RF Components - Frequency Control SC3048B 444 MHz SAW Clock - Diff Sine Wave - RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.

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RF Components
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SC3048B

444 MHz Clock - Diff Sine Wave

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� Quartz SAW Frequency Stability
� Fundamental Fixed Frequency
� Excellent Jitter and Symmetry
� Rugged, Miniature, Surface-Mount Case
� Low-Voltage Power Supply (3.3 VDC)
� Directive 2002/95/EC (ROHS) Compliant by June, 2006
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 02/28/06

download RoHS Statement

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Features
Specs
AppNotes
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This digital clock is designed for use in critical timing applications. Fundamental-mode oscillation is made possible by surface-acoustic-wave (SAW) technology. The design results in low jitter, compact size, and low power consumption. Differential outputs provide a sine wave that is made to drive 50 Ohm loads.


Electrical Characteristics

Characteristic	Symbol	Minimum	Typical	Maximum	Units
Output Frequency Absolute Frequency	fO	443.911		444.089	MHz
Tolerance from 444.000 MHz	DfO			�200	ppm
Q and Q Output Voltage into 50Ohm (VSWR ? 1.2)	VO	0.5		4.5	dBm
Operating Load VSWR				2:1	VP-P
Symmetry		49		51	%
Harmonic Spurious				-30	dBc
Nonharmonic Spurious				-60	dBc
Q and Q Period Jitter No Noise on VCC			15	30	psP-P
200 mVP-P from 1 MHz to � fO on				35	psP-P
Output (Disabled) Amplitude into 50 Ohm				75	mVP-P
Output DC Resistance (between Q & Q)		100			kOhm
ENABLE (Terminal 14) Input HIGH Voltage	VIH	VCC-0.1	VCC	VCC+0.1	V
Input LOW Voltage	VIL	0.0		0.20	V
Input HIGH Current	IIH		3	5	mA
Input LOW Current	IIL			-1	mA
Propagation Delay	tPD			1	ms
DC Power Supply Operating Voltage	VCC	+3.13	+3.30	+3.47	VDC
Operating Current	ICC		18	40	mA
Operating Ambient Temperature	TA	0		+70	�C