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| 型号： | BT864AKPF |
| 英文描述： | Color Encoder Circuit |
| 中文描述： | 颜色编码器电路 |
| 文件页数： | 11/76页 |
| 文件大小： | 1050K |
| 代理商： | BT864AKPF |
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field) and resets the I
2
C interface (but does not reset I
2
C registers). RESET*
must be a logical one for normal operation.
100138B
Conexant
1-1
1
1.0 Circuit Description
1.1 Pin Descriptions
Pin names, input/output assignments, numbers, and descriptions are listed in
Table 1-1
.
Figure 1-1
illustrates the Bt864A/865A pinout diagram, and
Figure 1-2
details the block diagram.
Table 1-1. Pin Assignments
(1 of 3)
Pin Name
I/O
Pin #
Description
CLK
I
43
2x pixel clock input (TTL compatible).
RESET*
I
47
Reset control input (TTL compatible). A logical zero disables and resets video
timing (horizontal, vertical, subcarrier counters to the start of VSYNC of first
BLANK*
I
48
Composite blanking control input (TTL compatible). BLANK* is registered on
the rising edge of CLK. The P[7:0] and Y[7:0] inputs are ignored while BLANK*
is a logical zero.
VSYNC*
I/O
49
Vertical sync input/output (TTL compatible). As an output (master mode
operation), VSYNC* is output following the rising edge of CLK. As an input
(slave mode operation), VSYNC* is registered on the rising edge of CLK.
HSYNC*
I/O
50
Horizontal sync input/output (TTL compatible). As an output (master mode
operation), HSYNC* is output following the rising edge of CLK. As an input
(slave mode operation), HSYNC* is registered on the rising edge of CLK.
P[7:0]
I
35
–
28
YCrCb pixel inputs (TTL compatible) in 8-bit YCrCb mode. CrCb pixel inputs
(TTL compatible) in 16-bit YCrCb mode. A higher index corresponds to a greater
bit significance.
Y[7:0]
I
25, 24, 21
–
16
Y pixel inputs (TTL compatible) in 16-bit YCrCb mode. Y[7] enables internal
color bars when operating in 8-bit YCrCb mode. A higher index corresponds to a
greater bit significance.
(1)
TTXDAT
I
27
Teletext bit stream input (TTL compatible).
(1)
TTXREQ
O
38
Teletext request output (TTL compatible).
ALTADDR
I
26
Alternate slave address input (TTL compatible). A logical one configures the
device to respond to an I
2
C address of 0x88; a logical zero configures the device
to respond to an I
2
C address of 0x8A.
(1)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BT864AKRF | 制造商:CONEXANT 制造商全称:CONEXANT 功能描述:YCrCb to NTSC/PAL Digital Video Encoder |
| BT864KPF | 制造商:BT 功能描述:COLOR SIGNAL ENCODER, PQFP52 |
| BT864KPF-ES1 | 制造商:BT 功能描述:864KPF-ES1 |
| BT865A | 制造商:CONEXANT 制造商全称:CONEXANT 功能描述:High Performance YCrCb to NTSC/PAL Digital Video Encoders |
| BT865AKPF | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Color Encoder Circuit |
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