- 您現在的位置：買賣IC網 > PDF目錄374047 > ADV7390 (Analog Devices, Inc.) Low Power, Chip Scale 10-Bit SD/HD Video Encoder PDF資料下載
參數資料
| 型號： | ADV7390 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| 中文描述： | 低功耗，芯片尺寸10位標清/高清視頻編碼器 |
| 文件頁數： | 62/96頁 |
| 文件大小： | 1209K |
| 代理商： | ADV7390 |
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頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁當前第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁
ADV7390/ADV7391/ADV7392/ADV7393
PRINTED CIRCUIT BOARD LAYOUT AND DESIGN
DAC CONFIGURATIONS
The ADV739x contains three DACs. All three DACs can be
configured to operate in full-drive mode. Full-drive mode is
defined as 34.7 mA full-scale current into a 37.5 Ω load, R
L
.
Full-drive is the recommended mode of operation for the DACs.
Alternatively, all three DACs can be configured to operate in low
drive mode. Low drive mode is defined as 4.33 mA full-scale
current into a 300 Ω load, R
L
.
The ADV739x contains a R
SET
pin. A resistor connected between
the R
SET
pin and AGND is used to control the full-scale output
current and, therefore, the output voltage levels of DAC 1, DAC 2,
and DAC 3. For full-drive operation, R
SET
must have a value
of 510 Ω and RL must have a value of 37.5 Ω. For low drive
operation, R
SET
must have a value of 4.12 kΩ, and R
L
must have
a value of 300 Ω.
The resistor connected to the R
SET
pin should have a 1%
tolerance.
The ADV739x contains a compensation pin, COMP. A 2.2 nF
compensation capacitor should be connected from the COMP
pin to V
AA
.
VIDEO OUTPUT BUFFER AND OPTIONAL
OUTPUT FILTER
An output buffer is necessary on any DAC that operates in low
drive mode (R
SET
= 4.12 kΩ, R
L
= 300 Ω). Analog Devices Inc.
produces a range of op amps suitable for this application, for
example, the
AD8061
. For more information about line driver
buffering circuits, see the relevant op amp data sheet.
An optional reconstruction (anti-imaging) low-pass filter (LPF)
may be required on the ADV739x DAC outputs. The filter
specifications vary with the application. The use of 16× (SD),
8× (ED), or 4× (HD) oversampling can remove the requirement
for a reconstruction filter altogether.
For applications requiring an output buffer and reconstruction
filter, the
ADA4430-1
and
ADA4411-3
integrated video filter
buffers should be considered.
Rev. 0 | Page 62 of 96
Table 52. ADV739x Output Rates
Input Mode
(0x01, Bits[6:4])
SD
Oversampling
Off
On
On
Off
On
On
Off
On
On
Output Rate (MHz)
27
108
216
27
108
216
74.25
148.5
297
(2×)
(8×)
(16×)
(1×)
(4×)
(8×)
(1×)
(2×)
(4×)
ED
HD
Table 53. Output Filter Requirements
Application
SD
Oversampling
2×
8×
16×
1×
4×
8×
1×
2×
4×
Cutoff
Frequency
(MHz)
> 6.5
> 6.5
> 6.5
> 12.5
> 12.5
> 12.5
> 30
> 30
> 30
Attenuation
–50 dB @
(MHz)
20.5
101.5
209.5
14.5
95.5
203.5
44.25
118.5
267
ED
HD
560
600
22pF
600
DAC
OUTPUT
75
BNC
OUTPUT
10μH
560
3
4
1
0
Figure 86. Example of Output Filter for SD, 16× Oversampling
560
6.8pF
600
6.8pF
600
DAC
OUTPUT
75
BNC
OUTPUT
4.7μH
560
3
4
1
0
Figure 87. Example of Output Filter for ED, 8× Oversampling
DAC
OUTPUT
390nH
33pF
33pF
75
500
300
75
BNC
OUTPUT
500
3
4
1
3
4
1
0
Figure 88. Example of Output Filter for HD, 4× Oversampling
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7390BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390BCPZ-REEL | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390EBZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391 | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7390BCBZ-A-RL | 功能描述:Video Encoder IC DVD, Game Consoles, Media Players 30-WLCSP (2.53x3) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態:有效 類型:視頻編碼器 應用:DVD，游戲控制臺，媒體播放器 電壓 - 電源，模擬:2.6 V ~ 3.46 V 電壓 - 電源，數字:1.71 V ~ 1.89 V 安裝類型:表面貼裝 封裝/外殼:30-WFBGA，WLCSP 供應商器件封裝:30-WLCSP（2.53x3） 標準包裝:5,000 |
| ADV7390BCPZ | 制造商:Analog Devices 功能描述: |
| ADV7390BCPZ-REEL | 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 |
| ADV7390EBZ | 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 |
| ADV7390WBCPZ | 功能描述:IC VIDEO ENCODER 10BIT 32LFCSP 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態:在售 類型:視頻編碼器 應用:DVD，游戲控制臺，媒體播放器 電壓 - 電源，模擬:2.6 V ~ 3.46 V 電壓 - 電源，數字:1.71 V ~ 1.89 V 安裝類型:表面貼裝 封裝/外殼:32-WFQFN 裸露焊盤，CSP 供應商器件封裝:32-LFCSP-WQ（5x5） 標準包裝:1 |
發布緊急采購，3分鐘左右您將得到回復。