AK8160BV2 Datasheet, PDF (8/16 Pages) Asahi Kasei Microsystems – Low Power & Low Jitter Clock Generator for PCI Express

[AK8160BV2]
AC Characteristics (except Differential Output)
All specifications at VDD: 3.0V to 3.6V, Ta: -40 to +105C, 25MHz Crystal, unless otherwise noted
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Crystal Clock Frequency
F_{in_xo}
XIN pin
XOUT pin
25.000
MHz
Oscillation Accuracy
F_accuracy
REFOUT pin (1)
-30
0
+30
ppm
External Clock Frequency
F_{in_ext}
XIN pin (2)
25.000
MHz
Input Clock Voltage Swing
V_{swing_ext}
XIN pin (2)
1
VDD
Vpp
Input Clock Duty Cycle
T_extindc
XIN pin (2)
50
%
Output Frequency
F_osc
REFOUT pin
25.000
MHz
Output Rising and Falling
T_RF
REFOUT pin (3)
1.8
5.0
ns
Output Clock Duty Cycle
T_{outdc_xtal} (4) REFOUT pin
45
50
T_{outdc_ext} (5) REFOUT pin
40
50
55
%
60
%
Cycle to Cycle Jitter
Jit_c2c
REFOUT pin (6)
23
48
ps
Output Lock Time
T_lock
REFOUT pin (7)
0.5
2
ms
Note:
(1) Specification of Frequency Accuracy is measured by connecting the standard 25MHz crystal unit for
part number XRCGB25M000F3M00R0 of Murata Manufacturing Co., Ltd. on page 11.
This Output Clock Frequency Accuracy does not include accuracy of crystal unit.
Total output clock frequency accuracy could be up to “Output Clock Frequency Accuracy” +
“Crystal unit accuracy”.
(2) Use Case of External Clock Input
(3) Transition time between 0.2VDD and 0.8VDD
(4) When the standard 25MHz Crystal Unit is connected.
(5) When the Duty Cycle of External Clock Input is 50%.
(6) 1σ in 10000 sampling or more
(7) Transition time to settle output into ±0.1% of specified frequency after escaping power down mode.
(REFOUT_OE pin = PCIE0_OE pin = PCIE1_OE pin = ‘L’).
014003471-E-00
-8-
2014/06