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SM6451B

Features: `Stereo inputs and outputs`Attenuation function • 2-channel independent control •1.0dB/step over 80 steps • 0 to−80dB range`Mute function`3-wire serial data control (MDT, MCK, MLEN) `Chip addressing (up to 4 devices can be connected in parallel)`Low noise • ...

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SeekIC No. : 004493954 Detail

SM6451B: Features: `Stereo inputs and outputs`Attenuation function • 2-channel independent control •1.0dB/step over 80 steps • 0 to−80dB range`Mute function`3-wire serial data control...

SM6451B Data Sheet

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Part Number:
SM6451B
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: 2025/12/27

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Product Details

Description



Features:

`Stereo inputs and outputs
`Attenuation function
   • 2-channel independent control
   • 1.0dB/step over 80 steps
   • 0 to−80dB range
`Mute function
`3-wire serial data control (MDT, MCK, MLEN)
`Chip addressing (up to 4 devices can be connected in parallel)
`Low noise
   • 0.003% THD + noise
   • 12Vrms residual noise
`2.5 to 3.6V single power supply
`Silicon-gate CMOS process
`Package: 16-pin TSSOP (Pb free)


Application

·Audio equipment


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Rating
Unit
Supply voltage
VDD
-0.3 to 7.0
V
Input voltage
VIN
VSS - 0.3 to VDD + 0.3
V
Power dissipation
PD
150
mW
Storage temperature
Tstg
-55 to 125
Note. Rating applies at power-ON and power-OFF.


Description

The SM6451B is a 3-wire serial-controlled electronic variable volume IC for audio applications. It provides electronic volume control for a stereo system (left and right channels), and independent channel attenuation and muting, with greatly enhanced digital zip noise suppression. The chip address function allows up to four SM6451B devices to be connected and individually controlled over the 3-wire control interface from a single CPU. It is available in 16-pin TSSOP packages.




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