10
26” TFT TV Service Manual
04/03/2005
12.6. TEA6415
12.6.1. General
description
The main function of the IC is to switch 8 video input sources on 6 outputs. Each output can be switched
on only one of each input. On each input an alignment of the lowest level of the signal is made (bottom of
synch. top for CVBS or black level for RGB signals). Each nominal gain between any input and output is
6.5dB. For D2MAC or Chroma signal the alignment is switched off by forcing, with an external resistor
bridge, 5 V
DC
on the input. Each input can be used as a normal input or as a MAC or Chroma input (with
external resistor bridge). All the switching possibilities are changed through the BUS. Driving 75
Ω
load
needs an external transistor. It is possible to have the same input connected to several outputs. The
starting configuration upon power on (power supply: 0 to 10V) is undetermined. In this case, 6 words of 16
bits are necessary to determine one configuration. In other case, 1 word of 16 bits is necessary to
determine one configuration.
12.6.2. Features
• 20MHz Bandwidth
• Cascadable with another TEA6415C (Internal address can be changed by pin 7 voltage)
• 8 Inputs (CVBS, RGB, MAC, CHROMA,...)
• 6 Outputs
• Possibility of MAC or chroma signal for each input by switching-off the clamp with an external resistor
bridge
• Bus controlled
• 6.5dB gain between any input and output
• 55dB crosstalk at 5mHz
• Fully ESD protected
12.6.3. Pinning
1.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max : 3mA
2.
Data
:
Low level
: -0.3V Max: 1.5V,
High level
: 3.0V Max
: Vcc+0.5V
3.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max
: 3mA
4.
Clock
:
Low level
: -0.3V Max: 1.5V,
High level
: 3.0V Max
: Vcc+0.5V
5.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max : 3mA
6.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max : 3mA
7. Prog
8.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max: 3mA
9. Vcc
: 12V
10.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max : 3mA
11.
Input
:
Max
: 2Vpp, Input Current: 1mA, Max : 3mA
12. Ground
13.
Output :
5.5Vpp,
Min : 4.5Vpp
14.
Output :
5.5Vpp,
Min : 4.5Vpp
15.
Output :
5.5Vpp,
Min : 4.5Vpp
16.
Output :
5.5Vpp,
Min : 4.5Vpp
17.
Output :
5.5Vpp,
Min : 4.5Vpp
18.
Output :
5.5Vpp, Min : 4.5Vpp
19. Ground
20.
Input
:
Max : 2Vpp, Input Current
: 1mA, Max
: 3mA
Summary of Contents for 17MB08P
Page 1: ...26 TFT SERVICE MANUAL 17MB08P RELEASE DATE 04 03 2005 PREPARED BY VESTEL ELECTRONICS...
Page 2: ...THIS PAGE IS INTENTIONALLY LEFT BLANK...
Page 42: ...38 26 TFT TV Service Manual 01 03 2005 15 CIRCUIT DIAGRAMS...
Page 43: ...39 26 TFT TV Service Manual 01 03 2005...
Page 44: ...40 26 TFT TV Service Manual 01 03 2005...
Page 45: ...41 26 TFT TV Service Manual 01 03 2005...
Page 46: ...42 26 TFT TV Service Manual 01 03 2005...
Page 47: ...43 26 TFT TV Service Manual 01 03 2005...
