9FG830_17 Datasheet, PDF (3/19 Pages) Integrated Device Technology – Eight Output Differential Frequency Generator for PCIe Gen3 and QPI

9FG830
Eight Output Differential Frequency Generator for PCIe Gen3 and QPI
Pin Description
PIN #
1
2
3
4
5
6
PIN NAME
XIN/CLKIN
X2
VDD
GND
REFOUT
vFS2
7
vOE_7
8
DIF_7
9
DIF_7#
10
VDD
11
DIF_6
12
DIF_6#
13
^OE_6
14
VDD
15
GND
16
^OE_5
17
DIF_5
18
DIF_5#
19
VDD
20
DIF_4
21
DIF_4#
22
vOE_4
23
SDATA
24
SCLK
25
DIF_STOP#
26
vSPREAD
PIN TYPE
IN
OUT
PWR
PWR
OUT
IN
IN
OUT
OUT
PWR
OUT
OUT
IN
PWR
PWR
IN
OUT
OUT
PWR
OUT
OUT
IN
I/O
IN
IN
IN
27
^SEL14M_25M# IN
28
vOE_3
29
DIF_3#
30
DIF_3
IN
OUT
OUT
DESCRIPTION
Crystal input or Reference Clock input
Crystal output, Nominally 14.318MHz
Power supply, nominal 3.3V
Ground pin.
Reference Clock output
Frequency select pin. This pin has an internal 120k pull down resistor
Active high input for enabling output 7. This pin has a 120kohm pull down.
0 =disable outputs, 1= enable outputs
0.7V differential true clock output
0.7V differential Complementary clock output
Power supply, nominal 3.3V
0.7V differential true clock output
0.7V differential Complementary clock output
Active high input for enabling output 6. This pin has an internal 120kohm pull up.
0 = disable outputs, 1= enable outputs
Power supply, nominal 3.3V
Ground pin.
Active high input for enabling output 5. This pin has an internal 120kohm pull up.
0 = disable outputs, 1= enable outputs
0.7V differential true clock output
0.7V differential Complementary clock output
Power supply, nominal 3.3V
0.7V differential true clock output
0.7V differential Complementary clock output
Active high input for enabling output 4. This pin as an internal 120kohm pull down.
0 =disable outputs, 1= enable outputs
Data pin for SMBus circuitry, 5V tolerant.
Clock pin of SMBus circuitry, 5V tolerant.
Active low input to stop differential output clocks.
Asynchronous, active high input to enable spread spectrum functionality. This pin has
a 120Kohm pull down resistor.
Select 14.31818 MHz or 25 Mhz input frequency. This pin has an internal 120kohm
pull up resistor.
1 = 14.31818 MHz, 0 = 25 MHz
Active high input for enabling output 3. This pin has an internal 120kohm pull down
resistor.
0 =disable outputs, 1= enable outputs
0.7V differential Complementary clock output
0.7V differential true clock output
IDT^® Eight Output Differential Frequency Generator for PCIe Gen3 and QPI
3
1680E—04/04/17