9DB106 Datasheet, PDF (3/14 Pages) Integrated Device Technology – Six Output Differential Buffer for PCIe Gen 2

9DB106
Six Output Differential Buffer for PCIe Gen 2
Pin Description
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
PIN NAME
PLL_BW
CLK_INT
CLK_INC
vCLKREQ1#
PCIEXT0
PCIEXC0
VDD
GND
PCIEXT1
PCIEXC1
PCIEXT2
PCIEXC2
VDD
SMBDAT
SMBCLK
VDD
PCIEXC3
PCIEXT3
PCIEXC4
PCIEXT4
GND
VDD
PCIEXC5
PCIEXT5
vCLKREQ4#
PIN TYPE
IN
IN
IN
IN
OUT
OUT
PWR
IN
OUT
OUT
OUT
OUT
PWR
I/O
IN
PWR
OUT
OUT
OUT
OUT
PWR
PWR
OUT
OUT
IN
DESCRIPTION
3.3V input for selecting PLL Band Width
0 = low, 1= high
True Input for differential reference clock.
Complementary Input for differential reference clock.
Output enable for PCI Express output pair 1.
0 = enabled, 1 =disabled
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
Power supply, nominal 3.3V
Ground pin.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
Power supply, nominal 3.3V
Data pin of SMBUS circuitry, 5V tolerant
Clock pin of SMBUS circuitry, 5V tolerant
Power supply, nominal 3.3V
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Ground pin.
Power supply, nominal 3.3V
Complementary clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Output enable for PCI Express output pair 4.
0 = enabled, 1 =disabled
26
IREF
OUT
This pin establishes the reference for the differential current-mode
output pairs. It requires a fixed precision resistor to ground.
475ohm is the standard value for 100ohm differential impedance.
Other impedances require different values. See data sheet.
27
GNDA
28
VDDA
PWR
PWR
Ground pin for the PLL core.
3.3V power for the PLL core.
Note:
Pins preceeded by ' v ' have internal 120K ohm pull down resistors
IDT^® Six Output Differential Buffer for PCIe Gen 2
3
9DB106 REV K 04/20/11