Document
Ordering number : EN6081
Monolithic Linear IC
LA7161V
VHF Band RF Modulator
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.
Package Dimensions
unit: mm 3178-SSOP16
1.0
0.15
[LA7161V]
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.
16
9
4.4
5.4
0.1
1.6max
1
8
0.22
0.65
0.43
SANYO : SSOP16
Functions
• RF VCO • RF mixer • RF buffer • Video clamp • White clip • Audio FM • 4V regulator • Reference OSC
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 Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN N1098RM (KT) No.6081-1/5
0.5
6.4
LA7161V Specifications Maximum Ratings at Ta=25°C
Parameter Symbol Conditions Maximum supply voltage VCC max Allowable power dissipation Pd max Operating temperature Topr Storage temperature Tstg Note : When mounted on a glass epoxy resin circuit board (114.3mm × 76.1mm × 1.6mm) Ratings 7 * 350 –20 to +75 –55 to +150 Unit V mW °C °C
Operating Conditions at Ta=25°C
Parameter Recommended supply voltage Operating voltage range Symbol VCC VCC op Conditions Ratings 5 4.5 to 5.5 Unit V V
Operating Characteristics at Ta=25°C, VCC=5V, US 3ch unless otherwise specified
Parameter Supply current 1 Supply current 2 Regulator voltage ANT SW driver RF output US RF output JP RF output TWN P/S ratio 4.5MHz 2nd harmonics 4.5MHz 3rd harmonics 920kHz beat Video harmonics Video modulation White clip level Differential gain Differential phase Audio modulation Maximum audio modulation Audio THD Audio S/N Symbol ICC1 ICC2 Vreg VANT PUS PJP PTW P/S P/S2 P/S3 P/CB P/V2 Mp WCL DG DP MS MS max THD S/N Conditions No signal, pin 6, high No signal, pin 6, low No signal Pin 6, high, 220Ω load No signal No signal, JPN 1ch No signal, TWN 13ch S : fp+4.5MHz S2 : fp+2×4.5MHz S3 : fp+3×4.5MHz VIN=3.58MHz, 0.6Vp-p CB : fp+920kHz VIN=1MHz, 1Vp-p V2 : fp+2MHz VIN=Stair step, 1Vp-p VIN=Stair step, 1.5Vp-p VIN=Stair step, 1Vp-p VIN=Stair step, 1Vp-p AIN=1kHz, 1Vp-p THD<3% AIN=1kHz, 1Vp-p AIN=1kHz, 1Vp-p VIN=Color bar, 1Vp-p *3 75 88 –5 –5 90 400 – 45 80 93 – – 100 – 0.4 52 85 98 +5 +5 110 – 2 – % % % Deg % % % dB 45 65 – dB *2 *2 *2 Ratings min 26 17 3.7 3.2 84 83.5 83 13.5 50 50 65 typ 37 25 3.9 3.5 87 86.5 86 16 65 55 72 max 48 23 4.1 3.8 90 89.5 89 18.5 – – – Unit mA mA V V dBµ dBµ dBµ dB dB dB dB
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.
No.6081-2/5
LA7161V Equivalent Circuit Block Diagram
ANT DRV RF OUT RF LPF OSC2 OSC1 VCC1 VCC2 REG
16
15
14
13
12
11
10
9
REG 4.0V
BUF
RF MIXER
BUF
RF OSC OFF
OFF BIAS ANT SW DRIVER PLL
FM OSC
PLL
WHITE CLIP
CARRIER OFF SW
CLAMP
REF OSC
CHANNEL
1
PSADJ
2
AUDIO IN
3
FM LPF
4
GND
5
VIDEO IN
6
CARR OFF
7
IN XTAL
8
CH
A11861
Test Circuit (US CH)
RF OUT ANT.SW DRIVE +VCC (5V)
100Ω 100pF
220Ω
0.1µF 47kΩ
2200pF
0.1µF
0.047µF
100pF
0.1µF
10kΩ 18pF
16
15
14
13
12
11
10
9
LA7161V
1 2
0.022µF
3
4
5
6
7
8
0.1µF
15pF
1500pF
3.6kΩ
56kΩ
6800pF
10kΩ
4MHz
Citizen CMR-310
470Ω
0.1µF
0.33µF
VIDEO IN
AUDIO IN
470Ω
RF OFF (Hi : RF work)
CHANNEL
A11862
No.6081-3/5
LA7161V
Sample Application Circuit (US, JPN CH)
RF OUT ANT.SW DRIVE +VCC (5V)
820Ω 100pF
0.1µF 47kΩ
82Ω
2200pF
0.1µF
0.047µF
0.1µF
100pF
10kΩ~∞ XXP US:18pF JPN:15pF 9
16
15
14
13
12
11
10
LA7161V
1 2 3 4 5 6 7 8
2.7kΩ (JPN:REMOVE)
OPEN:US 3CH GND:US 4CH CHANNEL 8.2kΩ OPEN:JPN 1CH (JPN:SHORT) GND:JPN 2CH
0.022µF
0.1µF
15pF
1500pF
3.6kΩ
56kΩ
6800pF
10kΩ
4MHz
Citizen CMR-310
470Ω
0.1µF
0.33µF
VIDEO IN
AUDIO IN
470Ω
RF OFF (Low ACTIVE)
A11863
Sample Application Circuit (TWN CH)
RF OUT ANT.SW DRIVE +VCC (5V)
750Ω 100pF
0.1µF 47kΩ
82Ω
2200pF
0.1µF
0.047µF
0.1µF
100pF
18pF 11 10 9
16
15
14
13
12
LA7161.