Pair Gain Dual SPM Detector
CMX661
1.3
Signal List
Package
P3
Pin No.
1
Signal
Name
XTAL
Type
I/P
The input of the on-chip oscillator for use with a
3.579545MHz Xtal in conjunction with the
XTALN output; circuit components are on-chip.
The inverted output of the on-chip oscillator.
The digital output of the Channel 2 SPM
detector, when enabled. Logic '0' (low) when
tone is detected.
The digital output of the Channel 1 SPM
detector, when enabled. Logic '0' (low) when
tone is detected.
The output of the Channel 1 input amplifier.
See Figures 2 and 3.
The negative input to the Channel 1 input
amplifier. See Figures 2 and 3.
The positive input to the Channel 1 Input
amplifier. See Figures 2 and 3.
The negative supply rail (ground).
The positive input to the Channel 2 input
amplifier. See Figures 2 and 3.
The negative input to the Channel 2 input
amplifier. See Figures 2 and 3.
The output of the Channel 2 input amplifier.
See Figures 2 and 3.
For multi-chip output multiplexing; controls the
state of both Channel 1 and Channel 2 outputs.
When this input is placed high (logic ‘1’) both
outputs are set to a high impedance. When
placed at logic '0' (low) both outputs are
enabled.
The LSB of the two bits which set the 'Will
Decode' bandwidth of the CMX661.
Description
Package
D4
Pin No.
1
2
3
2
3
XTALN
CH2 OP
O/P
O/P
4
4
CH1 OP
O/P
5
5
CH1 AMP OUT
O/P
6
6
CH1 AMP IN (-)
I/P
7
7
CH1 AMP IN (+)
I/P
8
9
8
9
V
SS
CH2 AMP IN (+)
POWER
I/P
10
10
CH2 AMP IN (-)
I/P
11
11
CH2 AMP OUT
O/P
12
12
OP ENABLEN
I/P
13
13
D0
I/P
©
2002 CML Microsystems Plc
4
D/661/3
CMLMICRO [ CML MICROCIRCUITS ]
