IDTMPC941FAR2 IDT, Integrated Device Technology Inc, IDTMPC941FAR2 Datasheet

IDTMPC941FAR2

Manufacturer Part Number

IDTMPC941FAR2

Description

Manufacturer

IDT, Integrated Device Technology Inc

Type

Clock Driverr

Datasheet

1.IDTMPC941FAR2.pdf (12 pages)

Specifications of IDTMPC941FAR2

Number Of Clock Inputs

Output Frequency

250MHz

Output Logic Level

LVCMOS

Operating Supply Voltage (min)

2.375V

Operating Supply Voltage (typ)

2.5/3.3V

Operating Supply Voltage (max)

3.465V

Package Type

LQFP

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Signal Type

LVCMOS/LVPECL

Mounting

Surface Mount

Pin Count

Quiescent Current

5mA

Lead Free Status / RoHS Status

Not Compliant

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LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP

IDT™ / ICS™ CLOCK DISTRIBUTION CHIP

the capability to select either a differential LVPECL or an LVCMOS compatible

input. The 27 outputs are LVCMOS compatible and feature the drive strength to

drive 50 Ω series or parallel terminated transmission lines. With output-to-output

skews of 250 ps, the MPC941 is ideal as a clock distribution chip for the most

demanding of synchronous systems. For a similar product with a smaller number

of outputs, please consult the MPC940 data sheet.

•

output buffers of the MPC941 are ideal for driving series terminated transmission

lines. More specifically, each of the 27 MPC941 outputs can drive two series

terminated 50 Ω transmission lines. With this capability, the MPC941 has an

effective fanout of 1:54. With this level of fanout, the MPC941 provides enough

copies of low skew clocks for most high performance synchronous systems.

directly with an LVPECL fanout buffer like the MC100EP111 to build very wide

clock fanout trees or to couple to a high frequency clock source. The LVCMOS

input provides a more standard interface for applications requiring only a single

clock distribution chip at relatively low frequencies. In addition, the two clock

sources can be used as a test clock interface as well as the primary system clock.

A logic HIGH on the LVCMOS_CLK_Sel pin will select the LVCMOS level clock

input.

space and cost of the device. The 48-lead LQFP has a 7x7 mm body size.

The MPC941 is a 1:27 low voltage clock distribution chip. The device features

With a low output impedance, in both the HIGH and LOW logic states, the

The differential LVPECL inputs of the MPC941 allow the device to interface

The MPC941 is fully 3.3 V and 2.5 V compatible. The 48-lead LQFP package was chosen to optimize performance, board

48-Lead Pb-free Package Available

LVPECL or LVCMOS Clock Input

250 ps Maximum Output-to-Output Skew

Drives Up to 54 Independent Clock Lines

Maximum Output Frequency of 250 MHz

High Impedance Output Enable

Extended Temperature Range: –40°C to +85°C

48-Lead LQFP Packaging

3.3 V or 2.5 V V

Supply Voltage

LOW VOLTAGE 3.3 V/2.5 V

48-LEAD LQFP PACKAGE

DISTRIBUTION CHIP

Pb-FREE PACKAGE

1:27 CLOCK

CASE 932-03

AE SUFFIX

FA SUFFIX

MPC941 REV. 8 APRIL 29, 2008

SCALE 2:1

MPC941

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IDTMPC941FAR2 Summary of contents

Page 1

LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP The MPC941 is a 1:27 low voltage clock distribution chip. The device features the capability to select either a differential LVPECL or an LVCMOS compatible input. The 27 outputs are LVCMOS compatible and feature ...

Page 2

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP PECL_CLK PECL_CLK LVCMOS_CLK LVCMOS_CLK_SEL Pinout: 48-Lead TQFP (Top View GND ...

Page 3

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Table 2. Absolute Maximum Ratings Symbol V Supply Voltage Input Voltage Output Voltage OUT I DC Input Current Output Current OUT T Storage Temperature ...

Page 4

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Table 4. AC Characteristics (V CC Symbol Characteristics f Maximum Output Frequency MAX LVCMOS_CLK Input Rise/Fall Time Propagation Delay PLH t PHL t Output Disable Time PLZ, ...

Page 5

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Table 6. AC Characteristics (V CC Symbol Characteristics f Maximum Output Frequency MAX LVCMOS_CLK Input Rise/Fall Time Propagation Delay PLH t PHL t Output Disable Time PLZ, ...

Page 6

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Driving Transmission Lines The MPC941 clock driver was designed to drive high- speed signals in a terminated transmission line environment. To provide the optimum flexibility to the user, the output drivers were designed ...

Page 7

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Power Consumption of the MPC941 and Thermal Management The MPC941 AC specification is guaranteed for the entire operating frequency range up to 250 MHz. The MPC941 power consumption and the associated long-term reliability ...

Page 8

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP 300 T 250 f (AC) MAX 200 150 100 Safe operation 50 0 500 400 300 IFPM, CONVECTION Figure 4. Maximum MPC941 frequency 3.3 V, MTBF 9.1 years, CC driving series ...

Page 9

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP 300 250 f (AC) MAX 200 150 100 Safe operation 50 0 500 400 300 IFPM, CONVECTION Figure 8. Maximum MPC941 frequency 2.5 V, MTBF 9.1 years, CC driving series terminated ...

Page 10

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Pulse Generator Z = 50Ω Figure 12. LVCMOS_CLK MPC941 AC Test Reference for V Differential Pulse Generator Z = 50Ω Figure 13. PECL_CLK MPC941 AC Test Reference for V PCLK_CLK V PP PCLK_CLK ...

Page 11

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP 4X 0.200 AB T 0.200 AC T BASE METAL 0.080 AC T-U ...

Page 12

MPC941 LOW VOLTAGE, 1:27 CLOCK DISTRIBUTION CHIP Contact Information: www.IDT.com Sales 800-345-7015 (inside USA) +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT © 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT ...

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