CMX625P4 CMLMICRO [CML Microcircuits], CMX625P4 Datasheet - Page 6

• Manufacturer Part Number: CMX625P4
• Description: ISDN TA POTS Interface
• Manufacturer: CMLMICRO [CML Microcircuits]

ISDN TA POTS Interface
1.4
Note:
2001 Consumer Microcircuits Limited
IOM -2
Bus
Interface
1. The recommended component values, C3 to C6 and R2 to R5 and tolerances are essential to
2. R6, R7 = 750 with 5V supply. R6, R7 = 470 with 3.3V supply.
External Components
meet the ITU-T Recommendation G.172 filter specification. See figure 12.
TM
R7
R1
V
V
DD
DD
R1, R4
R2, R3
R5
R6, R7
R6
Resistor ±1%, capacitors ±5% unless otherwise stated.
Figure 2 Recommended External Components
TE/NTE
RESET
IRQN
V
DCL
FSC
SA0
SA2
SA1
SS
V
DD
DU
DS
SS
100kΩ
110kΩ
56kΩ
Note 2
10
12
11
2
3
4
5
6
7
8
9
1
CMX625
6
C1, C2
C3
C4, C5
C6
24
23
22
20
19
18
17
16
15
14
13
21
SPM
RING
DAC OUT
TXON
TXO
RXO
RXN
RXP
TXN
TONEFSK
V
V
BIAS
DD
1.0µF
100nF
220pF
22nF
V
BIAS
C5
R2
C1
C4
R4
V
V
R5
R3
C3
DD
SS
C2
Tx In
C6
V
Rx In
SS
CMX625
D/625/2