

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

Product Packaging & Availability

Part Number	Package Type	Pin Count	Lead-Free Option	Shipping Option(s)	Lead Time(wks)	Status
ZL38004GGG2	FBGA	96	Pb-free-Tin/Silver/Copper	Trays. Bake & Drypack	6-8 weeks	Production
ZL38004QCG1	LQFP	100	Pb-free-Matte Tin	Trays. Bake & Drypack	6-8 weeks	Production
ZL38005GGG2	FBGA	96	Pb-free-Tin/Silver/Copper	Trays. Bake & Drypack	26 Week(s)	Production

Packaging Information

• Soldering Profiles
• Moisture Sensitivity
• Shelf Life
• Reliability Data

Technical Support

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