9DBU0231 Datasheet, PDF (3/17 Pages) Integrated Circuit Systems – slew rate for each output

9DBU0231 DATASHEET
Pin Descriptions
Pin#
Pin Name
Pin Type
Description
Complement clock of differential feedback. The feedback output
1 FB_DNC#
DNC and feedback input are connected internally on this pin. Do not
connect anything to this pin.
2 VDDR1.5
PWR ^{1.5V power for differential input clock (receiver). This VDD should}
be treated as an Analog power rail and filtered appropriately.
3 CLK_IN
IN True Input for differential reference clock.
4 CLK_IN#
IN Complementary Input for differential reference clock.
5 GNDR
GND Analog Ground pin for the differential input (receiver)
6 GNDDIG
GND Ground pin for digital circuitry
7 VDDDIG1.5
PWR 1.5V digital power (dirty power)
8 SCLK_3.3
IN Clock pin of SMBus circuitry, 3.3V tolerant.
9 SDATA_3.3
I/O Data pin for SMBus circuitry, 3.3V tolerant.
10 GND
GND Ground pin.
11 VDDO1.5
PWR Power supply for outputs, nominally 1.5V.
Active low input for enabling DIF pair 0. This pin has an internal pull-
12 vOE0#
IN down.
1 =disable outputs, 0 = enable outputs
13 DIF0
OUT Differential true clock output
14 DIF0#
OUT Differential Complementary clock output
15 GNDA
GND Ground pin for the PLL core.
16 VDDA1.5
PWR 1.5V power for the PLL core.
17 DIF1
OUT Differential true clock output
18 DIF1#
OUT Differential Complementary clock output
Active low input for enabling DIF pair 1. This pin has an internal pull-
19 vOE1#
IN down.
1 =disable outputs, 0 = enable outputs
20 VDDO1.5
PWR Power supply for outputs, nominally 1.5V.
21 GND
GND Ground pin.
Input notifies device to sample latched inputs and start up on first
22 ^CKPWRGD_PD#
IN
high assertion. Low enters Power Down Mode, subsequent high
assertions exit Power Down Mode. This pin has internal pull-up
resistor.
23 ^vHIBW_BYPM_LOBW# ^{LATCHED Trilevel input to select High BW, Bypass or Low BW mode.}
IN See PLL Operating Mode Table for Details.
True clock of differential feedback. The feedback output and
24 FB_DNC
DNC feedback input are connected internally on this pin. Do not connect
anything to this pin.
25 ePad
GND Connect epad to ground.
NOTE: DNC indicates Do Not Connect anything to this pin.
REVISION D 04/22/15
3
2 O/P 1.5V PCIE GEN1-2-3 ZDB/FOB