Call Progress and "Voice" Detector
CMX683
3.
Signal List
TSSOP
Package
E4
Pin No.
1
2
1
XTAL
DIP
Package
P1
Pin No.
Signal
Name
Type
NC
I/P
Description
Reserved for future use. Do not make any
connection to this pin.
The input to the on-chip oscillator, to be used
in conjunction with the XTALN output. An
external crystal only is required. All other
components are on-chip. If the on-chip
oscillator is not used, this pin should be
connected to V
SS
.
The external clock input. Connect the
CONFIG pin to V
DD
to enable this input.
The inverted output of the on-chip oscillator.
Leave unconnected if not used.
A logic 1 applied to this input enables all
detector outputs. A logic 0 will force all
detector outputs to a logic 0.
When a Non Call Progress signal is detected
this output goes to a logic 1. (See Table 1).
When a Call Progress signal is detected this
output goes to a logic 1. (See Table 1).
Reserved for future use. Do not make any
connection to this pin.
Reserved for future use. Do not make any
connection to this pin.
Signal input (which should be ac coupled as
the dc bias on this pin is set internally).
Reserved for future use. Do not make any
connection to this pin.
The negative supply rail (ground).
When a Non Call Progress signal is detected
this output goes to a logic 1. (See Table 1).
Internally generated reference voltage held at
�½V
DD
and available to power external
circuits.
The positive supply rail. This pin should be
decoupled to V
SS
by a capacitor.
Oscillator configuration. Leave unconnected
when using an external crystal. This pin has
an internal pulldown to the V
SS
pin.
NC = No Connection
D/683/1
SOIC
Package
D4
Pin No.
1
2
3
4
5
3
4
5
2
3
CLOCK IN
XTALN
ENABLE
I/P
O/P
I/P
6
7
8
9
10
11
12
13
14
6
7
8
9
10
11
12
13
14
6
7
5
4
VOICE
SLOW
CP
DETECT
O/P
O/P
NC
NC
SIGIN
I/P
NC
V
SS
VOICE
FAST
VREF
Power
O/P
O/P
15
16
15
16
8
V
DD
CONFIG
Power
I/P
Notes:
I/P = Input
O/P = Output
4
©
2002 CML Microsystems Plc
CMLMICRO [ CML MICROCIRCUITS ]
