STV0042A Datasheet, PDF (1/24 Pages) STMicroelectronics – SATELLITE SOUND AND VIDEO PROCESSORS

STV0042A
SATELLITE SOUND AND VIDEO PROCESSORS
SOUND
. _{TWO INDEPENDENTSOUND DEMODULATORS}
. _{PLL DEMODULATION WITH 5-10MHz}
FREQUENCY SYNTHESIS
. PROGRAMMABLE FM DEMODULATOR
BANDWIDTH ACCOMODATING FM DEVIA-
TIONS FROM ±30kHz TILL ±400kHz
. PROGRAMMABLE 50/75µs OR NO DE-EM-
PHASIS
. _{DYNAMIC NOISE REDUCTION}
. _{ONE OR TWO AUXILIARY AUDIO INPUTS}
AND OUTPUTS
. GAIN CONTROLLED AND MUTEABLE
AUDIO OUTPUTS
. HIGH IMPEDANCE MODE AUDIO OUTPUTS
FOR TWIN TUNER APPLICATIONS
VIDEO
. COMPOSITE VIDEO 6-bit 0 to 12.7dB GAIN
CONTROL
. COMPOSITE VIDEO SELECTABLE IN-
VERTER
. TWO SELECTABLE VIDEO DE-EMPHASIS
NETWORKS
. _{4 x 2 VIDEO MATRIX}
. _{HIGH IMPEDANCE MODE VIDEO OUTPUTS}
FOR TWIN TUNER APPLICATIONS
MISCELLANEOUS
. _{22kHzTONE GENERATIONFOR LNB CONTROL}
. _I²_{C BUS CONTROL :}
CHIP ADDRESSES = 06HEX
. LOW POWER STAND-BY MODE WITH ACTIVE
AUDIO AND VIDEO MATRIXES
DESCRIPTION
The STV0042A BICMOS integrated circuit realizes
all the necessary signal processing from the tuner
to the Audio/Video input and output connectors
regardless the satellite system.
The STV0042 is intended for low cost satellite
receiver application.
PRODUCT PREVIEW
SHRINK42
(Plastic Package)
ORDER CODE : STV0042A
PIN CONNECTIONS
FC R
1
PK IN
2
SUM OUT
3
VOL R
4
S1 VID OUT
5
S2 VID OUT
6
VOL L
7
S2 VID RTN
8
S2 OUT L
9
CLAMP IN
10
S2 OUT R
11
UNCL DEEM
12
VIDEEM2/22kHz
13
V 12V
14
VIDEEM1
15
V GND
16
B-BAND IN
17
S2 RTN L
18
S2 RTN R
19
FM IN
20
AGC L
21
42
A GND R
41
FC L
40
PK OUT
39
I_REF
38
CPUMP R
37
U75 R
36
DET R
35
AMPLK R
34
A 12V
33
V_REF
32
A GND L
31
AGC R
30
AMPLK L
29
U75 L
28
DET L
27
CPUMP L
26
GND 5V
25
V_DD 5V
24
XTL
23
SDA
22
SCL
March 1997
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