CNEN

USB Audio series

KT0203N

产品概述

KT0203N is a USB audio codec single-chip that provides processing USB audio signals.
KT0203N integrates many interfaces including analog microphone input, low-noise microphone amplifier, low-noise microphone bias circuit, digital audio interface(I2S), audio digital signal processor, clock oscillator, LDO, USB interface, 2-wire interface, etc.
KT0203N integrates a USB 2.0 function controller and transceiver, it is compatible with full-speed mode, USB HID device class 1.11 and Audio device class 1.0. It can support all major commercial operating systems (such as Windows, Linux and Android) without drivers.
KT0203N integrate with an audio digital signal processor (DSP), which can realize the audio processing functions such as audio equalizer (EQ), howling suppressing, frequency shift, echo, reverb,virtual surround, dynamic range compress, mixer, etc.
KT0203N can realize the various audio processing configurations via FLASH and configure USB VID/PID information.
KT0203N integrates digital audio interface(I2S) coordinate with KT065x chip which can reduce BOM and minimalize DA/AD converting lost. At same time, can extend high performance Codec to meet high quality requirement.
KT0203N has internal oscillator and no external crystal is required. 9 GPIOs are available for customers. It has the 2-wire interface, PWM output (breathing light), auxiliary ADC input, external interrupt, etc.
KT0203N total solution which greatly reduce the difficulty and cost of the development. It also improves the reliability and consistency of products, which making products easier to production.

主要特性

General characteristics
Integrated with audio digital signal processor;
Integrated with a clock oscillator and
no need for external crystal;
Integrated with 7 channels 8-bit SAR ADC;
Integrated LDO;
Integrated with mono audio ADC, SNR 93.5dB,
THD-87dB;
Integrated with low-noise microphone bias circuit, with adjustable bias voltage;
Integrated with low-noise microphone amplifier circuit;
 
USB Controller 
Conform to the specifications for full-speed transmission mode of USB 1.1/2.0;
Compatible with USB Audio device class 1.0;
Compatible with USB HID device class 1.11;
Driver free;
 
DSP Function 
Configurable audio equalizer;
Configurable audio dynamic range compression function.
Configurable howling suppressing;
Configurable frequency shift;
Configurable echo;
Configurable mixer;
Configurable reverb;
Configurable virtual surround;
Configurable auto gain control;
 
Others
Power voltage range (4.5V-5.5V);
Available for configuration of VID, PID and other information;
Integrated with FLASH to allow customer for secondary development programs;
9 configurable GPIO ports;
2-wire interface;
Breathing light.
 
Package

QFN-40 5 mm * 5 mm
Environmental protection
Compliant with Pb-free and RoHS standards.

主要应用

USB Dongle
USB Microphone