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參數(shù)資料
| 型號： | SDA9220-5 |
| 廠商： | SIEMENS A G |
| 元件分類： | 消費家電 |
| 英文描述： | Memory Sync Controller III |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 文件頁數(shù)： | 4/42頁 |
| 文件大?。?/td> | 1474K |
| 代理商： | SDA9220-5 |
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SDA 9220-5
Semiconductor Group
120
The standard conversion (SC) function can be activated via pin NW
G
The following correlation exists:
Low level at pin NW:
High level at pin NW:
If the standard conversion is switched on, there is a 100-(120-) Hz field frequency in the 50-
(60)-Hz standard.
Field sequence with SC:
A(
α
) A(
α
)
Field sequence without SC:
A(
α
)
Mode without standard conversion
Mode with standard conversion
B(
β
) B(
β
)
1)
B(
β
)
The following functions can be set on the
I
2
C Bus
2)
interface:
G
Still
Field sequence with SC and interlace:
A(
β
) A(
α
) A(
β
) A(
α
)
or B(
α
) B(
β
) B(
α
) B(
β
)
A(
α
) A(
α
) A(
α
) A(
α
)
or B(
β
) B(
β
) B(
β
) B(
β
)
A(
α
) A(
α
)
or B(
β
) B(
β
)
Field sequence with SC and without interlace:
Field sequence without SC and without interlace:
G
Teletext text mode:
A
VT
(
α
) A
VT
(
α
) A
VT
(
α
) A
VT
(
α
)
or: A
VT
(
β
) A
VT
(
α
) A
VT
(
β
) A
VT
(
α
)
Teletext mixed mode:
with SC
without SC
G
Teletext field mode:
A
VT
(
α
) A
VT
(
α
) A
VT
(
β
) A
VT
(
β
)
A
VT
(
α
)
In this mode every second field is written to the field memory.
The display raster is freely selectable. Although the vertical
resolution of the TV picture is slightly less in this mode, the
lack of background edge flicker improves the visual effect in
teletext mixed mode. An improvement in the picture can also
be achieved with VCR signals in the special modes. It is also
possible to select a particular field; this is useful for specific
requests.
Programmable between 0 and 32
μ
s in increments of approx.
300 ns (for delay equalization between picture generation and
deflection).
A
VT
(
β
)
G
HS2 phase:
G
Write operation delay owing to delay in the picture processor for noise reduction can be set
between 0 and 14 or 16 and 30 LL3X clocks.
G
When the color frame is used, the picture-in-picture and multi-picture modes have to be activated
without the software frame because the two are not identical.
G
The picture-in-picture and multi-picture modes cannot be switched on in the field mode; there
may otherwise be no gray backing for the frame function, depending on the field. The field mode
can only be activated one field after the picture-in-picture or multi-picture mode.
1)
Field content
Vertical sync phase referred to horizontal sync pulse (raster)
2)
I
2
C Bus: Bus system patented by Philips
A(
α
)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SDA9251-2X | 868352-Bit Dynamic Sequential Access Memory for Television Applications (TV-SAM) |
| SDA9253 | 2.6 MBit Dynamic Sequential Access Memory for Television Applications (TV-SAM) |
| SDA9254-2 | 2.6 MBit Dynamic Sequential Access Memory for Television Applications (TV-SAM) with On-chip Noise Reduction Filter |
| SDA9257 | Clock Sync Generator |
| SDA9280 | ICs for Consumer Electronics |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SDA9251-2X | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:868352-Bit Dynamic Sequential Access Memory for Television Applications (TV-SAM) |
| SDA9253 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:2.6 MBit Dynamic Sequential Access Memory for Television Applications (TV-SAM) |
| SDA9254-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:2.6 MBit Dynamic Sequential Access Memory for Television Applications (TV-SAM) with On-chip Noise Reduction Filter |
| SDA9255 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:SRC-Scan Rate Converter SDA9255 |
| SDA9257 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Clock Sync Generator |
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