CMX625D5 CML Microcircuits, CMX625D5 Datasheet - Page 6

• Manufacturer Part Number: CMX625D5
• Description: ISDN TA POTS Interface
• Manufacturer: CML Microcircuits

ISDN TA POTS Interface
1.4
Note:
2000 Consumer Microcircuits Limited
1.
2.
External Components
R2, R3, C3 and C4 form the gain components for the Rx Input Amplifier. R2 should be
chosen as required by the signal level, using the following formula:
C3 and R2 should be chosen so as not to compromise the low frequency performance.
R4 should be selected to give the desired transmit level.
R1, R3, R5
R2
R4
R6, R7
Resistor ±5%, capacitors ±10% unless otherwise stated.
Figure 2 Recommended External Components
100k
Note 1
Note 2
1.5k
Gain =
6
R3
R2
C1, C2
C3
C4, C5
1.0µF
Note 1
220pF
CMX625
D/625/1