參數(shù)資料
型號(hào)： GS4910BCNE3
廠商： Gennum Corporation
英文描述： HD/SD/Graphics Clock and Timing Generator with GENLOCK
中文描述： 高清/標(biāo)清/圖形時(shí)鐘和定時(shí)發(fā)生器鎖相
文件頁數(shù)： 66/113頁
文件大?。?/td> 1017K
代理商： GS4910BCNE3
GS4911B/GS4910B Data Sheet
36655 - 2
April 2006
66 of 113
The external 10FID input pin may be used to resynchronize other audio clock
frequencies, according to
Table 3-10
, by applying an active signal during the
reference HSYNC of line 1 of the appropriate video frame. Please see
Section 3.4.2 on page 44
for more details on the 10FID input pin.
In the case where 10FID is not present as a reference signal, the GS4911B will
automatically generate an AFS pulse appropriate to the format selected, and use
it to create an audio frame sequence.
Host Interface Control of AFS and 10FID
Alternatively, the user may program the device via the host interface to re-time the
audio frame sequence and 10 field-ID. Using register 1Ah, a pulse may be
generated to reset the AFS and/or 10FID dividers at the start of an output video
frame (see
Section 3.12.3 on page 79
).
If using the host interface to reset the AFS pulse, the device may be configured to
ignore the input 10FID reference pin. To disable the signal on the external 10FID
pin from resetting the AFS output pulse, set bit 0 of the Audio_Control register
HIGH.
If using the host interface to reset the 10FID pulse, the external 10FID pin must be
grounded.
Table 3-10: Audio Sampling Frequency to Video Frame Rate Synchronization
Audio Samples per Video Frame
Audio Sample Rate (kHz)
24fps
25fps
29.97fps
30fps
50fps
59.94fps
60fps
32
4000/3
1280
16016/15
3200/3
640
8008/15
1600/3
44.1
3675/2
1764
147147/100
1470
882
147147/200
735
48
2000
1920
8008/5
1600
960
4004/5
800
* fps = frames per second.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS4911ACNE3 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述:
GS4911B 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HD/SD/Graphics Clock and Timing Generator with GENLOCK
GS4911B_09 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HD/SD/Graphics Clock and Timing Generator with GENLOCK
GS4911BCNE3 功能描述:IC RE-TIMER RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
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