CXA1994 SONY [Sony Corporation], CXA1994 Datasheet - Page 3

• Manufacturer Part Number: CXA1994
• Description: M-ary FSK Demodulating Comparator
• Manufacturer: SONY [Sony Corporation]

Pin Description
1. V
2. TH CONT
3. DATA IN
4. REF
5. DATA OUT
6. NC
7. GND
8. B.S.
Electrical Characteristics
Current consumption
Current consumption
Comparator input voltage high level
Comparator input voltage low level
Comparator output saturation voltage
Logic input voltage high level
Logic input voltage low level
CC
Power supply pin of 1V or more
This pin adjusts the threshold level and the default is approximately ±50mV from the
reference voltage. The threshold level can be set lower by inserting a resistor between V
and this pin. (The level cannot be set higher.)
The signal after passing through the data filter of the IF IC (CXA1484A) is input.
Connects to the reference voltage pin of the IF IC. (Pin 15 of the CXA1484A)
Comparator output.
Not connected.
Ground.
Battery saving control pin. Battery saving state for low; normal operation for high.
Item
I
I
V
V
Vsat
V
V
Symbol
CC
CCS
COMPH
COMPL
THH
THL
– 3 –
V
V
REF
REF
Condition
as a reference
as a reference
Min.
0.9
(V
CC
Typ.
–50
70
50
= 1.4V, Ta = 25°C)
CXA1994AM/BM
Max.
0.35
100
0.4
6
Unit
mV
mV
µA
µA
V
V
V
CC