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DIGITAL AUDIO deltasigma DACs
AK4440
5V 192kHz 24-Bit 8ch DAC with 2Vrms Output
The AK4440 is a 5V 24-bit 8ch DAC with an integrated 2Vrms output buffer. A charge pump in the buffer develops an internal negative power supply rail that enables a ground-referenced 2Vrms output. Using AKM’s multi bit modulator architecture, the AK4440 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4440 integrates a combination of switched-capacitor and continuous-time filters, increasing performance for systems with excessive clock jitter. The 24-bit word length and 192kHz sampling rate make this part ideal for a wide range of consumer audio applications, such as DVD, AV receiver system and set-top boxes.

AK4440
  • Applications: Digital TVs/STBs, DVD/BD Players and Recorders, A/V Receivers
  • Sampling Rate Ranging from 8kHz to 192kHz
  • 24Bit 8 times Digital Filter with Slow roll-off option
  • THD+N: -94dB
  • Dynamic Range: 106dB
  • High Tolerance to Clock Jitter
  • Single-ended Ground-referenced 2Vrms Output Buffer with 2nd order Analog LPF
  • Digital De-emphasis for 32, 44.1 & 48kHz sampling
  • Soft mute
  • Automatic Power-on Reset Circuit
  • 3-wire Serial and I2 C Bus microP I/F for mode setting
  • I/F format: MSB justified, LSB justified (16bit, 20bit, 24bit), I2S, TDM
  • Master clock: 256fs, 384fs, 512fs or 768fs or 1152fs (Normal Speed Mode)
    128fs, 192fs, 256fs or 384fs (Double Speed Mode)
    128fs or 192fs (Quad Speed Mode)
  • Power Supply: +4.5 to +5.5V
  • Ta = -20 to 85°C
  • Small Package: 30 pin VSOP
  • Evaluation Board: AKD4440
PDF
Download		 PDF Data Sheet
Rev. MS1088-E-01 2011/03
PDF : 649KB / 31pages		 PDF Evaluation Board Manual
Rev. KM097204 2009/05
PDF : 1729KB / 29pages
AK4440 BLOCK DIAGRAM

AK4440 BLOCK DIAGRAM
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