LMK00304 Series

3.1-GHz differential clock buffer/level translator with 4 configurable outputs

Catalog

3.1-GHz differential clock buffer/level translator with 4 configurable outputs

Part	Ratio - Input:Output	Supplier Device Package	Mounting Type	Frequency - Max [Max]	Output	Number of Circuits	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Type	Input	Function	Utilized IC / Part	Supplied Contents	Contents
Texas Instruments LMK00304SQE/NOPB	3:5	32-WQFN (5x5)	Surface Mount	3.1 GHz	HCSL LVCMOS LVDS LVPECL	1	85 °C	-40 °C	3.45 V	3.15 V	Fanout Buffer (Distribution) Multiplexer Translator	CML Crystal HCSL HSTL LVDS LVPECL SSTL
Texas Instruments LMK00304SQ/NOPB	3:5	32-WQFN (5x5)	Surface Mount	3.1 GHz	HCSL LVCMOS LVDS LVPECL	1	85 °C	-40 °C	3.45 V	3.15 V	Fanout Buffer (Distribution) Multiplexer Translator	CML Crystal HCSL HSTL LVDS LVPECL SSTL
Texas Instruments LMK00304SQX/NOPB	3:5	32-WQFN (5x5)	Surface Mount	3.1 GHz	HCSL LVCMOS LVDS LVPECL	1	85 °C	-40 °C	3.45 V	3.15 V	Fanout Buffer (Distribution) Multiplexer Translator	CML Crystal HCSL HSTL LVDS LVPECL SSTL
Texas Instruments LMK00304EVM/NOPB											Timing		Clock Distribution	LMK00304	Board(s)	Board(s)

Catalog

3.1-GHz differential clock buffer/level translator with 4 configurable outputs

Key Features

• 3:1 Input MultiplexerTwo Universal Inputs Operate up to 3.1 GHz and Accept LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or Single-Ended ClocksOne Crystal Input Accepts a 10-MHz to 40-MHz Crystal or Single-Ended ClockTwo Banks With 2 Differential Outputs EachLVPECL, LVDS, HCSL, or Hi-Z (Selectable)LVPECL Additive Jitter with LMK03806 Clock Source at 156.25 MHz:20 fs RMS (10 kHz to 1 MHz)51 fs RMS (12 kHz to 20 MHz)High PSRR: –65 / –76 dBc (LVPECL/LVDS) at 156.25 MHzLVCMOS Output with Synchronous Enable InputPin-Controlled ConfigurationVCCCore Supply: 3.3 V ± 5%3 Independent VCCOOutput Supplies: 3.3 V/2.5 V ± 5%Industrial Temperature Range: –40°C to +85°C32-lead WQFN (5 mm × 5 mm)3:1 Input MultiplexerTwo Universal Inputs Operate up to 3.1 GHz and Accept LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or Single-Ended ClocksOne Crystal Input Accepts a 10-MHz to 40-MHz Crystal or Single-Ended ClockTwo Banks With 2 Differential Outputs EachLVPECL, LVDS, HCSL, or Hi-Z (Selectable)LVPECL Additive Jitter with LMK03806 Clock Source at 156.25 MHz:20 fs RMS (10 kHz to 1 MHz)51 fs RMS (12 kHz to 20 MHz)High PSRR: –65 / –76 dBc (LVPECL/LVDS) at 156.25 MHzLVCMOS Output with Synchronous Enable InputPin-Controlled ConfigurationVCCCore Supply: 3.3 V ± 5%3 Independent VCCOOutput Supplies: 3.3 V/2.5 V ± 5%Industrial Temperature Range: –40°C to +85°C32-lead WQFN (5 mm × 5 mm)

Description

The LMK00304 is a 3-GHz 4-output differential fanout buffer intended for high-frequency, low-jitter clock/data distribution and level translation. The input clock can be selected from two universal inputs or one crystal input. The selected input clock is distributed to two banks of 2 differential outputs and one LVCMOS output. The differential output banks can be mutually configured as LVPECL, LVDS, or HCSL drivers, or disabled. The LVCMOS output has a synchronous enable input for runt-pulse-free operation when enabled or disabled. The LMK00304 operates from a 3.3 V core supply and 3 independent 3.3 V/2.5 V output supplies. The LMK00304 provides high performance, versatility, and power efficiency, making it ideal for replacing fixed-output buffer devices while increasing timing margin in the system. The LMK00304 is a 3-GHz 4-output differential fanout buffer intended for high-frequency, low-jitter clock/data distribution and level translation. The input clock can be selected from two universal inputs or one crystal input. The selected input clock is distributed to two banks of 2 differential outputs and one LVCMOS output. The differential output banks can be mutually configured as LVPECL, LVDS, or HCSL drivers, or disabled. The LVCMOS output has a synchronous enable input for runt-pulse-free operation when enabled or disabled. The LMK00304 operates from a 3.3 V core supply and 3 independent 3.3 V/2.5 V output supplies. The LMK00304 provides high performance, versatility, and power efficiency, making it ideal for replacing fixed-output buffer devices while increasing timing margin in the system.