nbc12429 ON Semiconductor, nbc12429 Datasheet

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nbc12429

Manufacturer Part Number
nbc12429
Description
3.3v/5v Programmable Pll Synthesized Clock Generator
Manufacturer
ON Semiconductor
Datasheet

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NBC12429, NBC12429A
3.3V/5V Programmable PLL
Synthesized Clock
Generator
25 MHz to 400 MHz
Description
Phase-Lock-Loop (PLL) based synthesized clock sources. The VCO
will operate over a frequency range of 200 MHz to 400 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
125 kHz, 250 kHz, 500 kHz, or 1.0 MHz can be achieved using a
16 MHz crystal, depending on the output dividers. The PLL loop filter
is fully integrated and does not require any external components.
Features
© Semiconductor Components Industries, LLC, 2007
May, 2007 - Rev. 11
The NBC12429 and NBC12429A are general purpose,
During Powerup
MPC9229
Best-in-Class Output Jitter Performance, ±20 ps Peak-to-Peak
25 MHz to 400 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 MC12429 and
0°C to 70°C Ambient Operating Temperature (NBC12429)
-40 °C to 85°C Ambient Operating Temperature (NBC12429A)
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 17 of this data sheet.
x
A
WL, L
YY, Y
WW, W = Work Week
G or G
(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
32
= Blank or A
= Assembly Location
= Wafer Lot
= Year
= Pb-Free Package
http://onsemi.com
Publication Order Number:
1
NBC12429xG
AWLYYWWG
DIAGRAMS
AWLYYWW
AWLYYWWG
MARKING
NBC12
NBC12
429x
429x
NBC12429/D
1 28
G

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nbc12429 Summary of contents

Page 1

... Pin and Function Compatible with Motorola MC12429 and MPC9229 • 0°C to 70°C Ambient Operating Temperature (NBC12429) • -40 °C to 85°C Ambient Operating Temperature (NBC12429A) • Pb-Free Packages are Available © Semiconductor Components Industries, LLC, 2007 May, 2007 - Rev. 11 http://onsemi.com ...

Page 2

... XTAL1 10-20 MHz OSC 5 XTAL2 S_LOAD 7 P_LOAD 27 S_DATA 26 S_CLOCK Table 1. Output Division N[1:0] Output Division NBC12429, NBC12429A +3 PLL_V REF PHASE DETECTOR VCO 9-BIT COUNTER ( 200-400 MHz LATCH LATCH BIT SR 9- BIT 17, 18 ...

Page 3

... XTAL1 S_CLOCK 1 S_DATA 2 S_LOAD 3 PLL_V 4 CC PLL_V N/C N/C 7 XTAL1 Figure 3. LQFP-32 (Top View) NBC12429, NBC12429A Figure 2. PLCC-28 (Top View) 32 S_CLOCK N/C 24 S_DATA 2 N[1] 23 S_LOAD ...

Page 4

... The following gives a brief description of the functionality of the NBC12429 and NBC12429A 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 terminated 50 W transmission lines on the incident edge. ...

Page 5

... Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. NBC12429, NBC12429A Characteristics Human Body Model ...

Page 6

... F /F output levels will vary 1:1 with V OUT OUT outputs are terminated through resistor OUT OUT NBC12429, NBC12429A = 3.3 V ± 5 0°C to 70°C (NBC12429 Characteristic TEST TEST F OUT F OUT F OUT F ...

Page 7

... F /F OUT OUT 7. 10 MHz is the maximum frequency to load the feedback divide registers. S_CLOCK can be switched at higher frequencies when used as a test clock in TEST_MODE 6. NBC12429, NBC12429A = 3.125 0°C to 70°C (NBC12429 Condition S_CLOCK (Note 7) Xtal Oscillator VCO (Internal) F OUT 25 MHz < ...

Page 8

... The output driver is driven differentially from the output divider and is capable of driving a pair of transmission lines terminated into 2.0 V. The positive reference CC NBC12429, NBC12429A = 3.125 0°C to 70°C (NBC12429 Condition S_DATA to S_CLOCK S_CLOCK to S_LOAD P_LOAD S_DATA to S_CLOCK ...

Page 9

... Programming the NBC12429 and NBC12429A 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: FOUT + (F XTAL B 16) ...

Page 10

... M[8:0] and N[1:0] are normally specified once at powerup through the parallel interface, and then possibly NBC12429, NBC12429A again through the serial interface. This approach allows the application to come up at one frequency and then change or fine-tune the clock as the ability to control the serial interface becomes available ...

Page 11

... NBC12429, NBC12429A Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á ...

Page 12

... SHIFT REG T0 14- BIT T1 T2 SLOAD • T2=T1=1, T0=0: Test Mode • SCLOCK is selected, MCNT is on TEST output, SCLOCK PLOAD acts as reset for test pin latch. When latch reset, T2 data is shifted out TEST pin. NBC12429, NBC12429A M[8:0] N[1:0] P_LOAD Figure 5 ...

Page 13

... PLL_V NBC12429 and NBC12429A. Figure 8 illustrates a typical power supply filter scheme. The NBC12429 and NBC12429A are most susceptible to noise with spectral content in the 1 kHz to 1 MHz range. Therefore, the filter should be designed to target this range. ...

Page 14

... PCB layout techniques will produce effective capacitor resonances at frequencies adequate to supply the instantaneous switching current for the NBC12429 and NBC12429A outputs imperative that low inductance chip capacitors are used equally important that the board layout not introduce any of the inductance saved by using the leadless capacitors ...

Page 15

... PP 37 100 150 200 300 400 Period ( RMS 37 100 150 200 300 400 NBC12429, NBC12429A 3.3 V, 25°C with 16 MHz Crystal Input at Selected M and N Values 200 200 200 200 300 300 106 91 105 ...

Page 16

... NBC12429, NBC12429A S_DATA S_CLOCK t SETUP Figure 11. Setup and Hold S_DATA t S_LOAD SETUP Figure 12. Setup and Hold M[8:0] N[1:0] P_ LOAD t SETUP Figure 13. Setup and Hold F OUT F OUT Pulse Width Figure 14. Output Duty Cycle t HOLD t HOLD t HOLD t PERIOD http://onsemi.com 16 tpw DCO + tPERIOD ...

Page 17

... NBC12429AFA NBC12429AFAG NBC12429AFAR2 NBC12429AFAR2G NBC12429AFN NBC12429AFNG NBC12429AFNR2 NBC12429AFNR2G NBC12429AMNG NBC12429AMNR4G †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. NBC12429, NBC12429A = OUT OUT ...

Page 18

... NBC12429, NBC12429A 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 ECL AN1672/D - The ECL Translator Guide AND8001/D - Odd Number Counters Design ...

Page 19

... DIMENSION H DOES NOT INCLUDE DAMBAR PROTRUSION OR INTRUSION. THE DAMBAR PROTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE GREATER THAN 0.037 (0.940). THE DAMBAR INTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE SMALLER THAN 0.025 (0.635). NBC12429, NBC12429A PACKAGE DIMENSIONS PLCC-28 FN SUFFIX PLASTIC PLCC PACKAGE CASE 776-02 ISSUE E ...

Page 20

... DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. DAMBAR PROTRUSION SHALL NOT CAUSE THE D DIMENSION TO EXCEED 0.520 (0.020). 8. MINIMUM SOLDER PLATE THICKNESS SHALL BE 0.0076 (0.0003). 9. EXACT SHAPE OF EACH CORNER MAY VARY FROM DEPICTION. NBC12429, NBC12429A PACKAGE DIMENSIONS 32 LEAD LQFP CASE 873A-02 ISSUE C 4X 0.20 (0.008) AB ...

Page 21

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT:  Literature Distribution Center for ON Semiconductor  P.O. Box 5163, Denver, Colorado 80217 USA  Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada  Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada  Email: orderlit@onsemi.com NBC12429, NBC12429A PACKAGE DIMENSIONS QFN32 5*5*1 0.5 P CASE 488AM-01 ISSUE ...

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