CDCVF2509APWR PLL Clock Driver IC Equivalent & Substitute Parts

Part Overview

The CDCVF2509APWR is a PLL Clock Driver IC manufactured by Texas Instruments, designed for clock distribution and timing applications. This device features a 175MHz maximum frequency with LVTTL input/output signaling and operates from a 3V to 3.6V supply. The part is classified as Obsolete, which necessitates identification of equivalent substitute components for ongoing system support and new procurement requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	CDCVF2509APWR
Manufacturer	Texas Instruments
Category	Clock/Timing
Type	PLL Clock Driver
Frequency - Max	175MHz
Input/Output Signaling	LVTTL
Voltage - Supply	3V ~ 3.6V
Operating Temperature	0°C ~ 85°C
Package / Case	24-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CDCVF2509APWR are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Package / Case: 24-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
Input/Output Signaling: LVTTL
Voltage - Supply: 3V ~ 3.6V
Operating Temperature: 0°C ~ 85°C
PLL with Bypass capability
Number of Circuits: 1

Frequency Performance Consideration: The CDCVF2509APWR operates at a maximum frequency of 175MHz with a 2:10 input-to-output ratio. Substitute parts may vary in maximum frequency specification while maintaining the same electrical interface and package footprint.

Parameter Comparison

Parameter	CDCVF2509APWR	CDCVF2509PWR	CDC2509CPWR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Category	Clock/Timing	Clock/Timing	Clock/Timing
Type	PLL Clock Driver	PLL Clock Driver	PLL Clock Driver
Frequency - Max	175MHz	175MHz	125MHz
Ratio - Input:Output	2:10	2:10	1:9
Input/Output Signaling	LVTTL	LVTTL	LVTTL
Voltage - Supply	3V ~ 3.6V	3V ~ 3.6V	3V ~ 3.6V
Operating Temperature	0°C ~ 85°C	0°C ~ 85°C	0°C ~ 85°C
Package / Case	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
PLL with Bypass	Yes	Yes	Yes
Number of Circuits	1	1	1
Product Status	Obsolete	Active	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

CDCVF2509PWR is the primary substitute for CDCVF2509APWR. This part maintains identical electrical specifications including 175MHz maximum frequency, 2:10 input-to-output ratio, LVTTL signaling, and 24-TSSOP package. The CDCVF2509PWR carries Active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and share the same base product number (CDCVF2509), confirming functional equivalence.

CDC2509CPWR is a secondary substitute option. This part shares the same package, mounting type, supply voltage, operating temperature range, and PLL with bypass functionality. However, CDC2509CPWR operates at a maximum frequency of 125MHz with a 1:9 input-to-output ratio, representing reduced frequency performance compared to the CDCVF2509APWR. The CDC2509CPWR carries a Not For New Designs status. This part is suitable only for applications where the lower frequency specification and different ratio are compatible with system requirements.

Frequently Asked Questions (FAQ)

Q: Can CDCVF2509PWR directly replace CDCVF2509APWR in existing designs?

A: Yes. The CDCVF2509PWR is a direct electrical and mechanical equivalent. Both parts share identical frequency specifications (175MHz), input-to-output ratio (2:10), package footprint (24-TSSOP), and electrical interface (LVTTL, 3V-3.6V supply). No circuit modifications are required.

Q: What are the key differences between CDCVF2509PWR and CDC2509CPWR?

A: The primary differences are frequency performance and input-to-output ratio. CDCVF2509PWR operates at 175MHz with a 2:10 ratio, while CDC2509CPWR operates at 125MHz with a 1:9 ratio. Both share the same package and electrical interface. Selection depends on whether your application requires the higher frequency and specific ratio of the CDCVF2509PWR.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitute parts use the 24-TSSOP (0.173", 4.40mm Width) surface mount package. PCB footprints and assembly processes remain unchanged.

Q: What is the significance of product status when selecting a substitute?

A: Product status indicates supply availability and manufacturer support. CDCVF2509PWR (Active status) is recommended for new designs and long-term procurement. CDC2509CPWR (Not For New Designs status) should be used only when frequency and ratio specifications are compatible and only for legacy system support.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed parts are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and distribution.

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