DF1704E/2K Audio Interpolation Filter Equivalent & Substitute Parts

Part Overview

The DF1704E/2K is a 2-channel audio interpolation filter manufactured by Texas Instruments, designed for consumer and professional audio applications. This Surface Mount device operates across the 32kHz to 96kHz sampling frequency range and is housed in a 28-SSOP package. The DF1704E/2K is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new procurement strategies.

Substiute Parts

DF1704E/2K

Texas InstrumentsIn Stock: 1082DF1704E/2K Datasheet

Current PartRFQ

DF1704E

Texas InstrumentsIn Stock: 66184DF1704E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF1704E/2K is determined by strict alignment across the following critical parameters:

• Functional Category: Interpolation Filter with identical channel count (2 channels)
• Interface Protocol: I2S digital audio interface
• Electrical Specifications: Voltage supply range 4.5V ~ 5.5V and operating temperature range -25°C ~ 85°C
• Audio Performance: Sampling frequency range 32kHz ~ 96kHz
• Physical Form Factor: 28-SSOP Surface Mount package with identical dimensions (0.209", 5.30mm Width)
• Compliance Standards: ROHS3 Compliant, MSL Level 1

The DF1704E qualifies as a direct substitute based on matching all critical electrical, functional, and mechanical parameters while maintaining identical package specifications.

Parameter Comparison

Engineering Selection Recommendations

The DF1704E serves as the manufacturer-recommended substitute for the obsolete DF1704E/2K. Both parts maintain identical electrical specifications, functional performance, and physical packaging. The primary distinction is product lifecycle status: DF1704E/2K is classified as Obsolete, while DF1704E is classified as Not For New Designs.

For applications requiring the DF1704E/2K, the DF1704E provides functional continuity with full parameter compatibility. Both parts carry ROHS3 compliance and MSL Level 1 certification, ensuring environmental and reliability standards are maintained across the substitution.

Frequently Asked Questions (FAQ)

Q: Can the DF1704E directly replace the DF1704E/2K in existing designs?

A: Yes. The DF1704E matches all critical electrical, functional, and mechanical parameters of the DF1704E/2K. Both devices feature identical I2S interface, 2-channel configuration, 4.5V ~ 5.5V supply voltage, -25°C ~ 85°C operating temperature range, 32kHz ~ 96kHz sampling frequency support, and 28-SSOP package dimensions.

Q: What is the difference between DF1704E/2K and DF1704E?

A: The DF1704E/2K is Obsolete, while the DF1704E is classified as Not For New Designs. Functionally and electrically, both parts are identical. The difference reflects their product lifecycle status within Texas Instruments' portfolio.

Q: Are there any packaging differences between these parts?

A: No. Both the DF1704E/2K and DF1704E are supplied in 28-SSOP Surface Mount packages with identical dimensions (0.209", 5.30mm Width). Packaging specifications are fully compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the DF1704E/2K and DF1704E are ROHS3 Compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. Compliance certifications are identical across both parts.

Q: What sampling frequencies are supported by the DF1704E substitute?

A: The DF1704E supports the same sampling frequency range as the DF1704E/2K: 32kHz through 96kHz, covering standard consumer and professional audio applications.