SM5819

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The SM5819AF and SM5819HQF are 6-channel DSD data (64fs) to 4fs, 2fs or fs PCM data converters. During conversion, decimation filtering is performed using a filter with selectable fixed coefficients (3 sets). Also, DSD inputs and PCM outputs are available for use in master/slave clock mode operation, in a wide range of system configurations, making it easy to construct a multi-channel DSD/PCM reproduction system. SM5819HQF filter cut-off are set for highest quality and suitable for data acquisition

Key Features

512fs (22.5792 MHz, fs = 44.1 kHz), 1: 2 to 2: 1 duty master clock
DSD input and PCM output clock master/slave switching
3-system external data input (3-wire format),PCM output data/BCK/LRCK external input and internal filter output switching (BCK and LRCK are common to all 3 external PCM data inputs)
Decimation filter coefficients
- Fixed coefficients: 4fs-1/2fs-1/fs-1
PCM output mute operation
PCM output format: (MSB-first left-justified 32-bit) or (IIS 32-bit)
(IIS 32-bit output bit clock frequency = 64 x word clock frequency)
FIR filter coefficients
- 64fs --> 4fs/2fs/fs: 480th-order (6-channel)
- ROM coefficients: 24 valid data bits (4-bit MSB extension at 4fs, 5-bit MSB extension at 2fs/fs)
+ 6 dB DSD gain switching function
External/Internal system clock output switching
3.3V (3.0 to 3.6V) and 2.5V (2.3 to 2.7V) power supplies
-40 to 85°C operating temperature range
48-pin QFP package

Applications

Data Acquisition systems
Multi-channel SA-CD players
SA-CD-compatible AV amplifiers
Professional Quality Audio