PXB4219 Datasheet, PDF (247/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

PXB4219 / PXB4220 / PXB4221
Electrical Characteristics
9.6
AC Characteristics
T_A = -40 to 85 °C, V_CC = 3.3 V ± 5%, 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.
Test Levels
V_TH
V_TL
Timing Test
Points
Device
under
Test
C_L
Drive Levels
V_IH
V_IL
Figure 55 Input/Output Waveforms for AC Measurements
9.6.1 Clock and Reset Interface
1
CLOCK
2
CLK52
3
RESET
Figure 56 Clock and Reset Interface Timing Diagram
Table 34 Clock and Reset Interface AC Timing Characteristics
No. Parameter
Limit Values
Unit
Min
Typ
Max
1
T_CLOCK: Period CLOCK
GIM T1:
25,72 40
53,97 ns
others:
1A
F_CLOCK: Frequency CLOCK¹⁾
25,72 40
40,69 ns
Data Sheet
247
2002-05-06