SL5162

Multistandard VHF and UHF Television Demodulator

Supersedes September 1996 edition, DS4497-2.1

DS4497-3.0 September 1998

The SL5162 multistandard modulator up-converts a

baseband video signal with separate audio frequency input

on to a VHF or UHF carrier up to 860MHz. It provides RF

signals with negative or positive video modulation and AM

or FM sound subcarrier to satisfy both PAL/NTSC and

SECAM applications.

The on-chip local oscillator uses an external resonator

tank which may be controlled via any Mitel 1.3GHz

synthesiser. Selection of both video and sound standards

are provided by level switching of a single pin.

A video AGC circuit is provided to ensure constant

modulation depth. In PAL mode this may be disabled and

a white clip circuit switched in to prevent overmodulation if

desired.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

RF1

RF2

LOIN1

LOOP1

LOOP2

LOIN2

ST1

ST2

AGC

VIDEO

TSG

OP2

OP1

MSS

SUB2

AUDIO

SL5162

MP20

Figure 1 Pin connections – top view

FEATURES

s Covers both Negative and Positive Modulation Sys-

tems

s Internal AGC with Disable

s Control of Sound and Video Standard via Single Pin

s Symmetrical 75

ΩRF Outputs for Low Radiation

s Audio Input with AM/FM Sound Modulator

s Switchable Video Test Signal Generator (TSG)

s Intercarrier Input for Second Sound Channel

s ESD Protection

2

55

°C to1150°C

2

20

°C to1150°C

2

10

°C to180°C

2

0·3V to17·0 V

2

0·3V to17·0V

ABSOLUTE MAXIMUM RATINGS

Storage temperature

Junction temperature

Ambient temperature

Supply Voltage

Voltage at any other pin

ORDERING INFORMATION

SL5162/KG/MP1S Miniature plastic package

SL5162/KG/MP1T Tape and reel

MIXER

DRIVER

FM/AM

SELECT

OFFSET

ADJUST

UHF

MIXER

AUDIO OSC

FM

AGC

AGC

CLIP

CLAMP

75

VIDEO

INPUT

UHF

OSC

5

6

4

7

13

19

20

UHF

TANK

SUBCARRIER 2

12

PRESCALER OUTPUTS

15

16

MODULATED

OUTPUTS

9

10

SOUND

TANK

11

AUDIO

INPUT

14

MODE

SELECT

TSG

ENABLE

CLIP

LOGIC

TSG

18

Figure 2 Block diagram