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Product Detailed Parameters
- Description：SIGMADSP 3-CHANNEL, 26-BIT SIGNA
- Series：SigmaDSP®
- Mfr：Analog Devices Inc.
- Package：Bulk
- Type：DAC, Audio
- Number of Channels：3
- Resolution (Bits)：26 b
- Sampling Rate (Per Second)：48k
- Data Interface：DSP, I2S, SPI
- Voltage Supply Source：Analog and Digital
- Voltage - Supply：4.5V ~ 5.5V, 4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Surface Mount
- Package / Case：44-QFP
- Supplier Device Package：44-MQFP (10x10)
- Grade：-
- Qualification：-
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Overview
The AD1954YSZ is a SigmaDSP digital audio processor featuring integrated 24-bit, 3-channel delta-sigma DACs. It operates on a single 5 V supply and supports sample rates up to 48 ksps with a maximum clock frequency of 12.288 MHz. The device utilizes an SPI interface for control and data transmission. Housed in a 48-pin LQFP package (7 x 7 mm), it functions within a temperature range of -40°C to +105°C. Power dissipation is rated at 510 mW, with a typical operating current of 80 mA.
Feature Summary
- Integrated 24-bit resolution with 3 simultaneous output channels
- SigmaDSP architecture with onboard converters
- Single 5 V power supply operation
- SPI serial interface compatibility
Applications
- High-fidelity audio processing systems
- Professional audio equipment requiring low-latency conversion
- Embedded audio solutions with strict size constraints
Procurement Notes
Verify the specific suffix 'YSZ' against official Analog Devices documentation to confirm pinout and packaging variations compared to other variants like 'YSTZ'. Ensure compliance with RoHS directives as indicated in manufacturer specifications. Confirm availability through authorized distributors, as stock levels fluctuate.
Selection Notes
Select this component when a combined DSP and DAC solution is required to reduce board space. The 48-pin LQFP package suits surface-mount applications. Verify that the system clock does not exceed 12.288 MHz and that the thermal design accommodates 510 mW dissipation in the target enclosure.
Part Context
This part belongs to the AD1954 series of audio DSPs from Analog Devices. It integrates signal processing capabilities directly with high-resolution digital-to-analog conversion, eliminating the need for separate DSP and DAC components in many audio architectures.
Replacement Considerations
Consult Analog Devices datasheets for direct pin-compatible alternatives within the same family. Cross-reference with AD1954YSTZ for packaging differences. No third-party substitutes are officially confirmed.
