800 Series - RC Networks ECL Terminator Circuits
Specifications are subject to change without notice.
309
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.
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.
A
MAXIMUM
PIN #1
REF.
MEDIUM PROFILE
HIGH PROFILE
A
MAXIMUM
PIN #1
REF.
8.89
(.350)
MAX.
3.43 + .38/ - .25
(.135 + .015/ - .010)
1.24
(.049)
MAX.
BOTH ENDS
.508
± .050
(.020
± .002)
TYP.
2.54
± .07
(.100
± .003*)
TYP.
NON-ACCUM.
2.49
(.098)
MAX.
.254
± .050
(.010
± .002)
TYP.
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.
6.35
(.250)
MAX.
3.43 + .38/ - .25
(.135 + .015/ - .010)
1.24
(.049)
MAX.
BOTH ENDS
.508
± .050
(.020
± .002)
TYP.
2.54
± .07
(.100
± .003*)
TYP.
NON-ACCUM.
3.81
(.150)
MAX.
.254
± .050
(.010
± .002)
TYP.
PART NUMBER
4608M-801
500/103
YYWW
CIRCUIT
RESISTANCE
CODE
PIN ONE
INDICATOR
MANUFACTURER'S
TRADEMARK
DATE CODE
801 AND 802
Represents total content. Layout may vary.
PART NUMBER
4610H-805
500/103
YYWW
CIRCUIT
RESISTANCE
CODE
PIN ONE
INDICATOR
MANUFACTURER'S
TRADEMARK
DATE CODE
803 AND 805
Represents total content. Layout may vary.
PART NUMBER
4612M-804
500
YYWW
CIRCUIT
RESISTANCE
CODE
PIN ONE
INDICATOR
MANUFACTURER'S
TRADEMARK
DATE CODE
804
Represents total content. Layout may vary.
Typical Part Marking
Product Dimensions
FOR ADDITIONAL INFORMATION, SEE APPLICATION NOTE ON PAGES 324 AND 325.
Features
s
Optimize data transmission in ECL
systems through proper termination
between drivers and receivers
s
Minimize overshoot, undershoot, and
ringing while increasing noise immunity
s
Provide decoupling capacitors
s
Minimize space and routing problems,
and reduce manufacturing cost per
installed resistive function
s
Increase board yields and reliability by
reducing component count