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參數(shù)資料
| 型號(hào)： | ADV7391BCPZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 59/108頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ENCODER VIDEO W/DAC 32LFCSP |
| 產(chǎn)品變化通告： | ADV734x, ADV739x Feature Improvement |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 視頻編碼器 |
| 應(yīng)用： | 機(jī)頂盒，視頻播放器，顯示器 |
| 電壓 - 電源，模擬： | 2.6 V ~ 3.46 V |
| 電壓 - 電源，數(shù)字： | 1.71 V ~ 1.89 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-VQ（5x5） |
| 包裝： | 托盤 |
| 配用： | EVAL-ADV7391EBZ-ND - BOARD EVAL FOR ADV7391 ENCODER |
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ADV7390/ADV7391/ADV7392/ADV7393
Data Sheet
Rev. G | Page 54 of 108
FILTERS
Table 42 shows an overview of the programmable filters available
on the ADV739x.
Table 42. Selectable Filters
Filter
Subaddress
SD Luma LPF NTSC
0x80
SD Luma LPF PAL
0x80
SD Luma Notch NTSC
0x80
SD Luma Notch PAL
0x80
SD Luma SSAF
0x80
SD Luma CIF
0x80
SD Luma QCIF
0x80
SD Chroma 0.65 MHz
0x80
SD Chroma 1.0 MHz
0x80
SD Chroma 1.3 MHz
0x80
SD Chroma 2.0 MHz
0x80
SD Chroma 3.0 MHz
0x80
SD Chroma CIF
0x80
SD Chroma QCIF
0x80
SD PrPb SSAF
0x82
ED/HD Sinc Compensation Filter
0x33
ED/HD Chroma SSAF
0x33
SD Internal Filter Response
Subaddress 0x80, Bits[7:2]; Subaddress 0x82, Bit 0
The Y filter supports several different frequency responses,
including two low-pass responses, two notch responses, an
extended (SSAF) response with or without gain boost atten-
uation, a CIF response, and a QCIF response. The PrPb filter
supports several different frequency responses, including six
low-pass responses, a CIF response, and a QCIF response, as
shown in Figure 38 and Figure 39.
If SD Luma SSAF gain is enabled (Subaddress 0x87, Bit 4), there
are 13 response options in the range 4 dB to +4 dB. The desired
response can be programmed using Subaddress 0xA2. Variation
in frequency responses is shown in Figure 35 to Figure 37.
In addition to the chroma filters listed in Table 42, the ADV739x
contains an SSAF filter that is specifically designed for the color
difference component outputs, Pr and Pb. This filter has a cutoff
frequency of ~2.7 MHz and a gain of –40 dB at 3.8 MHz (see
Figure 66). This filter can be controlled with Bit 0 of Sub-
address 0x82, Bit 0.
Figure 66. PrPb SSAF Filter
If this filter is disabled, one of the chroma filters shown in
Table 43 can be selected and used for the CVBS or luma/
chroma signal.
Table 43. Internal Filter Specifications
Filter
Pass-Band
Ripple (dB)1
3 dB Bandwidth (MHz)2
Luma LPF NTSC
0.16
4.24
Luma LPF PAL
0.1
4.81
Luma Notch NTSC
0.09
2.3/4.9/6.6
Luma Notch PAL
0.1
3.1/5.6/6.4
Luma SSAF
0.04
6.45
Luma CIF
0.127
3.02
Luma QCIF
Monotonic
1.5
Chroma 0.65 MHz
Monotonic
0.65
Chroma 1.0 MHz
Monotonic
1
Chroma 1.3 MHz
0.09
1.395
Chroma 2.0 MHz
0.048
2.2
Chroma 3.0 MHz
Monotonic
3.2
Chroma CIF
Monotonic
0.65
Chroma QCIF
Monotonic
0.5
1
Pass-band ripple is the maximum fluctuation from the 0 dB response in the
pass band, measured in decibels. The pass band is defined to have 0 Hz to fc
(Hz) frequency limits for a low-pass filter and 0 Hz to f1 (Hz) and f2 (Hz) to
infinity for a notch filter, where fc, f1, and f2 are the 3 dB points.
2
3 dB bandwidth refers to the 3 dB cutoff frequency.
FREQUENCY (MHz)
0
G
AI
N
(
d
B)
–10
–30
–50
–60
–20
–40
6
5
4
3
2
1
0
EXTENDED (SSAF) PrPb FILTER MODE
06234-
067
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7391BCPZ-REEL | 功能描述:IC VIDEO ENCODER SD/HD 32-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7391EBZ | 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 |
| ADV7391WBCPZ | 制造商:Analog Devices 功能描述: |
| ADV7391WBCPZ-RL | 制造商:Analog Devices 功能描述: |
| ADV7392 | 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 |
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