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PDF CXA1511L Data sheet ( Hoja de datos )
| Número de pieza | CXA1511L | |
| Descripción | Preamplifier for Remote Control Signal Reception | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA1511L/M
Preamplifier for Remote Control Signal Reception
Description
The CXA1511L/M is a bipolar IC used for
preamplifiers that receive signals in infrared remote
control systems. These ICs consist of a first-stage
amplifier, limiter amplifier, band-pass filter, band
elimination filter, signal waveform detection circuit
and waveform shaping circuit.
8 pin SIP (Plastic)
8 pin SOP (Plastic)
Features
• Low power consumption (VCC = 5V, 9mW typ.)
• Low supply voltage (VCC = 5V)
• Filters (center frequency can be varied through
external resistor: fo = 30kHz to 60kHz, 40kHz typ.)
• Elimination of inductors prevents magnetic field
inductance interference.
• Optical reception diode can be coupled directly.
• Collector output (pull-up resistor, TTL and CMOS
can be connected directly)
Applications
TVs, VCRs, audio equipment
Absolute Maximum Ratings
• Supply voltage
VCC
7
V
• Operating temperature Topr –20 to +75
°C
• Storage temperature Tstg –65 to +150
°C
• Allowable power dissipation
PD 600 mW (SIP)
• Allowable power dissipation
PD 300 mW (SOP)
Operating Conditions
• Supply voltage
4.7 to 5.3
V
Structure
Bipolar silicon monolithic IC
Block Diagram and Pin Configuration
Photo
Diode
IN 1
Head
Amp
Limiter
Amp
BPF Delector &
Hysteresis
BEF Comparator Integralor Comparator
ABLC
2
C1
470, 680
0.01µ
3456
C2 GND fo N.C.
78
OUT VCC
0.01µ
200k
(fo = 40kHz)
VCC = 5V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E94301A8X
1 page  
Electrical Characteristics Measurement Circuit
CXA1511L/M
12
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
1
Photo
Diode
23
470,
680
4
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.
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CXA1511L.PDF ] | |
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