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參數(shù)資料
| 型號： | EVAL-ADV7391EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 77/108頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR ADV7391 ENCODER |
| 標準包裝： | 1 |
| 系列： | Advantiv® |
| 主要目的： | 視頻，視頻編碼器 |
| 已用 IC / 零件： | ADV7391 |
| 已供物品： | 板 |
| 相關產品： | ADV7391BCPZ-REEL-ND - IC VIDEO ENCODER SD/HD 32-LFCSP ADV7391BCPZ-ND - IC ENCODER VIDEO W/DAC 32LFCSP |
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ADV7390/ADV7391/ADV7392/ADV7393
Data Sheet
Rev. G | Page 70 of 108
Figure 90. Output Filter Plot for SD, 16× Oversampling
Figure 91. Output Filter Plot for ED, 8× Oversampling
Figure 92. Output Filter Plot for HD, 4× Oversampling
PRINTED CIRCUIT BOARD (PCB) LAYOUT
The ADV739x is a highly integrated circuit containing both
precision analog and high speed digital circuitry. It is designed
to minimize interference effects on the integrity of the analog
circuitry by the high speed digital circuitry. It is imperative that
these same design and layout techniques be applied to the
system-level design so that optimal performance is achieved.
The layout should be optimized for lowest noise on the
ADV739x power and ground planes by shielding the digital
inputs and providing good power supply decoupling.
It is recommended to use a 4-layer printed circuit board with
ground and power planes separating the signal trace layer and
the solder side layer.
Component Placement
Component placement should be carefully considered to
separate noisy circuits, such as clock signals and high speed
digital circuitry, from analog circuitry.
The external loop filter components and components connected
to the COMP and RSET pins should be placed as close as possible
to, and on the same side of the PCB as, the ADV739x. Adding
vias to the PCB to get the components closer to the ADV739x is
not recommended.
It is recommended that the ADV739x be placed as close as
possible to the output connector, with the DAC output traces as
short as possible.
The termination resistors on the DAC output traces should be
placed as close as possible to and on the same side of the PCB as
the ADV739x. The termination resistors should overlay the
PCB ground plane.
External filter and buffer components connected to the DAC
outputs should be placed as close as possible to the ADV739x to
minimize the possibility of noise pickup from neighboring
circuitry and to minimize the effect of trace capacitance on
output bandwidth. This is particularly important when
operating in low-drive mode (RSET = 4.12 k, RL = 300 ).
Power Supplies
It is recommended that a separate regulated supply be provided
for each power domain (VAA, VDD, VDD_IO, and PVDD). For
optimal performance, linear regulators rather than switch mode
regulators should be used. If switch mode regulators must be
used, care must be taken with regard to the quality of the output
voltage in terms of ripple and noise. This is particularly true for
the VAA and PVDD power domains. Each power supply should be
individually connected to the system power supply at a single
point through a suitable filtering device, such as a ferrite bead.
0
–80
–70
–60
–50
–40
–30
–20
–10
0
–30
–60
–90
–120
–150
–180
–210
–240
1M
10M
100M
FREQUENCY (Hz)
CIRCUIT FREQUENCY RESPONSE
1G
GROUP DELAY (Seconds)
PHASE (Degrees)
MAGNITUDE (dB)
21n
18n
15n
12n
9n
6n
3n
0
24n
G
AI
N
(
d
B)
06234-
089
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1M
10M
100M
1G
FREQUENCY (Hz)
CIRCUIT FREQUENCY RESPONSE
MAGNITUDE (dB)
GROUP DELAY (Seconds)
PHASE
(Degrees)
G
AI
N
(
d
B)
320
240
160
80
0
–80
–160
–240
480
400
14n
12n
10n
8n
6n
4n
2n
0
18n
16n
06234-
090
0
–50
1
FREQUENCY (MHz)
CIRCUIT FREQUENCY RESPONSE
G
AI
N
(
d
B)
P
HAS
E
(
Deg
rees)
10
100
–10
–20
–30
–40
200
–200
120
40
–40
–120
GROUP DELAY (Seconds)
PHASE
(Degrees)
MAGNITUDE (dB)
06234-
091
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-ADV7392EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| EVAL-ADV7393EBZ | 功能描述:BOARD EVAL FOR ADV7393 ENCODER RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:Advantiv® 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-ADV739XFEZ | 功能描述:BOARD EVAL FOR ADV739XFEZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:Advantiv® 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-ADV7400AEBM | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit Intergrated Multiformat SDTV/HDTV Video Decoder and RGB Graphics Digitizer |
| EVAL-ADV7400EBM | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
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