NB2780A
NB2780A is Reduced EMI Clock Synthesizer manufactured by onsemi.
Features http://onsemi. MARKING DIAGRAM-
6 1 TSOP- 6 (TSOT- 23- 6) SN SUFFIX CASE 318G
E07AYWG G 1
E07 A Y W G
= Specific Device Code = Assembly Location = Year = Work Week = Pb- Free Package
(Note: Microdot may be in either location)
- For additional marking information, refer to Application Note AND8002/D.
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Generates an EMI Optimized Clocking Signal at the Output Integrated Loop Filter ponents Operates with a 3.3 V / 2.5 V Supply Operating Current less than 5.0 m A Low Power CMOS Design Input Frequency Range: 30 MHz to 50 MHz for Both Voltages Generates a 1X Low EMI Spread Spectrum clock of the Input Frequency Frequency Deviation "0.75% (TYP) @ 46 MHz Available in TSOP- 6 Package (TSOT- 23- 6) Pb- Free Package is Available
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet.
© Semiconductor ponents Industries, LLC, 2005
December, 2006
- Rev. 3
Publication Order Number: NB2780A/D
PD VDD
XIN/CLKIN XOUT Crystal Oscillator Frequency Divider Feedback Divider
Modulation
Phase Detector
Loop Filter
Output Divider Mod OUT
Figure 1. Block Diagram Table 1. KEY SPECIFICATIONS
Description
Supply Voltages Frequency Range Cycle- to- Cycle Jitter Output Duty Cycle Modulation Rate Equation Frequency Deviation
Specification VDD = 3.3 V / 2.5 V 30 MHz < CLKIN < 50 MHz 200 ps (maximum) 45/55% (worst case) FIN/1280 "0.75% (TYP) @ 46 MHz
PD XOUT XIN/CLKIN
1 2 3
VSS Mod OUT VDD
5 4
Figure 2. Pin Configuration Table 2. PIN DESCRIPTION
Pin # 1 2 3 4 5 6 Pin Name PD XOUT XIN/CLKIN VDD Mod OUT VSS Type I O I P O P...