KX1400 Features

Plays Pre-recorded 8 kHz Audio

Data

Operates Standalone or as MCU

Peripheral

On-chip Tone Generator

Built-in Digital Audio Processor

Integrated Class-D Speaker

Driver

No External Low-pass Filter

Required

Digital Volume Control

On-chip Oscillator - No XTAL

Required

Plays up to 4096 Pre-recorded

Audio Phrases

Configurable General-purpose

Clock Output

Two General-purpose Digital

Outputs

Low-power Standby State (1 µA

Typ.)

Operating Voltage: 2.7V - 5.5V

Operating Temperature: -40°C to

85°C

Package:

– 24-pin 4X4mm QFN

(KX1400EG)

Conexant Product Portfolio

Conexant’s comprehensive product portfolio includes solutions for imaging, audio, video surveillance, and embedded modem applications.

KX1400 Functional Block Diagram

The KX1400 is offered in a 24-pin 4X4mm QFN (KX1400EG) package

Digital

Audio

Processor

Memory

I/F

Clock

D ivider

MCU

I/F

Tone

Generator

C ontrol

Volum e

C ontrol

CLKOUT

RST

SC L

SD I

CS

RDY

MSIZ E

VD D

VDD2

GND

MODE

GPO2

SPO+

SPO-

GPO2

MISO

MOSI

M SSL

MCLK

C lass-D

Amp

8 M H z Osc.

BU SY

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