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PDF LA9520V Data sheet ( Hoja de datos )
| Número de pieza | LA9520V | |
| Descripción | AV Coupler Receiver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : ENN6469A
Monolithic Linear IC
LA9520V
AV Coupler Receiver
Overview
The LA9520V is a receiver IC developed for free-space
infrared transmission of stereo audio and video signals. It
integrates all the required functions for reception,
including I/V conversion for the received signal, a
preamplifier, ALC, audio signal demodulation, and video
signal demodulation functions, on a single chip. An AV
coupler system can be implemented easily using this IC
and a transmitter IC (such as the LA9511W or
LA9512W).
Functions and Features
[Input Block]
• I/V conversion featuring excellent wideband characteristics
• Preamplifier ALC with wide ALC operating range
[Audio Block]
• Audio demodulator: Built-in 4.3 and 4.8 MHz demodulation
circuits.
• Muting function: Mutes the output stage when there is
no input signal. The muting function operating level can
be adjusted from an input pin.
• Output amplifiers: The right and left levels can be
adjusted by applying voltages to input pins. Electronic
volume control support.
[Video Block]
• Video demodulator
• Video amplifier: Supports 75 Ω drive. Adjustable output
level: supports an electronic volume control.
• Muting function: Mutes the output stage when there is
no input signal. The muting function operating level can
be adjusted from an input pin.
• Filter: Removes unneeded high-frequency components.
Package Dimensions
unit: mm
3247A-SSOP36
[LA9520V]
36 19
1
0.3
15.0
(0.7) 0.8
18
0.2
SANYO: SSOP36
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
Ratings
6.5
550
–20 to +70
–40 to +150
Unit
V
mW
°C
°C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22002TN (OT) / 71400RM (OT) No. 6469-1/12
1 page  
LA9520V
Test Circuit Diagram
This circuit diagram is provided for reference purposes. Applications adopting this design may require optimization.
No. 6469-5/12
5 Page 
LA9520V
VCC — ICC
Preamplifier I/O Frequency Characteristics
100 30
No input
80 20
60 10
40
20
3 4567
Supply voltage, VCC — V
Preamplifier I/O ALC Characteristics
20 6.0
SG 9 Preamplifier 31 VM
10 75Ω
0 5.0
I/O gain
–10 pin 31 output:
0 dB ≈ 0.8 Vp-p
–20 4.0
Pin 30
–30 ALC voltage
–40 3.0
–50
–60
40
2.0
60 80 100 120 140
Input — dBµ
Video Output Amplifier Characteristics
30
33
1kΩ
1+
75Ω Video output
SG
20 Pin 1 output: 0 V
0.1µF
50Ω
34
8.2kΩ
2+
2kΩ
75Ω
0.4V
10 0.8V
1.2V
0
0
SG
9
75Ω
31
VM
–10
100k 2
3 5 71M 2
3 5 7 10M 2
Input frequency, fIN — Hz
3 5 7 100M
Video Demodulator Conversion Characteristics
3.6
FM waveform
3.2
SG
2.8
36 34
Input: 80 dBµ
Composite video signal
VM
2.4
2.0
1.6
4 8 12 16 20
Input frequency, fIN — MHz
Maximum Driver Output Amplitude
2.4
220µF
1+
75Ω Output
At least 1 Vp-p
2.0
2
4.7µF
+
8.2kΩ
75Ω
2kΩ
1.6
24
1.2
0.8
–10
10k 2
3 5 7100k 2 3 5 71M 2 3 5 7 10M 2
Input frequency, fIN — Hz
3 5 7100M
Audio I/O Characteristics
12
VCC = 5V
8 f = 1kHz
∆f = ±22.5kHz
26 21
28 20
4 Carrier frequencies: 4.3 MHz SG 75Ω
4.8 MHz
VM
0
0dB=300mVrms
–4
–8
–12
–16
–20
20
40 60 80 100 120
Input FM modulation level — dBµ
140
0.4
4 5 67
Supply voltage, VDC — V
Left and Right Channel Audio Characteristics
40
30 The pin 20 and 21 outputs
(Lch) (Rch) 0V
20 0.4V
0.8V
10 1.2V
0
–10
100 2 3 5 71k 2 3 5 710k 2 3 5 7100k 2 3 5 71M 2 3 5 710M
Input frequency, fIN — Hz
No. 6469-11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LA9520V.PDF ] | |
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