ISD2360YYI
Description
The ISD2360 is a 3-channel digital ChipCorder® providing single-chip storage and playback of high quality audio. The ISD2360 features digital de-compression, comprehensive memory management, Flash storage, an integrated audio signal path with up to 3 channel concurrent playback and a Class D speaker driver capable of delivering 1 W of power.
Key Features
- Duration o ISD2360 - 64 seconds based on 8kHz/4bit ADPCM in 2Mbit of flash storage (256KB)
- Audio Management o Store pre-recorded audio (Voice Prompts) using high quality digital compression o Use simple index based command for playback - no address needed o Execute pre-programmed macro scripts (Voice Macros) designed to control the configuration of the device and playback Voice Prompts sequences
- Path and playback Control o Up to 3 channel audio streaming can be mixed and played back concurrently o Each channel has independent counter which enables user micro-management on VM execution o Mask Jump allows branch execution depending on internal register or external GPIO pin status
- Control o Serial SPI interface for microprocessor control and programming o Stand-alone control where customized Voice Macro scripts are assigned to GPIO trigger pins
- Sample Rate o 7 sampling frequencies 4, 5.3, 6.4, 8, 12.8, 16 and 32 kHz are available o Each Voice Prompt can have optimal sample rate
- Compression Algorithms o µ-Law: 6, 7 or 8 bits per sample o Differential µ-Law: 6, 7 or 8 bits per sample o PCM: 8, 10 or 12 bits per sample o Enhanced ADPCM: 2, 3, 4 or 5 bits per sample o Variable-bit-rate optimized compression. This allows best possible compression given a metric of SNR and background noise levels
- Oscillator o Internal oscillator with internal reference: factory trimmed to ±1% deviation at room temperature
- Output o PWM: Class D speaker driver to direct drive an 8Ω speaker or buzzer o Delivers: - 4Ω load: 400mW @3.3V; 1.1W @5V; 1.3W @5.5V Feb 1, 2023 Page 4 of 35 Rev 1.8 - 8Ω load: 330mW @3.3V; 850mW @5V; 1W @5.5V
- I/Os o SPI interface: MISO, MOSI, SCLK, SSB for commands and digital audio data o 6 general purpose I/O (GPIO) pins multiplexed with SPI interface
- Flash Storage o 2Mbits of storage for combined audio/data o Fast programming time (20µs/byte) o Erase sector size 1Kbyte, sector erase time 2ms o Integrated memory checksum calculation for fast verification o Endurance >100K cycles. Retention > 10 years
