Calling Line Identifier
FX602
1.3
Signal List
Packages
D4 / P3
Pin No.
1
2
3
Name
XTALN
XTAL
RD
Signal
Description
Type
O/P
I/P
I/P (S)
The output of the on-chip Xtal oscillator inverter.
The input to the on-chip Xtal oscillator inverter.
Input to the Ring or Line Polarity Reversal
Detector.
Open-drain output and Schmitt trigger input
forming part of the Ring or Line Polarity Reversal
detector. An external resistor to V
DD
and a
capacitor to V
SS
should be connected to RT to
filter and extend the RD input signal.
The output of the on-chip Input Signal Amplifier
and the input to the Bandpass Filter.
The inverting input to the on-chip Input Signal
Amplifier.
The non-inverting input to the on-chip Input
Signal Amplifier.
Negative supply rail (signal ground).
Internally generated bias voltage, held at V
DD
/2
when the device is not in 'Zero-Power' mode.
Should be decoupled to V
SS
by a capacitor
mounted close to the device pins.
Input used to select the operating mode. See
section 1.5.1.
A high level on this input selects 'Zero-Power'
mode, a low level enables the Input Signal
Amplifier, the Bandpass Filter and either the FSK
or the Tone Alert circuits depending on the
MODE input.
4
RT
BI
5
AOP
BI
6
INV
I/P
7
NINV
I/P
8
9
V
SS
V
BIAS
Power
O/P
10
MODE
I/P (S)
11
ZP
I/P (S)
©
1998 Consumer Microcircuits Limited
4
D/602/7
CMLMICRO [ CML MICROCIRCUITS ]
