CDC5801ADBQ PLL Multiplier/Divider IC Equivalent & Substitute Parts

Part Overview

The CDC5801ADBQ is a PLL Multiplier/Divider integrated circuit manufactured by Texas Instruments, designed for clock and timing applications. This device operates at frequencies up to 500MHz and is housed in a 24-SSOP surface mount package. The part is currently in active production status with full RoHS3 compliance.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design flexibility requires alternative sourcing options. The CDC5801DBQ represents a direct functional equivalent from the same manufacturer, though it carries an obsolete product status designation.

Substiute Parts

CDC5801ADBQ

Texas InstrumentsIn Stock: 1323CDC5801ADBQ Datasheet

Current PartRFQ

CDC5801DBQ

Texas InstrumentsIn Stock: 1722CDC5801DBQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDC5801ADBQ is determined by strict alignment across the following critical parameters:

• Device Architecture: PLL Multiplier/Divider functionality with bypass capability
• Frequency Performance: Maximum operating frequency of 500MHz
• Voltage Specifications: Supply voltage range of 3V to 3.6V
• Logic Interface Compatibility: LVCMOS and LVTTL inputs; LVDS, LVPECL, and LVTTL outputs
• Package Specification: 24-SSOP surface mount package with identical physical dimensions (0.154", 3.90mm Width)
• Temperature Rating: Operating range of -40°C to 85°C
• Compliance Standards: RoHS3 compliance and MSL Level 2 rating

The CDC5801DBQ meets all these criteria and qualifies as a direct functional substitute. Both parts share the same base product number (CDC5801) and are manufactured by Texas Instruments using identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CDC5801ADBQ is the preferred selection for new designs and production applications due to its active product status. This designation ensures ongoing manufacturer support, consistent supply availability, and compliance with current industry standards.

The CDC5801DBQ qualifies as a functional equivalent for applications where the primary part is unavailable. However, its obsolete status indicates that Texas Instruments has discontinued active production and support. Selection of the CDC5801DBQ should be limited to legacy system maintenance, repair operations, or temporary supply solutions.

Both parts maintain identical RoHS3 compliance and MSL Level 2 ratings, ensuring equivalent environmental and reliability performance in qualified applications. Pin-to-pin compatibility and electrical performance are identical across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can CDC5801DBQ be used as a direct replacement for CDC5801ADBQ in new designs?

A: Electrically and mechanically, yes. The CDC5801DBQ is functionally identical across all specified parameters. However, the obsolete status of CDC5801DBQ makes it unsuitable for new production designs. The CDC5801ADBQ should be the primary selection for new applications.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the identical 24-SSOP package with 0.154" width and 3.90mm dimensions. Pinout and package specifications are identical.

Q: What is the significance of the product status difference?

A: Active status (CDC5801ADBQ) indicates ongoing manufacturer production, technical support, and supply continuity. Obsolete status (CDC5801DBQ) indicates the manufacturer has discontinued production. For production applications, active parts are required.

Q: Are both parts RoHS3 compliant?

A: Yes. Both CDC5801ADBQ and CDC5801DBQ carry ROHS3 compliance certification and identical MSL Level 2 ratings.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution is determined by matching: device type (PLL Multiplier/Divider), maximum frequency (500MHz), supply voltage (3V to 3.6V), logic levels (LVCMOS/LVTTL input; LVDS/LVPECL/LVTTL output), package type (24-SSOP), and operating temperature range (-40°C to 85°C).

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Identical package specifications, pinout, and electrical performance allow direct substitution in existing designs without PCB modifications.