參數(shù)資料
型號(hào)： ADV7197KST
廠商： ANALOG DEVICES INC
元件分類(lèi)： 消費(fèi)家電
英文描述： Multiformat HDTV Encoder with Three 11-Bit DACs
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP52
封裝： PLASTIC, MQFP-52
文件頁(yè)數(shù)： 18/20頁(yè)
文件大?。?/td> 229K
代理商： ADV7197KST
REV. 0
ADV7197
–18–
Video Output Buffer and Optional Output Filter
Output buffering is necessary in order to drive output devices,
s
uch as HDTV monitors.
Analog Devices produces a range of suitable op amps for this
application. A suitable op amp would be the AD8057. More
information on line driver buffering circuits is given in the rel-
evant op amp data sheets.
An optional analog reconstruction LPF might be required as an
antialias filter if the ADV7197 is connected to a device that
requires this filtering.
The Eval ADV7196/ADV7197EB evaluation board uses the
ML6426 Microlinear IC, which provides buffering and low-pass
filtering for HDTV applications.
The Eval ADV7196/ADV7197EB Rev. B and Rev. C evaluation
boards use the AD8057 as a buffer and a 6th order LPF.
The Application Note, AN-TBD, describes in detail these two
designs and should be consulted when designing external filter
and buffers for Analog Devices Video Encoders.
ADV7197
DAC A
DAC B
DAC C
LPF
AD8057
5V
75
0.1 F
0.1 F
5V
10 F
75 COAX
10 F
75
LPF
AD8057
–
5V
0.1 F
0.1 F
+5V
10 F
75 COAX
10 F
75
AD8057
–
5V
0.1 F
0.1 F
+5V
10 F
75 COAX
10 F
75
LPF
HDTV MONITOR
75
75
Figure 25. Output Buffer and Optional Filter
To calculate the output full-scale current and voltage, the fol-
lowing equations should be used:
V
OUT
=
I
OUT
×
R
LOAD
I
OUT
= (
V
REF
×
K
)/
R
SET
where:
K
= 5.66 (for input ranges 64–940, 64–960, output standards
EIA770.3)
K
= 6.46 (for input ranges 0–1023, output standards
RS170/343A
V
REF
= 1.235 V.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7197KSZ 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:MULTI-FORMAT HDTV ENCODER, 3 11-BIT DACS - Bulk
ADV7202 制造商:AD 制造商全稱:Analog Devices 功能描述:Simultaneous Sampling Video Rate Codec
ADV7202KST 制造商:Rochester Electronics LLC 功能描述:27MHZ DTV PICTURE IN PICTURE CODEC I.C. - Bulk 制造商:Analog Devices 功能描述:
ADV7202KSTZ 功能描述:IC CODEC VIDEO 10BIT 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類(lèi)型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
ADV7280ABCPZ-M 功能描述:10-BIT SD VIDEO DECODER 制造商:analog devices inc. 系列:- 包裝:托盤(pán) 零件狀態(tài):在售 類(lèi)型:視頻 數(shù)據(jù)接口:I2C，串行 分辨率（位）:10 b ADC/DAC 數(shù):1 / 0 三角積分:無(wú) 信噪比，ADC/DAC（db）（典型值）:- 動(dòng)態(tài)范圍，ADC/DAC（db）（典型值）:- 電壓 - 電源，模擬:1.71 V ~ 1.89 V 電壓 - 電源，數(shù)字:1.71 V ~ 1.89 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:32-WFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:32-LFCSP-WQ（5x5） 標(biāo)準(zhǔn)包裝:1
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