參數(shù)資料
型號(hào): ADV7176A*
廠商: Analog Devices, Inc.
英文描述: High Quality. 10-Bit. Digital CCIR-601 to PAL/NTSC Video Encoder
中文描述: 較高的質(zhì)量。 10位。數(shù)字無(wú)線電咨詢委員會(huì)- 601的PAL / NTSC制式視頻編碼器
文件頁(yè)數(shù): 29/52頁(yè)
文件大小: 629K
ADV7175A/ADV7176A
–29–
REV. B
75
V
27
26
S VIDEO
31
32
5k
V
+5V (V
CC
)
150
V
24
5k
V
+5V (V
CC
)
MPU BUS
44
22
15
17
16
10, 19, 21
29, 43
18
23
34
38–42,
2–9, 12–14
1, 11, 20, 28, 30
0.1
m
F
0.01
m
F
0.1
m
F
+5V (V
AA
)
0.1
m
F
+5V (V
AA
)
10k
V
+5V (V
AA
)
27MHz CLOCK
(SAME CLOCK AS USED BY
MPEG2 DECODER)
POWER SUPPLY DECOUPLING
FOR EACH POWER SUPPLY GROUP
10
m
F
33
m
F
GND
L1
(FERRITE BEAD)
+5V
(V
CC
)
25
33
GND
ALSB
HSYNC
FIELD/
VSYNC
BLANK
RESET
CLOCK
R
SET
SDATA
SCLOCK
DAC B
DAC C
DAC D
V
AA
V
REF
COMP
P15–P0
+5V (V
AA
)
75
V
75
V
75
V
35 SCRESET/RTC
ADV7175A
ADV7176A
“UNUSED
INPUTS
SHOULD BE
GROUNDED”
DAC A
100
V
100
V
4k
V
+5V (V
AA
)
100nF
RESET
37 TTX
36 TTX REQ
100k
V
100k
V
+5V (V
CC
)
TTX
TTX REQ
TELETEXT PULLUP &
PULLDOWN RESISTORS
SHOULD ONLY BE USED
IF THESE PINS ARE NOT
CONNECTED
Figure 44. Recommended Analog Circuit Layout
T he circuit below can be used to generate a 13.5 MHz waveform using the 27 MHz clock and the
HSYNC
pulse. T his waveform is
guaranteed to produce the 13.5 MHz clock in synchronization with the 27 MHz clock. T his 13.5 MHz clock can be used if the
13.5 MHz clock is required by the MPEG decoder. T his will guarantee that the Cr and Cb pixel information is input to the
ADV7175A/ADV7176A in the correct sequence.
D
Q
CK
D
Q
CK
CLOCK
HSYNC
13.5MHz
Figure 45. Circuit to Generate 13.5 MHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7176AKS 制造商:Analog Devices 功能描述:Video Encoder 4DAC 10-Bit 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:VIDEO ENCODER+TELETEXT(NTSC/PAL)I.C. - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER
ADV7176AKSZ 制造商:Analog Devices 功能描述:Video Encoder 4DAC 10-Bit 44-Pin MQFP 制造商:Analog Devices 功能描述:IC VIDEO ENCODER
ADV7176KS 制造商:AD 制造商全稱:Analog Devices 功能描述:Integrated Digital CCIR-601 YCrCb to PAL/NTSC Video Encoder
ADV7177 制造商:AD 制造商全稱:Analog Devices 功能描述:Integrated Digital CCIR-601 to PAL/NTSC Video Encoder