PAC002DTFQ California Micro Devices Corporation, PAC002DTFQ Datasheet

PAC002DTFQ

Manufacturer Part Number

PAC002DTFQ

Description

P/active 1% tolerance dual termination network

Manufacturer

California Micro Devices Corporation

Datasheet

1.PAC002DTFQ.pdf (2 pages)

Current page: 1 of 2
Download datasheet (51Kb)

11/19/2000

Features

• Minimal ground bounce, crosstalk

• Stable 1% absolute tolerance elements

• 16 terminating lines per QSOP package

• Saves board space and reduces assembly cost

Product Description

High speed logic devices like HSTL (High Speed

Transceiver Logic) demand unique, high speed bus

terminations. The dual Thévenin termination network

provides 16 terminating channels per package, and

optimizes signal integrity by reducing reflections and

ringing. The terminations are available in a range of

standard values and are ideal for use in HSTL busses.

As seen in the schematic, R1 is typically tied to V

serves as a pull-up resistor, while R2 functions as a pull-

down resistor and is tied to ground (or the most negative

supply voltage). In addition, the equivalent Thévenin

Absolute Tolerance (R1 & R2)

TCR

Operating Temperature Range

Power Rating/Resistor

Crosstalk (see Test Circuit)

Package

215 Topaz Street, Milpitas, California 95035

CALIFORNIA MICRO DEVICES

R Code

001

002

003

004

P/Active 1% Tolerance Dual Thévenin Termination Network

STANDARD VALUES

Package

STANDARD PART ORDERING INFORMATION

±1%

±100ppm

100mW

30mV TYP

24 Pin QSOP

C to 70

QSOP

Style

SCHEMATIC CONFIGURATION

Tel: (408) 263-3214

PAC001DTFQ/T

PAC002DTFQ/T

PAC003DTFQ/T

PAC004DTFQ/T

and

Tubes

Ordering Part Number

Applications

• HSTL termination

• Thévenin termination

• ECL, TTL termination

resistance (R1 in parallel with R2) should match the

impedance of the trace. Ground-bounce and crosstalk

are virtually eliminated using a proprietary lead-frame

which includes four direct ground connections to the die

substrate, as well as four double-bonded connections to

are trimmed to a tight absolute tolerance of 1% which

provides tight impedance-matching and results in greatly

reduced reflections. This unique proprietary design

provides optimal signal integrity.

BUS IMPEDANCE (Ω)

18 16

, for a total of 8 commons. In addition, the resistors

Fax: (408) 263-7846

PAC001DTFQ/R

PAC002DTFQ/R

PAC003DTFQ/R

PAC004DTFQ/R

Tape & Reel

R1(Ω)

100

112

136

GND

PAC001DTFQ

PAC002DTFQ

PAC003DTFQ

PAC004DTFQ

Part Marking

www.calmicro.com

R2 (Ω)

100

112

136

CODE

PACDT

001

002

003

004

C1611100

Related parts for PAC002DTFQ

PAC002DTFQ Summary of contents

Page 1

... Tel: (408) 263-3214 R1(Ω) R2 (Ω 100 100 56 112 112 68 136 136 GND Tape & Reel Part Marking PAC001DTFQ/R PAC001DTFQ PAC002DTFQ/R PAC002DTFQ PAC003DTFQ/R PAC003DTFQ PAC004DTFQ/R PAC004DTFQ Fax: (408) 263-7846 www.calmicro.com PACDT CODE 001 002 003 004 C1611100 1 ...

Page 2

CALIFORNIA MICRO DEVICES PACKAGE DIMENSIONS, POWER DISSIPATION & ORDERING INFORMATION Package Pins # 16 mm inches MIN MAX MIN MAX A 1.35 1.75 0.053 0.069 A 0.10 0.25 0.004 0.010 1 B 0.20 0.30 ...

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