SANYO LA7051 Datasheet
LA7051
Ordering number : EN1455C
Video, Audio Signal Processor
for UHF Band RF Modulator
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA (KT)/D1595TH/D068MO/3214KI/1194KI, TS No.1455-1/3
Package Dimensions
unit: mm
3017C-SIP9
[LA7051]
SANYO: SIP9
Specifications
Maximum Ratings
at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max V8 12 V
Allowable power dissipation Pd max Ta≤60°C 250 mW
Operating temperature Topr –20 to +85 °C
Storage temperature Tstg –55 to +125 °C
Operating Conditions at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
V8 7.5 V
Operating voltage range V
CC
op 7.0 to 8.0 V
Operating Characteristics at Ta=25°C, V
CC
(V8)=7.5V
Parameter Symbol Conditions
Ratings
min typ max
Unit
V
CC
8 current drain ICC8 9.5 14.5 19.5 mA
Video clamp voltage V
VC
3.6 3.8 4.0 V
Audio FM sensitivity ∆f
fm
6f
m
: 1kHz, 4.5Vp-p input, 900 1250 1600 Hz/mV
f
C
: 5.5MHz
∆f
fm
7f
m
: 1kHz, 4.5Vp-p input, 900 1250 1600 Hz/mV
f
C
: 5.5MHz, R* : 15kΩ
Audio distortion THD6 At deviation width ±50kHz 1.6 2.5 %
THD7 f
m
: 1kHz, fC: 5.5MHz 1.6 2.5 %
Video clamp output amplitude At 1Vp-p stair step signal input –5 +5 %
deviation
Audio output amplitude V
O
6f
C
: 5.5MHz 0.79 1.0 1.26 Vp-p
V
O
7 0.79 1.0 1.26 Vp-p
White clip level V
WC
At 1.5Vp-p stair step signal input 1.100 1.189 Vp-p
*Note : Resistance value of 50kΩ variable resistor in Test Circuit.
Overview
The LA7051 is a video, audio signal processor IC for UHF
band RF modulator. It performs the functions of audio FM
modulator, video clamp circuit, white clip circuit.
Applications
• VCRs.
Features
• 5.5MHz/6.0MHz audio modulation frequency selectable
with control pin.
• Contains white clip circuit.
• Minimum number of external parts required.
LA7051
No.1455-2/3
LA7051 Test Condition
Parameter Symbol
SW Mode
Test point Remarks
SW1 SW2 SW3 SW4 SW5
V
CC
8 current drain ICC8 OFF c a OFF ON Pin 8
Video clamp voltage V
VC
ON c a OFF OFF Pin 1
Audio FM sensitivity ∆f
fm
6 OFF c a ON ON Pin 3
∆f
fm
7 OFF c a ON OFF Pin 3
Audio distortion THD6 OFF c a ON ON pin 3
THD7 OFF c a ON OFF pin 3
Video clamp output amplitude deviation OFF a a OFF OFF Pin 1
Audio output amplitude V
O
6 OFF c a OFF ON Pin 3
V
O
7 OFF c a OFF OFF pin 3
White clip level V
WC
1 ON b a OFF OFF Pin 1 VWC=VWC1–VWC2
V
WC
2 ON c b OFF OFF Pin 1
Test Circuit
Equivalent Circuit Block Diagram
Unit (resistance : Ω, Capacitance : F)
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