- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16530 > EVAL-ADV7179EBZ (Analog Devices Inc)BOARD EVALUATION FOR ADV7179 PDF資料下載
參數(shù)資料
| 型號： | EVAL-ADV7179EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 33/52頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR ADV7179 |
| 設(shè)計(jì)資源： | ADV7174/79 Eval Brd Docs |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 視頻，視頻處理 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADV7179 |
| 主要屬性： | NTSC/PAL 數(shù)字視頻編碼器 |
| 次要屬性： | I²C 接口 |
| 已供物品： | 板 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁
ADV7174/ADV7179
Rev. B | Page 39 of 52
APPENDIX 1—BOARD DESIGN AND LAYOUT CONSIDERATIONS
POWER PLANES
The ADV7174/ADV7179 is a highly integrated circuit contain-
ing both precision analog and high speed digital circuitry. It has
been 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 high speed, accurate
performance is achieved. Figure 54 shows the analog interface
between the device and monitor.
The ADV7174/ADV7179 and any associated analog circuitry
should have its own power plane, referred to as the analog
power plane (VAA). This power plane should be connected to
the regular PCB power plane (VCC) at a single point through a
ferrite bead. This bead should be located within 3 inches of the
ADV7174/ADV7179.
The metallization gap separating the device power plane and
board power plane should be as narrow as possible to minimize
the obstruction to the flow of heat from the device into the
general board.
The layout should be optimized for lowest noise on the
ADV7174/ADV7179 power and ground lines by shielding the
digital inputs and providing good decoupling. The lead length
between groups of VAA and GND pins should be minimized to
reduce inductive ringing.
The PCB power plane should provide power to all digital logic
on the PC board, and the analog power plane should provide
power to all ADV7174/ADV7179 power pins and voltage
reference circuitry.
GROUND PLANES
The ground plane should encompass all ADV7174/ADV7179
ground pins, voltage reference circuitry, power supply bypass
circuitry for the ADV7174/ADV7179, the analog output traces,
and all the digital signal traces leading up to the ADV7174/
ADV7179. The ground plane is the board’s common ground
plane.
Plane-to-plane noise coupling can be reduced by ensuring that
portions of the regular PCB power and ground planes do not
overlay portions of the analog power plane unless they can be
arranged so that the plane-to-plane noise is common mode.
L1
(FERRITE BEAD)
5k
Ω
3.3 V (VCC)
150
Ω
5k
Ω
3.3 V (VCC)
MPU BUS
3–5, 35–39
0.1
μF
0.01
μF
0.1
μF
3.3 V (VAA)
0.1
μF
3.3V (VAA)
10k
Ω
3.3 V (VAA)
27MHz CLOCK
(SAME CLOCK AS USED BY
MPEG2 DECODER)
POWER SUPPLY DECOUPLING
FOR EACH POWER SUPPLY GROUP
10
μF
33
μF
GND
3.3 V
(VCC)
GND
ALSB
HSYNC
FIELD/VSYNC
BLANK
RESET
CLOCK
RSET
SDATA
SCLOCK
DAC B
DAC C
VAA
VREF
COMP
P7–P0
3.3 V (VAA)
75
Ω
75
Ω
75
Ω
SCRESET/RTC
ADV7174/ADV7179
UNUSED
INPUTS
SHOULD BE
GROUNDED
DAC A
100
Ω
100
Ω
RESET
TTX
TTXREQ
100k
Ω
100k
Ω
3.3 V (VCC)
TTX
TTXREQ
TELETEXT PULL-UP AND
PULL-DOWN RESISTORS
SHOULD ONLY BE USED
IF THESE PINS ARE NOT
CONNECTED
4k
Ω
3.3 V (VAA)
100nF
24
28
29
21
22
31
16
1
30
32
23
13
14
15
20
34
33
02980-A
-053
Figure 54. Recommended Analog Circuit Layout
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CK21251R5M-T | INDUCTOR 1.5UH LAYER 0805 |
| VE-J0N-EZ-S | CONVERTER MOD DC/DC 18.5V 25W |
| H1AXH-6436G | IDC CABLE - HSC64H/AE64G/X |
| SP1812R-334K | INDUCTOR PWR SHIELDED 330UH SMD |
| UPJ1H820MPD1TD | CAP ALUM 82UF 50V 20% RADIAL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-ADV7180-32EBZ | 功能描述:BOARD EVAL FOR ADV7180 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(biāo)準(zhǔn)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-ADV7180-48EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 4?? Oversampling SDTV Video Decoder |
| EVAL-ADV7180-48EBZ-8P-CAL | 制造商:Analog Devices 功能描述: |
| EVAL-ADV7180LFEB | 制造商:Analog Devices 功能描述:ADV7180 EVAL BOARD - Bulk |
| EVAL-ADV7180LFEBZ | 功能描述:BOARD EVAL FOR ADV7180 LFCSP 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(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。