CMX625D5 CML Microcircuits, CMX625D5 Datasheet - Page 30

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

ISDN TA POTS Interface
Notes:
Tx Output Buffer
Buffer output signal swing;
Power-Up Timing
Device reset to reliable signal at TXO, TXON,
RING, SPM or TONEFSK output pins
2000 Consumer Microcircuits Limited
Load greater than 500
6.
7.
8.
9.
10. Over the range V
11. Represents a psophometrically weighted measurement.
12. For each of the TXON (if enabled) and TXO pins,
Referenced to DTMF tone of lower amplitude.
Bandwidth limited: 0 to 3.4kHz Gaussian Noise.
See filter response, Figure 12.
SPM has a soft rise and fall time of about 4ms. The level changes between V
0dBm in 2dB steps, 16 steps per rise and fall. When SPM is disabled, an extra 4ms
falling tail end of signal should be taken into consideration.
load placed between the pin and V
Figure 12 PCM Codec-Filter overall frequency response
DD
= 3.3V to 5.5V at Tamb = 25°C.
(TBA)
30
DD
Notes
Notes
/ 2, for V
12
DD
Min.
Min.
2.2
= 5.0V only.
-
Typ.
Typ.
50.0
-
Max.
Max.
-
-
BIAS
CMX625
D/625/1
and
Vp-p
Unit
Unit
ms