A fast and a slow roll-off filter are available in each of Single, Double, and Quad Speed modes. Interpolation Filter (Control Port Mode) To accommodate the increasingly complex requirements of digital audio systems, the CS4398 incorporates selectable interpolation filters. DESCRIPTION Left Justified 24-bit data 24-bit data Right Justified, 16-bit Data Right Justified, 24-bit Data DESCRIPTION 18 MCLK cycles. Quad-Speed mode supports input sample rates up to 200 kHz and uses an oversampling ratio of 32x. Double-Speed mode supports input sample rates up to 100 kHz and uses an oversampling ratio of 64x. Single-Speed mode supports input sample rates kHz and uses a 128x oversampling ratio. Oversampling Modes The CS4398 operates in one of three oversampling modes based on the input sample rate. The external-bias voltage level that the MUTEC pins see at the time of release of reset must meet the “. Upon release of reset, the CS4398 will detect the status of the MUTEC pins (high or low) and will then select that state as the polarity to drive when the mutes become active. The external mute circuitry needs to be self biased into an active state in order to be muted during reset. Typical Connection Diagram CS4398 0 AMUTEC Left Channel Analog AOUTA - Conditioning and Mute AOUTA+ AOUTB+ Right Channel Analog AOUTB - Conditioning and Mute BMUTEC. SCLK LRCK SDIN VLS DSD_SCLK DSD_A DSD_B CS4398 VLC M0 (AD0/CS) M1 (SDA/CDOUT) M2 (SCL/CCLK) M3 (AD1/CDIN) RST DGND AGND Figure 10.
#CIRRUS LOGIC CS4398”. SERIAL#
3 3 kHz) PSRR (60 Hz Qmax (Note 21 Symbol I in Symbol V Serial I Control I Serial I/O V Control I/O CS4398 Min Typ Max - 1 258 340 - 192 240 - 200. Hi-Im pedance t csc do CS4398 Unit MHz ns ns µ DS568A1. SCL dst fc t sust Format CS4398 (Inputs: Unit kHz ns µs µs µs µs µs µs ns µs ns µ top. AGND = DGND Logic 1 = VLS Volts Symbol t sclkl t sclkh (64x Oversampled) (128x Oversampled) t sdlrs t sdh t dpm t t sclkl t t sdlrs sdh Phase Modulation mode CS4398 Min Typ Max Unit 160 - 160 - 1.024 - 3.2 MHz 2.048 - 6.4 MHz. Format 24-bit Data + Format 3, Right Justified 24-Bit Data. Serial Mode Input Timing Min Typ Max 100 100 - 200 40% - 60% 45 - ( ) Fs 128 - ( ) - M CLK sclkh slrs t sclkl t sdh CS4398 Units kHz kHz kHz DS568A1. 635 (Note kHz - CS4398 The Typ Max Unit. THD+N 24-bit 0 dB -20 dB -60 dB 16-bit 0 dB (Note 2) -20 dB -60 dB A-Weighted unweighted (Note 3) THD - kHz) ICGM PCM, DSD processor Direct DSD mode Z OUT CS4398 Min Typ Max 114 120 - 111 117 -105 -94. Control port interface V not guaranteed at these extremes. C) / Control Data Input (SPI) (Input) - AD1 is a chip address pin Control Data Output (SPI) (Input/Output) - SDA is a data I/O line Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I CS4398 2 C mode CDIN mode. Pinout Drawing CS4398 DSD_A VLS VQ AMUTEC AOUTA- AOUTA+ VA AGND AOUTB+ AOUTB- BMUTEC VREF REF_GND FILT Patent Rights to use DS568A1. 31 7.7 Ramp and Filter Control - Register 07h. 31 7.6 Channel B Volume Control - Register 06h. 30 7.5 Channel A Volume Control - Register 05h. The CS4398 accepts PCM data at sample rates from 32 kHz to 200 kHz, DSD audio data, has selectable dig- ital filters, consumes little power, and delivers excellent sound quality. It also offers an optional path for direct DSD conversion by di- rectly using the multi-element switched capacitor array. Copyright © (All Rights Reserved) CS4398 ultibit lte r. Cirrus Logic reserves the right to modify this product without notice. This document contains information for a new product.
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