NBC12430_06 ONSEMI [ON Semiconductor], NBC12430_06 Datasheet

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NBC12430_06

Manufacturer Part Number
NBC12430_06
Description
3.3V/5V Programmable PLL Synthesized Clock Generator
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
NBC12430, NBC12430A
3.3V/5V Programmable PLL
Synthesized Clock
Generator
50 MHz to 800 MHz
synthesized clock sources. The VCO will operate over a frequency
range of 400 MHz to 800 MHz. The VCO frequency is sent to the
N−output divider, where it can be configured to provide division ratios
of 1, 2, 4, or 8. The VCO and output frequency can be programmed
using the parallel or serial interfaces to the configuration logic. Output
frequency steps of 250 KHz, 500 KHz, 1.0 MHz, 2.0 MHz can be
achieved using a 16 MHz crystal, depending on the output dividers
settings. The PLL loop filter is fully integrated and does not require
any external components.
Features
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 9
The NBC12430 and NBC12430A are general purpose, PLL based
During Powerup
MPC9230
Best−in−Class Output Jitter Performance, ±20 ps Peak−to−Peak
50 MHz to 800 MHz Programmable Differential PECL Outputs
Fully Integrated Phase−Lock−Loop with Internal Loop Filter
Parallel Interface for Programming Counter and Output Dividers
Minimal Frequency Overshoot
Serial 3−Wire Programming Interface
Crystal Oscillator Interface
Operating Range: V
CMOS and TTL Compatible Control Inputs
Pin and Function Compatible with Motorola MC12430 and
0°C to 70°C Ambient Operating Temperature (NBC12430)
−40°C to 85°C Ambient Operating Temperature (NBC12430A)
Pb−Free Packages are Available
CC
= 3.135 V to 5.25 V
1
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
(Note: Microdot may be in either location)
CASE 488AM
CASE 873A
FA SUFFIX
FN SUFFIX
MN SUFFIX
CASE 776
LQFP−32
PLCC−28
QFN32
1
ORDERING INFORMATION
x
A
WL, L
YY, Y
WW, W = Work Week
G or G
32
http://onsemi.com
= Blank or A
= Assembly Location
= Wafer Lot
= Year
= Pb−Free Package
Publication Order Number:
1
NBC12430xG
DIAGRAMS
AWLYYWWG
AWLYYWW
MARKING
AWLYYWWG
NBC12
NBC12
430x
NBC12430/D
430x
1 28
G

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NBC12430_06 Summary of contents

Page 1

NBC12430, NBC12430A 3.3V/5V Programmable PLL Synthesized Clock Generator 50 MHz to 800 MHz The NBC12430 and NBC12430A are general purpose, PLL based synthesized clock sources. The VCO will operate over a frequency range of 400 MHz to 800 MHz. The ...

Page 2

MHz F with 16 MHz Crystal XTAL_SEL 2 FREF_EXT 9−BIT XTAL1 COUNTER 10−20MHz OSC 5 XTAL2 S_LOAD 7 P_LOAD 27 S_DATA 26 S_CLOCK Table 1. Output Division N [1:0] Output ...

Page 3

S_CLOCK S_DATA S_LOAD PLL_V CC FREF_EXT XTAL_SEL XTAL1 S_CLOCK 1 S_DATA 2 S_LOAD 3 PLL_V 4 CC PLL_V 5 CC FREF_EXT 6 XTAL_SEL 7 XTAL1 Figure 3. 32−Lead QFN ...

Page 4

The following gives a brief description of the functionality of the NBC12430 and NBC12430A Inputs and Outputs. Unless explicitly stated, all inputs are CMOS/TTL compatible with either pullup or pulldown resistors. The PECL outputs are capable of driving two series ...

Page 5

ATTRIBUTES Internal Input Pulldown Resistor Internal Input Pullup Resistor ESD Protection Moisture Sensitivity (Note 1) Flammability Rating Transistor Count Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test 1. For additional information, see Application Note AND8003/D. MAXIMUM RATINGS Symbol Parameter ...

Page 6

DC CHARACTERISTICS (V = 3.3 V ± 5 Symbol V Input HIGH Voltage IH LVCMOS/ LVTTL V Input LOW Voltage IL LVCMOS/ LVTTL I Input Current IN V Output HIGH Voltage OH PECL V Output LOW Voltage OL ...

Page 7

AC CHARACTERISTICS (V = 3.135 V to 5.25 V ± 5 Symbol Characteristic F Maximum Input Frequency MAXI F Maximum Output Frequency MAXO t Maximum PLL Lock Time LOCK t Period Jitter (RMS) jitter(pd) t Cycle−to−Cycle Jitter (Peak−to−Peak) ...

Page 8

The internal oscillator uses the external quartz crystal as the basis of its frequency reference. The output of the reference oscillator is divided by 16 before being sent to the phase detector. With a 16 MHz crystal, this provides a ...

Page 9

Programming the NBC12430 and NBC12430A is accomplished by properly configuring the internal dividers to produce the desired frequency at the outputs. The output frequency can by represented by this formula: F OUT + ((F XTAL or F REF_EXT ) B ...

Page 10

Table 5. Frequency Operating Range Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á VCO Frequency (MHz) Range for a Crystal Frequency (MHz) of: Á ...

Page 11

Most of the signals available on the TEST output pin are useful only for performance verification of the device itself. However, the PLL bypass mode may be of interest at the board level for functional debug. When T[2:0] is set ...

Page 12

Using the On−Board Crystal Oscillator The NBC12430 and NBC12430A feature a fully integrated on−board crystal oscillator to minimize system implementation costs. The oscillator is a series resonant, multivibrator type design as opposed to the more common parallel resonant oscillator design. ...

Page 13

A higher level of attenuation can be achieved by replacing the resistor with an appropriate valued inductor. Figure 8 shows a 1000 mH choke. This value choke will show a significant impedance at 10 KHz frequencies and above. Because of ...

Page 14

There are different ways to measure jitter and often they are confused with one another. The typical method of measuring jitter is to look at the timing signal with an oscilloscope and observe the variations in period−to−period or cycle−to−cycle. If ...

Page 15

S_DATA S_CLOCK t SETUP Figure 14. Setup and Hold S_DATA t S_LOAD SETUP Figure 15. Setup and Hold M[8:0] N[1:0] P_ LOAD t SETUP Figure 16. Setup and Hold F OUT F OUT Pulse Width Figure 17. Output Duty Cycle ...

Page 16

Driver Device Figure 18. Typical Termination for Output Driver and Device Evaluation (See Application Note AND8020 − Termination of ECL Logic Devices.) ORDERING INFORMATION Device NBC12430FA NBC12430FAG NBC12430FAR2 NBC12430FAR2G NBC12430FN NBC12430FNG NBC12430FNR2 NBC12430FNR2G NBC12430AFA NBC12430AFAG NBC12430AFAR2 NBC12430AFAR2G NBC12430AFN NBC12430AFNG NBC12430AFNR2 ...

Page 17

Resource Reference of Application Notes AN1405/D − ECL Clock Distribution Techniques AN1406/D − Designing with PECL (ECL at +5.0 V) AN1503/D − ECLinPSt I/O SPiCE Modeling Kit AN1504/D − Metastability and the ECLinPS Family AN1568/D − Interfacing Between LVDS and ...

Page 18

0.010 (0.250) T L− NOTES: 1. DATUMS −L−, −M−, AND −N− DETERMINED WHERE TOP OF LEAD SHOULDER EXITS PLASTIC BODY AT ...

Page 19

−T− DETAIL −Z− −AB− SEATING −AC− PLANE 0.10 (0.004) AC NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DATUM PLANE ...

Page 20

D É É PIN ONE LOCATION É É 0.15 C TOP VIEW 2 X 0. 0.08 C SIDE VIEW 0. ...

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