DIGITAL AUDIO   DACs |
| AK4421A |
| 3V 192kHz 24-Bit 2ch DAC with 2Vrms Output |
| *Not Recommended for New Designs. For New Designs:AK4430 |
| The AK4421A is 3.3V 24-bit stereo 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 AK4421A delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4421A 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 portable A/V players, set-top boxes, and digital televisions. The AK4421A is offered in a space saving 16pin TSSOP package |
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- Applications: Set Top Boxes, DVD Recorders/Players, Digital TVs, and AV Receivers
- Sampling Rate Ranging from 8kHz to 192kHz
- 128 times Oversampling (Normal Speed Mode)
- 64 times Oversampling (Double Speed Mode)
- 32 times Oversampling (Quad Speed Mode)
- 24-Bit 8 times FIR Digital Filter
- Switched-Capacitor Filter with High Tolerance to Clock Jitter
- Single Ended 2Vrms Output Buffer
- Soft mute
- I/F format: 24-Bit MSB justified or I2S
- Master clock:
 512fs, 768fs or 1152fs (Normal Speed Mode)
256fs or 384fs (Double Speed Mode)
128fs, 192fs (Quad Speed Mode)
- THD+N: -92dB
- Dynamic Range: 102dB
- Automatic Power-on Reset Circuit
- Power supply: +3.0 ~ +3.6V
- Ta = -20 to 85°C
- Small Package: 16pin TSSOP (6.4mm
 5.0mm)
- Evaluation Board: AKD4421A
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PDF
Download |
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Data Sheet
Rev. MS1086-E-01 2009/09
PDF : 335KB / 19pages
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Evaluation Board Manual
Rev. KM098701 2009/04
PDF : 593KB / 22pages |
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| AK4421A BLOCK DIAGRAM |
