PXB4330 Datasheet, PDF (177/201 Pages) Infineon Technologies AG – ICs for Communications

PXB 4330
Electrical Characteristics
7.4
AC Characteristics
T_A = -40 to 85 °C, V_CC = 3.3 V ± 9 %, V_SS = 0 V
All inputs are driven to V_IH = 2.4 V for a logical 1
and to V_IL = 0.4 V for a logical 0
All outputs are measured at V_H = 2.0 V for a logical 1
and at
V_L = 0.8 V for a logical 0
The AC testing input/output waveforms are shown below.
•
VH
VH
Test Points
VL
VL
Device
under
Test
CLOAD = 50 pF max
Figure 7-1 Input/Output Waveform for AC Measurements
ac_int.ds4
Table 7-4 Clock Frequencies
Parameter
Symbol
Core clock
SYSCLK
UTOPIA clock at PHY-side
UTPHYCLK
UTOPIA clock at ATM-side
µP clock¹⁾
UTATMCLK
1) _{Supplied only to external microprocessor}
Limit Values
min.
max.
25
52
f_SYSCLK/2
f_SYSCLK/2
≤ f_SYSCLK
≤ f_SYSCLK
≤ f_SYSCLK
Unit
MHz
MHz
MHz
MHz
Data Sheet
7-177
09.99