Digital Line to POTS Interface
CMX615
SPM Signal Level
Level at SPM pin
Tone frequency accuracy
Tone output distortion
Output Impedance
Notes
4, 6
4,6,8
5
Min.
-1.5
-1.0
-14.0
-
-
Uncommitted Amplifier
Open Loop Gain (I/P = 1mVrms at 100Hz)
Unity Gain Bandwidth
Input Impedance (at 100Hz)
Output Impedance (Open Loop)
Notes
Min.
-
-
10.0
-
Power-Up Timing
Zero-Power to reliable signal at OPOUT, RING,
SPM or TONEFSK output pins.
Notes Min.
-
XTAL/CLOCK Input
'High' Pulse Width
'Low' Pulse Width
Input Impedance (at 100Hz)
Gain (I/P = 1mVrms at 100Hz)
Notes
7
7
Min.
100
100
-
20.0
Notes:
7. Timing for an external input to the XTAL/CLOCK pin.
8. Over the range VDD = 3.0 to 5.5V at Tamb = 25°C.
Typ.
0
0
-
1.2
10.0
Typ.
60.0
5.0
-
10.0
Typ.
50
Typ.
-
-
1.0
-
Max.
1.0
0.5
14.0
-
-
Unit
dBm
dBm
Hz
%
kΩ
Max.
-
-
-
-
Unit
dB
MHz
MΩ
kΩ
Max. Unit
-
ms
Max. Unit
-
ns
-
ns
-
MΩ
-
dB
© 1999 Consumer Microcircuits Limited
23
D/615/4