ICS9EX21801AKLFT IDT, Integrated Device Technology Inc, ICS9EX21801AKLFT Datasheet - Page 7

• Manufacturer Part Number: ICS9EX21801AKLFT
• Description: IC FANOUT BUFF DIFF 20-VFQFPN
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS9EX21801AKLFT

• Input: *
• Output: Clock
• Frequency - Max: 400MHz
• Voltage - Supply: *
• Operating Temperature: *
• Mounting Type: Surface Mount
• Package / Case: *
• Frequency-max: 400MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 9EX21801AKLFT

IDT
Electrical Characteristics - Skew and Differential Jitter Parameters
T
NOTES:
1. Measured into fixed 2 pF load cap. Input to output skew is measured at the first output edge following the corresponding input.
2. Measured from differential cross-point to differential cross-point
3. All Bypass Mode Input-to-Output specs refer to the timing between an input edge and the specific output edge created by it.
4. This parameter is deterministic for a given device
5. Measured with scope averaging on to find mean value.
6. Long-term variation from nominal of input-to-output skew over temperature and voltage for a single device.
7. This parameter is measured at the outputs of two separate ICS9EX21801 devices driven by a single CK410B+. The ICS9EX21801's must be set to high bandwidth.
Differential phase jitter is the accumulation of the phase jitter not shared by the outputs (eg. not including the affects of spread spectrum). Target ranges of consideration are
agents with BW of 1-22Mhz and 11-33Mhz.
8. t is the period of the input clock
9. Differential spread spectrum tracking error is the difference in spread spectrum tracking between two ICS9EX21801 devices This parameter is measured at the outputs of
two separate ICS9EX21801 devices driven by a single CK410B+ in Spread Spectrum mode. The ICS9EX21801's must be set to high bandwidth. The spread spectrum
characteristics are: maximum of 0.5%, 30-33KHz modulation frequency, linear profile.
10. This parameter is an absolute value. It is not a double-sided figure.
A
CLK_IN, DIF [x:0]
CLK_IN, DIF [x:0]
CLK_IN, DIF[x:0]
CLK_IN, DIF[x:0]
CLK_IN, DIF[x:0]
ICS9EX21801A
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
TM
= 0 - 70°C; Supply Voltage V
DIF[17:0]
DIF[17:0]
DIF[17:0]
18 Output PCIe G2/QPI Differential Buffer with 2:1 input mux
Group
Parameter
t
t
SPO_PLL100M
SPO_PLL133M
t
∆t
t
∆t
SSTERROR
SKEW_A19
t
PD_BYP
SPO_PLL
PD_BYP
t
JPH
DD
Input-to-Output Skew in PLL mode (1:1 only),
nominal value @ 25°C, 3.3V, 100MHz
Input-to-Output Skew in PLL mode (1:1 only),
nominal value @ 25°C, 3.3V, 133MHz
Input-to-Output Skew in Bypass mode (1:1 only),
nominal value @ 25°C, 3.3V
Input-to-Output Skew Variation in PLL mode
(over specified voltage / temperature operating ranges)
Input-to-Output Skew Variation in Bypass mode
(over specified voltage / temperature operating ranges)
Output-to-Output Skew across all 18 outputs
(Common to Bypass and PLL mode - all outputs at same gear)
Differential Phase Jitter (RMS Value)
Differential Spread Spectrum Tracking Error (peak to peak)
= 3.3 V +/-5%
Description
7
1100
Min
950
4
1000 1125
1125 1175
|250| |350|
|800| |900|
TYP
100
4.7
20
2
Max Units
150
5.2
10
80
1463B — 01/20/10
Datasheet
ps
ps
ns
ps
ps
ps
ps
ps
1,2,4,5,6,
1,2,3,4,5,
1,2,4,5,8
1,2,4,5,8
1,2,3,5
Notes
1,2,3
1,4,7
1,4,9
6,10
10