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參數資料
| 型號： | ADV7343 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat Video Encoder Six, 11-Bit, 297 MHz DACs |
| 中文描述： | 六多格式視頻編碼器，11位，297兆赫數模轉換器 |
| 文件頁數： | 52/88頁 |
| 文件大小： | 1053K |
| 代理商： | ADV7343 |
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ADV7342/ADV7343
FILTERS
Table 39 shows an overview of the programmable filters
available on the ADV7342/ADV7343.
Rev. 0 | Page 52 of 88
Table 39. Selectable Filters
Filter
SD Luma LPF NTSC
SD Luma LPF PAL
SD Luma Notch NTSC
SD Luma Notch PAL
SD Luma SSAF
SD Luma CIF
SD Luma QCIF
SD Chroma 0.65 MHz
SD Chroma 1.0 MHz
SD Chroma 1.3 MHz
SD Chroma 2.0 MHz
SD Chroma 3.0 MHz
SD Chroma CIF
SD Chroma QCIF
SD PrPb SSAF
ED/HD Chroma Input
ED/HD Sinc Compensation Filter
ED/HD Chroma SSAF
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
attenuation, 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 39 and Figure 40.
If SD SSAF gain is enabled (Subaddress 0x87, Bit 4), there are 13
response options in the 4 dB to +4 dB range. The desired response
can be programmed using Subaddress 0xA2. The variation of
frequency responses is shown in Figure 36 to Figure 38.
In addition to the chroma filters listed in Table 39, the ADV7342/
ADV7343 contain an SSAF filter 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 65). This filter can be controlled with Subaddress 0x82,
Bit
0.
Subaddress
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x80
0x82
0x33
0x33
0x33
FREQUENCY (MHz)
0
G
–10
–30
–50
–60
–20
–40
6
5
4
3
2
1
0
EXTENDED (SSAF) PrPb FILTER MODE
0
Figure 65. PrPb SSAF Filter
If this filter is disabled, one of the chroma filters shown in
Table 40 can be selected and used for the CVBS or luma/
chroma signal.
Table 40. Internal Filter Specifications
Filter
Luma LPF NTSC
Luma LPF PAL
Luma Notch NTSC
Luma Notch PAL
Luma SSAF
Luma CIF
Luma QCIF
Chroma 0.65 MHz
Chroma 1.0 MHz
Chroma 1.3 MHz
Chroma 2.0 MHz
Chroma 3.0 MHz
Chroma CIF
Chroma QCIF
Pass-Band
Ripple (dB)
1
0.16
0.1
0.09
0.1
0.04
0.127
Monotonic
Monotonic
Monotonic
0.09
0.048
Monotonic
Monotonic
Monotonic
3 dB Bandwidth (MHz)
2
4.24
4.81
2.3/4.9/6.6
3.1/5.6/6.4
6.45
3.02
1.5
0.65
1
1.395
2.2
3.2
0.65
0.5
1
Pass-band ripple is the maximum fluctuation from the 0 dB response in the
pass band, measured in dB. 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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7343BSTZ | 功能描述:IC ENCODER VIDEO W/DAC 64-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7343WBSTZ | 功能描述:IC ENCODER VID 12BIT DAC 64LQFP 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，Blu-Ray 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:64-LQFP 供應商器件封裝:64-LQFP（10x10） 標準包裝:1 |
| ADV7343WBSTZ-RL | 功能描述:Video Encoder IC DVD, Blu-Ray 64-LQFP (10x10) 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，Blu-Ray 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:64-LQFP 供應商器件封裝:64-LQFP（10x10） 標準包裝:1,500 |
| ADV7344 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Video Encoder Six 14-Bit Noise Shaped Video DACs |
| ADV7344BSTZ | 制造商:Analog Devices 功能描述: |
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