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VP531E

更新时间： 2024-09-25 22:15:35
品牌 Logo 应用领域
MITEL 编码器
页数 文件大小 规格书
16页 180K
描述
NTSC/PAL Digital Video Encoder

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中文翻译

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VP531E 数据手册

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VP531E/VP551E  
NTSC/PAL Digital Video Encoder  
Advance Information  
Supersedes DS4573 1.4 May 1997 edition  
DS4573 - 2.3 October1998  
The VP531/VP551 converts digital Y, Cr, Cb, data into  
analog NTSC/PAL composite video and S-video signals  
The outputs are capable of driving doubly terminated 75  
ohm loads with standard video levels.  
The device accepts data inputs complying with CCIR  
Recommendation 601 and 656. The data is time multiplexed  
on an 8 bit bus at 27MHz and is formatted as Cb, Y, Cr, Y  
(i.e. 4:2:2). The video blanking and sync information from  
REC 656 is included in the data stream when the VP531 is  
working in slave mode.  
The output pixel rate is 27MHz and the input pixel rate  
is half this frequency, i.e. 13.5MHz.  
All necessary synchronisation signals are generated  
internally when the device is operating in master mode. In  
slave mode the device will lock to the TRS codes or the HS  
and VS inputs.  
PIN 64  
The rise and fall times of sync, burst envelope and  
video blanking are internally controlled to be within  
composite video specifications.  
PIN 1  
GP64  
Two 9 bit digital to analog converters (DACs) are used  
to convert the digital luminance and chrominance data into  
analog signals. An inverted composite video signal is  
generated by summing the complementary current outputs  
of each DAC. An internally generated reference voltage  
provides the biasing for the DACs.  
Fig.1 Pin connections (top view)  
PIN  
1
2
3
4
5
6
7
8
FUNCTION  
VDD  
PIN  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
FUNCTION  
VDD  
GND  
RESET  
REFSQ  
GND  
VDD  
GND  
D0 (VS I/O)  
D1 (HS I/O)  
D2 (FC0 O/P)  
D3 (FC1 O/P)  
D4 (FC2 O/P)  
D5  
FEATURES  
■ Converts Y, Cr, Cb data to analog composite video and  
PD7  
PD6  
S-video  
■ Supports CCIR recommendations 601 and 656  
■ All digital video encoding  
9
D6 (SCSYNC I/P)  
D7 (PALID I/P)  
GND  
PD5  
PD4  
PD3  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
■ Selectable master/slave mode for sync signals  
■ Switchable chrominance bandwidth  
■ Switchable pedestal with gain compensation  
■ SMPTE 170M NTSC or CCIR 624 PAL compatible  
outputs  
VDD  
PD2  
GND  
PD1  
GND  
PD0  
PXCK  
GND  
■ GENLOCK mode  
■ I2C bus serial microprocessor interface  
■ VP531E supports Macrovision anti-taping format REV  
6.1 in PAL and REV 7.01 in NTSC  
VDD  
VDD  
CLAMP  
COMPSYNC  
GND  
VDD  
TDO  
TDI  
TMS  
TCK  
GND  
AGND  
VREF  
DACGAIN  
COMP  
AVDD  
LUMAOUT  
AGND  
COMPOUT  
AGND  
CHROMAOUT  
AVDD  
N/C  
APPLICATIONS  
■ Digital Cable TV  
■ Digital Satellite TV  
■ Multi-media  
■ Video games  
■ Karaoke  
SA1  
SA2  
SCL  
■ Digital VCRs  
ORDERING INFORMATION  
VP531E/CG/GP1N  
VP551E/CG/GP1N  
VDD  
N/C  
SDA  
GND  
VDD  
AVDD  
AVDD  
N/C  
1234567...16

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