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AK4421A

Asahi Kasei Microsystems
Part Number AK4421A
Manufacturer Asahi Kasei Microsystems
Description 192kHz 24-Bit Stereo DAC
Published Aug 8, 2016
Detailed Description [AK4421A] AK4421A 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output GENERAL DESCRIPTION The AK4421A is 3.3V 24-bit stereo ...
Datasheet PDF File AK4421A PDF File

AK4421A
AK4421A


Overview
[AK4421A] AK4421A 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output GENERAL DESCRIPTION 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.
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 † 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 or 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 x 5.
0mm) MCLK SMUTE DIF Control Interface LRCK BICK SDTI Audio Data Interface Clock Divider 8X Interpolator ΔΣ Modulator SCF LPF 8X Interpolator ΔΣ Modulator SCF LPF Charge Pump CP CN VEE VSS2 CVDD 2.
2 μ 2.
2μ VDD DZF VSS1 AOUTL AOUTR MS1086-E-01 -1- 2009/09 ■ Ordering Guide AK4421AET AKD4421A ■ Pin Layout -20 ∼ +85°C 16pin TSSOP (0.
65mm pitch) Evaluation Board for AK4421A [AK4421A] CN CP SMUTE MCLK BICK SDTI LRCK DIF 1 2 3 4 5 6 7 8 AK4421A Top View 16 VEE 15 VSS2 14 CVDD 1...



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