ICS9DB803DI Datasheet, PDF (6/21 Pages) Integrated Device Technology – Eight Output Differential Buffer for PCIe Gen 2

ICS9DB803DI
Eight Output Differential Buffer for PCIe for Gen 2
Pin Description for OE_INV = 1
PIN #
PIN NAME PIN TYPE
25 GND
PWR Ground pin.
DESCRIPTION
26 PD
27 DIF_STOP
28 HIGH_BW#
29 DIF_4#
30 DIF_4
IN
IN
PWR
OUT
OUT
Asynchronous active high input pin used to power down the device.
The internal clocks are disabled and the VCO is stopped.
Active High input to stop differential output clocks.
3.3V input for selecting PLL Band Width
0 = High, 1= Low
0.7V differential complement clock output
0.7V differential true clock output
31 VDD
32 GND
33 DIF_5#
34 DIF_5
35 OE5#
36 OE6#
37 DIF_6#
38 DIF_6
PWR
PWR
OUT
OUT
IN
IN
OUT
OUT
Power supply, nominal 3.3V
Ground pin.
0.7V differential complement clock output
0.7V differential true clock output
Active low input for enabling DIF pair 5.
1 = tri-state outputs, 0 = enable outputs
Active low input for enabling DIF pair 6.
1 = tri-state outputs, 0 = enable outputs
0.7V differential complement clock output
0.7V differential true clock output
39 VDD
40 OE_INV
41 DIF_7#
42 DIF_7
43 OE4#
44 OE7#
45 LOCK
46 IREF
47 GNDA
48 VDDA
PWR
IN
OUT
OUT
IN
IN
OUT
IN
PWR
PWR
Power supply, nominal 3.3V
This latched input selects the polarity of the OE pins.
0 = OE pins active high, 1 = OE pins active low (OE#)
0.7V differential complement clock output
0.7V differential true clock output
Active low input for enabling DIF pair 4
1 = tri-state outputs, 0 = enable outputs
Active low input for enabling DIF pair 7.
1 = tri-state outputs, 0 = enable outputs
3.3V output indicating PLL Lock Status. This pin goes high when lock
is achieved.
This pin establishes the reference current for the differential current-
mode output pairs. This pin requires a fixed precision resistor tied to
ground in order to establish the appropriate current. 475 ohms is the
standard value.
Ground pin for the PLL core.
3.3V power for the PLL core.
IDT^TM/ICS^TM Eight Output Differential Buffer for PCIe Gen 2
6
ICS9DB803DI REV A 06/18/08