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.
RF1
RF2
V
CC
2
LOIN1
LOOP1
LOOP2
LOIN2
V
EE
2
ST1
ST2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
AGC
VIDEO
TSG
V
EE
1
OP2
OP1
MSS
SUB2
V
CC
1
AUDIO
SL5162
15
14
13
12
11
MP20
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 75Ω RF 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
PRESCALER OUTPUTS
5
6
Figure 1 Pin connections – top view
ORDERING INFORMATION
SL5162/KG/MP1S
Miniature plastic package
SL5162/KG/MP1T
Tape and reel
ABSOLUTE MAXIMUM RATINGS
Storage temperature
Junction temperature
Ambient temperature
Supply Voltage
Voltage at any other pin
255°C
to1150°C
220°C
to1150°C
210°C
to180°C
20·3V
to17·0 V
20·3V
to17·0V
UHF
OSC
1
2
UHF
MIXER
15
16
UHF
TANK
4
7
MODULATED
OUTPUTS
SUBCARRIER 2
13
FM
CLAMP
AUDIO OSC
AGC
MIXER
DRIVER
FM/AM
SELECT
9
10
VIDEO
INPUT
75
19
SOUND
TANK
11
20
AUDIO
INPUT
MODE
SELECT
TSG
AGC
CLIP
OFFSET
ADJUST
14
CLIP
TSG
ENABLE
18
LOGIC
Figure 2 Block diagram
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
