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SM6800A

Features: ` Operating supply voltage: 2.7 to 4.3V` Low current consumption: 4.8mA (VDD= 3.6V)` Output power: 0.7W (VDD=3.6V, 8load)` Output fundamental frequency: 125kHz` Gain • 4.5dB (Normal) • 12dB to 4.5dB automatic adjustment in response to the input level (Dynamic range compressio...

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SeekIC No. : 004493972 Detail

SM6800A: Features: ` Operating supply voltage: 2.7 to 4.3V` Low current consumption: 4.8mA (VDD= 3.6V)` Output power: 0.7W (VDD=3.6V, 8load)` Output fundamental frequency: 125kHz` Gain • 4.5dB (Normal)...

SM6800A Data Sheet

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Part Number:
SM6800A
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

` Operating supply voltage: 2.7 to 4.3V
` Low current consumption: 4.8mA (VDD= 3.6V)
` Output power: 0.7W (VDD=3.6V, 8load)
` Output fundamental frequency: 125kHz
` Gain
   • 4.5dB (Normal)
   • 12dB to 4.5dB automatic adjustment in response to the input level (Dynamic range compression mode)
` Silicon-gate CMOS process
` Package: 20-pin QFN


Application

· Cellular phone
· PDA
· Digital still camera


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Rating
Unit
Supply voltage range VDDS,VDDP
-0.3 to 4.6
V
Supply voltage ground VSS
0
V
Input voltage range VIN
VSS - 0.3 to VDDS + 0.3
V
Storage temperature range TSTG
− 55 to +125
Output current IO
300
mA
Power dissipation1
PD
340
mW













1. Under NPC measurement conditions,Ja=116.2°C/W.
The power dissipation is given by: PD=((TJMAX−Ta)/Ja) where TJMAX=125°C and Ta=85°C



Description

The SM6800A is an analog-input, class-D mono amplifier. Class-D operation provides high efficiency and low power consumption. The device also incorporates a selectable real-time operation dynamic range compression function that effectively suppresses the distortion in the saturation level region output by soft-clipping, boosting the average sound pressure from the speaker during playback. It also incorporates an input equalizer pin for output speaker frequency characteristics adjustment. These features make the device ideal for use in mobile telephones and speaker applications requiring miniaturization and high-efficiency. The output stage has a BTL output configuration where the output waveform inverts only the modulation components, enabling direct driveconnection, without using an LC filter, to a dynamic speaker. The device is available in miniature 20-pin QFN  packages, and requires only a peripheral chip capacitor to form a miniature amplifier circuit.




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