Sanyo LA7161V Specifications
LA7161V
Ordering number : EN6081
VHF Band RF Modulator
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N1098RM (KT) No.6081-1/5
Package Dimensions
unit: mm
3178-SSOP16
[LA7161V]
SANYO : SSOP16
18
916
6.4
0.5
4.4
5.4
0.1
1.6max
1.0
0.650.22
0.43
0.15
Functions
• RF VCO
• RF mixer
• RF buffer
• Video clamp
• White clip
• Audio FM
• 4V regulator
• Reference OSC
Overview
The LA7161V is an RF modulator which generates, from a
baseband video and audio signal, PLL frequency
synthesized RF TV channel signal in VHF band.
Features
• 5V operation.
• PLL synthesized RF VCO (US : 3ch, 4ch, JPN : 1ch, 2ch
, TWN : 13ch only), channel selection accomplished
using two pins.
• PLL synthesized (4.5MHz frequency) and tankless audio
FM.
• The 4 or 3.58MHz (color subcarrier) reference frequency
for PLL can either be generated internally or input from
an external source.
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.
LA7161V
No.6081-2/5
Operating Characteristics
at Ta=25°C, VCC=5V, US 3ch unless otherwise specified
Parameter Symbol Conditions
Ratings
min typ max
Unit
Supply current 1 I
CC
1 No signal, pin 6, high 26 37 48 mA
Supply current 2 I
CC
2 No signal, pin 6, low 17 25 23 mA
Regulator voltage Vreg No signal 3.7 3.9 4.1 V
ANT SW driver V
ANT
Pin 6, high, 220Ω load 3.2 3.5 3.8 V
RF output US P
US
No signal *2 84 87 90 dBµ
RF output JP P
JP
No signal, JPN 1ch *2 83.5 86.5 89.5 dBµ
RF output TWN P
TW
No signal, TWN 13ch *2 83 86 89 dBµ
P/S ratio P/S S : fp+4.5MHz 13.5 16 18.5 dB
4.5MHz 2nd harmonics P/S2 S2 : fp+2
×4.5MHz 50 65 – dB
4.5MHz 3rd harmonics P/S3 S3 : fp+3×4.5MHz 50 55 – dB
920kHz beat P/CB V
IN
=3.58MHz, 0.6Vp-p 65 72 – dB
CB : fp+920kHz
Video harmonics P/V2 V
IN
=1MHz, 1Vp-p 45 65 – dB
V2 : fp+2MHz
Video modulation Mp V
IN
=Stair step, 1Vp-p 75 80 85 %
White clip level WCL V
IN
=Stair step, 1.5Vp-p 88 93 98 %
Differential gain DG V
IN
=Stair step, 1Vp-p –5 – +5 %
Differential phase DP V
IN
=Stair step, 1Vp-p –5 – +5 Deg
Audio modulation M
S
AIN=1kHz, 1Vp-p *3 90 100 110 %
Maximum audio modulation M
S
max THD<3% 400 – – %
Audio THD THD A
IN
=1kHz, 1Vp-p – 0.4 2 %
Audio S/N S/N A
IN
=1kHz, 1Vp-p 45 52 – dB
V
IN
=Color bar, 1Vp-p
Specifications
Maximum Ratings
at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max 7 V
Allowable power dissipation Pd max * 350 mW
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C
Note : When mounted on a glass epoxy resin circuit board (114.3mm × 76.1mm × 1.6mm)
Operating Conditions
at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
5V
Operating voltage range V
CC
op 4.5 to 5.5 V
Notes *2 : Measure the pin RF OUT with a spectrum analyzer of 50Ω input impedance and add 9.5 dB to that value.
*3 : 100%=±25kHz modulation.
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