LA7053.PDF

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Ordering number : EN2010D
Monolithic Linear IC
LA7053
Video, Audio Signal Processor
for UHF Band RF Modulators
Overview
The LA7053 is a video, audio signal processor IC for UHF
band RF modulators. It performs the functions of TSG (test
signal generator), audio FM modulator, video clamp
circuit, white clip circuit.
Package Dimensions
unit: mm
3017C-SIP9
[LA7053]
Features
• White clip function.
• On-chip TSG (two vertical white stripes).
• Small-sized package (9-pin SIP).
Specifications
Maximum Ratings at Ta=25°C
Parameter
SANYO: SIP9
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V CC max
V7
12
V
Allowable power dissipation
Pd max
Ta ² 60°C
250
mW
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–40 to +125
°C
Operating Conditions at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V CC
V7
7.5
V
Operating voltage range
V CC op
7.0 to 8.0
V
Operating Characteristics at Ta=25°C, V CC (V7)=7.5V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
V CC 7 current drain
I CC 7 SW5 ON
12.0
20.0
28.0 mA
Video clamp voltage
V VC SW5 ON, SW1 ON, SW2 ® b, SW3 ® a
3.7
3.9
4.1 V
Video clamp output amplitude
SW ® 2b, SW3 ® a, SW5 ON
–5
+5 %
deviation
at 1Vp-p stair step signal input
Audio FM sensitivity
Æ f fm f m : 1kHz, 4.5Vp-p input,
870 1200 1500 Hz/mV
f C : 5.5MHz
Audio distortion
THD SW4 on at deviation width 100kHz
0.3
2.5 %
Audio output amplitude
f C : 5.5MHz
0.79
1.00
1.26 Vp-p
White clip level
V WC
1.16
1.19
1.22 Vp-p
TSG output amplitude
V TSG
0.80
1.04
1.20 Vp-p
V/S ratio
7.2/2.8 6.5/3.5 6.0/4.0
Continued on next page.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA (KT)/D2695TH/D068MO/1087KI/2216KI/N075MW, TS No.2010-1/3
311047672.004.png
LA7053
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Horizontal sync frequency
f S
–5
+5 %
variation
Horizontal sync signal width
H S
3.6
1.0
4.4 µs
variation
White signal width variation
H V
3.6
4.0
4.4 µs
Sync 1st white signal rise time
t V 1
22
24
26 µs
Sync 2nd white signal rise time
t V 2
22
24
26 µs
Equivalent Circuit Block Diagram
Test Circuit
Unit (resistance :
½
, Capacitance : F)
TSG Output Waveform
No.2010-2/3
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LA7053
Sample Application Circuit
Unit (resistance :
½
, Capacitance : F)
Ceramic resonator
C6
1000pF
680pF
C7
1000pF
330pF
CSB500E53 (Murata)
DCRK500 (Toko)
Test Conditions
Parameter
Symbol
SW Mode
Test point
Remarks
SW1 SW2 SW3 SW4 SW5
V CC 7 current drain
I CC 7
OFF
b
a
OFF ON
Pin 7
Video clamp voltage
V VC
ON
b
a
OFF ON
Pin 1
Video clamp output amplitude deviation
OFF
a
a
OFF ON
Pin 1
Audio FM sensitivity
Æ f fm
OFF
b
a
ON ON
Pin 3
Audio distortion
THD
OFF
b
a
ON ON
pin 3
Audio output amplitude
OFF
b
a
OFF ON
Pin 3
White clip level
V WC 1 ON
c
a
OFF ON
Pin 1
V WC =V WC 1–V WC 2
V WC 2 ON
b
b
OFF ON
Pin 1
TSG output amplitude
V TSG OFF
b
a
OFF OFF
Pin 1
V/S ratio
OFF
b
a
OFF OFF
Pin 1
Horizontal sync frequency variation
f S
OFF
b
a
OFF OFF
Pin 1
Horizontal sync signal width variation
H S
OFF
b
a
OFF OFF
Pin 1
White signal width variation
H V
OFF
b
a
OFF OFF
Pin 1
Sync 1st white signal rise time
t V 1
OFF
b
a
OFF OFF
Pin 1
Sync 2nd white signal rise time
t V 2
OFF
b
a
OFF OFF
Pin 1
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and
the like, the failure of which may directly or indirectly cause injury, death or property lose.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
Not impose any responsibilty for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant-
eed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees
are made or implied regarding its use or any infringements of intellectual property rights or other rights of
third parties.
This catalog provides information as of July, 1997. Specifications and information herein are subject to
change without notice.
No.2010-3/3
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