CXA1994BM 데이터 시트보기 (PDF) - Sony Semiconductor

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CXA1994BM

M-ary FSK Demodulating Comparator

Sony Semiconductor 

Electrical Characteristics

Item

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

CXA1994AM/BM

(VCC = 1.4V, Ta = 25°C)

Symbol

Condition

Min. Typ. Max. Unit

ICC

70 100 µA

ICCS

6 µA

VCOMPH VREF as a reference

50

mV

VCOMPL VREF as a reference

–50

mV

Vsat

0.4 V

VTHH

0.9

V

VTHL

0.35 V

Pin Description

1. VCC

2. TH CONT

3. DATA IN

4. REF

5. DATA OUT

6. NC

7. GND

8. B.S.

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 VCC

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.

–3–

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