- 您现在的位置：买卖IC网 > PDF目录16440 > EVAL-ADE5169EBZ-2 (Analog Devices Inc)BOARD EVALUATION FOR AD5169 PDF资料下载
参数资料
| 型号： | EVAL-ADE5169EBZ-2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 106/156页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD5169 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是 |
| 已用 IC / 零件： | ADE5169 |
| 主要属性： | 用于汇编语言和 C 代码的 IAR 工具 |
| 次要属性： | 隔离和非隔离输出选项 |
| 已供物品： | 板，软件 |
第1页第2页第3页第4页第5页第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页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页当前第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页
ADE5166/ADE5169/ADE5566/ADE5569
Data Sheet
Charge Pump
Voltage generation through the charge pump requires external
capacitors to store charge. The external connections to LCDVA,
?
?
?
Type of LCD: 5 V, 4× multiplexed with 1/3 bias, 96 segments
Voltage generation: internal charge pump
Refresh rate: 64 Hz
LCDVB, and LCDVC, as well as to LCDVP1 and LCDVP2, are
shown in Figure 90.
A 96-segment LCD with 4× multiplexing requires 96/4 = 24
segment lines. Sixteen pins, FP0 to FP15, are automatically
CHARGE PUMP
AND
LCD WAVEFORM
CIRCUITRY
LCDVC
LCDVB
LCDVA
LCDVP1
LCDVP2
100nF
470nF
470nF
470nF
dedicated for use as LCD segments. Eight more pins must be
chosen for the LCD function. Because the LCD has 4× multi-
plexing, all four common lines are used. As a result, COM2/FP28
and COM3/FP27 cannot be used as segment lines. Based on the
alternate functions of the pins used for FP16 through FP25, FP16 to
Figure 90. External Circuitry for Charge Pump Option
External Resistor Ladder
Set the EXTRES bit (Bit 6) in the LCD Configuration X SFR
(LCDCONX, Address 0x9C) to enable the external resistor ladder
option. When EXTRES = 1, the LCD waveform voltages are sup-
plied by the external resistor ladder. Because the LCD voltages
are not generated on chip, the LCD bias compensation that is
implemented to maintain contrast over temperature and supply
is not possible.
The external circuitry needed for the resistor ladder option is
shown in Figure 91. The resistors required should be in the range
of 10 k? to 100 k? and should be based on the current required
by the LCD being used.
LCDVC
FP23 are chosen for the eight remaining segment lines. These
pins are enabled for LCD functionality in the LCD segment
enable SFR (LCDSEGE, Address 0x97) and the LCD Segment
Enable 2 SFR (LCDSEGE2, Address 0xED).
To determine the contrast setting for this 5 V LCD, see Table 93
for the BIASLVL bit settings in the LCD Configuration X SFR
(LCDCONX, Address 0x9C) that correspond to a V C of 5 V in
1/3 bias mode. The maximum bias level setting for this LCD is
BIASLVL = 101110.
The LCD is set up with the following 8052 code:
; set up LCD pins to have LCD functionality
MOV LCDSEGE,#FP20EN+FP21EN+FP22EN+FP23EN
MOV LCDSEGE2,#FP16EN+FP17EN+FP18EN+FP19EN
; set up LCDCON for f LCDCLK = 2048Hz, 1/3 bias
LCD WAVEFORM
LCDVB
and 4x multiplexing
CIRCUITRY
LCDVA
MOV
LCDCON,#BIAS+LMUX1+LMUX0
LCDVP1
LCDVP2
Figure 91. External Circuitry for External Resistor Ladder Option
LCD FUNCTION IN PSM2 MODE
LCDPSM2 (Bit 4) and LCDEN (Bit 7) in the LCD configuration
SFR (LCDCON, Address 0x95) control the LCD functionality
; set up LCDCONX for charge pump and
BIASLVL[110111]
MOV
LCDCONX,#BIASLVL5+BIASLVL4+BIASLVL3+BI
ASLVL2+BIASLVL1+BIASLVL0
; set up refresh rate for 64Hz with f LCDCLK =
2048 Hz
in the PSM2 operating mode (see Table 103).
MOV
LCDCLK,#FD3+FD2+FD1+FD0
Note that the internal voltage reference must be enabled by set-
ting REF_BAT_EN (Bit 3) in the peripheral configuration SFR
(PERIPH, Address 0xF4) to allow LCD operation in PSM2
mode (see Table 20).
Table 103. Bits Controlling LCD Functionality in PSM2 Mode
LCDPSM2 LCDEN Result
0 0 The display is off in PSM2.
; set up LCD data registers with data to be
displayed using
; LCDPTR and LCDDAT registers
; turn all segments on FP27 ON
ORL LCDCONY,#01h ; start data memory
refresh
MOV LCDDAT,#F0H
0
1
1
X
The display is on in PSM2.
The display is off in PSM2.
MOV
ANL
LCDPTR, #80h OR 0DH
LCDCONY,#0FEh ; end of data memory
In addition, note that the LCD configuration and data memory
are retained when the display is turned off.
Example LCD Setup
An example of how to set up the LCD peripheral for a specific
LCD is described in this section with the following parameters:
refresh
ORL LCDCON,#LCDEN ; enable LCD
To set up the same 3.3 V LCD for use with an external resistor
ladder,
; setup LCDCONX for external resistor ladder
MOV LCDCONX,#EXTRES
Rev. D | Page 106 of 156
相关PDF资料 |
PDF描述 |
|---|---|
| VE-J1M-EX | CONVERTER MINIMOD DC/DC 10V 75W |
| VE-21M-EX | CONVERTER MOD DC/DC 10V 75W |
| VE-21R-EX | CONVERTER MOD DC/DC 7.5V 75W |
| AD9912A/PCBZ | BOARD EVALUATION FOR AD9912 |
| H1KXH-2636M | IDC CABLE - HPK26H/AE26M/X |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADE5169F62EBZ | 制造商:Analog Devices 功能描述:EVALUATION BOARD FOR ADE5169 - Boxed Product (Development Kits) 制造商:Rochester Electronics LLC 功能描述: |
| EVAL-ADE5569F62EBZ | 制造商:AD 制造商全称:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver |
| EVAL-ADE7169EBZ-2 | 功能描述:BOARD EVALUATION FOR ADE7169F16 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| EVAL-ADE7169F16EB | 制造商:AD 制造商全称:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver |
| EVAL-ADE7169F16EBZ | 制造商:Analog Devices 功能描述:Evaluation Board For ADE7169 制造商:Analog Devices 功能描述:EVAL BD FOR ADE7169 - Bulk |
发布紧急采购，3分钟左右您将得到回复。