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ZL38012LDF1 56-VFQFN Exposed Pad
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Voice Processor with Dual Narrow Band Codecs 56Pin QFN EP T/R

Manufacturer :
Microchip Technology, Inc
Package/Case :
56-VFQFN Exposed Pad
Product Categories :
Audio Special Purpose
RoHs Status:
Lead free / RoHS Compliant

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ZL38012LDF1 Product Details

Microsemi AcuEdge™ Technology ZL38012LDF1 is a hardware platform designed to support advanced acoustic echo canceller and noise reduction with the ZLS38507 firmware pack for hands-free car applications.Simplified Block Diagram Typical ApplicationsHands-free car kitsFull duplex speaker-phone for digital telephoneEcho cancellation for video conferencesIntercom SystemsSecurity SystemsFeatures & BenefitsVoice processor with hardware acceleratorOn-board memoryDual ΔΣ ADCs with input buffer gain selection programmable to 8 kHz samplingDual ΔΣ DACs with output sampling of 8 kHzDual function Inter-IC Sound (I2S) or Secondary TDM portPrimary 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/secSeparate slave (microcontroller) and master (Flash) SPI ports, maximum clock rate = 25 MHz5 General Purpose Input/Output (GPIO) pins General purpose UART portBootloadable for future software upgradesExternal oscillator or crystal/ceramic resonator1.2 V Core; 3.3 V IO with 5 V-tolerant inputsFirmware OverviewMicrosemi AcuEdge™ Technology ZLS38507 - Firmware for Hands-free ApplicationSelectable Acoustic and Line Echo Cancellers (AEC & LEC) with  acoustic Noise ReductionProgrammable echo tail cancellation length from 8 to 256 msNoise Reduction - up to 20 dB for white noiseNon-linear Echo ControllerNo divergence due to double-talk (patented Adaption Control)Superior voice quality with patented Non-Linear Processor (NLP)Patented Narrow-band signal divergence protectionPatented Anti-howling - prevents oscillation in  echo canceller audio pathSpeaker path AGC (Rout)DocumentationZL38012LDF1 Data Sheet Software ManualsZLS38507 Firmware Manual Application NotesZLE38470 Automatic Tuning Guide AGC Settings for ZLS38507 Product PreviewsZL38012LDF1 Product PreviewVoice Processor Product Selection Guide Downloads, Firmware and DriversIBIS Models:ZL38012LDG1 IBIS Evaluation BoardsZLE38012 User's Guide Software URLZLS38507: Speakerphone FirmwareZLS38508LITE: MiTuner LITE GUIZLS38520: SPI driverMaximizeDownloadPartsTotal: 2Matching: 2ResetCompare PartsPart Status In ProductionPackage Type 56 QFN 8x8Package Carrier Tape & Reel TrayZL38012LDF1In Production56 QFN 8x8Tape & ReelZL38012LDG1In Production56 QFN 8x8TrayOrder Status Sales Contacts RFQ/SAMPLESContact SupportDocuments and ResourcesPackaging InformationProduct PortalsQualityReturnsTraining


  • Voice processor with hardware accelerator
  • On-board memory
  • Dual ΔΣ ADCs with input buffer gain selection programmable to 8 kHz sampling
  • Dual ΔΣ DACs with output sampling of 8 kHz
  • 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
  • 5 General Purpose Input/Output (GPIO) pins General purpose UART port
  • Bootloadable for future software upgrades
  • External oscillator or crystal/ceramic resonator
  • 1.2 V Core; 3.3 V IO with 5 V-tolerant inputs


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

Technical Parameters

Function Voice Processor Operating Temperature -40??C ~ 85??C (TA)
Applications Communication Systems Specifications 163.84Mbps
Number of Channels 2 Package / Case 56-VFQFN Exposed Pad
Interface I2S, SPI, UART Supplier Device Package 56-QFN (8x8)
Voltage Supply 1.2V

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Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of...

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