Datasheet
PROGRAMMABLE TIMING CONTROL HUB FOR
INTEL BASED SYSTEMS
ICS9LRS3187B
Recommended Application:
Features/Benefits:
CK505 version 1.1 clock, with fully integrated voltage regulators
and series resistors
•
Supports spread spectrum modulation, 0 to -0.5%
down spread for CPU and SRC clocks
•
Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
•
Available in commercial (0 to +70°C) and industrial
(-40 to +85°C) temperature ranges
•
Meets PCIe Gen2 specifications
Output Features:
2 - CPU differential low power push-pull pairs
1 - SRC differential low power push-pull pair
1 - SATA differential low power push-pull pair
1 - DOT differential low power push-pull pair
1 - REF, able to drive 3 loads, 14.318MHz
1 - 27MHz_SS/non_SS single-ended output pair
Key Specifications:
CLKPWRGD/PD#_3.3
GNDREF
CPU outputs cycle-cycle jitter 2.0V then use TEST_SEL
If power-up w/ Vlow Vth input
TEST_MODE is a real time input
If TEST_SEL HW pin is 0 during power-up,
test mode can be invoked through B9b3.
If test mode is invoked by B9b3, only B9b4
is used to select HI-Z or REF/N
FSLB/TEST_Mode pin is not used.
Cycle power to disable test mode, one shot control
SW
FSLC/
TEST_SEL
HW PIN
FSLB/
TEST_MODE
HW PIN
TEST
ENTRY BIT
B9b3
REF/N or
HI-Z
B9b4
2.0V
>2.0V
>2.0V
X
0
0
1
0
X
X
X
0
0
1
0
OUTPUT
NORMAL
HI-Z
REF/N
REF/N
>2.0V
1
X
1
REF/N
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