STV2246H/86H Просмотр технического описания (PDF) - STMicroelectronics
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STV2246H/86H Datasheet PDF : 86 Pages
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STV224XH/228XH/223XH - GENERAL DESCRIPTION
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma
and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90° chassis,
STV9306 for a 110° chassis), they allow multistandard (BGDKIMNLL’, PAL/SECAM/NTSC) sets to be de-
signed with very few external components and no manual adjustments.
Package
SHRINK56
TQFP64
PAL/NTSC
Intercarrier
STV2246H/86H
STV2236H
Application
PAL/NTSC
QSS/Intercarrier
PAL/SECAM/NTSC
QSS/Intercarrier
AM
STV2247H
STV2248H
STV2237H
STV2238H
PAL/SECAM/NTSC
QSS/Intercarrier
STV2249H
STV2239H
Function
PAL/SECAM/NTSC
PAL/NTSC
QSS/Intercarrier
Intercarrier Only
AM
Audio FM Wide mode with QSS Application
1 EXT RGB Input (OSD)
OSD RGB Inputs & RGBEXT/YCrCb Inputs
2246H/36H
X
X
X
2286H
X
X
X
2247H/37H 2248H/38H 2249H/39H
X
X
X
X
X
X
X
X
X
X
X
X
X
1.2 PIN DESCRIPTION
Table 1. Pin Configuration
PIN
STV224XH/228XH
SDIP56
1
2
3
4
5
6
7
-
8
9
10
11
12
13
14
15
16
17
18
STV223XH
TQFP64
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Symbol
SIFIN1
SIFIN2
AGCSIFCAP
VREFIF
AGCPIFCAP
PIFIN1
PIFIN2
SAW
TUNERAGCOUT
IFPLL
GNDIF
AM/FMOUT/SC
VCCIF
INTCVBSOUT
EXTAUDIOIN
PIFLC1
PIFLC2
VCC2
CVBSIN1
Description
SIF Input (Please refer to Note 1)
SIF Input (Please refer to Note 1)
AGC SIF Capacitor (Please refer to Note 1)
Voltage Reference Filtering
AGC PIF Capacitor
PIF Input
PIF Input
Filter Switch Control
AGC Tuner Output
IF PLL Filter
IF Ground
AM/FM Mono Sound or Stereo Carriers Output
5 V IF Supply
Internal CVBS Output
External Audio Input
LC Input
LC Input
Video/Luma Supply Voltage (8 V)
Internal Video Input
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