pef22504 Infineon Technologies Corporation, pef22504 Datasheet - Page 174

• Manufacturer Part Number: pef22504
• Description: Quad E1/t1/j1 Line Interface Component For Long- And Short-haul Applications Pef 22504 E, Pef 22504 Ht, Version 2.1
• Manufacturer: Infineon Technologies Corporation

5. To bring the “characteristic E1 frequency”
is necessary:
PHD_E1 = round (12288 x { [PHSN_E1 + (PHSX_E1 / 6)] - [
To bring the “characteristic T1 frequency”
necessary:
PHD_T1 = round (12288 x { [PHSN_T1 + (PHSX_T1 / 6)] - [
Example:
PLL_N = 33; PLL_M = 0 :
PHSN_E1 = 8; PHSN_E1 = 2:
PHD_E1 = -2048:
Table 49
fMCLK [MHz] GCM1
1.5440
2.0480
8.1920
16.3840
Data Sheet
f
MCLK
Clock Mode Register Settings for E1 or T1/J1
00
00
00
00
= 2.048 MHz
H
H
H
H
f
outE1
= 32.768 MHz
f
PLL
GCM2
15
18
18
18
H
H
H
H
= 278.528 MHz
f
RX_E1
= 33.42 MHz
GCM3
00
FB
FB
FB
f
H
outT1
H
H
H
f
outE1
exact to 16 x
exact to 16 x
GCM4
08
0B
0B
0B
174
H
H
H
H
f
f
f
DATA_T1
pll
pll
f
DATA_E1
/ (16 x
/ (16 x
GCM5
00
00
00
01
H
H
H
H
= 24.704 MHz a correction value PHD_T1 is
= 32.7680 MHz a correction value PHD_E1
f
f
DATA_T1
DATA_E1
GCM6
3F
2F
0B
0B
)] }).
)] }).
H
H
H
H
GCM7
9C
DB
DB
DB
Register Description
Rev. 1.3, 2006-01-25
H
H
H
H
QuadLIU
PEF 22504
GCM8
DF
DF
DF
DF
H
H
H
H
TM