MS87V1021

Features: • Serial microcontroller interface (clock synchronized)• Built-in 512-Kbit mask ROM for fixed messages ROM playback time : Approx. 15 seconds (Fsam = 8.0 kHz) Approx. 20 seconds (Fsam = 6.4 kHz) Approx. 30 seconds (Fsam = 4.0 kHz)• Voice analyzing and synthesizing syste...

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SeekIC No. : 004427442 Detail

MS87V1021: Features: • Serial microcontroller interface (clock synchronized)• Built-in 512-Kbit mask ROM for fixed messages ROM playback time : Approx. 15 seconds (Fsam = 8.0 kHz) Approx. 20 second...

floor Price/Ceiling Price

Part Number:
MS87V1021
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: 2024/11/26

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Product Details

Description



Features:

• Serial microcontroller interface (clock synchronized)
• Built-in 512-Kbit mask ROM for fixed messages
   ROM playback time :
   Approx. 15 seconds (Fsam = 8.0 kHz)
   Approx. 20 seconds (Fsam = 6.4 kHz)
   Approx. 30 seconds (Fsam = 4.0 kHz)
• Voice analyzing and synthesizing system :
   4-bit OKI ADPCM or 4-bit OKI ADPCM2 algorithm
   8-bit OKI non-linear PCM algorithm (for ROM playback only)
• Sampling frequency (source oscillation frequency: 4.096 MHz) :
   4.0 kHz, 5.3 kHz, 6.4 kHz, 8.0 kHz, or 10.6 kHz
• Recording time:
   Approx. 60 seconds (Fsam = 8.0 kHz)
   Approx. 80 seconds (Fsam = 6.4 kHz)
   Approx. 120 seconds (Fsam = 4.0 kHz)
• Built-in 14-bit A-to-D and D-to-A converters
• Built-in LPF: Attenuation rate 40 dB/oct
• Number of phrases
   Variable message: 255 phrases
   Fixed phrases: 255 phrases
• Source oscillation frequency: 4.096 MHz
• Supply voltage: 2.7 to 3.6 V
• Operating current:
   15 mA max. (source oscillation frequency : 4.096 MHz, Supply voltage : 3.6 V)
• Operating temperature: 20 to +70° C
• Package: 32-pin TSOP Type I



Pinout

  Connection Diagram


Specifications

Parameter Symbol Condition Rated value Unit
Power supply voltage VDD Ta = 25 0.5 to 4.6 V
Pin voltage VT Ta = 25 0.5 to VDD+0.5 V
Output shortcircuit current IOS Ta = 25 50 mA
Power dissipation PD Ta = 25 1 W
Operating temperature TOPR - 20 to +70
Storage temperature TSTG - 55 to +150



Description

The MS87V1021 is a single chip recording and playback IC that is controlled by the microcontroller in serial mode, compresses voice with the 4-bit OKI ADPCM algorithm or 4-bit OKI ADPCM2 algorithm with high tone quality, and has 2-Mbit DRAM in which recorded data is stored and 512-Kbit mask ROM in which fixed messages reside. The MS87V1021 includes such features as Normal Recording and Playback, Delayed playback, Retroactive playback, Fast forwarding, and Rewinding.

The internal memory in which voice data is stored allows a recording/playback system to be constructed merely by externally connecting MS87V1021 to a microphone, a speaker driving amplifier, and a speaker.




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