MC100EP221FA [MOTOROLA]
LOW-VOLTAGE 1:20 DIFFERENTIAL ECL/PECL CLOCK DRIVER; 低电压1:20差分ECL / PECL时钟驱动器型号: | MC100EP221FA |
厂家: | MOTOROLA |
描述: | LOW-VOLTAGE 1:20 DIFFERENTIAL ECL/PECL CLOCK DRIVER |
文件: | 总5页 (文件大小:128K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SEMICONDUCTOR TECHNICAL DATA
The MC100EP221 is a low skew 1–to–20 differential driver, designed
with clock distribution in mind. It accepts two clock sources into an input
multiplexer. The input signals can be either differential or single–ended if
LOW–VOLTAGE
1:20 DIFFERENTIAL
the V
output is used. The selected signal is fanned out to 20 identical
BB
differential outputs.
ECL/PECL CLOCK DRIVER
• 150ps Part–to–Part Skew
• 50ps Output–to–Output Skew
• Differential Design
• V
Output
BB
• Voltage and Temperature Compensated Outputs
• Low Voltage V Range of –2.375 to –3.8V
EE
• 75kΩ Input Pulldown Resistors
The EP221 is specifically designed, modeled and produced with low
skew as the key goal. Optimal design and layout serve to minimize gate–
to–gate skew within a device, and empirical modeling is used to
determine process control limits that ensure consistent t distributions
pd
from lot to lot. The net result is a dependable, guaranteed low skew
device.
FA SUFFIX
52–LEAD TQFP PACKAGE
CASE 848D–03
To ensure that the tight skew specification is met it is necessary that
both sides of the differential output are terminated into 50Ω, even if only
one side is being used. In most applications, all ten differential pairs will
be used and therefore terminated. In the case where fewer than ten pairs
are used, it is necessary to terminate at least the output pairs on the same
package side as the pair(s) being used on that side, in order to maintain
minimum skew. Failure to do this will result in small degradations of
propagation delay (on the order of 10–20ps) of the output(s) being used
which, while not being catastrophic to most designs, will mean a loss of
skew margin.
The MC100EP221, as with most other ECL devices, can be operated from a positive V
CC
supply in PECL mode. This allows
the EP221 to be used for high performance clock distribution in +3.3V or +2.5V systems. Designers can take advantage of the
EP221’s performance to distribute low skew clocks across the backplane. In a PECL environment, series or Thevenin line
terminations are typically used as they require no additional power supplies. For more information on using PECL, designers
should refer to Motorola Application Note AN1406/D.
This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice.
2/97
REV 0.1
Motorola, Inc. 1997
MC100EP221
Pinout: 52–Lead TQFP
(Top View)
39 38 37 36
35 34 33 32 31 30 29 28 27
40
41
42
43
44
45
46
47
48
49
50
51
52
26
25
24
23
22
21
20
19
18
17
16
15
14
VCCO
Q5B
Q5
Q12
Q12B
Q13
Q4B
Q4
Q13B
Q14
Q3B
Q3
Q14B
Q15
MC100EP211
Q2B
Q2
Q15B
Q16
Q1B
Q1
Q16B
Q17
Q0B
Q0
Q17B
VCCO
1
2
3
4
5
6
7
8
9
10 11 12 13
PIN NAMES
Pins
Function
CLKn, CLKn
Q0:19, Q0:19
CLK_SEL
VBB
Differential Input Pairs
Differential Outputs
Active Clock Select Input
V
BB
Output
FUNCTION
CLK_SEL
Active Input
0
1
CLK0, CLK0
CLK1, CLK1
LOGIC SYMBOL
CLK0
0
Q0
Q0
CLK0
CLK1
1
16
Q1:18
Q1:18
CLK1
CLK_SEL
Q19
Q19
MOTOROLA
2
TIMING SOLUTIONS
BR1333 — Rev 6
MC100EP221
ECL DC CHARACTERISTICS
–40°C
0°C
25°C
85°C
Typ
Symbol
Characteristic
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Max
Unit
V
V
–1.025 –0.955 –0.880 –1.025 –0.955 –0.880 –1.025 –0.955 –0.880 –1.025 –0.955 –0.880
–1.810 –1.705 –1.620 –1.810 –1.705 –1.620 –1.810 –1.705 –1.620 –1.810 –1.705 –1.620
OH
V
V
OL
V
–1.165
–1.810
–1.38
–0.880 –1.165
–1.475 –1.810
–0.880 –1.165
–1.475 –1.810
–0.880 –1.165
–1.475 –1.810
–0.880
–1.475
–1.26
V
IH
V
V
IL
V
Output Reference
Voltage
–1.26
–1.38
–1.26
–1.38
–1.26
–1.38
V
BB
V
Power Supply Voltage –2.375
Input HIGH Current
–3.8
150
–2.375
–3.8
150
–2.375
–3.8
150
–2.375
–3.8
150
V
EE
I
µA
mA
IH
I
Power Supply Current
EE
PECL DC CHARACTERISTICS
–40°C
Typ
0°C
Typ
25°C
Typ
85°C
Symbol
Characteristic
Min
Max
Min
Max
Min
Max
Min
Typ
Max
Unit
V
Output HIGH Voltage
(NO TAG)
2.275
2.345
2.420
1.680
2.420
1.825
2.04
2.275
2.345
2.420
1.680
2.420
1.825
2.04
2.275
2.345
2.420
1.680
2.420
1.825
2.04
2.275 2.345 2.420
V
OH
V
Output LOW Voltage
(NO TAG)
1.490
2.135
1.490
1.92
1.595
1.490
2.135
1.490
1.92
1.595
1.490
2.135
1.490
1.92
1.595
1.490 1.595 1.680
V
V
V
V
OL
V
Input HIGH Voltage
(NO TAG)
2.135
1.490
1.92
2.420
1.825
2.04
IH
V
Input LOW Voltage
(NO TAG)
IL
V
Output Reference
Voltage (Note NO TAG)
BB
V
Power Supply Voltage
Input HIGH Current
Power Supply Current
2.375
3.8
2.375
3.8
2.375
3.8
2.375
3.8
V
CC
I
150
150
150
150
µA
mA
IH
I
EE
1. These values are for V
= 3.3V. Level Specifications will vary 1:1 with V .
CC
CC
AC CHARACTERISTICS (V
= V
(min) to V
(max); V
= V
= GND)
EE
EE
EE
CC
CCO
–40°C
0°C
25°C
85°C
Symbol
Characteristic
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
Condition
t
Propagation Delay to Output
IN (differential)
ps
PLH
t
500
500
PHL
IN (single–ended)
t
Within–Device Skew
Part–to–Part Skew (Diff)
50
150
50
150
50
150
50
150
ps
skew
f
Maximum Input Frequency
Minimum Input Swing
Common Mode Range
Output Rise/Fall Time
1.5
1.5
1.5
1.5
GHz
mV
V
max
V
500
500
500
500
PP
V
CMR
t /t
r f
200
200
200
200
ps
20%–80%
3
MOTOROLA
MC100EP221
OUTLINE DIMENSIONS
FA SUFFIX
PLASTIC TQFP PACKAGE
CASE 848D–03
ISSUE C
4X
4X TIPS
–X–
X=L, M, N
0.20 (0.008)
H
L–M
N
0.20 (0.008) T L–M N
C
52
40
L
1
39
AB
AB
G
3X VIEW Y
–L–
–M–
VIEW Y
F
B
V
BASE METAL
PLATING
B1
V1
13
27
J
U
14
26
D
–N–
M
S
S
0.13 (0.005)
T
L–M
N
A1
S1
SECTION AB–AB
ROTATED 90 CLOCKWISE
A
NOTES:
S
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,
1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE –H– IS LOCATED AT BOTTOM OF LEAD AND
IS COINCIDENT WITH THE LEAD WHERE THE LEAD EXITS
THE PLASTIC BODY AT THE BOTTOM OF THE PARTING
LINE.
4. DATUMS –L–, –M– AND –N– TO BE DETERMINED AT DATUM
PLANE –H–.
4X θ2
4X θ3
C
0.10 (0.004)
T
5. DIMENSIONS S AND V TO BE DETERMINED AT SEATING
PLANE –T–.
–H–
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25 (0.010)
PER SIDE. DIMENSIONS A AND B DO INCLUDE MOLD
MISMATCH AND ARE DETERMINED AT DATUM PLANE -H-.
7. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION.
DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD
WIDTH TO EXCEED 0.46 (0.018). MINIMUM SPACE
BETWEEN PROTRUSION AND ADJACENT LEAD OR
PROTRUSION 0.07 (0.003).
–T–
SEATING
PLANE
VIEW AA
MILLIMETERS
MIN MAX
10.00 BSC
5.00 BSC
10.00 BSC
5.00 BSC
INCHES
MIN MAX
0.394 BSC
0.197 BSC
0.394 BSC
0.197 BSC
DIM
A
A1
B
B1
C
C1
C2
D
S
0.05 (0.002)
W
2 X R R1
θ1
–––
0.05
1.30
0.20
0.45
0.22
1.70
–––
0.002
0.051
0.008
0.018
0.009
0.067
0.20
1.50
0.40
0.75
0.35
0.008
0.059
0.016
0.030
0.014
0.25 (0.010)
C2
θ
E
F
GAGE PLANE
G
0.65 BSC
0.026 BSC
J
K
R1
S
S1
U
0.07
0.50 REF
0.08
12.00 BSC
6.00 BSC
0.20
0.003
0.020 REF
0.003
0.472 BSC
0.236 BSC
0.004 0.006
0.008
K
E
C1
0.20
0.008
Z
0.09
0.16
V
12.00 BSC
0.472 BSC
0.236 BSC
0.008 REF
0.039 REF
VIEW AA
V1
W
Z
6.00 BSC
0.20 REF
1.00 REF
θ
0
7
0
7
–––
REF
13
–––
REF
13
θ
θ
θ
1
2
3
0
12
5
0
12
5
MOTOROLA
4
TIMING SOLUTIONS
BR1333 — Rev 6
MC100EP221
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
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MC100EP221/D
◊
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