CDCL1810RGZRG4 Equivalent & Substitute Parts

Part Overview

The CDCL1810RGZRG4 is a Clock Fanout Buffer (Distribution), Divider IC manufactured by Texas Instruments, designed for high-speed clock distribution applications. This 1:10 differential clock buffer operates at frequencies up to 650 MHz with LVDS input and CML output, housed in a 48-VFQFN Exposed Pad package. The part is currently discontinued at DiGi Electronics, making identification of active equivalent alternatives essential for ongoing production and design continuity.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Clock/Timing
Type	Fanout Buffer (Distribution), Divider
Ratio - Input:Output	1:10
Differential - Input:Output	Yes/Yes
Input Signal Type	LVDS
Output Signal Type	CML
Frequency - Max	650 MHz
Voltage - Supply	1.7V ~ 1.9V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	48-VFQFN Exposed Pad
Supplier Device Package	48-VQFN (7x7)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the CDCL1810RGZRG4 is determined by strict equivalence across the following critical parameters:

Functional Architecture: 1:10 fanout buffer with differential input and output
Signal Integrity: LVDS input, CML output configuration
Frequency Performance: 650 MHz maximum operating frequency
Electrical Specifications: 1.7V to 1.9V supply voltage range
Thermal Performance: -40°C to 85°C operating temperature range
Physical Form Factor: 48-VFQFN Exposed Pad package (7x7 mm)
Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The substitute parts CDCL1810ARGZT and CDCL1810RGZT maintain identical parametric specifications across all functional and electrical characteristics. The primary distinction is packaging format (Tape & Reel) and product status (Active vs. Discontinued).

Parameter Comparison

Parameter	CDCL1810RGZRG4	CDCL1810ARGZT	CDCL1810RGZT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Type	Fanout Buffer (Distribution), Divider	Fanout Buffer (Distribution), Divider	Fanout Buffer (Distribution), Divider
Ratio - Input:Output	1:10	1:10	1:10
Differential - Input:Output	Yes/Yes	Yes/Yes	Yes/Yes
Input Signal Type	LVDS	LVDS	LVDS
Output Signal Type	CML	CML	CML
Frequency - Max	650 MHz	650 MHz	650 MHz
Voltage - Supply	1.7V ~ 1.9V	1.7V ~ 1.9V	1.7V ~ 1.9V
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	48-VFQFN Exposed Pad	48-VFQFN Exposed Pad	48-VFQFN Exposed Pad
Supplier Device Package	48-VQFN (7x7)	48-VQFN (7x7)	48-VQFN (7x7)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Discontinued at DiGi Electronics	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both CDCL1810ARGZT and CDCL1810RGZT are direct parametric equivalents to the CDCL1810RGZRG4. Selection between these alternatives should be based on the following factors:

Product Status: The CDCL1810RGZRG4 is discontinued, making the active alternatives CDCL1810ARGZT and CDCL1810RGZT the only viable options for new designs and ongoing production requirements.

Regulatory Compliance: All three parts maintain identical ROHS3 compliance and REACH Unaffected status, ensuring compatibility with current environmental and regulatory standards.

Packaging Considerations: The substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. If bulk packaging is required, consult with the manufacturer or authorized distributors for alternative packaging options.

Inventory Availability: CDCL1810RGZT offers the highest current inventory (6153 Pcs), followed by CDCL1810ARGZT (775 Pcs), making CDCL1810RGZT the preferred choice for immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can CDCL1810ARGZT and CDCL1810RGZT be used interchangeably with CDCL1810RGZRG4?

A: Yes. Both substitute parts are parametrically identical across all functional, electrical, and thermal specifications. The differences are limited to product status (Active vs. Discontinued) and packaging format (Tape & Reel vs. Bulk).

Q: What is the difference between CDCL1810ARGZT and CDCL1810RGZT?

A: Both parts are functionally and electrically identical. The primary distinction is inventory availability, with CDCL1810RGZT currently stocked at higher quantities (6153 Pcs vs. 775 Pcs).

Q: Are there any package compatibility concerns when switching to the substitute parts?

A: No. All three parts use the identical 48-VFQFN Exposed Pad package (7x7 mm). PCB footprints and assembly processes remain unchanged.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. CDCL1810ARGZT and CDCL1810RGZT maintain identical ROHS3 compliance and REACH Unaffected status as the original CDCL1810RGZRG4.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts have an MSL rating of 3 (168 Hours), indicating identical moisture handling and storage requirements.

Q: Can these parts operate at frequencies below 650 MHz?

A: Yes. The 650 MHz specification is the maximum operating frequency. These parts function across the full frequency range up to this maximum, including lower frequencies.

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