Tea6415C; General Description; Features - Sharp 32LW-92H Service Manual

28 SENSE
29 GNDM
30 VERTQ
31 VERT
32 E/w
33 XREF
34 SVMOUT
35 GNDAB
36 VSUPAB
37 ROUT
38 GOUT
39 BOUT
40 VRD
41 RIN
42 GIN
43 BIN
44 FBLIN
45 RIN2
46 GIN2
47 BIN2
48 FBLIN2
49 CLK20
50 HOUT
51 XTAL 1
52 XTAL 2
53 CIN 2/CRIN
54 CBIN
55 GNDAF
56 SGND
57 VRT
58 VSUPAF
59 VOUT
60 CIN1
61 VIN1
62 VIN2
63 VIN3
64 VIN4

13.5.TEA6415C

13.5.1.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 on the input. Each input can be used as a normal input or as a MAC or Chroma input (with
DC
external resistor bridge). All the switching possibilities are changed through the BUS. Driving 75Ω 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.

13.5.2.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
AK45 Service Manual
IN GNDAB
SUPPLY X
OUT LV
OUT LV
OUT LV
IN X
OUT VSUPAB
SUPPLY X
SUPPLY X
OUT VSUPAB
OUT VSUPAB
OUT VSUPAB
IN X
IN GNDAB
IN GNDAB
IN GNDAB
IN GNDAB
IN GNDAB
IN GNDAB
IN GNDAB
IN GNDAB
OUT LV
OUT X
IN X
OUT X
LV
IN LV
SUPPLY X
IN GNDAF
IN X
SUPPLY X
OUT LV
IN VRT
IN VRT
IN VRT
IN VRT
IN VRT
10
Sense ADC Input
Ground, MADC ınput
Inverted Vertical Sawtooth Output
Vertical Sawtooth Output
Vertical Parabola Output
Reference Input for RGB DACs
Analog Scan Velocity Modulation Output
Analog Ground Backend
Analog Supply Voltage (5.0V) Backend
Analog Red Output
Analog Green Output
Analog Blue Output
DAC Reference
Analog Red Input
Analog Green Input
Analog Blue Input
Fast Blank Input
Analog Red Input2
Analog Green Input2
Analog Blue Input2
Fast Blank Input2
20.25 MHz System Clock Output
Horizontal Drive Output
Analog Crystal Input
Analog Crystal Output
Analog Chroma 2/Component C
Component C Input
B
Analog Ground Frontend
Signal Ground for Analog Input
Reference Voltage Top, Video ADC
Analog Supply Voltage (5.0V) Frontend
Analog Video Output
Analog Chroma 1 Input
Analog Video 1 Input
Analog Video 2 Input
Analog Video 3 Input
Analog Video 4 Input
Input
R
17/12/2007