LTC6948IUFD-2#PBF

Obsolete

Analog Devices Inc./Maxim Integrated

ULTRALOW NOISE 0.37GHZ TO 6.39GHZ FRACTIONAL-N SYNTHESIZER WITH INTEGRATED VCO

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LTC6948IUFD-2#PBF

Obsolete

Analog Devices Inc./Maxim Integrated

ULTRALOW NOISE 0.37GHZ TO 6.39GHZ FRACTIONAL-N SYNTHESIZER WITH INTEGRATED VCO

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC6948 Series

The LTC6948 is a high performance, low noise, 6.39GHz phase-locked loop (PLL) with a fully integrated VCO, including a reference divider, phase-frequency detector (PFD), ultralow noise charge pump, fractional feedback divider, and VCO output divider.The fractional divider uses an advanced, 4th order ΔΣ modulator which provides exceptionally low spurious levels. This allows wide loop bandwidths, producing extremely low integrated phase noise values.The programmable VCO output divider, with a range of 1 through 6, extends the output frequency range.ApplicationsWireless Basestations (LTE, WiMAX, W-CDMA, PCS)Microwave Data LinksMilitary and Secure RadioTest and Measurement

Technical Specifications

Parameters and characteristics for this part

Specification	LTC6948IUFD-2#PBF

Differential Input	Yes
Differential Output	Yes
Divider	Yes
Frequency - Max	4.91 GHz
Input	Clock
Input Ratio	1
Mounting Type	Surface Mount
Multiplier	No
Number of Circuits	1
Operating Temperature (Max)	105 °C
Operating Temperature (Min)	-40 °C
Output	Clock
Output Ratio	1
Package / Case	28-WFQFN Exposed Pad
Package Length	4 mm
Package Name	28-QFN
Package Width	5 mm
PLL	Yes
Type	Clock/Frequency Synthesizer (RF/IF), Fractional N
Voltage - Supply (Maximum)	5.25 V
Voltage - Supply (Minimum)	3.15 V

LTC6948 Series

Part	Utilized IC / Part	Type	Function	Primary Attributes	Contents	Secondary Attributes	Multiplier	Divider	Package / Case	Operating Temperature (Min)	Operating Temperature (Max)	Package Width	Package Name	Package Length	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Output	Output Ratio	Input Ratio	Input	PLL	Mounting Type	Number of Circuits	Frequency - Max	Differential Input	Differential Output
Analog Devices Inc./Maxim Integrated DC1959B-D	LTC6948-4	Timing	Frequency Synthesizer	Single Fractional-N PLL with VCO	Board	SMA Connectors
Analog Devices Inc./Maxim Integrated LTC6948IUFD-4#TRPBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	6.39 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-3#PBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	5.79 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-2		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	4.91 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-1#TRPBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	3.74 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-1#PBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	3.74 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-3#TRPBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	5.79 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-2#TRPBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	4.91 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-2#PBF		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	4.91 GHz	Yes	Yes
Analog Devices Inc./Maxim Integrated LTC6948IUFD-1		Clock/Frequency Synthesizer (RF/IF) Fractional N					No	Yes	28-WFQFN Exposed Pad	-40 °C	105 °C	5 mm	28-QFN	4 mm	3.15 V	5.25 V	Clock	1	1	Clock	Yes	Surface Mount	1	3.74 GHz	Yes	Yes

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC6948IUFD-2#PBF | Datasheet

R565 Reliability Data