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參數(shù)資料
| 型號： | BUF01900AIDRCR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封裝： | 3 X 3 MM, 0.90 MM HEIGHT, GREEN, PLASTIC, SON-10 |
| 文件頁數(shù)： | 25/26頁 |
| 文件大?。?/td> | 662K |
| 代理商： | BUF01900AIDRCR |
BUF01900
BUF01901
SBOS337A OCTOBER 2006 REVISED OCTOBER 2006
www.ti.com
8
BUF01901: USING EXTERNAL VCOM BUFFER
Many LCD panel modules use gamma buffers, such as
TI’s BUFxx704, BUFxx703, BUF11702 and the new
BUF11705, that already include an integrated VCOM driver.
Some other LCD modules use more complicated com-
pensation schemes that require an external high-speed
VCOM op amp. BUF01901 is optimized for lowest cost and
is intended to be used with an external VCOM buffer or op
amp. Figure 16 illustrates a typical configuration of the
BUF01901 with the BUF11705.
ON-CHIP NONVOLATILE MEMORY
The BUF0190x is optimized for the smallest die size avail-
able and consequently the lowest cost to support high vol-
ume production. The on-chip OTP (one-time-program-
mable) memory helps to achieve significant die size
reduction over EEPROM memory technology. This reduc-
tion is partly because of the smaller area of the OTP
memory cell, but also a result of the fact that an EEPROM
requires a high programming voltage typically generated
with an onboard charge pump. OTP memory technology
does not require the higher programming voltage; conse-
quently, no charge pump is needed, resulting in a smaller
and lower-cost solution.
During production, the VCOM voltage is typically adjusted
only once. However, to allow for programming errors and
rework, the BUF0190x supports a total of four write cycles
to the OTP memory. This capacity means that the pre-
viously programmed code in the OTP can be overwritten
a total of three times.
250k
BIAS
R
1
Voltage
Regulator
Analog
7V to 18V
Digital
2V to 5.5V
SDA
Input Control Logic
SCL
A0
10Bit
DAC
4x OTP
ROM
Switch
Control
P
ro
g
ra
m
C
omm
and
BUF01901
Gamma
References
BUF11704
V
COM
R
2
Figure 16. BUF01901 Typical Configuration
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BUF01900AIDRCRG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF01900AIDRCT | 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF01900AIDRCTG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF01900AIPW | 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF01900AIPWG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Gen for VCOM Adj RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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