Microsemi Corporation ZL38040LDG1

Description
The Microsemi AcuEdge Technology ZL38040 Advanced Wideband Audio Processor is designed to provide leading edge acoustic echo cancellation and noise reduction for the Wideband Speakerphone and Home Automation markets.
The ZL38040 device is a highly adaptable hardware platform designed to support highperformance audio processing applications.
The ZL38040 provides a powerful DSP with voicespecific hardware accelerators, two digital microphone interfaces, two independent 16bit DACs, and two flexible TDM interfaces in a single 64pin QFN package.
The Microsemi AcuEdge Technology ZLS38040 licensefree Firmware provides Acoustic Echo Cancellation (AEC), noise reduction, and a variety of other voice enhancements to improve both the intelligibility and subjective quality of voice in harsh acoustic environments.

Features
DSP with Voice Hardware Accelerators
Dual AE DACs with output sampling up to 48 kHz and internal output drivers
4 singleended or 2 differential Output Amps
44.1/48 kHz Stereo Music Playback with Voice
Two Digital Microphone inputs supporting up to 3 Microphones
Two TDM ports shared between PCM and InterIC Sound (I²S). Each port provides sample rate conversion and synchronous and asynchronous TDM bus operation
SPI Slave port for host processor interface
Master SPI port for serial Flash interface
14 General Purpose Input/Output (GPIO) pins
Keypad Scanner (up to a 7x7 array)
Generalpurpose UART port
Boots from SPI, UART, or Flash allowing easy firmware updates. Can run unattended (controllerless), selfbooting into a configured operational state
Ultralow and Standby off power
Full duplex operation supports AEC (up to 256 ms) in both Narrowband and Wideband operation (8 kHz or 16 kHz respectively)
Psychoacoustic noise reduction
Single microphone
Stationary noise reduction
DTMF Detection
AGC/ALC
Dynamic Range Compression
Builtin support for G.712 and G.722
Single and Dual Tone Generation
CID Type 1 and 2 Detection
Call Progress Tone Detection
G.168 and G.169 compliant Line Echo Cancellation (LEC)
MiTuner™ GUI Software
Automated AEC tuning
Microsemi AcuEdge TM Technology

Applications
Wideband Speakerphone
Home Automation