NOT RECOMMENDED FOR NEW DESIGNS
Micrel, Inc.
PROGRAMMABLE
DELAY CHIP
FEATURES
SY10E195
SY100E195
DESCRIPTION
■ Up to 2ns delay range
■ Extended 100E VEE range of –4.2V to –5.5V
■
■
■
■
■
■
Precison Edge®
SY10E195
Precison SY100E195
Edge®
The SY10/100E195 are programmable delay chips
(PDCs) designed primarily for clock de-skewing and timing
adjustment. They provide variable delay of a differential
ECL input transition.
The delay section consists of a chain of gates
organized as shown in the logic diagram. The first two
delay elements feature gates that have been modified to
have delays 1.25 and 1.5 times the basic gate delay of
approximately 80ps. These two elements provide the
E195 with a digitally-selectable resolution of
approximately 20ps. The required device delay is selected
by the seven address inputs D[0:6], which are latched
on-chip by a high signal on the latch enable (LEN) control.
If the LEN signal is either LOW or left floating, then the
latch is transparent.
Because the delay programmability of the E195 is
achieved by purely differential ECL gate delays, the
device will operate at frequencies of >1GHz, while
maintaining over 600mV of output swing.
The E195 thus offers very fine resolution, at very high
frequencies, selectable entirely from a digital input,
allowing for very accurate system clock timing.
An eighth latched input, D7, is provided for cascading
multiple PDCs for increased programmable range. The
cascade logic allows full control of multiple PDCs, at the
expense of only a single added line to the data bus for
each additional PDC, without the need for any external
gating.
≈20ps/digital step resolution
>1GHz bandwidth
On-chip cascade circuitry
75KkΩ input pulldown resistor
Fully compatible with Motorola MC10E/100E195
Available in 28-pin PLCC package
PIN NAMES
Pin
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
Function
IN/IN
Signal Input
EN
Input Enable
D[0:7]
Mux Select Inputs
Q/Q
Signal Output
LEN
Latch Enable
SET MIN
Minimum Delay Set
SET MAX
Maximum Delay Set
CASCADE
Cascade Signal
Rev.: H
1
Amendment: /0
Issue Date: March 2006
Precison Edge®
SY10E195
SY100E195
Micrel, Inc.
Ordering Information(1)
D7
NC
D5
D6
D2
D3
D4
PACKAGE/ORDERING INFORMATION
25 24 23 22 21 20 19
Part Number
Package
Type
Operating
Range
Package
Marking
Lead
Finish
SY10E195JC
Sn-Pb
D1
26
18
NC
SY10E195JC
J28-1
Commercial
D0
LEN
27
17
NC
VCC
SY10E195JCTR(2)
J28-1
Commercial
SY10E195JC
Sn-Pb
SY100E195JI
J28-1
Industrial
SY100E195JI
Sn-Pb
28
16
TOP VIEW
PLCC
J28-1
VEE
IN
2
14
Q
SY100E195JITR(2)
J28-1
Industrial
SY100E195JI
Sn-Pb
IN
3
13
VBB
4
12
Q
VCCO
SY10E195JZ(3)
J28-1
Commercial
SY10E195JZ with
Pb-Free bar-line indicator
Matte-Sn
SY10E195JZTR(2, 3)
J28-1
Commercial
SY10E195JZ with
Pb-Free bar-line indicator
Matte-Sn
SY100E195JY(3)
J28-1
Industrial
SY100E195JY with
Pb-Free bar-line indicator
Matte-Sn
SY100E195JYTR(2, 3)
J28-1
Industrial
SY100E195JY with
Pb-Free bar-line indicator
Matte-Sn
7
8
9
VCCO
10 11
CASCADE
6
NC
NC
5
15
EN
SET MIN
SET MAX
CASCADE
1
28-Pin PLCC (J28-1)
Notes:
1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
2
Precison Edge®
SY10E195
SY100E195
Micrel, Inc.
BLOCK DIAGRAM
1
0
1
1
*1.5
0
1
1
D1
0
1
1
D2
1
0
1
7-Bit Latch
D3
4 gates
D4
0
1
D5
8 gates
D6
0
1
Q
LEN
Latch
D
D7
16 gates
0
1
Q
Q
3
0
1
1
Cascade
CASCADE
CASCADE
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
VBB
IN
IN
EN
*1.25
LEN
SET MIN
SET MAX
D0
*Delays are 25% or 50% longer than
standard (standard = 80ps).
Precison Edge®
SY10E195
SY100E195
Micrel, Inc.
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = 0°C
Symbol
Parameter
IIH
Input HIGH Current
IEE
Power Supply Current
10E
100E
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
TA = +25°C
TA = +85°C
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Condition
—
—
150
—
—
150
—
—
150
µA
—
mA
—
—
—
130
130
156
156
—
—
130
130
156
156
—
—
130
150
156
179
4
Precison Edge®
SY10E195
SY100E195
Micrel, Inc.
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = GND
TA = 0°C
Symbol
tPD
TA = +25°C
TA = +85°C
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max. Unit
Propagation Delay to Output
IN to Q; Tap = 0
IN to Q; Tap = 127
EN to Q; Tap = 0
D7 to CASCADE
1210
3320
1250
300
1360
3570
1450
450
1510
3820
1650
700
1240
3380
1275
300
1390
3630
1475
450
1540
3880
1675
700
1440
3920
1350
300
1590
4270
1650
450
1765
4720
1950
700
2000
2175
—
2050
2240
—
2375
2580
—
—
—
55
115
250
505
1000
17
34
68
136
272
544
1088
—
—
105
180
325
620
1190
—
—
55
115
250
515
1030
17.5
35
70
140
280
560
1120
—
—
105
180
325
620
1220
—
—
65
140
305
620
1240
21
42
84
168
336
672
1344
—
—
120
205
380
740
1450
tRANGE
Programmable Range
tPD (max.) – tPD (min.)
∆t
Step Delay
D0 High
D1 High
D2 High
D3 High
D4 High
D5 High
D6 High
Condition
ps
—
ps
—
ps
6
Lin
Linearity
D1
D0
—
D1
D0
—
D1
D0
—
—
7
tskew
Duty Cycle Skew, tPHL–tPLH
—
±30
—
—
±30
—
—
±30
—
ps
1
tS
Set-up Time
D to LEN
D to IN
EN to IN
200
800
200
0
—
—
—
—
—
200
800
200
0
—
—
—
—
—
200
800
200
0
—
—
—
—
—
Hold Time
LEN to D
IN to EN
500
0
250
—
—
—
500
0
250
—
—
—
500
0
250
—
—
—
Release Time
EN to IN
SET MAX to LEN
SET MIN to LEN
300
800
800
—
—
—
—
—
—
300
800
800
—
—
—
—
—
—
300
800
800
—
—
—
—
—
—
—
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