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STV6435SSTN/a5000avaiFILTERED VIDEO BUFFERS FOR STB AND DVD DEVICES
STV6435SST ?N/a12avaiFILTERED VIDEO BUFFERS FOR STB AND DVD DEVICES
STV6435STSTN/a493avaiFILTERED VIDEO BUFFERS FOR STB AND DVD DEVICES


STV6435S ,FILTERED VIDEO BUFFERS FOR STB AND DVD DEVICESElectrical Characteristics ...6Chapter 3 Input/Output Groups . . . . . .10Chapter 4 Applicati ..
STV6435S ,FILTERED VIDEO BUFFERS FOR STB AND DVD DEVICESFEATURES■ Y, C, CVBS and RGB Inputs with 7 MHz Filters■ 6 dB Gains■ Capabilities of Integrated Outp ..
STV6435ST ,FILTERED VIDEO BUFFERS FOR STB AND DVD DEVICESapplications. After removing D/A conversion noises using integrated low pass filters, the STV6435 a ..
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STV6435S-STV6435ST
FILTERED VIDEO BUFFERS FOR STB AND DVD DEVICES
TARGET SPECIFICATION
STV6435

Filtered Video Buffers for STB and DVD Devices
FEA TURES
Y, C, CVBS and RGB Inputs with 7 MHz Filters6 dB Gains Capabilities of Integrated Output Buffers:
Single Load (150Ω) for RGB signals
Double Load (75Ω) for Y, C and CVBS signals
DC Coupled Outputs for CVBS and RGB
signals, DC or AC coupled output for Chroma
signal
Bottom Clamp on RGB, Y and CVBS, Bias
Clamp on C
Crosstalk: 55 dB (typ.) Separate Stand-by Modes on Y/C/CVBS and
on RGB signals
Switchable Y+C Adder for Decoders without
CVBS Outputs
DESCRIPTION

The STV6435 is a filtered video output interface for
STB and DVD applications.
After removing D/A conversion noises using
integrated low pass filters, the STV6435 adapts in
amplitude and impedance the video signals coming
from the digital decoder for transmission, via 75Ω
adapted cables, to the TV set, VCR and auxiliary
devices.
The STV6435 is powered by a 5V supply.
The STV6435 is fully compatible with STi55xx
Digital Decoders.
The STV6435 is mounted in a SO24 package
(STV6435S) or in a DIP package (STV6435D).
STV6435 able of Contents
Chapter 1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 I/O Pin Description .............................................................................................................4
Chapter 2 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.1 Absolute Maximum Ratings ................................................................................................6
2.2 Thermal Data ......................................................................................................................6
2.3 Electrical Characteristics ......................................................................................................6
Chapter 3 Input/Output Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chapter 4 Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chapter 5 Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Chapter 6 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
STV6435 General Information General Information
Note: The three RGB channels are identical and their pin assignments may be interchanged in an
application if needed. In this case, verify that the outputs correspond to the inputs; for example, the
pin 7 input must correspond to the pin 14 output.
Figure 1: STV6435S Pinout
Figure 2: STV6435D Pinout
General Information STV6435
1.1 I/O Pin Description
Table 1: Pin Description
STV6435 General Information
Figure 3: STV6435 Block Diagram
Electrical Characteristics STV6435 Electrical Characteristics
2.1 Absolute Maximum Ratings
2.2 Thermal Data
2.3 Electrical Characteristics

Test conditions: T AMB= 25°C, VCC =5 V; V CCB =5V; R GENERATOR =75 Ω, R LOUT =75 Ω for
YOUT, CVBSOUT and COUT RLOUT =150 Ω for GOUT, BOUT and ROUT , unless otherwise
specified.
STV6435 Electrical Characteristics
2.3.1 Video Section (Y and CVBS Signals)

Test conditions: T AMB= 25°C, VCC =5 V; V CCB =5V; R GENERATOR =75 Ω, R LOUT =75 Ω for Y and
CVBS outputs and R LOUT= 150 Ω for G output, unless otherwise specified.
Electrical Characteristics STV6435
2.3.2 Chroma Section

Test conditions: T AMB= 25°C, VCC =5 V; V CCB =5V; R GENERATOR =75 Ω and R LOUT =75Ω
unless otherwise specified.
STV6435 Electrical Characteristics
2.3.3 RGB Section

Test conditions: T AMB= 25°C, VCC =5 V; V CCB =5V; R GENERATOR =75 Ω and R LOUT =150 Ω,
unless otherwise specified.
2.3.4 Mute Section

Test conditions: T AMB= 25°C, VCC =5 V; V CCB =5V; R GENERATOR =75 Ω and R LOUT =75Ω
unless otherwise specified.
Note:1 When the MUTE pin is left open, its voltage is defined by an internal voltage divider performed by a
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