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Audio DAC / Speaker Amplifier
ML2620GD/ML2620HP

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Loud sound speaker amplifier

Description

ML2620_chip_photo

ML2620GD/ML2620HP is speaker amplifier with circuit that enables louder sound from small speaker.
ML2620 integrates digital volume, ALC(automatic level controller), and fade-in and fade-out function.
ML2620 is suitable for portable applications such as mobile phone, portable TV and other thin and small playback devices that is difficult to generate enough volume.
ML2620GD is 20pin WQFN package; ML2620HP is ultra small (2.54mm×2.42mm) 20pin WCSP package.

Specification

  • CPU interface
    • 2 wire serial slave mode
    • 3 wire serial
  • Loud sound technology for small speaker
  • Automatic Level Controller (ALC)
  • Fade in and fade out function
  • Speaker amplifier
    • 8Ω 800mW monaural BTL speaker amplifier
  • Volume function
  • Clock
    • 32kHz to 20MHz
  • Power-supply voltage range:
    • IO: 1.65 to 3.60V
    • Core(LVDD): 2.25 to 2.75V
    • Speaker(HVDD): 2.70 to 5.50V
  • Package
    • ML2620GD: WQFN20 (4mm×4mm, 0.5mm pitch)
    • ML2620HP: WCSP20 (2.54mm×2.42mm, 0.5mm pitch)
*Please refer to the datasheet for details.
Parameter Symbol Rating Unit
Power-supply voltage
 HVDD 2.7-5.5 V
LVDD 2.25-2.75
IOVDD 1.65-3.6
Clock frequency
 Fc 0.032-20 MHz
Sperker output
 Po 800 ｍW
Output load resistor
 RLOAD 8 Ω

Block Diagram

ML2620_block_fig

Typical Application Example

ML2620_application_circuit

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Contact

Please inquire from Inquiry page.