ISD15108FYI Datasheet | Nuvoton Technology

DESCRIPTION The ISD15100 series is a multi-message Chip Corder® featuring digital pression, prehensive memory management, flash storage, and integrated analog/digital audio signal paths. The message management feature is designed to make message recording simple and address-free as well as make code development easier for playback-only applications. This family utilizes flash memory to provide non-volatile audio record/playback with durations up to 8 minutes for a single-chip solution. Unlike other Chip Corder series, the ISD15100 series provides an I2S digital audio interface, faster digital recording, higher sampling frequency, and a signal path with SNR equivalent to 12bit resolution. The ISD15100 series can take digital audio data via I2S or SPI interface. When I2S input is selected, it will replace the analog audio inputs and will support sample rates of 32, 44.1 or 48 k Hz depending upon clock configuration. When SPI interface is chosen, the sample rate of the audio data sent must be one of the ISD15100 supported sample rates. The ISD15100 series has built-in analog audio inputs, analog audio line driver, and speaker driver output. The two analog audio inputs to the device are: (1) AUXIN has a fixed gain configured by SPI mand, and (2) ANAIN/ANAOUT has a fixed gain amplifier with the gain set by two external resistors. ANAIN/ANAOUT can also be used as a microphone differential input (ANAIN/ANAOUT bees MIC+/MIC-) in conjunction with an automatic gain control (AGC) circuit configured by SPI mand. Analog outputs are available in three forms: (1) AUXOUT is a single-ended voltage output; (2) AUDOUT can be configured as either a single-ended voltage output or a single-ended current output; (3) BTL (bridge-tied-load) is a differential voltage output. 2 FEATURES - Fast Digital Programming o Programming rate can go up to 1Mbits/second mainly limited by the flash memory write rate. - Duration o 2 to 8 minutes based on 8k Hz/4bit ADPCM - Message Management o Perform...