DA7202

DA7202

10W Mono Class D amplifier for 2S battery operated portable devices

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10W Mono ClassD for 2S battery

DA7202 is a powerful, highly efficient, low EMI Class D speaker driver that can drive 10W into 4Ω loads directly from a 2S lithium-ion battery pack to power a variety of two cell portable applications such as Ultrabooks™ and tablets.
 
DA7202 uses a fully-differential switched mode amplifier architecture with a fixed +18 dB gain and differential analog inputs. It also has a PWM modulator and an H‑bridged switched power output stage that delivers 3.8 Wrms into an 8 Ω load (10.2W into a 4 Ω load), making a speaker sound louder in portable devices.

Features

  • Supports 4Ω and 8Ω loads
  • Input supply range: 4.5 to 9.0V
  • Prms : 9.0W into 4Ω load @ 8.2V, 1% THD+N
  • Prms : 10.2W into 4Ω load @ 8.2V, 10% THD+N
  • Prms : 3.8W into 8Ω load @ 8.2V, 1% THD+N
  • Prms : 5.0W into 8Ω load @ 8.2V, 10% THD+N
  • Efficiency: 85% @ Pout = 7.0W @ 8.2V, 4Ω
  • Efficiency: 90% @ Pout = 3.5W @ 8.2V, 8Ω
  • Ultra-low standby current : 7µA
  • SNR (A-weighted) 104dB
  • THD+N: 90dB
  • PSRR: 78dB
  • Fixed +18db gain

Benefits

  • Low Component Count
  • Small PCB area due to 9 bump WLCSP 0.5mm pitch package
  • Good PSRR and THD+N
  • Differential Audio inputs
  • Low EMI
  • Short circuit and thermal overload protection with auto recovery

Applications

  • UltrabooksTM
  • Tablets
  • Personal Navigation Devices
  • Speaker Accessories
  • Handheld Gaming
  • Mobile Computing
Package
9-WLCSP 0.5mm

Resources

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