932SQ426 Datasheet, PDF (14/25 Pages) Integrated Device Technology – 64-pin TSSOP and VFQFPN packages

932SQ426
CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKINGS
Electrical Characteristics - REF
T_A = 0 - 70°C; Supply Voltage V_DD/V_DDA = 3.3 V +/-5%,
PARAMETER
SYMBOL
CONDITIONS
MIN
Output Impedance
R_DSP
V_O = V_DD*(0.5)
12
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
MIN @V_OH = 1.0 V
-33
MAX @V_OH = 3.135 V
Output Low Current
I_OL
MIN @V_OL = 1.95 V
30
MAX @ V_OL = 0.4 V
Clock High Time
T_HIGH
1.5V
27.5
Clock Low Time
T_LOW
1.5V
Edge Rate
t_slewr/f
Rising/Falling edge rate
Duty Cycle
d_t1
V_T = 1.5 V
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
See "Single-ended Test Loads Page" for termination circuits
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{Measured between 0.8V and 2.0V}
27.5
1
45
Clock AC Tolerances
SRC,
NS_ SAS ,
CPU
NS _SR C
PC I
PPM tolerance 100
100
100
Cycle to Cycle Jitter
50
50
500
DOT96
100
250
TYP
1.5
50.5
89
48 MHz
100
350
MAX
55
0.55
-33
38
4
55
1000
UNITS
Ω
V
V
mA
mA
mA
mA
Notes
1
1
1
1
1
1
1
ns
1
ns
1
V/ns 1,2
%
1
ps
1
REF
1 00
1 000
ppm
ps
Clock Periods – Outputs without Spread Spectrum
SSC ON
CPU
SRC ,
NS_SAS,
N S_S RC
PCI
DOT96
4 8MHz
REF
C ente r
Freq.
MHz
100. 00000
100. 00000
33.3 3333
96.0 0000
48.0 0000
14.3 1818
1 Clock
-c2c jitter
A bsPer
M in
9.9 4900
9.9 4900
29.4 9700
10.1 6563
20.4 8125
69.7 8429
1 us
-SSC
Short-Term
Average
M in
Measurement Window
0.1s
0.1 s
0.1 s
- ppm
+ ppm
Long-Term 0 ppm Period Long-Term
Ave rage
Nominal
Average
Min
9. 99900
10.00 000
Ma x
10.00 100
9. 99900
10.00 000
10.00 100
29 .9970 0
10 .4156 3
20 .8312 5
69 .8342 9
30.00 000
10.41 667
20.83 333
69.84 128
30.00 300
10.41 771
20.83 542
69.84 826
1us
+SSC
S hort-Te rm
Average
Max
1 Clock
+c2c jitter Units Notes
AbsPer
Max
10.05100 ns 1,2
10.05100 ns
1,2
30.50300 ns 1,2
10.66771 ns 1,2
21.18542 ns 1,2
69.89826 ns 1,2
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy specifications are guaranteed with the assumption that the REF output is tuned to exactly 14.31818MHz.}
IDT® CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKINGS
14
932SQ426
REV B 070815