cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 95

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Table 1-26. CX25870 SCART Outputs for Different SCART Standards
Figure 1-34. CX25870 Driving a Type I SCART Connector (EN 50-049 and IEC 933-1 Compliant)
100381B
European EN50-049 SCART
CEI IEC 933-1 :
Luminance - Chrominance
Arrangement #2
NOTE(S):
(1)
(2)
Red/Green/Blue signals levels are from 0 V + 0.7 V peak-to-peak with 75 " load impedance.
The Luminance – Chrominance Outputs for SCART are equivalent to PAL-BDGHI S-Video. Therefore, OUTMODE[1:0] should
be programmed to 00, the EN_SCART bit should be reset to 0, and the OUTMUXA/B/C/D[1:0] bits adjusted according to
which DACs must transmit Luminance(Video[1]) and Chrominance(Video[2]).
CX25870/871
CVBS as Sync
CVBS/B
(1)
C/G
Y/R
BBC SCART Arrangement #1
RGB Standard
Y- C Standard
(2)
(1)
SCART: BBC SCART
75 "
connector
1%
RGB/CVBS or Y/C outputs to the TV’s SCART input. This cable can be procured
from various European electronic stores and comes in at least two different
arrangements. Consult the CEI IEC 933-1 specification (Audio, Video, and
Audiovisual systems-Interconnections and Matching Values) for a precise
illustration of their 21-contact SCART connector, video signal peak-peak values,
and cordset types.
Type II variety.
Type II SCART connector pinout arrangements.
A specialized cable and connector are required to connect the CX25870’s
The most common types of SCART connectors are the so-called Type I and
75 "
1%
75 "
1%
75 "
Figures 1-34
1%
Std Def
Std Def
Std Def
LPF
LPF
LPF
Conexant
Pin 15
Pin 15
Pin 15
Chroma
Red
3.3 V
and
3.3 V
Std Def
1-35
Pin 11
Pin 11
LPF
Green
3.3 V
x
c
illustrate the recommended Type I and
Pin 7
Pin 7
Pin 20
Luma
Blue
21
19
17
15
13
11
9
7
5
3
1
Connector
1.0 Functional Description
SCART
Pin 19 -Composite Out
(To Display)
Pin 19 - Composite Out
(To Display)
Composite/Blanking
1.3 Device Description
3.3 V
20
18
16
14
12
10
8
6
4
2
—
x
+3.3 V
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