mpc9892 ETC-unknow, mpc9892 Datasheet

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mpc9892

Manufacturer Part Number
mpc9892
Description
Intelligent Dynamic Clock Switch
Manufacturer
ETC-unknow
Datasheet
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Product Preview
Intelligent Dynamic Clock
Switch (IDCS) PLL Clock
Driver
clock tree designs. The device receives two differential LVPECL clock
signals from which it generates 5 new differential LVPECL clock outputs.
Two of the output pairs regenerate the input signals frequency and phase
while the other three pairs generate 4x, phase aligned clock outputs.
External PLL feedback is used to also provide zero delay buffer
performance.
Features:
Functional Description
of a failure (CLK stuck HIGH or LOW for at least 1 period), the INP_BAD for that CLK will be latched (H). If that CLK is the primary
clock, the IDCS will switch to the good secondary clock and phase/frequency alignment will occur with minimal output phase
disturbance. The typical phase bump caused by a failed clock is eliminated. (See Application Information section).
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
Fully Integrated PLL
Intelligent Dynamic Clock Switch
LVPECL Clock Outputs
LVCMOS Control I/O
3.3V Operation
32–Lead LQFP Packaging
SiGe technology supports near-zero output skew
The MPC9892 is a PLL clock driver designed specifically for redundant
The MPC9892 Intelligent Dynamic Clock Switch (IDCS) circuit continuously monitors both input CLK signals. Upon detection
Motorola, Inc. 2002
Man_Override
Clk_Selected
Alarm_Reset
Inp1bad
Inp0bad
PLL_En
Sel_Clk
Ext_FB
Ext_FB
CLK0
CLK0
CLK1
CLK1
Dynamic Switch
MR
Logic
OR
1
Figure 1. Block Diagram
800 – 1600 MHz
PLL
16
4
32–LEAD LQFP PACKAGE
MPC9892
Qb0
Qb0
Qb1
Qb1
Qb2
Qb2
Qa0
Qa0
Qa1
Qa1
CASE 873A
FA SUFFIX
Order Number: MPC9892/D
Rev 0, 12/2002

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mpc9892 Summary of contents

Page 1

... SiGe technology supports near-zero output skew Functional Description The MPC9892 Intelligent Dynamic Clock Switch (IDCS) circuit continuously monitors both input CLK signals. Upon detection of a failure (CLK stuck HIGH or LOW for at least 1 period), the INP_BAD for that CLK will be latched (H). If that CLK is the primary clock, the IDCS will switch to the good secondary clock and phase/frequency alignment will occur with minimal output phase disturbance ...

Page 2

... Digital power supply GNDA Power Supply PLL ground GND Power Supply Digital ground MOTOROLA MPC9892 Figure 2. 32–Lead Pinout (Top View) Pin Definition 2 VCC Inp0bad Inp1bad Clk_Selected GND ...

Page 3

... TBD V TBD V TBD V 200 mA 4.0 pF 83.1 86.0 C/W 73.3 75.4 C/W 68.9 70.9 C/W 63.8 65.3 C/W 57.4 59.6 C/W 59.0 60.6 C/W 54.4 55.7 C/W 52.5 53.8 C/W 50.4 51.5 C/W 47.8 48.8 C/W 23.0 26.3 C/W 110 C 3 MPC9892 Unit Condition Condition Inputs Natural convection 100 ft/min 200 ft/min 400 ft/min 800 ft/min Natural convection 100 ft/min 200 ft/min 400 ft/min 800 ft/min MIL-SPEC 883E Method 1012.1 MOTOROLA ...

Page 4

... MPC9892 DC CHARACTERISTICS ( 3.3V Symbol Characteristics LVCMOS control inputs (OE, FSEL0, FSEL1, MR Input voltage low V IH Input voltage high Input Current LVPECL clock inputs (CLK, CLK differential input voltage Differential cross point voltage e V CMR V IH Input high voltage ...

Page 5

... The resistor will have minimal impact on the rise and fall times of the input signals. Acquiring Frequency Lock 1. While the MPC9892 is receiving a valid CLK signal, assert Man_Override HIGH. 2. The PLL will phase and frequency lock within the specified lock time. ...

Page 6

... MPC9892 –T– DETAIL –Z– –AB– SEATING –AC– PLANE 0.10 (0.004 DETAIL AD MOTOROLA OUTLINE DIMENSIONS FA SUFFIX PLASTIC LQFP PACKAGE CASE 873A–02 ISSUE A 4X 0.20 (0.008) AB T– –U– ...

Page 7

... TIMING SOLUTIONS NOTES 7 MPC9892 MOTOROLA ...

Page 8

... JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1, Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T. Hong Kong. 852–26668334 Technical Information Center: 1–800–521–6274 HOME PAGE: http://www.motorola.com/semiconductors/ MOTOROLA 8 MPC9892/D TIMING SOLUTIONS ...

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