[AK4424]
Part | Datasheet |
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AK4424ET (pdf) |
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[AK4424] AK4424 192kHz 24-Bit Stereo DAC with 2Vrms Output The AK4424 is a 5V 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 AK4424 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4424 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. The AK4424 is offered in a space saving 16pin TSSOP package. FEATURES 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 Digital de-emphasis Soft mute I/F format 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 105dB Automatic Power-on Reset Circuit Power supply ~ +5.5V Ta = -20 to 85°C Small Package 16pin TSSOP 6.4mm x 5.0mm MCLK SMUTE DEM Control Interface LRCK BICK SDTI Audio Data Interface MS0935-E-03 De-emphasis Control Clock Divider 8X Interpolator Modulator SCF LPF 8X Interpolator Modulator SCF LPF Charge Pump CN VEE VSS2 CVDD VDD DZF VSS1 AOUTL AOUTR 2010/09 • Ordering Guide AK4424ET AKD4424 • Pin Layout -20 ~ +85°C 16pin TSSOP 0.65mm pitch Evaluation Board for AK4424 [AK4424] MCLK BICK SDTI LRCK SMUTE AK4424 Top View VSS2 CVDD VSS1 AOUTL AOUTR • Main Difference Between AK4420, AK4421 and AK4424 Digital de-emphasis I/F format Pin out Power Supply THD+N DR Pin#3 Pin#8 Operating Temperature AK4420 24-bit MSB justified SMUTE DIF ~ +5.5V -92dB 105dB ET -20 ~ +85°C VT -40 ~ +85°C AK4421 - 24-bit MSB justified SMUTE DIF ~ +3.6V -92dB -3dBFS 102dB ET -20 ~ +85°C AK4424 X DEM SMUTE ~ +5.5V -92dB 105dB ET -20 ~ +85°C - Not available X Available MS0935-E-03 -2- |
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