SI5374B-A-BL Equivalent & Substitute Parts

Part Overview

The SI5374B-A-BL is a Clock Generator and Jitter Attenuator IC manufactured by Skyworks Solutions Inc., designed for high-performance timing applications requiring low-jitter clock distribution. This device operates at frequencies up to 808MHz and supports multiple output formats including CML, LVCMOS, LVDS, and LVPECL. The part is currently in Active product status with 876 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require alternative qualified components that maintain electrical and mechanical compatibility within the same functional category.

Key Parameters

Parameter	Value
Manufacturer	Skyworks Solutions Inc.
Category	Clock/Timing
Type	Clock Generator, Jitter Attenuator
Frequency - Max	808MHz
Number of Circuits	4
Output Formats	CML, LVCMOS, LVDS, LVPECL
Voltage - Supply	1.71V ~ 2.75V
Operating Temperature	-40°C ~ 85°C
Package / Case	80-LBGA
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the SI5374B-A-BL is determined by strict equivalence across the following critical parameters:

Maximum frequency: 808MHz
Number of circuits: 4
Output format support: CML, LVCMOS, LVDS, LVPECL
Supply voltage range: 1.71V ~ 2.75V
Operating temperature range: -40°C ~ 85°C
Package type: 80-LBGA
Mounting type: Surface Mount
Differential input/output capability: Yes/Yes
Divider/Multiplier functionality: Yes/Yes
PLL integration: Yes

The SI5374C-A-GL meets all electrical and mechanical parameters required for direct substitution. Both parts share the same base product number (SI5374), identical frequency specifications, circuit count, output formats, supply voltage, temperature range, and package configuration.

Parameter Comparison

Parameter	SI5374B-A-BL (Main)	SI5374C-A-GL (Substitute)
Manufacturer	Skyworks Solutions Inc.	Skyworks Solutions Inc.
Category	Clock/Timing	Clock/Timing
Type	Clock Generator, Jitter Attenuator	Clock Generator, Jitter Attenuator
Frequency - Max	808MHz	808MHz
Number of Circuits	4	4
Output Formats	CML, LVCMOS, LVDS, LVPECL	CML, LVCMOS, LVDS, LVPECL
Voltage - Supply	1.71V ~ 2.75V	1.71V ~ 2.75V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	80-LBGA	80-LBGA
Supplier Device Package	80-PBGA (10x10)	80-PBGA (10x10)
Mounting Type	Surface Mount	Surface Mount
Differential Input/Output	Yes/Yes	Yes/Yes
Divider/Multiplier	Yes/Yes	Yes/Yes
PLL	Yes	Yes
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
ECCN	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001
Product Status	Active	Not For New Designs

Engineering Selection Recommendations

The SI5374B-A-BL is the preferred selection for new designs due to its Active product status, ensuring long-term availability and manufacturer support. This part carries full production qualification and is recommended for applications requiring extended lifecycle support.

The SI5374C-A-GL is electrically and mechanically equivalent and may be used as a substitute when SI5374B-A-BL availability is constrained. However, this part carries a "Not For New Designs" status, indicating it is in a mature or transitional phase of its product lifecycle. The SI5374C-A-GL is suitable for legacy system maintenance, repair operations, or applications where design freeze has already occurred.

Both parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Selection between these parts should be based on project lifecycle stage and inventory availability rather than electrical performance, as all functional parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can SI5374C-A-GL be used as a direct replacement for SI5374B-A-BL in new designs?

A: SI5374C-A-GL meets all electrical and mechanical specifications for functional equivalence. However, it carries "Not For New Designs" status. New designs should specify SI5374B-A-BL to ensure long-term support and availability.

Q: Are there any differences in output signal quality between these parts?

A: Both parts share identical frequency specifications (808MHz maximum), output format support (CML, LVCMOS, LVDS, LVPECL), and jitter attenuation functionality. No performance differentiation exists between the two parts.

Q: Do both parts require the same PCB footprint and layout considerations?

A: Yes. Both parts use the 80-LBGA package with 80-PBGA (10x10) supplier device package configuration. PCB footprints, solder pad layouts, and thermal management requirements are identical.

Q: What is the significance of the "Not For New Designs" status on SI5374C-A-GL?

A: This designation indicates the part is in a mature lifecycle phase. Skyworks Solutions recommends SI5374B-A-BL for new product development. SI5374C-A-GL remains available for existing applications and field replacements.

Q: Are supply voltage and operating temperature ranges identical?

A: Yes. Both parts operate across 1.71V to 2.75V supply voltage and -40°C to 85°C temperature range. System power supply and thermal design requirements are unchanged between parts.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both parts are classified as MSL 3 (168 Hours), requiring identical handling, storage, and reflow procedures during assembly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message