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SL28PCIe16
DOC#: SP-AP-0790 (Rev. 0.3)
Page 2 of 12
32-QFN Pin Definitions
EProClock Programmable Technology
EProClock is the world’s first non-volatile programmable
clock. The EProClock technology allows board designer to
promptly achieve optimum compliance and clock signal
integrity; historically, attainable typically through device and/or
board redesigns.
EProClock technology can be configured through SMBus or
hard coded.
Features:
- > 4000 bits of configurations
- Can be configured through SMBus or hard coded
- Custom frequency sets
- Differential skew control on true or compliment or both
- Differential duty cycle control on true or compliment or both
- Differential amplitude control
- Differential and single-ended slew rate control
- Program Internal or External series resistor on single-ended
clocks
- Program different spread profiles
- Program different spread modulation rate
Pin No.
Name
Type
Description
1
VDD_SRC
PWR 3.3V Power Supply
2
VDD_SRC
PWR 3.3V Power Supply
3
NC
No Connect.
4
VSS
GND
Ground
5
VSS
GND
Ground
6
SRC0
O, DIF 100MHz True differential serial reference clock
7
SRC0#
O, DIF 100MHz Complement differential serial reference clock
8
VDD_SRC
PWR 3.3V Power Supply
9
SRC1
O, DIF 100MHz True differential serial reference clock
10
SRC1#
O, DIF 100MHz Complement differential serial reference clock
11
SRC2
O, DIF 100MHz True differential serial reference clock
12
SRC2#
O, DIF 100MHz Complement differential serial reference clock
13
VSS_SRC
GND
Ground
14
VDD_SRC
PWR 3.3V Power Supply
15
SRC3#
O, DIF 100MHz Complement differential serial reference clock
16
SRC3
O, DIF 100MHz True differential serial reference clock
17
SRC4#
O, DIF 100MHz Complement differential serial reference clock
18
SRC4
O, DIF 100MHz True differential serial reference clock
19
VDD_SRC
PWR 3.3V Power Supply
20
SRC5#
O, DIF 100MHz Complement differential serial reference clock
21
SRC5
O, DIF 100MHz True differential serial reference clock
22
VSS_SRC
GND
Ground
23
SCLK
I
SMBus compatible SCLOCK
24
SDATA
I/O
SMBus compatible SDATA
25
XOUT
O
25.00MHz Crystal output, Float XOUT if using only CLKIN (Clock input)
26
XIN / CLKIN
I
25.00MHz Crystal input or 3.3V, 25MHz Clock Input
27
VSS_CORE
GND
Ground
28
NC
No Connect.
29
VDD_CORE
PWR 3.3V Power Supply
30
VDD_SRC
PWR 3.3V Power Supply
31
NC
No Connect.
32
VSS_SRC
GND
Ground