DSC557-03 Datasheet, PDF (5/9 Pages) Micrel Semiconductor – Crystal-less Two Output PCIe Gen1/2/3 Clock Generator

DSC557-03
Crystal-less Two Output PCIe Gen1/2/3 Clock Generator
Pin Diagram (14 QFN)
Connection Diagram
(14 QFN Two HCSL Outputs)
OE
NC
NC
VSS
14 13 12
1
11
2
10
3
9
4
8
567
CLK0+
CLK0-
CLK1-
CLK1+
14 QFN 3.2x2.5mm
0.01 uF
+
Enable
-
14 13 12
1
11
2
10
3
9
4
8
567
Ropt
Ropt 22W - 33 W optional
0.01 uF
+
VDD
-
50 W
50 W
CLK0+
CLK0-
CLK1-
CLK1+
50 W
50 W
Pin Description (14 QFN)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
OE
NC
NC
VSS
NC
NC
NC
CLK1+
CLK1-
CLK0-
CLK0+
VDD1
VDD0
NC
Pin
Type
I
NA
NA
Power
NA
NA
NA
O
O
O
O
Power
Power
NA
Description
Output Enable; active high
Ground recommended or leave as a NC
Ground recommended or leave as a NC
Ground
Ground recommended or leave as a NC
Ground recommended or leave as a NC
Ground recommended or leave as a NC
True output of differential pair
Complement output of differential pair
Complement output of differential pair
True output of differential pair
Power Supply for Core and Output 1 (CLK0+/-)
Power Supply for Output 0 (CLK1+/-)
Ground recommended or leave as a NC
_____________________________________________________________________________________________________________________________ _________________
DSC557-03
Page 5
MK-QB-P-D-120917-01-2