STV2246H STMicroelectronics, STV2246H Datasheet - Page 6

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

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.
1.2 PIN DESCRIPTION
Table 1. Pin Configuration
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
STV224XH/228XH
SHRINK56
Package
TQFP64
SDIP56
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
-
STV2246H/86H
PIN
Intercarrier
PAL/NTSC
STV2236H
Function
STV223XH
TQFP64
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
8
9
STV224X, STV228X, STV223X - GENERAL DESCRIPTION
QSS/Intercarrier
SIFIN1
SIFIN2
AGCSIFCAP
V
AGCPIFCAP
PIFIN1
PIFIN2
SAW
TUNERAGCOUT
IFPLL
GND
AM/FMOUT/SC
V
INTCVBSOUT
EXTAUDIOIN
PIFLC1
PIFLC2
V
CVBSIN1
REFIF
CCIF
CC2
PAL/NTSC
STV2247H
STV2237H
IF
Symbol
2246H/36H
Application
X
X
X
PAL/SECAM/NTSC
QSS/Intercarrier
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
2286H
STV2248H
STV2238H
X
X
X
AM
2247H/37H 2248H/38H 2249H/39H
X
X
X
X
Description
PAL/SECAM/NTSC
QSS/Intercarrier
X
X
X
X
X
STV2249H
STV2239H
X
X
X
X
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