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The ISD3800 is a digital ChipCorder® featuring digital compression, comprehensive memory management, and integrated analog/digital audio signal paths. The ISD3800 utilizes serial flash memory to provide non-volatile audio playback for a two-chip solution. The ISD3800 provides an I²S digital audio interface, faster digital programming, higher sampling frequency, and a signal path with SNR 80dB.

The ISD3800 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 kHz depending upon clock configuration. When SPI interface is chosen, the sample rate of the audio data sent must be one of the ISD3800 supported sample rates.

The ISD3800 has inbuilt analog audio inputs, analog audio line driver, and speaker driver output.

The analog audio input, Aux-in, has a fixed gain configured by SPI command. Aux-in can directly feed-through to the analog outputs; it can also mix with the DAC output and then feed-through to the analog outputs.

Analog outputs are available in two forms: (1) Aux-out is an analog single-ended voltage output; (2) Class-AB BTL (bridge-tied-load) is an analog differential voltage output. Class-AB BTL delivers 1-watt output power at V CCSPK = 5V.

Class-D PWM direct-drive is also available, which delivers 1-watt output power at V CCSPK = 5V

  • Operating Voltage: 2.7 ~ 5.5V
  • Standby Current: 1uA typical
  • Package:
  • Green 48L-LQFP
  • Temperature Options:
  • Industrial: -40℃ to 85℃


Data Sheet

  • Data Sheet

  • File name Version Update Download
  • ISD3800 Datasheet.pdf 1.0  Tue Jan 28 06:25:14 CST 2014
  • Software

  • File name Version Update Download
  • ISD-VPE15D00 Version 15D.0013 For Windows XP 15D.0013  Tue Sep 27 05:21:19 CST 2011
  • ISD-VPE15D00 Version 15D.0013 For Windows 7 32bit 15D.0016  Fri Sep 23 01:11:38 CST 2011
  • ISD-VPE15D00 for Windows7 32bit 15D.0017  Thu Jul 09 09:51:03 CST 2015
  • ISD-VPE15D00 for Windows7 64bit 15D.0016  Fri Sep 06 04:06:40 CST 2013
  • Development Tool

  • File name Version Update Download
  • ISD-DM3800 Quick Start Guide 1.0  Thu Apr 14 05:34:20 CST 2016
  • ISD-ES-MINI-USB User Manual 1.1  Sat Apr 23 01:19:40 CST 2016
  • User Manual

  • File name Version Update Download
  • ISD3800 Design Guide 1.1  Thu Mar 12 06:59:53 CST 2015
  • ISD API User Manual 1.0  Thu Sep 19 05:38:34 CST 2013
  • ISD-DEMO15D00/3800 Demo board user manual 0.1  Thu Sep 19 03:24:27 CST 2013
  • ISD-ES_MINI_USB USB dongle manual Rev 1.0  Fri Feb 19 04:35:07 CST 2016
  • App Note: Use_Nuvoton_Audio_PA_to_amplify_the_ChipCorder_device_PWM_output 0.1  Sat Sep 21 05:00:06 CST 2013
  • App Note: ISD_15D00_3800_Troublehooting_Guideline 0.00  Sat Sep 21 04:57:39 CST 2013
  • App Note: Nuvoton_ChipCorder_One-Pin_Control_Implementation_User_Guide 0.2  Sat Sep 21 05:00:25 CST 2013


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Part No. Check Disty Description Duration Sample Rate(kHz) Voltage Package Temperature Status
ISD3800 Check Disty Multi-message playback-only with I2S digital audio and SPI interfaces Ext. Flash up to 64 min Up to 48khz 2.7 to 5.5V LQFP48, QFN32 Industrial -40 to 85 ° C Mass Production

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