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Vedi Specifiche Tecniche

840271BGILF +BOM

Synchronous Ethernet Frequency Translator

Produttore:

Renesas Electronics Corporation
ProduttorePart #:

840271BGILF
Scheda dati:

840271BGILF Scheda dati (PDF)
Programmabe:

Not Verified
PLL:

Yes
Main Purpose:

Ethernet
Input:

HCSL, LVDS, LVHSTL, LVPECL, SSTL
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per 840271BGILF

E-mail: [email protected]

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840271BGILF Descrizione generale

The 840271I is a PLL-based Frequency Translator intended for use in telecommunication applications such as Synchronous Ethernet. The internal PLL translates Ethernet clock frequencies such as 125MHz (1Gb Ethernet), 156.25MHz (10GbE XAUI) and 161.1328MHz (10Gb Ethernet) to an output frequency of 25MHz. The PLL does not any require external components. The input frequency is selectable by a 2-pin interface. The 840271I is optimized for low cycle-to-cycle jitter on the 25MHz output signal. The input of the device accepts differential (LVPECL, LVDS, LVHSTL, SSTL, HCSL) or single-ended (LVCMOS) signals. The extended temperature range supports telecommunication and networking equipment requirements. The 840271I uses a small RoHS 6, 8-pin TSSOP package and is an effective solution for space-constrained applications.

Caratteristiche principali

Clock frequency translator for Synchronous Ethernet applications
One single-ended output (LVCMOS or LVTTL levels), 16Ω output impedance
Differential input pair (CLK, nCLK) accepts LVPECL, LVDS, LVHSTL, SSTL, HCSL input levels
Supports input clock frequencies of: 125MHz, 156.25MHz or 161.1328MHz
Generates a 25MHz output clock signal
Internal resistor bias on nCLK pin allows the user to drive CLK input with external single-ended (LVCMOS/LVTTL) input levels
Internal PLL is optimized for low cycle-to-cycle jitter at the output
Full 3.3V or 2.5V supply voltage
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package

Specifiche

Series	-	Programmabe	Not Verified
PLL	Yes	Main Purpose	Ethernet
Input	HCSL, LVDS, LVHSTL, LVPECL, SSTL	Output	LVCMOS, LVTTL
Number of Circuits	1	Ratio - Input:Output	1:1
Differential - Input:Output	Yes/No	Frequency - Max	25MHz
Voltage - Supply	2.375V ~ 3.465V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	840271B

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