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DIGITAL AUDIO DACs
AK4370
Low Power 24-Bit DAC with HP-Amp, Mixer & Lineout
The AK4370 is 24-bit DAC with headphone amplifier. The AK4370 features an analog mixing circuit that allows easy interfacing in the mobile phone and portable communication designs. The integrated headphone amplifier features “pop-noise free” power-on/off, a mute control, and it delivers 40mW of power into 16omega. The AK4370 is packaged in a 24-pin QFN (4mm×4mm) package, ideal for portable applications.

AK4370
  1. Applications: Mobile Phone, PDA, Portable Media Player
  2. Multi-bit deltasigma DAC
  3. Sampling Rate
       - 8kHz ~ 48kHz
  4. On chip perfect filtering 8 times FIR interpolator
       - Passband: 20kHz
       - Passband Ripple: ±0.02dB
       - Stopband Attenuation: 54dB
  5. Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
  6. System Clock
       - 256fs/384fs/512fs/768fs/1024fs
       - Input Level: AC Couple Input Available
  7. Audio I/F Format: MSB First, 2’s Complement
       - I2S, 24bit MSB justified, 24bit/20bit/16bit LSB justified
       - Master/Slave Mode
  8. Digital Mixing: LR, LL, RR, (L+R)/2
  9. Bass Boost Function
  10. Digital ATT
  11. Analog Mixing Circuit: 4 Inputs (Single-ended or Full-differential)
  12. Stereo Lineout
       - S/N: 90dB@3.3V
       - Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step
  13. Headphone Amplifier
       - Output Power: 40mW x 2ch @16omega, 3.3V
       - S/N: 92dB@3.3V
       - Pop Noise Free at Power-ON/OFF and Mute
       - Output Volume: 0 ~ –63dB & +12/+6/0 dB Gain
    1.5dB step (0 ~ –30dB), 3dB step (–30 ~ –63dB)
  14. microP Interface: 3-wire/I2C
  15. Power Supply: 1.6V ~ 3.6V
  16. Power Supply Current: 3.8mA @1.8V (6.8mW, DAC+HP, No output)
  17. Ta: -30 ~ 85°C
  18. Small Package: 24pin QFN (4mm x 4mm, 0.5mm pitch)
  19. Register Compatible with AK4368
  20. Evaluation Board: AKD4370
PDF
Download		 PDF Data Sheets
Rev. MS0595-E-00 2007/03
PDF : 706KB / 49pages		 PDF Evaluation Board Manual
Rev. KM086300 2006/12
PDF : 846KB / 30pages
AK4370 BLOCK DIAGRAM
AK4370 BLOCK DIAGRAM
To inquire for this product  |  USA   /   English