参数资料
| 型号： | BD8132FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 17/23页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUP CORRECTION SSOP-B40 |
| 标准包装： | 2,000 |
| 系列： | * |
BD8132FV, BD8139AEFV
● When it inputs V CC , it outputted the gamma output voltage.
0.9Vcc
0.1Vcc
Vcc
tVcc
V0
V1
Technical Note
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?
?
?
tref
Tref
V9
Fig. 36
DAC 1ch supports all gamma output amps by sample/hold function.
So, each amp operates reflesh by Tref.
Min. Typ. Max.
Tref 63 101 145
Unit : μsec
Reflesh time of each amp is following.
tref = Tref / 11ch
Under condition of the small difference between setting voltage of amp and slew rate of V CC is fast, when it inputs V CC , it is
possible that output voltage come from behind next output voltage.
V0 = VDAC × 2 ×
V1 = VDAC’ × 2 ×
n0 + 1
1024
n1+ 1
1024
(n0 : Setting voltage of 10bit)
VDAC’ = VDAC +
SR
2
× tref
(SR : Slew rate of V CC )
Condition of non-reverse-voltage is following
V0-V1>0
n0 + 1
n1 + 1
>1+
SR × tref
2VDAC
Under condition of the big difference between output voltage or slew rate of V CC is slow, reverse-voltage don’t occur much.
Worst condition is following.
n0 / n1 > 1.0469
Notice that the setting voltage between V0 and V1 is within 720mV.
It is possible for reverse of voltage in transition.
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? 2009 ROHM Co., Ltd. All rights reserved.
17/20
2009.07 - Rev.B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD8138EFV | 制造商:ROHM 制造商全称:Rohm 功能描述:y-correction IC for TFT-LCD Panel |
| BD8139AEFV | 制造商:ROHM 制造商全称:Rohm 功能描述:High-precision Gamma Correction ICs with built-in DAC |
| BD8139AEFV-E2 | 功能描述:IC GAMMA CORRECTION 40SSOP 制造商:rohm semiconductor 系列:- 包装:剪切带（CT） 零件状态:有效 类型:TFT-LCD 稳压器 应用:视频 安装类型:表面贴装 封装/外壳:40-VSSOP（0.213"，5.40mm 宽）裸焊盘 供应商器件封装:40-HTSSOP-B 标准包装:1 |
| BD8139EFV | 制造商:ROHM 制造商全称:Rohm 功能描述:y-correction IC for TFT-LCD Panel |
| BD814 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRANSISTOR | BJT | PNP | 45V V(BR)CEO | 2A I(C) | TO-202 |
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