AK4425A

[AK4425A] AK4425A 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output GENERAL DESCRIPTION The AK4425A 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 AK4425A delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4425A 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 AK4425A 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 Filter: 32kHz, 44.1kHz or 48kHz † Soft mute † Digital Attenuator (Linear 256 Step) † Control I/F: 3-wire † Audio I/F format: 24Bit MSB justified, 24/20/16 LSB justified or I2S compatible † Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode) 128fs, 192fs, 256fs or 384fs (Double Speed Mode) 128fs, 192fs (Quad Speed Mode) † TH...