SK1928ATF [SEMTECH]

Clock Driver, ECL, PQFP32;
SK1928ATF
型号: SK1928ATF
厂家: SEMTECH CORPORATION    SEMTECH CORPORATION
描述:

Clock Driver, ECL, PQFP32

文件: 总30页 (文件大小:1755K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
SK19XX  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
SK19XX Family Functional Block Diagram  
OUT0  
OUT0*  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
D Q  
IN  
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
Revision 1/October 25, 2001  
1
www.semtech.com  
SK19XX Family  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
PRELIMINARY  
PRELIMINARY  
SK19XX Family Product Selection Guide  
3 GHz  
Logic Family  
Synch / Asynch Operation  
1:9 Signal Distribution  
Power  
Supply  
Output Configuration  
Output  
Availability  
Internal  
50W Source Current Sink  
50W  
Double  
Termination  
Open  
Emitter  
Product  
3.3V 5.2V  
Termination  
(Double  
Termination)  
SK1900  
SK1901  
SK1902  
SK1903  
SK1904  
l
l
l
l
l
l
l
l
ECL / PECL  
Double Swing / TTL  
ECL / PECL  
Now  
Now  
Now  
Now  
Now  
l
l
l
l
l
ECL / PECL  
l
ECL / PECL  
Logic / Translation Family  
Translation  
Output Configuration  
Availability  
50W  
Source  
Termination  
Open  
Emitter  
50W Double  
Termination  
Product  
SK1925  
SK1926  
SK1927  
SK1928  
SK1929  
SK1930  
Anything to PECL  
Anything to ECL  
Anything to PECL  
Anything to ECL  
Anything to PECL  
Anything to ECL  
l
l
Now  
Now  
Now  
Now  
Now  
Now  
l
l
l
l
Open Collector Logic Family  
Output Configuration  
Open Collector  
l
Output Current  
Availability  
Product  
SK1999  
12mA  
Now  
Revision 1/October 25, 2001  
www.semtech.com  
2
SK19XX Family  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
HIGH-PERFORMANCE PRODUCTS  
PRELIMINARY  
SK19XX Family Package Information  
5mm x 5mm TQFP  
3
D, E  
2
4
D1, E1  
See  
Figure 3.  
b
8
Top View  
e
A
A2  
SEATING  
PLANE  
A1  
b
10  
Side View  
Revision 1/October 25, 2001  
3
www.semtech.com  
SK19XX Family  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
SK19XX Family Package Information (continued)  
5mm x 5mm TQFP  
WITH  
PLATING  
9
7
b
02  
e / 2  
2
R1  
01  
c 1  
c
R2  
S
GAGE PLANE  
03  
11  
00  
L
b
See Detail in  
Figure 2  
(L1)  
9
b1  
Figure 1.  
Figure 2.  
Figure 3.  
JEDEC Variation  
All Dimensions in Millimeters  
1ꢀ All dimensions and tolerancing conforms  
to ANSI Y14ꢀ5M-1982ꢀ  
2ꢀ The top package body size may be smaller  
than the bottom package body size by as  
much as 0ꢀ15 mmꢀ  
Symbol  
A
MIN  
1.00  
0.05  
0.95  
NOM  
1.10  
0.10  
1.00  
7.00 BSC  
5.00 BSC  
7.00 BSC  
5.00 BSC  
32  
MAX  
1.20  
0.15  
1.05  
Note Comments  
Package Stand Off Height  
Air Gap  
A1  
A2  
D
3ꢀ To be determined at seating planeꢀ  
4ꢀ Dimensions D1 and E1 do not include  
mold protrusionꢀ Allowable protrusion  
is 0ꢀ25 mm per sideꢀ D1 and E1 are  
maximum plastic body size dimensions  
including mold mismatchꢀ  
5ꢀ Details of Pin 1 identifier optional, but  
must be located within the zone indicatedꢀ  
6ꢀ All dimensions are in millimetersꢀ  
7ꢀ Dimension b does not include Dambar  
protrusionꢀ Allowable Dambar protrusion  
shall not cause the lead width to exceed  
the maximum b dimension by more than  
0ꢀ08 mmꢀ Dambar cannot be located  
on the lower radius or the footꢀ Minimum  
space between protrusion and an  
adjacent lead is 0ꢀ07 mm for 0ꢀ4 mm and  
0ꢀ5 mm pitch packagesꢀ  
Package Body Thickness  
3
D1  
E
4, 2 Package Body Length  
3
E1  
N
4, 2 Package Body Width  
Lead Count  
e
0.50 BSC  
0.22  
0.20  
Lead Pitch  
b
0.17  
0.17  
0.08  
0.08  
0o  
0.27  
0.23  
7
Lead Thickness  
b1  
R1  
R2  
00  
01  
02  
03  
S
0.20  
7o  
3.5o  
0o  
11o  
12o  
13o  
13o  
11o  
12o  
0.20  
0.09  
0.09  
0.45  
8ꢀ Exact shape of each corner is optionalꢀ  
9ꢀ These dimensions apply to the flat  
section of the lead between 0ꢀ10 mm  
and 0ꢀ25 mm from the lead tipꢀ  
10ꢀ A1 is defined as the distance from the  
seating plane to the lowest point of the  
package bodyꢀ  
c
0.20  
0.16  
0.75  
c1  
L
0.60  
1.00 REF  
0.20  
0.20  
0.08  
0.08  
L1  
aaa  
bbb  
ccc  
ddd  
Revision 1/October 25, 2001  
www.semtech.com  
4
SK19XX Family  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Absolute Maximum Ratings*  
Symbol  
Parameter  
Value  
Unit  
V
V
Power Supply (V = 0V)  
CC  
- 8.0 to 0  
V
EE  
Power Supply (V = 0V)  
EE  
+8.0 to 0  
V
V
CC  
I
V
Input Voltage  
VCC³ VI³ VEE  
Output Current  
Continuous  
Surge  
I
50  
100  
mA  
mA  
OUT  
o
T
Storage Temperature  
-65 to +150  
265  
C
stg  
o
o
T
sol  
Solder Temperature (<2 to 3 seconds: 245 C desired)  
C
* Maximum Ratings are those values beyond which damage to the device may occur.  
Note:  
1. Device is ESD sensitive and requires protective handling.  
Revision 1/October 25, 2001  
5
www.semtech.com  
SK1900  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1900 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
3.3V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1900 uses standard open emitter ECL outputs  
optimized for:  
General purpose ECL compatible applications  
Multiple destination applications (daisy  
chain).  
Output Option  
Open Emitter  
VCC  
Functional Block Diagram  
OUT0  
OUT0*  
OUT1  
OUT1*  
OUT  
OUT*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
OUT6*  
Pin Description  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
VCC  
SEL  
SEL*  
CLK  
CLK*  
IN  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
VCC  
32 pin, 5 mm X 5 mm  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
6
SK1900  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
Inputs  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
IIH  
IIL  
-5  
-6  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
| OUT - OUT* |  
600  
VCC - 1.5  
700  
VCC - 1.3  
mV  
V
Output Common Mode Range  
(OUT + OUT*) / 2  
VCC - 1.1  
170  
Power Supply  
Power Supply Current  
IEE  
mA  
Test Conditions: Outputs terminated with 50W to VCC 2V.  
AC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
t
20  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC - 2.0V  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
7
www.semtech.com  
SK1901  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1901 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
1:9 Clock/Data Driver  
2 GHz Fmax  
4.5V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1901 uses open emitter outputs with a double  
amplitude swing suitable for the following applications:  
TTL compatible destinations  
Double termination situations that require  
a full swing at the destination  
Long cables  
Output Option  
Open Emitter  
VCC  
Functional Block Diagram  
OUT0  
OUT0*  
OUT  
OUT1  
OUT1*  
OUT*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
Pin Description  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
VCC  
SEL  
SEL*  
CLK  
CLK*  
IN  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
VCC  
32 pin, 5 mm X 5 mm  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
8
SK1901  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - V = 4.2V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC -0.2  
V
V
(IN - IN*, CLK - CLK*, SEL -SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
| OUT -OUT* |  
1.2  
VCC -2.2  
1.4  
VCC - 1.9  
V
V
Output Common Mode Range  
(OUT + OUT*) / 2  
VCC - 1.7  
170  
Power Supply  
Power Supply Current  
IEE  
mA  
Test Conditions: Outputs terminated with 50W to VCC 3.3V.  
AC Characteristics  
(V - V = 4.2V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
500  
400  
350  
760  
650  
625  
1020  
900  
900  
ps  
ps  
ps  
Channel to Channel Skew  
t
100  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
2.0  
PW min  
350  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
200  
<3  
350  
ps  
o
ps / C  
DTpd /DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC 3.3V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
9
www.semtech.com  
SK1902  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1902 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
3.3V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1902 uses 50W outputs with source /sink  
capability, and is optimized for applications that require:  
Point to point, double terminated, timing  
critical lines  
Output Option  
50W Source / Sink  
VCC  
Functional Block Diagram  
50  
OUT  
50Ω  
OUT0  
*
OUT  
OUT0*  
6 mA  
VEE  
6 mA  
OUT1  
OUT1*  
VEE  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
OUT6*  
Pin Description  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VCC  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
32 pin, 5 mm X 5 mm  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
10  
SK1902  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
(OUT + OUT*) / 2  
ISINK  
600  
VCC - 1.4  
4.0  
700  
VCC -1.2  
6
mV  
V
mA  
W
VCC - 1.0  
7.5  
ROUT  
40  
50  
60  
Power Supply  
Power Supply Current  
IEE  
265  
mA  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
t
20  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
o
ps / C  
DTpd /DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC -2.0V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
11  
www.semtech.com  
SK1903  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1903 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
3.3V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1903 outputs are open emitter with an internal  
current source, optimized for applications that are:  
Point to point, double terminated, timing  
critical lines  
Non-50W transmission lines  
Output Option  
Internal Current Sink  
VCC  
Functional Block Diagram  
OUT  
OUT0  
OUT0*  
*
OUT  
6 mA  
VEE  
6 mA  
OUT1  
OUT1*  
VEE  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
OUT6*  
SEL*  
SEL  
Pin Description  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VCC  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
32 pin, 5 mm X 5 mm  
IN*  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
12  
SK1903  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
| OUT - OUT* |  
(OUT + OUT*) / 2  
ISINK  
600  
VCC - 1.5  
4
700  
VCC -1.3  
6
mV  
V
mA  
VCC - 1.1  
7.5  
Power Supply  
Power Supply Current  
IEE  
265  
mA  
Test Conditions: Outputs Unterminated.  
AC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
t
20  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC -2.0V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
13  
www.semtech.com  
SK1904  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1904 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
3.3V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1904 outputs are 50W with source and sink  
capability, optimized for:  
Point to point, series terminated, timing  
critical lines  
Output Option  
50W Source / Sink  
VGG  
Functional Block Diagram  
50  
OUT  
50Ω  
*
OUT  
OUT0  
OUT0*  
10 mA  
VEE  
10 mA  
OUT1  
VEE  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
OUT6*  
Pin Description  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VCC  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
32 pin, 5 mm X 5 mm  
TQFP Package  
VCC  
Revision 1/October 25, 2001  
www.semtech.com  
14  
SK1904  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
(OUT + OUT*) / 2  
ISINK  
600  
VCC - 1.4  
7.5  
700  
VCC -1.2  
10  
mV  
V
mA  
W
VCC - 1.0  
13  
ROUT  
40  
50  
60  
Power Supply  
Power Supply Current  
IEE  
355  
mA  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(V - V = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
t
20  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
o
ps / C  
DTpd /DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC -2.0V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
15  
www.semtech.com  
SK1925  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1925 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. It is also capable of receiving inputs of  
any technology or voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
Anything to PECL Translation  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1925 has open emitter PECL outputs.  
Target applications:  
High speed clock / data lines  
that require translation  
Multiple destination (daisy chain)  
applications  
Output Option  
Open Emitter  
VCC  
Functional Block Diagram  
OUT  
OUT0  
OUT*  
OUT0*  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
Pin Description  
CLK*  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
VCC  
SEL  
SEL*  
CLK  
CLK*  
IN  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
VCC  
32 pin, 5 mm X 5 mm  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
16  
SK1925  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V = 3.0V to 3.6V; V = -3.6V to -3.0V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC -0.2  
V
V
(IN - IN*, CLK - CLK*, SEL -SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
| OUT -OUT* |  
600  
VCC -1.5  
700  
VCC -1.3  
mV  
V
Output Common Mode Range  
(OUT + OUT*) / 2  
VCC -1.1  
170  
Power Supply  
Power Supply Current  
IEE  
mA  
Test Conditions: Outputs terminated with 50W to VCC 2V.  
AC Characteristics  
(V = 3.0V to 3.6V; V = - 3.6V to - 3.0V; T = 0oC to 70oC)  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
o
ps / C  
DTpd /DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VCC -2.0V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
17  
www.semtech.com  
SK1926  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1926 is an extremely fast, stable and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an upredictable  
output pulse. It is also capable of receiving inputs of  
any technology or voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
Anything to ECL Translation  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1926 has standard open emitter ECL outputs.  
Target applications:  
High speed clock / data lines  
that require translation  
Multiple destination (daisy chain)  
applications  
Output Option  
Open Emitter  
VGG  
Functional Block Diagram  
OUT0  
OUT  
OUT0*  
OUT*  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
Pin Description  
CLK*  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
VGG  
Package Information  
SEL  
SEL*  
CLK  
CLK*  
IN  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
32 pin, 5 mm X 5 mm  
IN*  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
18  
SK1926  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V = - 0.1V to 2.0V; V = 2.0V to 3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC -0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
| OUT - OUT* |  
(OUT + OUT*) / 2  
600  
VGG -1.5  
700  
VGG - 1.3  
mV  
V
VGG -1.1  
Power Supply  
Power Supply Current  
IEE  
ICC  
170  
70  
mA  
mA  
Test Conditions: Outputs terminated with 50W to VGG 2V.  
AC Characteristics  
(V = - 0.1V to 2.0V; V = 2.0V to3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<2  
175  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs terminated with 50W to VGG -2.0V.  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
19  
www.semtech.com  
SK1927  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1927 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an upredictable  
output pulse. It is also capable of receiving inputs of  
any technology or voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
Anything to PECL Translation  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1927 uses 50W outputs with source /sink  
capability, and is optimized for:  
High speed clock / data lines  
that require translation  
Output Option  
Point to point, double termination  
applications  
50W Source / Sink  
VCC  
Functional Block Diagram  
50  
OUT  
50Ω  
*
OUT  
OUT0  
6 mA  
VEE  
6 mA  
OUT0*  
VEE  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
Pin Description  
CLK*  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VCC  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
32 pin, 5 mm X 5 mm  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
20  
SK1927  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(VCC = 3.0V to 3.6V; VEE = -3.6 to -3.0V; TA = 0oC to 70oC)  
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
|VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
IIH  
IIL  
-5  
-6  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
(OUT + OUT*) / 2  
ISINK  
600  
VCC - 1.4  
4
700  
VCC -1.2  
6
mV  
V
mA  
W
VCC - 1.0  
7.5  
ROUT  
40  
50  
60  
Power Supply  
Power Supply Current  
IEE  
265  
mA  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(VCC = 3.0V to 3.6V; VEE = -3.6 to -3.0V; TA = 0oC to 70oC)  
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
490  
300  
300  
690  
500  
500  
890  
700  
700  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
175  
ps  
ps / oC  
DTpd / DT  
AC TEST CONDITIONS: Outputs are terminated with 50W to VCC-2.0V  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
21  
www.semtech.com  
SK1928  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1928 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an upredictable  
output pulse. It is also capable of receiving inputs of  
any technology and voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
Anything to ECL Translation  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1928 has 50W outputs with source /sink  
capability, and is optimized for:  
High speed clock / data lines that  
require translation  
Output Option  
Point to point, double termination  
applications  
50W Source / Sink  
VGG  
Functional Block Diagram  
50  
OUT  
50Ω  
*
OUT  
6 mA  
VEE  
6 mA  
OUT0  
OUT0*  
VEE  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
Pin Description  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VGG  
Package Information  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
32 pin, 5 mm X 5 mm  
IN*  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
22  
SK1928  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V = - 0.1V to 2.0V; V = 2.0V to 3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC -0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
600  
700  
VGG -1.2  
6
mV  
V
mA  
W
(OUT + OUT*) / 2 VGG - 1.4  
VGG - 1.0  
7.5  
ISINK  
ROUT  
4
40  
50  
60  
Power Supply  
IEE  
ICC  
310  
70  
mA  
mA  
Power Supply Current  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(V = - 0.1V to 2.0V; V = 2.0V to 3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
460  
300  
300  
780  
600  
600  
1100  
900  
900  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<2  
300  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs are terminated with 50W to VGG -2.0V  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
23  
www.semtech.com  
SK1929  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
The SK1929 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an upredictable  
output pulse. It is also capable of receiving inputs of  
any technology and voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
1:9 Clock/Data Driver  
3 GHz Fmax  
Anything to PECL Translation  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1929 uses 50W outputs with source /sink  
capability, and is optimized for:  
High speed clock / data lines  
that require translation  
Output Option  
Point to point, series termination  
applications  
50W Source / Sink  
VCC  
50  
OUT  
50Ω  
Functional Block Diagram  
*
OUT  
10 mA  
VEE  
10 mA  
OUT0  
OUT0*  
VEE  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
Pin Description  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VCC  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
32 pin, 5 mm X 5 mm  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
24  
SK1929  
Anything to PECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V = 3.0V to 3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
CC  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
(OUT + OUT*) / 2  
ISINK  
600  
VCC - 1.4  
7.5  
700  
VCC -1.2  
10  
mV  
V
mA  
W
VCC - 1.0  
13  
ROUT  
40  
50  
60  
Power Supply  
Power Supply Current  
IEE  
320  
mA  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(V = 3.0V to 3.6V; VEE = -3.6V to -3.0V; T = 0oC to 70oC)  
CC  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
490  
300  
300  
690  
500  
500  
890  
700  
700  
ps  
ps  
ps  
Channel to Channel Skew  
t
35  
ps  
GHz  
ps  
SKEW  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
Fmax  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<2  
200  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs are terminated with 50W to VCC-2.0V  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
25  
www.semtech.com  
SK1930  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
1:9 Clock / Data Driver  
3 GHz Fmax  
Anything to ECL Translation  
Application note (AN 1001) for ease of  
design-ins  
The SK1930 is an extremely fast, stable and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an upredictable  
output pulse. It is also capable of receiving inputs of  
any technology or voltage level. The D - flip-flop is  
triggered on the falling edge of the clock.  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1930 uses 50W outputs with source /sink  
capability, and is optimized for:  
High speed clock / data lines that  
require translation  
Point to point, series termination  
applications  
Output Option  
50W Source / Sink  
Functional Block Diagram  
VGG  
OUT0  
50  
OUT  
50Ω  
OUT0*  
*
OUT  
OUT1  
OUT1*  
10 mA  
VEE  
10 mA  
VEE  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
Pin Description  
OUT6  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
SEL  
SEL*  
CLK  
CLK*  
IN  
VGG  
Package Information  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
32 pin, 5 mm X 5 mm  
IN*  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
26  
SK1930  
Anything to ECL Translator  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V = -0.1V to 2.0V; V = 2.0V to 3.6V; V = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
EE  
A
Parameter  
Inputs  
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC - 0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Digital Output Voltage  
Output Common Mode Range  
Internal Current Source  
Output Impedance  
| OUT - OUT* |  
600  
700  
mV  
V
mA  
W
(OUT + OUT*) / 2 VGG - 1.4  
VGG -1.2  
10  
VGG - 1.0  
13  
ISINK  
ROUT  
7.5  
40  
50  
60  
Power Supply  
Power Supply Current  
IEE  
ICC  
395  
70  
mA  
mA  
Test Conditions: Outputs unterminated.  
AC Characteristics  
(V = -0.1V to 2.0V; V = 2.0V to 3.6V; V = -3.6V to -3.0V; T = 0oC to 70oC)  
GG  
CC  
EE  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
460  
300  
300  
780  
600  
600  
1100  
900  
900  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<2  
300  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs are terminated with 50W to VGG -2.0V  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
27  
www.semtech.com  
SK1999  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Description  
Features  
1:9 Clock/Data Driver  
3 GHz Fmax  
The SK1999 is an extremely fast, stable, and accurate  
low skew 1:9 clock / signal distributor featuring a  
synchronous enable, which allows the outputs to be  
turned off and on without the risk of an unpredictable  
output pulse. The D - flip-flop is triggered on the falling  
edge of the clock.  
3.3V / 5.2V Compatible  
Application note (AN 1001) for ease of  
design-ins  
Available in 32 pin, 5mm X5mm, TQFP  
Package  
The SK1999 has open collector (CML) outputs, targeted  
for:  
Ultra high speed applications  
Adjustable common mode levels at the  
destination.  
Output Options  
Open Collector  
OUT  
OUT*  
Functional Block Diagram  
OUT0  
OUT0*  
12 mA  
VEE  
OUT1  
OUT1*  
OUT2  
OUT2*  
OUT3  
OUT3*  
IN  
D
Q
OUT4  
D* Q*  
0
1
IN*  
OUT4*  
OUT5  
OUT5*  
CLK  
CLK*  
OUT6  
Pin Description  
OUT6*  
SEL*  
SEL  
OUT7  
OUT7*  
OUT8  
OUT8*  
VEE  
VCC  
SEL  
SEL*  
CLK  
CLK*  
IN  
OUT3*  
OUT3  
OUT4  
OUT4*  
OUT5*  
OUT5  
VEE  
Package Information  
IN*  
32 pin, 5 mm X 5 mm  
VCC  
TQFP Package  
Revision 1/October 25, 2001  
www.semtech.com  
28  
SK1999  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
DC Characteristics  
(V - VEE = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
Parameter  
Inputs  
A
Symbol  
Min  
Typ  
Max  
Units  
Input High  
Input Low  
VIH  
VIL  
VEE + 2.0  
VEE  
VCC  
VCC -0.2  
V
V
(IN - IN*, CLK - CLK*, SEL - SEL*)  
Differential Input Voltage  
| VIH - VIL |  
0.2  
4.3  
V
Timing Inputs (CLK / CLK*)  
Input High Current  
Input Low Current  
-5  
-6  
IIH  
IIL  
+30  
+6  
µA  
µA  
Functional Inputs (IN / IN*, SEL / SEL*)  
Input Current  
IIH, IIL  
-500  
+500  
µA  
Outputs  
Output Current High  
Output Current Low  
IOZ  
IOL  
-500  
9
0
12  
+500  
15  
µA  
mA  
Power Supply  
Power Supply Current  
IEE  
185  
230  
mA  
Test Conditions: Outputs terminated with 50W to VCC.  
AC Characteristics  
(V - VEE = 3.0V to 5.5V; T = 0oC to 70oC)  
CC  
A
Parameter  
Symbol  
Min  
Typ  
Max  
Units  
High Performance Option  
Propagation Delay  
CLK to OUT (SEL = 0)  
CLK to OUT (SEL = 1)  
SEL to OUT  
Tpd  
Tpd  
Tpd  
485  
300  
300  
630  
450  
450  
785  
600  
600  
ps  
ps  
ps  
Channel to Channel Skew  
tSKEW  
Fmax  
35  
ps  
GHz  
ps  
Maximum Operating Frequency (Note 1)  
Minimum Pulse Width (Note 1)  
3.0  
PW min  
250  
IN to CLK  
Set Up Time  
Hold Time  
Ts  
Th  
100  
100  
ps  
ps  
Output Rise and Fall Times (20% / 80%) (Note 1)  
Temperature Coefficient (Note 1)  
Tr / Tf  
125  
<1  
250  
ps  
o
ps / C  
DTpd / DT  
AC TEST CONDITIONS: Outputs are terminated with 50W to VCC  
Note 1: Guaranteed by characterization. Not production tested.  
Revision 1/October 25, 2001  
29  
www.semtech.com  
SK19XX Family  
1:9 Signal Distribution  
HIGH-PERFORMANCE PRODUCTS  
Ordering Information  
Ordering  
Code  
Temperature  
Range  
Package ID  
32-TQFP  
SK1900  
SK1901  
SK1902  
SK1903  
SK1904  
SK1925  
SK1926  
SK1927  
SK1928  
SK1929  
SK1930  
SK1999  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
Commercial  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
32-TQFP  
5 x 5 mm  
Notes:  
1.  
For Tape and Reel, add the letter Tat the end of Ordering Code.  
2.  
For Tape and Reel information, see HPP Part Ordering Information Data  
Contact Information  
Semtech Corporation  
High-Performance Products Division  
Division Headquarters  
10021 Willow Creek Road  
San Diego, CA 92131  
Phone: (858) 695-1808  
Marketing Group  
1111 Comstock Street  
Santa Clara, CA 95054  
Phone: (408) 566-8776  
FAX:  
(858) 695-2633  
FAX: (408) 727-8994  
Revision 1/October 25, 2001  
www.semtech.com  
30  

相关型号:

SK1928ATFT

Clock Driver, ECL, PQFP32
SEMTECH

SK1929

1:9 Signal Distribution
SEMTECH

SK1929ATF

Clock Driver, ECL, PQFP32
SEMTECH

SK1929ATFT

Clock Driver, ECL, PQFP32
SEMTECH

SK1929T

Low Skew Clock Driver, 9 True Output(s), 0 Inverted Output(s), PQFP32, 5 X 5 MM, TQFP-32
SEMTECH

SK1930

1:9 Signal Distribution
SEMTECH

SK1930ATF

Clock Driver, ECL, PQFP32
SEMTECH

SK1999

1:9 Signal Distribution
SEMTECH

SK1999ATF

暂无描述
SEMTECH

SK1999ATFT

暂无描述
SEMTECH

SK1999T

Low Skew Clock Driver, 9 True Output(s), 0 Inverted Output(s), PQFP32, 5 X 5 MM, TQFP-32
SEMTECH

SK19B

SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
PACELEADER