HT8665

Features: ` Single power supply: 4.5V~5.5V` ADM algorithm` Auto playback with an echo effect` DRAM options: 64K 256K` Sampling rate options: 32K bps (bits per second) 16K bps` Recording capacity: 2, 4, 8, 16 seconds` A built-in 2 stage microphone amplifier` A built-in DRAM refresh circuit` A volta...

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HT8665 Picture
SeekIC No. : 004367150 Detail

HT8665: Features: ` Single power supply: 4.5V~5.5V` ADM algorithm` Auto playback with an echo effect` DRAM options: 64K 256K` Sampling rate options: 32K bps (bits per second) 16K bps` Recording capacity: 2,...

floor Price/Ceiling Price

Part Number:
HT8665
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/27

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Product Details

Description



Features:

` Single power supply: 4.5V~5.5V
` ADM algorithm
` Auto playback with an echo effect
` DRAM options:
64K
256K
` Sampling rate options:
32K bps (bits per second)
16K bps
` Recording capacity: 2, 4, 8, 16 seconds
` A built-in 2 stage microphone amplifier
` A built-in DRAM refresh circuit
` A voltage type D/A output
` A current type D/A output
` Auto power-off
` Low power dissipation



Application

· Toys
· Educations
· Games



Pinout

  Connection Diagram


Specifications

Supply Voltage .................................0.3V to 6V
Storage Temperature................. 50  to 125
Input Voltage................. VSS0.3V to VDD+0.3V
Operating Temperature............... 20  to 70



Description

The HT8665 is a single chip CMOS LSI using an ADM algorithm. It is designed for applications on talking back with an echo effect. Functions of the IC consist of recording/playing and auto power off in addition to an echo effect. The  IC starts recording when a sound input is detected, and stops to play back when silence lasts 0.5 seconds during recording. The auto power off function is activated once a REC/PLAY cycle has been implemented 64 times or an interval of silence exceeds 2 minutes.

The HT8665 provides a recording capacity of 2 seconds at a 32K bps sampling rate for DRAM of 64K (8 seconds for DRAM of 256K) and 4 seconds at a 16K bps sampling rate (16 seconds for DRAM of 256Kb). A higher sampling rate results in sounds of better quality but sacrifices the recording time, and vice versa.




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