- 您现在的位置：买卖IC网 > PDF目录98166 > TB1305FG SYNC SEPARATOR IC, PQFP48 PDF资料下载
参数资料
| 型号： | TB1305FG |
| 元件分类： | 信号分离 |
| 英文描述： | SYNC SEPARATOR IC, PQFP48 |
| 封装： | 10 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-48 |
| 文件页数： | 6/33页 |
| 文件大小： | 659K |
| 代理商： | TB1305FG |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
TB1305FG, TB1308FG
2006-07-03
14
Sync separation level
The sync separation level is changed according to the ratio of H-sync width to one line and the connected resistance.
Typical sync separation levels for each format are as follows. Then, VGA-SEP=1 for VGA to UXGA.
HV-SEP = 0 (LOW)
HV-SEP = 1 (HIGH)
Format
R = 1.2 k
R = 1.5 k
R = 1.8 k
R = 1.2 k
R = 1.5 k
R = 1.8 k
625/50i
22
28
33
24
32
37
525/60i
22
28
34
24
31
37
625/50p
22
28
34
25
31
38
525/60p
21
27
32
24
30
36
1125/50i
31
39
45
40
49
54
1125/60i
26
33
39
34
43
50
750/50p
29
37
43
37
46
52
750/60p
24
31
37
32
40
47
1250/50i
25
32
37
32
41
47
1125/50p
36
45
51
45
54
58
1125/60p
31
39
45
39
49
55
VGA/60
15
19
23
16
21
25
SVGA/60
15
18
22
16
20
24
XGA/60
17
22
26
19
24
28
SXGA/60
27
33
39
30
37
43
Unit [%] ; where 286 mVp-p sync for 525/60i and 300 mVp-p sync for others
For “Sync on G” signal, HD-OUT is not output during V-sync period because there is no H-sync during V-sync period.
Furthermore, for Sync on G of XGA input, HD-OUT disappears during active video period caused by the internal V-BLK
mislocks.
The format detection and sync separation performances are changed due to the separation level set by HV-SEP,
VGA-SEP setting and/or the connected resistance with SYNC-IN pin. The careful evaluations are required to set the
separation level under consideration of expected input conditions such as a suppressed sync input, an input with V-sag
and APL (Average Picture Level) fluctuations.
Note on Sync input pin
If the AC-coupling circuit is put before the SYNC-IN pin, the picture on the screen may be not stable. This is because
the sync separation circuit is unable to follow the DC level fluctuation caused by APL (Average Picture Level) change in
the input signal, and the HD and/or VD output is unable to synchronize the input.
It is recommended to input signals via the DC-coupling buffer if necessary.
For the DC level fluctuation caused by APL change, the sync separation ability may be improved to change the
setting of HV-SEP, VGA-SEP and/or changing the resister R. Furthermore, adding a high-resistance around several
M
between SYNC-IN pin and GND (or Vcc) may improve the sync separation ability.
Adding DC restoration circuit such as a clamp circuit can be also effective for the improvement of DC level fluctuation.
Also, refer to Sync separation level descriptions.
相关PDF资料 |
PDF描述 |
|---|---|
| TB1311AFG | SYNC SEPARATOR IC, PQFP80 |
| TB1311AFG | SYNC SEPARATOR IC, PQFP80 |
| TB2132FNG | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO30 |
| TB2143FLG | 1 CHANNEL, VIDEO AMPLIFIER, PQCC16 |
| TB2173FTG | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TB1305FG(DRY) | 功能描述:视频开关 IC Comp Switch 2input 1output RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| TB1306FG | 制造商:Toshiba America Electronic Components 功能描述:ELECTRONIC COMPONENT |
| TB1308FG | 制造商:Toshiba America Electronic Components 功能描述:SYNC SEPARATOR IC, 48 Pin Plastic QFP |
| TB1308FG(DRY) | 功能描述:视频开关 IC Comp Switch 3input 1output RoHS:否 制造商:Texas Instruments 开关数量:4 开启电阻（最大值）:12 Ohms 传播延迟时间: 开启时间（最大值）: 关闭时间（最大值）: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WQFN-42 封装:Reel |
| TB130AW10 | 制造商:Panduit Corp 功能描述: |
发布紧急采购，3分钟左右您将得到回复。