ISD-ES2360_MINI_PROG_S - Nuvoton Technology Corporation of America

ISD2360

Voice/Audio Digital ChipCorder® featuring Multi Channel Mixing

delivers highly integrated single chip solution ideal for wide range of

voice/audio applications in industrial and consumer markets

The ISD2360 is a 3-channel digital ChipCorder providing single-chip storage and playback of high quality audio. The

device features digital de-compression, comprehensive memory management, flash storage, integrated audio

signal path with up to 3 channel concurrent playback and Class D speaker driver capable of delivering power of

0.95W. This family utilizes flash memory to provide non-volatile audio playback with duration up to 64 seconds

(based on 8 kHz/4bit ADPCM compression) for a single-chip audio playback solution.

The ISD2360 can be controlled and programmed through an SPI serial interface or operated stand-alone by triggers

applied to the device’s six GPIO pins.

The ISD2360 requires no external clock sources or components except a speaker to deliver quality audio prompts

or sound effects to enhance user interfaces.

In addition the part can provide non-volatile flash storage in 1Kbyte sectors eliminating the need for additional

serial EEPROM/Flash devices.

Compared to previous ChipCorder series, this device provides higher sampling frequencies, improved SNR, lower

power, fast programming time and integrated program verification.

FEATURES

 New features

 Multi-channel: 3-channel mixing playback

 GPIO parallel processing: Support dynamic

change on GPIO output while the chip is in

playback

 EMI, EFT, ESD improvement

 0.95W power at 5V

 Duration

 ISD2360 – 64 seconds based on 8kHz/4bit

ADPCM in 2Mbit of flash storage (256KB)

 Audio Management

 Store pre-recorded audio (Voice Prompts)

using high quality digital compression

 Use simple index based command for

playback – no address needed.

 Execute pre-programmed macro scripts

(Voice Macros) designed to control the

configuration of the device and playback Voice

Prompts sequences.

 Path and playback Control

 Up to 3 channel audio streaming can be

mixed and played back concurrently

 Each channel has independent counter

which enables user micro-management on VM

execution

 Mask Jump allows branch execution

depending on internal register or external GPIO

pin status

 Control

 Serial SPI interface for

microprocessor control and programming.

 Stand-alone control where

customized Voice Macro scripts are assigned to

GPIO trigger pins.

 Sample Rate

 7 sampling frequencies 4, 5.3, 6.4, 8, 12.8,

16 and 32 kHz are available.

 Each Voice Prompt can have optimal sample

rate.

 Compression Algorithms

 µ-Law: 6, 7 or 8 bits per sample

 Differential µ-Law: 6, 7 or 8 bits per sample

 PCM: 8, 10 or 12 bits per sample

 Enhanced ADPCM: 2, 3, 4 or 5 bits per

sample

 Variable-bit-rate optimized compression.

This allows best possible compression given a

metric of SNR and background noise levels.

 Oscillator

 Internal oscillator with internal reference:

factory trimmed to ±1% deviation at room

temperature.

 Output

 PWM: Class D speaker driver to direct drive

an 8Ω speaker or buzzer.

 Delivers 950mW at 5V supply

 Delivers 400mW at 3V supply.

 I/Os

 SPI interface: MISO, MOSI, SCLK, SSB for

commands and digital audio data

 6 general purpose I/O pins multiplexed with

SPI interface.

 Flash Storage

 2Mbit of storage for combined audio/data.

 Fast programming time (20µs/byte)

 Erase sector size 1Kbyte, sector erase time 2ms.

 Integrated memory checksum calculation for

fast verification.

 Endurance >100K cycles. Retention > 10 years

 Operating Voltage: 2.4-5.5V

 Package:

 green, QFN32 and SOP-16

 Temperature Options:

 Industrial: -40C to 85C

APPLICATIONS

 Industrial/Medical

 Portable personal medical meters

 Security keypad panels

 White Goods

 Instrumentations

 Automotive

 Metro bus announcement

 Consumer

 Downloadable audio photo frames and albums

 Toys

 Greeting Cards

BLOCK DIAGRAM

SPI Interface

GPIO

Interface

Digital Signal Path

Digital Filters

Digital Mixing

Resampling

Volume Control

Flash Memory Controller

Internal Flash

Memory

PWM

Control

SP+

Power

Conditioning

VCCD

VSSD

VCCDPWM

VSSDPWM

SCLK/GPIO(1)

MISO/GPIO(2)

INTB/GPIO(3)

MOSI/GPIO(0)

GPIO(5)

SSB

RDY/BSYB/GPIO(4)

De-Compression

Memory management and

Command Interpreter Ch3

Memory management and

Command Interpreter Ch1

Memory management and

Command Interpreter Ch2

SP-