78Q2123/F1 Maxim Integrated, 78Q2123/F1 Datasheet - Page 34

• Manufacturer Part Number: 78Q2123/F1
• Description: Ethernet ICs
• Manufacturer: Maxim Integrated

Specifications of 78Q2123/F1

• Rohs: yes

78Q2123/78Q2133 Data Sheet
4.9.1 External XTLP Oscillator Characteristics
Note 1: IEEE 802.3 frequency tolerance ±50 ppm.
34
Parameter
XTLP Input Level
XTLN Input Low
Voltage
XTLP Frequency
XTLP Period
XTLP Duty Cycle
Rise / Fall Time
Absolute Jitter
Symbol
Tclkper
Tr, Tf
Figure 8: External XTLP Oscillator Characteristics
f
See specification for
CIS-type input
See Note 1
See Note 1
Tclkhi / Tclkper
Input signaling
requirements = CIS
XTLP
Condition
T
r
T
T
clkper
clkhi
T
Min
40
f
25.000
Nom
40
Max
0.8
4.0
0.1
60
DS_21x3_001
MHz
Rev. 1.6
Unit
ns
ns
ns
%
V