CXA1511L Просмотр технического описания (PDF) - Sony Semiconductor

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производитель

CXA1511L

Preamplifier for Remote Control Signal Reception

Sony Semiconductor 

Electrical Characteristics Measurement Circuit

CXA1511L/M

1

2

470

S1 S2 S3

0.01µ

3 4 56

78

C

A

S4

I1

100µA

0.47µ

S5

S7 S8 S9

0.47µ S6 0.01µ

50

SG

330k

200k

B

D

E2

5.0V

Application Circuit

(CXA1511L)

CXA1511L

1 2 3 4567 8

E1

1.0V

(CXA1511M)

47

+5V

47µ

OUT

200k

1%

(fo = 40kHz)

Photo

Diode

PH302B

470,

680

0.01µ 0.01µ

200k OUT

1%

(fo = 40kHz)

47

+5V

47µ

8 76 5

CXA1511M

12 34

470,

Photo

680

Diode

PH302B

Description of Operation (See the Block Diagram.)

0.01µ 0.01µ

Receives infrared signals transmitted from the infrared remote control commander with a photodiode to output

them as rectangular waves.

I/O pin

Waveform

Operation

Pin 1

Input waveform

40µVp-p

to 2.5Vp-p

600µs typ.

40kHz (typ.)

Converts the signal current of a photodiode into

voltage and amplifies it.

Pin 3

BPF output

waveform

Suppresses the noise component with BPF and

BEF.

Hysteresis

comparator

input waveform

Pin 7

Output

waveform

Detects the signal component and performs

wave detection.

5V

0.6V

(typ.)

–5–

Integrates the signal component and outputs it

as rectangular wave from the hysteresis

comparator.

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