PAC002DTFQ California Micro Devices Corporation, PAC002DTFQ Datasheet
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PAC002DTFQ
Manufacturer Part Number
PAC002DTFQ
Description
P/active 1% tolerance dual termination network
Manufacturer
California Micro Devices Corporation
Datasheet
1.PAC002DTFQ.pdf
(2 pages)
© 2000 California Micro Devices Corp. All rights reserved.
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
V
Pin
CC
1
24
24
24
24
Package
24
2
STANDARD PART ORDERING INFORMATION
±1%
±100ppm
0
100mW
30mV TYP
24 Pin QSOP
˚
C to 70
QSOP
QSOP
QSOP
QSOP
23
Style
3
SCHEMATIC CONFIGURATION
˚
22
C
21
4
20
5
Tel: (408) 263-3214
CC
6
PAC001DTFQ/T
PAC002DTFQ/T
PAC003DTFQ/T
PAC004DTFQ/T
and
Tubes
19
Ordering Part Number
7
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
V
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)
CC
18 16
, for a total of 8 commons. In addition, the resistors
17
8
9
10
47
50
56
68
Fax: (408) 263-7846
PAC001DTFQ/R
PAC002DTFQ/R
PAC003DTFQ/R
PAC004DTFQ/R
Tape & Reel
15
11
14
12
R1(Ω)
100
112
136
94
13
GND
PAC001DTFQ
PAC002DTFQ
PAC003DTFQ
PAC004DTFQ
Part Marking
www.calmicro.com
R2 (Ω)
100
112
136
94
CODE
PACDT
001
002
003
004
C1611100
1
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 ...