参数资料
| 型号： | BD8132FV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 12/23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
[BD8139AEFV]
● Serial communications
The 2 wire serial control block consists of a register that stores data from the SCL and SDA pins and a DAC circuit that
receives the output from this register and provides adjusted voltages to other IC blocks.
When the IC's power supply is activated, the reset function operates to set the register to a preset value.
SCL
Auto-read
+
EEPROM
Word address setting
A1
A2
SDA
Acknowledge
Shift register
V0 to VA registers
CT
DAC
Parity check
STAN/INC
Fig. 29 2 wire serial Control Block Diagram
(1) 2 wire serial timing chart
Slave mode (SLAVE/AR = low; supports write mode only; A0 = low)
Fig. 30 2 wire serial Timing Chart (Slave)
Of device addresses A7 to A0, A7 to A3 and A0 are specific to the gamma correction voltage generation IC and should
be set as follows: (A7 to A0) = 11101(A2)(A1)0.
A1 and A2 can be set externally. Because these signals are pulled down internally, they are set to 0 when in the open
state. When setting them to 1, connect them to the DVcc power supply. For this reason, A1 and A2 can be used to
create 4 setting combinations. When using only slave mode, a maximum of 4 BD8139AEFV ICs can be connected to
the 2 wire serial line.
The lower 4 bits of the second byte are used to store the register address. The following table describes the
correspondence between register addresses and amp output. The third and fourth bytes are used to store the gamma
correction voltage setting. The LSB acts as a parity check bit. The method for setting the LSB is described below.
Register name
Register 0
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Register 8
Register 9
Register A
Register 0-A
W3
0
0
0
0
0
0
0
0
1
1
1
1
Address
W2 W1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0 0
0 0
0 1
1 1
W0
0
1
0
1
0
1
0
1
0
1
0
1
Behavior when data increases
V0 voltage value increases
V1 voltage value increases
V2 voltage value increases
V3 voltage value increases
V4 voltage value increases
V5 voltage value increases
V6 voltage value increases
V7 voltage value increases
V8 voltage value increases
V9 voltage value increases
Vcom voltage value increases
V0-Vcom voltage value increases
Preset value
Data (9:0)
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
00_0000_0000
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
12/20
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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