MPC93R51ACR2 IDT, Integrated Device Technology Inc, MPC93R51ACR2 Datasheet

MPC93R51ACR2

Manufacturer Part Number

MPC93R51ACR2

Description

IC PLL CLK DRIVER LV 32-LQFP

Manufacturer

IDT, Integrated Device Technology Inc

Type

PLL Clock Generatorr

Datasheet

1.MPC93R51ACR2.pdf (12 pages)

Specifications of MPC93R51ACR2

Pll

Yes with Bypass

Input

LVCMOS, LVPECL

Output

LVCMOS

Number Of Circuits

Ratio - Input:output

2:9

Differential - Input:output

Yes/No

Frequency - Max

240MHz

Divider/multiplier

Yes/Yes

Voltage - Supply

3.135 V ~ 3.465 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

32-LQFP

Frequency-max

240MHz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

MPC93R51ACR2

Manufacturer:

IDT, Integrated Device Technology Inc

Quantity:

10 000

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IDT™ Low Voltage PLL Clock Driver

Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc

Low Voltage PLL Clock Driver

Freescale Semiconductor

Technical Data

This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

Low Voltage PLL Clock Driver

high performance clock distribution systems. With output frequencies of up to

240 MHz and a maximum output skew of 150 ps, the MPC93R51 is an ideal

solution for the most demanding clock tree designs. The device offers 9 low skew

clock outputs, each is configurable to support the clocking needs of the various

high-performance microprocessors including the PowerQuicc II integrated

communication microprocessor. The devices employ a fully differential PLL

design to minimize cycle-to-cycle and long-term jitter.

Features

•

Functional Description

operation of the MPC93R51 requires a connection of one of the device outputs to the EXT_FB input to close the PLL feedback

path. The reference clock frequency and the output divider for the feedback path determine the VCO frequency. Both must be

selected to match the VCO frequency range. With available output dividers of divide-by-4 and divide-by-8, the internal VCO of

the MPC93R51 is running at either 4x or 8x of the reference clock frequency. The frequency of the QA, QB, QC and QD outputs

is either the one half, one fourth or one eighth of the selected VCO frequency and can be configured for each output bank using

the FSELA, FSELB, FSELC and FSELD pins, respectively. The available output to input frequency ratios are 4:1, 2:1, 1:1, 1:2

and 1:4. The REF_SEL pin selects the differential LVPECL (PCLK and PCLK) or the LVCMOS compatible reference input

(TCLK). The MPC93R51 also provides a static test mode when the PLL enable pin (PLL_EN) is pulled to logic low state. In test

mode, the selected input reference clock is routed directly to the output dividers bypassing the PLL. The test mode is intended

for system diagnostics, test and debug purposes. This test mode is fully static and the minimum clock frequency specification

does not apply. The outputs can be disabled by deasserting the OE pin (logic high state). In PLL mode, deasserting OE causes

the PLL to loose lock due to no feedback signal presence at EXT_FB. Asserting OE will enable the outputs and close the phase

locked loop, also enabling the PLL to recover to normal operation. The MPC93R51 is 3.3 V compatible and requires no external

loop filter components. All inputs except PCLK and PCLK accept LVCMOS signals while the outputs provide LVCMOS compatible

levels with the capability to drive terminated 50 Ω transmission lines. For series terminated transmission lines, each of the

MPC93R51 outputs can drive one or two traces giving the devices an effective fanout of 1:18. The device is packaged in a

7x7 mm

Application Information

essentially zero propagation delay to multiple components on the board. In zero-delay buffer mode, the PLL minimizes phase

offset between the outputs and the reference signal.

Freescale Confidential Proprietary, NDA Required / Preliminary

The MPC93R51 is a 3.3 V compatible, PLL based clock generator targeted for

The MPC93R51 utilizes PLL technology to frequency and phase lock its outputs onto an input reference clock. Normal

The fully integrated PLL of the MPC93R51 allows the low skew outputs to lock onto a clock input and distribute it with

25–240 MHz output frequency range

Fully integrated PLL

Compatible to various microprocessors such as PowerQuicc II

Supports networking, telecommunications and computer applications

Configurable outputs: divide-by-2, 4 and 8 of VCO frequency

LVPECL and LVCMOS compatible inputs

External feedback enables zero-delay configurations

Output enable/disable and static test mode (PLL enable/disable)

Low skew characteristics: maximum 150 ps output-to-output

Cycle-to-cycle jitter max. 22 ps RMS

32-lead LQFP package

32-lead Pb-free Package Available

Ambient Temperature Range 0°C to +70°C

Pin & Function Compatible with the MPC951

9 outputs LVCMOS PLL clock generator

32-lead LQFP package.

PLL CLOCK GENERATOR

32-LEAD LQFP PACKAGE

LOW VOLTAGE 3.3 V

Pb-FREE PACKAGE

CASE 873A-03

FA SUFFIX

AC SUFFIX

DATA SHEET

Rev. 4, 1/2005

MPC93R51

Related parts for MPC93R51ACR2

MPC93R51ACR2 Summary of contents

Page 1

Freescale Semiconductor Technical Data Low Voltage PLL Clock Driver Low Voltage PLL Clock Driver The MPC93R51 is a 3.3 V compatible, PLL based clock generator targeted for high performance clock distribution systems. With output frequencies 240 MHz ...

Page 2

MPC93R51 Low Voltage PLL Clock Driver (Pullup) PCLK PCLK (Pulldown) TCLK (Pulldown) REF_SEL (Pulldown) EXT_FB (Pullup) PLL_EN (Pulldown) FSELA (Pulldown) FSELB (Pulldown) FSELC (Pulldown) FSELD (Pulldown) OE The MPC93R51 requires an external RC filter for the analog power supply pin ...

Page 3

MPC93R51 Low Voltage PLL Clock Driver Table 1. Pin Description Number Name PCLK, PCLK Input TCLK Input EXT_FB Input REF_SEL Input FSELA Input FSELB Input FSELC Input FSELD Input OE Input QA Output QB Output QC0, QC1 Output QD0 – ...

Page 4

MPC93R51 Low Voltage PLL Clock Driver Table 4. General Specifications Symbol Characteristics V Output Termination Voltage TT MM ESD (Machine Model) HBM ESD (Human Body Model) LU Latch-Up C Power Dissipation Capacitance Table 5. DC Characteristics (V ...

Page 5

MPC93R51 Low Voltage PLL Clock Driver Table 6. AC Characteristics (V CC Symbol Characteristics (2) f Input Frequency ref f VCO Frequency VCO f Maximum Output Frequency MAX f Reference Input Duty Cycle refDC V Peak-to-Peak Input Voltage PP (3) ...

Page 6

MPC93R51 Low Voltage PLL Clock Driver Programming the MPC93R51 The MPC93R51 clock driver outputs can be configured into several divider modes. In addition, the external feedback of the device allows for flexibility in establishing various input to output frequency relationships. ...

Page 7

MPC93R51 Low Voltage PLL Clock Driver Calculation of Part-to-Part Skew The MPC93R51 zero delay buffer supports applications where critical clock signal timing can be maintained across several devices. If the reference clock inputs (TCLK or PCLK) of two or more ...

Page 8

MPC93R51 Low Voltage PLL Clock Driver 0.1 µ 0.1 µF Figure 6. V Power Supply Filter CCA As the noise frequency crosses the series resonant point of an individual capacitor, its overall impedance begins ...

Page 9

MPC93R51 Low Voltage PLL Clock Driver 3.0 OutA 2 3.8956 2.0 In 1.5 1.0 0 TIME (ns) Figure 8. Single versus Dual Waveforms Pulse Generator Z = 50Ω Figure 10. TCLK ...

Page 10

MPC93R51 Low Voltage PLL Clock Driver PCLK PCLK Ext_FB t (∅) Figure 12. Propagation Delay (t Offset) Test Reference The time from the PLL controlled edge to the non controlled edge, divided by ...

Page 11

MPC93R51 Low Voltage PLL Clock Driver D1/2 PIN 1 INDEX E1 D/2 4X 0. 28X SEATING PLANE (S) A1 DETAIL AD IDT™ Low ...

Page 12

MPC92459 MPC93R51 PART NUMBERS 900 MHz Low Voltage LVDS Clock Synthesizer Low Voltage PLL Clock Driver INSERT PRODUCT NAME AND DOCUMENT TITLE Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters ...

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