SANYO LA7160M Datasheet

LA7160M

Ordering number : EN5570B

VHF 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

13098HA (KT) / N2897HA (KT) / 73196RM No.5570-1/3

Package Dimensions

unit: mm

3035A-MFP16 (SOP16)

[LA7160M]

SANYO : MFP16

1

16

8

9

10.1

0.15

0.6051.27

0.35

0.1

1.8max

1.5

0.625

4.4

5.15

6.4

Overview

The LA7160M 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
only), channel selection accomplished using a single pin.

• PLL synthesized 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.

• Package : MFP16 (SOP16)

Functions

• RF VCO

• RF mixer

• RF buffer

• Video clamp

• White clip

• Audio FM

• 4V regulator

• Reference OSC

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 250 mW
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C

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

LA7160M

No.5570-2/3

Operating Characteristics at Ta=25°C, V

CC

=5V

Parameter Symbol Conditions

Ratings

min typ max

Unit

Supply current 1 I

CC

1 No signal, pin 6, high 20 28 36 mA

Supply current 2 I

CC

2 No signal, pin 6, low 13 18 23 mA
ANT SW driver ANT Pin 6, high 3.2 3.5 3.8 V
RF output US P

US

No signal 89 92 95 dBµ

RF output JP P

JP

No signal 89 92 95 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 45 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 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 51 dB

V

IN

=Color bar, 1Vp-p

Equivalent Circuit Block Diagram

15

16

14

13

12 11 10 9

1

2 3 4 5 6 7 8

A06397

BIAS

REG

4.0V

RF

OSC

ANT SW
DRIVER

RF

MIXER

PLL

FM

OSC

WHITE

CLIP

CARRIER

OFF SW

REF
OSC

PLL

CHANNEL

CLAMP

BUFBUF

PSADJ

AUDIO IN

FM LPF

GND

VIDEO IN

CARR OFF

IN XTAL

CH

REG

RF OUT

ANT DRV

V

CC

1

RF LPF

V

CC

2

OSC2

OSC1

OFF

OFF