6-channel, 24-bit sigma-delta DAC — parametric fit
The AD1833AST-REEL is a multi-channel 24-bit sigma-delta DAC from the AD1833 series, designed for multichannel audio playback and signal generation in professional and prosumer gear. Six independent DAC channels each resolve 24 b at sampling rates up to 192 kHz, covering the full audible band with margin for oversampling in digital crossover or active speaker designs. The digital interface accepts I²S, serial, and SPI — the SPI mode allows register configuration plus data streaming from a host MCU, while I²S is the native format for most audio codecs and DSPs.
Package, temperature grade, and board integration
Housed in a 48-LQFP (7x7 mm) — the 0.5 mm pitch QFP footprint routes out to inner layers on a standard 4-layer audio board without micro-vias. The supplier device package is 48-LQFP (7x7), matching the industry-standard JEDEC outline for this pin count. RoHS non-compliant per the listed status — the lead-free exemption does not apply here. For a BOM line that requires RoHS, this part is excluded unless a waiver or legacy-product carve-out is in place. The lead content is in the solder finish; the die and substrate are standard.