CMX808AE3 CML Microcircuits, CMX808AE3 Datasheet - Page 5

• Manufacturer Part Number: CMX808AE3
• Description: Family Radio CTCSS Type 2 Encoder and Decoder
• Manufacturer: CML Microcircuits

Family Radio CTCSS 'Type 2' Encoder and Decoder
1.3
Pin No.
1999 Consumer Microcircuits Limited
E3
10
11
12
13
14
15
16
17
18
19
20
8
9
Package
Signal List
Notes: I/P = Input
Pin No.
P4
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
8
9
O/P = Output
NC
NC
A/D CAP
NC
V ss
V
RX AMP IN
RX AMP OUT
RX AUDIO OUT
NC
TX AUDIO IN
TX AUDIO OUT
VOLUME IN
TX SUB AUDIO OUT
VOLUME OUT
NC
V
(continued)
BIAS
DD
Name
Signal
Power
Power
Type
O/P
O/P
O/P
O/P
O/P
O/P
O/P
I/P
I/P
I/P
5
) No internal connection. Do not make
) any connection to these pins.
An internal reference voltage for the A to D,
decoupled to V
No internal connection. Do not make any
connection to this pin.
The negative supply rail (ground).
A bias line for the internal circuitry, held at ½
V
capacitor mounted close to the device pins.
The inverting input to the Rx input amplifier.
The output of the Rx input amplifier and the
input to the audio filter section.
Output of the Rx audio filter section.
No internal connection. Do not make any
connection to this pin.
Input to the Tx audio filter section.
Output of the Tx audio filter section.
Input to the audio volume control.
Output of the CTCSS tone generator.
Output of the audio volume control.
No internal connection. Do not make any
connection to this pin.
The positive supply rail. Levels and voltages
are dependent upon this supply. This pin
should be decoupled to V
DD
. This pin must be decoupled by a
SS
Description
by an external capacitor.
SS
by a capacitor.
CMX808A
D/808A/5