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NB2760A 데이터시트 PDF




ON Semiconductor에서 제조한 전자 부품 NB2760A은 전자 산업 및 응용 분야에서
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부품번호 NB2760A 기능
기능 Reduced EMI Clock Synthesizer
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NB2760A 데이터시트, 핀배열, 회로
www.DataSheet4U.com
NB2760A
Low Power, Reduced EMI
Clock Synthesizer
The NB2760A is a versatile spread spectrum frequency modulator
designed specifically for a wide range of clock frequencies. The
NB2760A reduces ElectroMagnetic Interference (EMI) at the clock
source, allowing system wide reduction of EMI of all clock dependent
signals. The NB2760A allows significant system cost savings by
reducing the number of circuit board layers, ferrite beads and
shielding that are traditionally required to pass EMI regulations.
The NB2760A uses the most efficient and optimized modulation
profile approved by the FCC and is implemented by using a
proprietary all digital method.
The NB2760A modulates the output of a single PLL in order to
“spread” the bandwidth of a synthesized clock, and more importantly,
decreases the peak amplitudes of its harmonics. This results in
significantly lower system EMI compared to the typical narrow band
signal produced by oscillators and most frequency generators.
Lowering EMI by increasing a signal’s bandwidth is called ‘spread
spectrum clock generation’.
The NB2760A is targeted towards all portable devices with very
low power requirements like MP3 players and digital still cameras.
Features
Generates an EMI Optimized Clocking Signal at the Output
Integrated Loop Filter Components
Operates with a 3.3 V / 2.5 V Supply
Operating Current less than 4.0 mA
Low Power CMOS Design
Input Frequency Range: 6.0 MHz to 12 MHz for 2.5 V
Input Frequency Range: 6.0 MHz to 13 MHz for 3.3 V
Generates a 1X Low EMI Spread Spectrum clock of the Input
Frequency
Frequency Deviation "0.65% @ 8 MHz
Available in TSOP6 Package (TSOT236)
PbFree Package is Available
http://onsemi.com
MARKING
DIAGRAM*
6
1
TSOP6
(TSOT236)
SN SUFFIX
CASE 318G
E03AYWG
G
1
E03 = Specific Device Code
A =Assembly Location
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
sApplication Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
December, 2006 Rev. 3
1
Publication Order Number:
NB2760A/D




NB2760A pdf, 반도체, 판매, 대치품
NB2760A
Table 4. DC ELECTRICAL CHARACTERISTICS FOR 2.5 V SUPPLY (Test Conditions: All parameters are measured at room
temperature 25°C)
Symbol
Description
Min Typ Max Unit
VIL Input LOW Voltage
GND 0.3
0.8 V
VIH Input HIGH Voltage
2.0
VDD + 0.3
V
IIL Input LOW Current
35 mA
IIH Input HIGH Current
35 mA
IXOL XOUT Output LOW Current (@ 0.5 V, VDD = 2.5 V)
3.0 mA
IXOH
XOUT Output HIGH Current (@ 1.8 V, VDD = 2.5 V)
3.0 mA
VOL Output LOW Voltage (VDD = 2.5 V, IOL = 8.0 mA)
0.6 V
VOH Output HIGH Voltage (VDD = 2.5 V, IOH = 8.0 mA)
1.8
V
IDD Static Supply Current (Note 1)
10 mA
ICC Dynamic Supply Current (2.5 V, 8 MHz, and No Load)
2.5 mA
VDD Operating Voltage
2.375 2.5 2.625 V
tON Powerup Time (first locked cycle after powerup) (Note 2)
5.0 mS
ZOUT
Clock Output Impedance
50 W
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
1. XIN/CLKIN pin and PD are pulled low.
2. VDD and XIN/CLKIN input are stable, PD pin is made high from low.
Table 5. AC ELECTRICAL CHARACTERISTICS FOR 2.5 V SUPPLY
Symbol
Description
Min Typ Max Unit
CLKIN
Input Frequency
6.0 12 MHz
ModOUT
Output Frequency
6.0 12 MHz
fd Frequency Deviation
Input Frequency = 6.0 MHz
Input Frequency = 12 MHz
±0.96
±0.45
%
tLH (Note 3) Output Rise Time (measured at 0.7 V to 1.7 V)
0.4 1.2 1.4 ns
tHL (Note 3) Output Fall Time (measured at 1.7 V to 0.7 V)
0.4 0.9 1.1 ns
tJC Jitter (CycletoCycle)
200 ps
tD Output Duty Cycle
45 50 55 %
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
3. tLH and tHL are measured at capacitive load of 15 pF.
http://onsemi.com
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NB2760A 전자부품, 판매, 대치품
NB2760A
ORDERING INFORMATION
Device
Marking
Temperature Range
Package
Shipping
Availability
NB2760ASNR2
E03 0°C 70°C
TSOP6
2500 Tape & Reel
Now
(TSOT236)
NB2760ASNR2G
E03 0°C 70°C
TSOP6J
2500 Tape & Reel
Contact
(TSOT236)
Sales
(PbFree)
Representative
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
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관련 데이터시트

부품번호상세설명 및 기능제조사
NB2760A

Reduced EMI Clock Synthesizer

ON Semiconductor
ON Semiconductor

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