ICS932S422C Datasheet, PDF (9/21 Pages) Integrated Circuit Systems – PCIe Gen 2 main Clock for Intel-based Servers

Integrated
Circuit
Systems, Inc.
ICS932S422C
Electrical Characteristics - USB48MHz
PARAMETER
Long Accuracy
SYMBOL
ppm
CONDITIONS*
see Tperiod min-max values
Clock period
T_period
48.00MHz output nominal
Output Impedance
R_DSP
V_O = V_DD*(0.5)
Output High Voltage
V_OH
I_OH = -1 mA
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @MIN = 1.0 V
V_OH@MAX = 3.135 V
Output Low Current
I_OL
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
Rise Time
t_{r_USB}
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t_{f_USB}
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
d_t1
V_T = 1.5 V
Group Skew
t_skew
V_T = 1.5 V
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 22Ω
1_{Guaranteed by design and characterization, not 100% tested in production.}
MIN
TYP
-100
20.8313
12
2.4
-29
29
1
1
45
Electrical Characteristics - REF-14.318MHz
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
Long Accuracy
ppm
see Tperiod min-max values
-300
Clock period
T_period
14.318MHz output nominal
69.8270
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @MIN = 1.0 V
V_OH@MAX = 3.135 V
-33
Output Low Current
I_OL
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
30
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5
Skew
t_sk1
V_T = 1.5 V
Duty Cycle
d_t1
V_T = 1.5 V
45
Jitter
t_jcyc-cyc
V_T = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 22Ω (Rs is used in USB48MHz test only)
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz}
Electrical Characteristics - Differential Jitter Parameters
PARAMETER
Symbol
Conditions
Min
TYP
t_jphasePLL
t_jphaseLo
PCIe Gen 1
PCIe Gen 2
10kHz < f < 1.5MHz
Jitter, Phase
t_{j phas eHi gh}
t_{jphFBD1_3.2}
PCIe Gen 2
1.5MHz < f < Nyquist (50MHz)
FBD1 3.2/4G
G
11MHz to 33MHz
t_{jphFBD1_4.0}
FBD1 4.8G
G
11MHz to 33MHz
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%
1_{Guaranteed by design and characterization, not 100% tested in production.}
2_{See http://www.pcisig.com for compelte specs}
1412A—12/10/07
MAX
100
20.8354
55
0.55
-33
27
2
2
55
250
500
UNITS
ppm
ns
Ω
V
V
mA
mA
mA
mA
ns
ns
%
ps
ps
NOTES
1,2
2
1
1
1
1
1
1
1
1
1
1
1
1
MAX
300
69.8550
0.4
-33
38
2
2
500
55
1000
UNITS
ppm
ns
V
V
mA
mA
mA
mA
ns
ns
ps
%
ps
Notes
1,2
2
1
1
1
1
1
1
1
1
1
1
1
Max
Units Notes
86
ps (p-p) 1,2
3
ps (RMS) 1,2
3.1
ps (RMS) 1,2
3 ps (RMS) 1,2
2.5 ps (RMS) 1,2
9