參數(shù)資料
型號： LC74950BG
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA96
封裝： 6 X 6 MM, FBGA-96
文件頁數(shù)： 20/37頁
文件大?。?/td> 350K
代理商： LC74950BG
LC74950BG
No.A1647-27/37
2) Digital clamp
Registers related to digital clamp control
Name
Functions
Sub address
bit width
SELYCRGB
This register switches between the YCbCr input and RGB input.
0: YCbCr, 1: RGB
0x14
1
STDLEVY
YG digital clamp levels (SELYCRGB=0: Y, SELYCRGB=1: G)
The 9-bit (0-511) YG video signals are clamped by the values determined assuming the pedestal
levels (Y: STDLEVY[5:0] + 118, G: STDLEVY[5:0]).
Setting range: Y (118-181), G (0-63)
0x14
6
STDLEVCB
CBB digital clamp levels (SELYCRGB=0: CB, SELYCRGB=1: B)
The 9-bit (0-511) CBB video signals are clamped by the value determined assuming the center level
(STDLEVCB[5:0] + 225) for CB and the pedestal level (STDLEVCB[5:0]) for B.
Setting range: CB (225-288), B (0-63)
0x15
6
STDLEVCR
CRR digital clamp levels (SELYCRGB=0: CR, SELYCRGB=1: R)
The 9-bit (0-511) CRR video signals are clamped by the value determined assuming the center level
(STDLEVCR[5:0] + 225) for CR and the pedestal level (STDLEVCR[5:0]) for R.
Setting range: CR (225-288), R (0-63)
0x16
6
DCLINE
This sets the digital clamp update unit.
0: 1V, 1: 1H (used for testing)
0x15
1
FRAMEDC
[When the digital clamp update unit is 1V (DCLINE=0)]
This register sets the number of update frames (FRAMEDC[4:0] + 1).
Setting range: 0-31 (1 to 32 frames)
0x17
5
TCDIGCLP
This register sets the digital clamp time constant.
000: 1/1
001: 1/2
010: 1/4
011: 1/8
100: 1/16
101: 1/32
110: 1/64
111: 1/128
0x17
3
Digital clamp specifications
The 9-bit (0-511) video signals output from the ADC are clamped at the set digital clamp pulse position to the set
digital clamp level.
The digital clamp level setting values are given below.
Y=118+STDLEVY[5:0]
Cb/Cr=225+(STDLEVCB[5:0]/STDLEVCR[5:0])
R, G, B=STDLEVY[5:0]/STDLEVCB[5:0]/STDLEVCR[5:0]
Pedestal level setting value
Sink tip level
Pedestal level
Input signal
Sync level
511
0
Digital clamp pulse
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
LC74950BG-TLM-H 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
LC74980W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
LC74981W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
LC74982W 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:LCD TV Scan Converter IC
LC749870W 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Silicon gate NTSC/PAL/SECAM Digital Video Decoder
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