Integrated Circuits (ICs)

8T49N205A-999NLGI

Obsolete

Renesas Electronics Corporation

FEMTOCLOCK NG UNIVERSAL FREQUENCYTRANSLATOR WITH PHASE BUILD-OUT

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Integrated Circuits (ICs)

8T49N205A-999NLGI

Obsolete

Renesas Electronics Corporation

FEMTOCLOCK NG UNIVERSAL FREQUENCYTRANSLATOR WITH PHASE BUILD-OUT

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	8T49N205A-999NLGI

Differential - Input:Output [custom]	True
Differential - Input:Output [custom]	True
Divider/Multiplier	Yes/No
Frequency - Max [Max]	1.3 GHz
Input	LVDS, Crystal, LVPECL, LVHSTL, HCSL
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output	LVPECL, LVDS
Package / Case	40-VFQFN Exposed Pad
PLL	Yes with Bypass
Ratio - Input:Output [custom]	2:2
Supplier Device Package	40-VFQFPN (6x6)
Type	Frequency Translator
Voltage - Supply [Max]	3.465 V
Voltage - Supply [Min]	2.375 V

8T49N205I Series

FemtoClock NG Universal FrequencyTranslator with Phase Build-Out

Part	Ratio - Input:Output [custom]	Frequency - Max [Max]	Divider/Multiplier	Number of Circuits	Differential - Input:Output [custom]	Differential - Input:Output [custom]	Supplier Device Package	Package / Case	Input	Output	Mounting Type	Type	PLL	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]
Renesas Electronics Corporation 8T49N205A-999NLGI	2:2	1.3 GHz	Yes/No	1			40-VFQFPN (6x6)	40-VFQFN Exposed Pad	Crystal HCSL LVDS LVHSTL LVPECL	LVDS LVPECL	Surface Mount	Frequency Translator	Yes with Bypass	2.375 V	3.465 V	85 °C	-40 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tray	1	$ 32.73
		10	$ 26.53
		25	$ 24.98
		80	$ 23.51
		230	$ 22.53

Description

General part information

8T49N205I Series

The 8T49N205I is a highly flexible FemtoClock®NG general-purpose, low phase noise frequency translator/synthesizer with Phase Build-Out (PBO) suitable for networking and communications applications. It can generate any output frequency in the 0.98MHz to 312.5MHz range and most output frequencies in the 312.5MHz to 1,300MHz range. A wide range of input reference clocks and a range of low-cost fundamental mode crystal frequencies may be used as the source for the output frequency.

This device provides two factory-programmed default power-up configurations burned into One-Time Programmable (OTP) memory. The configuration to be used is selected by the CONFIG pin. The two configurations are specified by the customer and are programmed by Renesas during the final test phase from an on-hand stock of blank devices. The two configurations may be completely independent of one another. One usage example might be to install the device on a line card with two optional daughter cards: an OC-12 option requiring a 622.08MHz LVDS clock translated from a 19.44MHz input and a Gigabit Ethernet option requiring a 125MHz LVPECL clock translated from the same 19.44MHz input reference.

To implement other configurations, these power-up default settings can be overwritten after power-up using the I2C interface and the device can be completely reconfigured. However, these settings would have to be rewritten next time the device powers up.

Documents

Technical documentation and resources