DSD1794DB Equivalent & Substitute Parts

Part Overview

The DSD1794DB is a 24-bit audio digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for high-resolution audio applications supporting both DSD and PCM data interfaces. This component operates across a wide temperature range (-25°C to 85°C) and is housed in a 28-SSOP surface mount package.

The DSD1794DB is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

DSD1794DB

Texas InstrumentsIn Stock: 1174DSD1794DB Datasheet

Current PartRFQ

DSD1794ADB

Texas InstrumentsIn Stock: 933DSD1794ADB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DSD1794DB is determined by the following critical parameters:

• Resolution (Bits): 24 bits
• Sampling Rate (Per Second): 200 kHz
• Number of Channels: 3
• Data Interface: DSD, PCM
• Package / Case: 28-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount
• Operating Temperature Range: -25°C to 85°C
• RoHS Compliance: ROHS3 Compliant

The DSD1794ADB qualifies as a direct substitute because it maintains identical specifications across all critical electrical and mechanical parameters. Both components share the same base product number (DSD1794), confirming functional equivalence within the Texas Instruments product family.

Parameter Comparison

Engineering Selection Recommendations

The DSD1794ADB is the direct substitute for the DSD1794DB. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters including resolution, sampling rate, channel count, data interface support, and package configuration.

The primary distinction is product status: the DSD1794DB is obsolete while the DSD1794ADB is active. Selection of the DSD1794ADB ensures continued access to supply, ongoing manufacturer support, and compliance with current regulatory requirements (ROHS3 and REACH).

Both components meet identical compliance certifications and environmental specifications, confirming functional and regulatory equivalence for direct substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the DSD1794ADB directly replace the DSD1794DB in existing designs?

A: Yes. The DSD1794ADB is a direct substitute. Both components share identical electrical specifications (24-bit resolution, 200 kHz sampling rate, 3-channel configuration, DSD/PCM interface support) and mechanical specifications (28-SSOP package, surface mount mounting type, -25°C to 85°C operating range).

Q: What is the primary reason to transition from DSD1794DB to DSD1794ADB?

A: The DSD1794DB is classified as obsolete, while the DSD1794ADB is active. Transitioning to the DSD1794ADB ensures long-term supply availability and continued manufacturer support.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components maintain identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1). Regulatory and environmental specifications are equivalent.

Q: Is the package configuration identical between both parts?

A: Yes. Both the DSD1794DB and DSD1794ADB use the 28-SSOP package with 0.209" width (5.30mm). PCB layout and footprint compatibility are maintained.

Q: Are there voltage supply differences between the DSD1794DB and DSD1794ADB?

A: The DSD1794ADB specifies voltage supply as 3V to 3.6V and 5V. The DSD1794DB does not include explicit voltage supply specifications in the provided data. Both components support analog and digital voltage supply sources.