CMX605P3 CML Microcircuits, CMX605P3 Datasheet - Page 5

• Manufacturer Part Number: CMX605P3
• Description: Digital Line to POTS Interface
• Manufacturer: CML Microcircuits

Digital Line to POTS Interface
2001 Consumer Microcircuits Limited
Notes:
CMX605
Pin No.
I/P
O/P
T/S
This device is capable of detecting and decoding small amplitude signals. To achieve this V
and V
important. It is recommended that the printed circuit board is laid out with a ground plane in the
CMX605 area to provide a low impedance connection between the V
V
D4/P3
BIAS
11
12
13
14
15
16
BIAS
decoupling capacitors.
=
=
=
decoupling and protecting the receive path from extraneous in-band signals are very
OPOUT
Input
Output
3-state Output
OPNIN
Name
V
RING
RXIN
V
BIAS
DD
Signal
Power
Type
O/P
O/P
O/P
I/P
I/P
An internally generated bias voltage of V
except when the device has been reset, V
will discharge to V
V
pins.
The input to the DTMF decoder, internally
biased at V
The inverting input to the uncommitted
amplifier.
The output of the uncommitted amplifier.
The squarewave output of the Ringing Signal
generator.
The positive supply rail. Levels and thresholds
within the device are proportional to this
voltage. It should be decoupled to V
capacitor mounted close to the device pins.
SS
5
by a capacitor mounted close to the device
DD
/2. It should be ac coupled.
Description
SS.
It should be decoupled to
SS
SS
pin and the V
by a
DD
BIAS
/2,
CMX605
DD
D/605/6
and
DD