voice

CX20921 Datasheet – Voice Input Processor ( PDF )

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Part Number: CX20921

Function: Dual-Mic Far-Field Voice Processor

Package: 60-QFN 7mm x 7mm

Manufacturer: Conexant Systems, Synaptics

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CX20921 Voice Processor

Description

The CX20921 is a high-performance, far field voice input processor System-on-Chip (SoC). The device is the first product in this category with an integrated voice trigger function that supports a low system power Wakeon-Voice (WoV) function.

When ADC and DSP are active in the Wake-on-Voice (WoV) mode, the device consumes less than 70mW, which is well below the 0.5W European Commission (EC) 1275/2008 requirement for standby power.

Pinout

CX20921 datasheet pinout

Features

1. Low-power WoV mode with an embedded third-party speech recognition engine
2. Compatible with multiple leading embedded and server-based speech recognition vendors
3. Powerful, dual-core 32-bit DSP
4. Multiple Integrated Interchip Sound (I2S) serial data interfaces
5. Inter-Integrated Circuit (I2C) serial control interface

 

Applications

1. Voice-controlled Smart TV/STB
2. Smart Bluetooth/WiFi speaker
3. Voice interactive smart appliance
4. Internet of Things (IOT) devices
5. Automotive hands-free control/communication

Other data sheets are available within the file: CX20921-21Z, CX20921-99Z

CX20921 Datasheet PDF Download

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ISD5008ZD Datasheet PDF – Voice Record / Playback Device

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Part Number: ISD5008ZD

Function: Single-Chip Voice Record / Playback Device

Package: 28-Pin TSOP, 28-Pin Type

Manufacturer: Winbond, ISD, Nuvoton

Pinouts:
ISD5008ZD datasheet

Description

The ISD5008ZD ChipCorder product is a 3V fully-integrated, single-chip solution which provides seamless
integration of enhanced voice record and playback features for digital cellular phones (GSM, CDMA,
TDMA, PDC, and PHS), automotive communications, GPS/navigation systems, and portable
communication products. This low-power, 3-volt device enables customers to quickly and easily
integrate 4 to 8 minutes of voice storage features such as one-way or two-way (full duplex) call record,
voice memo record, and call screening/answering machine functionality.

Features

1. Fully-Integrated Solution
(1) Single-chip voice record/playback solution
(2) Integrated sampling clock, anti-aliasing and smoothing filters, and MLS array
(3) Integrated analog features such as automatic gain control (AGC), audio gating switches, speaker driver, summing amplifiers, volume control, and AUX IN/AUX OUT interface (e.g., for car kits)

 

components

Other data sheets are available within the file: ISD5008BE, ISD5008ED, SD5008EI, ISD5008P, ISD5008S

ISD5008ZD Datasheet PDF Download

ISD5008ZD pdf