参数资料
| 型号： | BD8132FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUP CORRECTION SSOP-B40 |
| 标准包装： | 2,000 |
| 系列： | * |
BD8132FV, BD8139AEFV
Technical Note
A serial signal (consisting of 10-bit gamma correction voltage values) input using the serial interface or I C bus interface is
● Block Operation
? VDAC Amp
The VDAC Amp amplifies the voltage applied to REFIN by 0.5x and outputs it to the VDAC pin. Connect a 1 μF phase
compensation capacitor to the VDAC pin.
? DAC LOGIC
The DAC LOGIC converts the 10-bit digital signal read to the register to a voltage.
? Amp
The Amp amplifies the voltage output from the DAC LOGIC by 2x. Input includes a sample and hold function and is
refreshed by the OSC.
? OSC
The OSC generates the frequency that determines the Amp's refresh time.
External input can be selected using serial input. (For the BD8139AEFV, external input is selected using the external pin.)
? Power On Reset
When the digital power supply DVCC is activated, each IC generates a reset signal to initialize the serial interface,
auto-read functionality, and registers.
Adding a 1,000 pF capacitor to the CT pin ensures that reset operation can be performed reliably, without regard to the
speed with which the power supply starts up.
? TSD (Thermal Shut Down)
The TSD circuit turns output off when the chip temperature reaches or exceeds approximately 175°C in order to prevent
thermal destruction or thermal runaway. When the chip returns to a specified temperature, the circuit resets.
The TSD circuit is designed only to protect the IC itself. Application thermal design should ensure operation of the IC
below the thermal shutdown detection temperature of approximately 175°C.
? Register
2
held for each register address. Data is initialized by the reset signal generated during a power-on reset.
? Serial I/F(BD8132FV)
The serial interface uses a 3-line serial data format (LATCH, CLK, SDIN). It is used to set gamma correction voltages,
specify register addresses, and select OSC I/O.
? 2 wire serial I/F(BD8139AEFV)
The serial interface uses a 2-line serial data format (SCL, SDA). It is used to set gamma correction voltages and specify
register addresses.
? Autoread
The BD8132FV uses the R/W, CLK, CS, and MEMDO pins to enable automatic reading of the IC's 1 kbit microwire type
external memory.
The BD8139AEFV uses the SCL and SDA pins to enable automatic reading of the 2 wire serial bus format external
memory.
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
8/20
2009.07 - Rev.B
相关PDF资料 |
PDF描述 |
|---|---|
| BD8157EFV-E2 | IC POWER SUP 1-CH HTSSOP-B20 |
| BD8314NUV-E2 | IC REG BOOST ADJ 2.5A SON10 |
| BD8621EFV-E2 | IC PWR SUPP 3A W/FET HTSSOP-B20 |
| BD8622EFV-E2 | IC PWR SUPP 3A W/FET HTSSOP-B20 |
| BD8629FS-E2 | IC PWR SUPP 2A W/FET SSOP-A16 |
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 |
发布紧急采购，3分钟左右您将得到回复。