mc145425 Freescale Semiconductor, Inc, mc145425 Datasheet - Page 3

• Manufacturer Part Number: mc145425
• Description: Isdn Universal Digital Loop Transceivers
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
LO1
LO2
V ref
MSI
CCI
CLKOUT
PD
VD
SE
LB
LI
TONE
Mu/A
LO1
LO2
XTL
CCI
V ref
PD
VD
LB
LI
23
22
16
17
12
11
4
5
3
2
23
22
17
18
16
19
12
11
4
5
3
2
+
–
DEMODULATOR
OSC
+
–
DEMODULATOR
MODULATOR
MODULATOR
D2
MC145421 MASTER ISDN BLOCK DIAGRAM
D2
MC145425 SLAVE ISDN BLOCK DIAGRAM
D1
D1
SEQUENCE
B2
CONTROL
8
B1
AND
SEQUENCE
CONTROL
B2
8
AND
B1
2
2
B1
2
8
2
2
B2
8
B1
B2
2
8
8
D1
2
8
8
2
D1
D2
2
B CHANNEL BUFFERS
B CHANNEL BUFFERS
D CHANNEL BUFFERS
D2
D CHANNEL BUFFERS
B CHANNEL BUFFERS
B CHANNEL BUFFERS
D CHANNEL BUFFERS
D CHANNEL BUFFERS
D2
D1
D1
B2
B1
B1
B2
D2
D2
D1
B2
B1
D2
D1
B1
B2
MC145421 MC145425
20
21
19
10
18
13
15
14
7
6
8
9
21
10
20
13
15
14
7
6
8
9
D2I
D1I
RE2
Rx
RE1
D2O
DCLK
D1O
TDC/RDC
Tx
TE1
TE2
D2I
D1I
Rx
D2O
DCLK
D1O
BCLK
Tx
EN1
EN2
3