PL
IA
Features
■
NT
■
■
■
■
Optimize data transmission in ECL
systems through proper termination
between drivers and receivers
Minimize overshoot, undershoot, and
ringing while increasing noise immunity
Provide decoupling capacitors
RoHS compliant*
*R
■
Minimize space and routing problems,
and reduce manufacturing cost per
installed resistive function
Increase board yields and reliability by
reducing component count
oH
S
CO
M
For information on ECL Terminators,
download Bourns’ ECL Terminator
Application Note.
800 Series - RC Networks ECL Terminator Circuits
General Description
Digital systems incorporating Emitter
Coupled Logic (ECL) or other ultra-high
switching speed logic families will require
signal termination to prevent transmis-
sion line effects such as reflections and
ringing due to fast transition times.
Bourns 800 series resistor capacitor net-
works are ideal for termination of high
speed transmission lines. Each network
is composed of resistors for parallel
termination and bypass capacitor(s) for
cross talk noise reduction.
The 5 conformal coated SIP circuit varia-
tions offered are as follows.
Product Dimensions
Typical Part Marking
MEDIUM PROFILE
A
MAXIMUM
6.35
(.250)
MAX.
801 AND 802
Represents total content. Layout may vary.
CIRCUIT
PART NUMBER
4608M-801
500/103
YYWW
PIN #1
REF.
MAX. 1.24
BOTH ENDS (.049)
.508
±
.050
TYP.
(.020
±
.002)
2.54
±
.07
(.100
±
.003*)
TYP.
NON-ACCUM.
3.43 + .38/ - .25
(.135 + .015/ - .010)
PIN ONE
INDICATOR
RESISTANCE
CODE
DATE CODE
MANUFACTURER'S
TRADEMARK
803 AND 805
Represents total content. Layout may vary.
3.81
MAX.
(.150)
PART NUMBER
4610H-805
500/103
YYWW
CIRCUIT
RESISTANCE
CODE
DATE CODE
Electrical Characteristics
Resistance Tolerance......................±5 %
Resistance Power.......................0.1 watt
Capacitance Tolerance .................±20 %
Capacitor Dielectric Type..................X7R
Capacitance Voltage Rating .......50 Volts
Physical Characteristics
Flammability .........Conforms to UL94V-0
Leadframe ...................Copper (Olin 194)
Body Material...............Epoxy/Anhydride
(Conformal Material)
Custom Resistance Range
...........................10 ohms to 50K ohms
Custom Capacitance Range
................................39pF to 100,000pF
NPO and Z5U dielectrics available on a
custom basis.
.254
±
.050
TYP.
(.010
±
.002)
PIN ONE
INDICATOR
MANUFACTURER'S
TRADEMARK
HIGH PROFILE
A
MAXIMUM
8.89
(.350)
MAX.
804
Represents total content. Layout may vary.
CIRCUIT
PART NUMBER
PIN #1
REF.
MAX. 1.24
BOTH ENDS (.049)
.508
±
.050
TYP.
(.020
±
.002)
2.54
±
.07
(.100
±
.003*)
TYP.
NON-ACCUM.
3.43 + .38/ - .25
(.135 + .015/ - .010)
PIN ONE
INDICATOR
4612M-804
500
YYWW
RESISTANCE
CODE
DATE CODE
MANUFACTURER'S
TRADEMARK
2.49
MAX.
(.098)
For Standard Values Used in Capacitors,
Inductors, and Resistors,
click here.
.254
±
.050
TYP.
(.010
±
.002)
Governing dimensions are metric. Dimensions in parentheses
are inches and are approximate.
*Terminal centerline to centerline measurements made at point of
emergence of the lead from the body.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
800 Series - RC Networks ECL Terminator Circuits
801 8, 10 and 12 Pin SIP
(4608M-801-RC/CCL)
Designed to terminate 6 to 10 trans-
mission lines using parallel termination
techniques. Standard resistance values
include 50, 68, 75, 82, 90 or 100
ohms and are chosen to match the
characteristic impedance (Zo) of the
transmission line. A 0.01 mF capacitor is
provided to help maintain a solid power
supply level within the network package,
mitigating any cross talk or feedthrough
effects. Values for R and C not shown in
the following table are available on a
custom basis.
Standard 801 Part Numbers
R
±2%
50Ω
68Ω
75Ω
82Ω
90Ω
100Ω
C
±20%
0.01µF
0.01µF
0.01µF
0.01µF
0.01µF
0.01µF
Bourns Part Number
4608M-801-500/103L
4608M-801-680/103L
4608M-801-750/103L
4608M-801-820/103L
4608M-801-900/103L
4608M-801-101/103L
802 10 Pin SIP
(4610M-802-RC/CCL)
Designed to terminate 6 transmission
lines using parallel termination tech-
niques. Popular resistance values
include 50, 68, 75, 82, 90 or 100
ohms and are chosen to match the
characteristic impedance (Zo) of the
transmission line. Two 0.01
µF
capacitors are provided to reduce cross
talk between lines and to decrease
network package inductance. Values for
R and C not shown in the following table
are available on a custom basis.
Standard 802 Part Numbers
R
±2%
50Ω
68Ω
75Ω
82Ω
90Ω
100Ω
C
±20%
0.01µF
0.01µF
0.01µF
0.01µF
0.01µF
0.01µF
Bourns Part Number
4610M-802-500/103L
4610M-802-680/103L
4610M-802-750/103L
4610M-802-820/103L
4610M-802-900/103L
4610M-802-101/103L
803 8, 10 and 12 Pin SIP 10K ECL
(4610H-803-ZoC/CCL)
Designed to terminate 6 to 10 trans-
mission lines using Thevenin equivalent
parallel termination techniques in
systems using 10K ECL. Popular
impedance values include 50, 70, 75, 80,
90, 100, 120, 150 or 200 ohms. Standard
values for R1 and R2, based on Zo, have
been chosen to accommodate 10K ECL
designs. A 0.1
µF
capacitor is provided
to reduce cross talk noise within the
network package. Values for Zo and C
not shown in the following table are
available on a custom basis. This type of
termination is an alternative to parallel
termination used when a separate Vtt
power supply is not available.
Standard 803 Part Numbers
Zo
±2%
50Ω
70Ω
75Ω
80Ω
90Ω
100Ω
120Ω
150Ω
200Ω
R1
81Ω
113Ω
121Ω
130Ω
146Ω
162Ω
194Ω
243Ω
325Ω
R2
130Ω
182Ω
195Ω
208Ω
234Ω
260Ω
312Ω
390Ω
520Ω
C
±20%
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
Bourns Part No.
4610H-803-500/104L
4610H-803-700/104L
4610H-803-750/104L
4610H-803-800/104L
4610H-803-900/104L
4610H-803-101/104L
4610H-803-121/104L
4610H-803-151/104L
4610H-803-201/104L
801 Electrical Schematic and Application
802 Electrical Schematic and Application
1
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Vcc
8
Vtt
1
Line 1
Line 2
Line 3
Line 4
Line 5
Vcc
Vtt
Vcc
Vtt
10
Line 6
803 Electrical Schematic and Application
R2
C
R1
1
Line 1
Line 2
Line 3
Line 4
Line 7
Line 5
Line 6
Line 8
Vee
10
Vcc
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
800 Series - RC Networks ECL Terminator Circuits
804 12 Pin SIP ECL
(4612M-804-RCL)
Designed to terminate 6 transmission
lines using parallel termination
techniques. Popular resistance values
include 50 or 100 ohms. A 0.1
µF
capacitor is provided for connection
to Vee. Two 0.01
µF
capacitors are
provided for connection to Vtt. Values for
R and C not shown in the following table
are available on a custom basis.
Standard 804 Part Numbers
R
±2%
Ct
±20%
Ce
±20%
Bourns Part Number
4612M-804-500L
4612M-804-101L
50Ω 0.01µF 0.1µF
100Ω 0.01µF 0.1µF
805 8, 10 and 12 Pin SIP 100K ECL
(4610H-805-ZoC/CCL)
Designed to terminate 6 to 10 trans-
mission lines using Thevenin equivalent
parallel termination techniques in
systems using 100K ECL. Popular
impedance values include 50, 70, 75, 80,
90, 100, 120, 150 or 200 ohms. Standard
values for R1 and R2, based on Zo, have
been chosen to accommodate 100K
ECL designs. A 0.1
µF
capacitor is
provided to reduce cross talk noise
within the network package. Values for
Zo and C not shown in the following
table are available on a custom basis.
This type of termination is an alternative
to parallel termination used when a
separate Vtt power supply is not
available.
Standard 805 Part Numbers
Zo
±2%
50Ω
70Ω
75Ω
80Ω
90Ω
100Ω
120Ω
150Ω
200Ω
How To Order 801
46 08 M - 801 - 500 103 L
Model
(46 = Conformal SIP)
Number of Pins
(8, 10, 12)
Physical Config.
•M = Medium Profile
Electrical Configuration
Resistance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = ohms
Capacitance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = picofarads
Termination
L = Lead Free (Sn/Ag/Cu-plated)
Consult factory for other available options.
How To Order 802
46 10 M - 802 - 500 103 L
Model
(46 = Conformal SIP)
Number of Pins
Physical Config.
•M = Medium Profile
Electrical Configuration
Resistance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = ohms
Capacitance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = picofarads
Termination
L = Lead Free (Sn/Ag/Cu-plated)
Consult factory for other available options.
804 Electrical Schematic and Application
R1
90Ω
126Ω
135Ω
144Ω
161Ω
180Ω
216Ω
270Ω
360Ω
R2
113Ω
158Ω
169Ω
180Ω
202Ω
225Ω
270Ω
338Ω
450Ω
C
±20%
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
Bourns Part No.
4610H-805-500/104L
4610H-805-700/104L
4610H-805-750/104L
4610H-805-800/104L
4610H-805-900/104L
4610H-805-101/104L
4610H-805-121/104L
4610H-805-151/104L
4610H-805-201/104L
How To Order 803 and 805
46 08 H - 803 - 101 103 L
Model
(46 = Conformal SIP)
Number of Pins
(8, 10, 12)
Physical Config.
•H = High Profile
Electrical Configuration
•803
•805
Impedance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = ohms
Capacitance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = picofarads
Termination
L = Lead Free (Sn/Ag/Cu-plated)
Consult factory for other available options.
805 Electrical Schematic and Application
R2
C
R1
1
Line 1
Line 2
Line 3
Line 4
Line 7
Line 5
Line 6
Line 8
Vee
10
Vcc
How To Order 804
46 12 M - 804 - 500 L
Model
(46 = Conformal SIP)
Number of Pins
Physical Config.
•M = Medium Profile
Electrical Configuration
Resistance Code
•First 2 digits are significant
•Third digit represents the number of zeros to follow.
•Units = ohms
Termination
L = Lead Free (Sn/Ag/Cu-plated)
Consult factory for other available options.
REV. 11/06
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
