CMX631AD5 CML Microcircuits, CMX631AD5 Datasheet - Page 5

• Manufacturer Part Number: CMX631AD5
• Description: Low Voltage SPM Detector
• Manufacturer: CML Microcircuits

Low Voltage SPM Detector
3
Recommended External Component Notes:
1998 Consumer Microcircuits Limited
1. When calculating input gain components, for correct operation R1 and R4 should always be
2. For best results, a crystal oscillator design should drive the clock inverter input with signal levels of at
3. The on-chip crystal circuitry includes a feedback resistor (nominally 2M ) between pins 1 and 2 and
4. When using an external clock input, X1 should be removed, Pin 1 (Xtal/Clock) should be tied to V
External Components
least 40% of V
crystal oscillator design assistance, consult your crystal manufacturer.
load capacitors on pins 1 and 2 (nominally 10pF each, excluding package and board parasitics).
the Clock In and Clock Out jumper should be removed, and the external clock signal applied to Clock In.
R1
R2
R3
R4
Note 1
Note 1
Note 1
Note 1
DD
, peak to peak. Tuning fork crystals generally cannot meet this requirement. To obtain
R
R
R
R
FEEDBACK
IN(-)
IN(+)
BIAS
Figure 2: Recommended External Components
Table 2: Recommended External Components
5
C1
C2
C3
C4
X1
Note 2, 3, 4
1.0µF
1.0µF
C
C
3.579545MHz
IN(-)
IN(+)
±20%
±20%
33k .
CMX631A
D/631A/1
DD
,