参数资料
型号: TC7107CKW713
元件分类: ADC
英文描述: 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
封装: 10 X 10 MM, 2 MM HEIGHT, PLASTIC, MQFP-44
文件页数: 2/34页
文件大小: 482K
代理商: TC7107CKW713
TC7106/A/TC7107/A
DS21455D-page 10
2008 Microchip Technology Inc.
5.0
DIGITAL SECTION (TC7106A)
The TC7106A (Figure 5-2) contains all the segment
drivers necessary to directly drive a 3-1/2 digit liquid
crystal display (LCD). An LCD backplane driver is
included. The backplane frequency is the external
clock
frequency
divided
by
800.
For
three
conversions per second, the backplane frequency is
60Hz with a 5V nominal amplitude. When a segment
driver is in phase with the backplane signal, the
segment is “OFF.” An out of phase segment drive
signal causes the segment to be “ON” or visible. This
AC drive configuration results in negligible DC voltage
across each LCD segment. This insures long LCD
display life. The polarity segment driver is “ON” for
negative analog inputs. If VIN+ and VIN- are reversed,
this indicator will reverse.
When the TEST pin on the TC7106A is pulled to V+, all
segments are turned “ON.” The display reads -1888.
During this mode, the LCD segments have a constant
DC
voltage
impressed.
DO
NOT
LEAVE
THE
DISPLAY
IN
THIS
MODE
FOR
MORE
THAN
SEVERAL MINUTES! LCD displays may be destroyed
if operated with DC levels for extended periods.
The display font and the segment drive assignment are
shown in Figure 5-1.
FIGURE 5-1:
Display Font and Segment
Assignment
In the TC7106A, an internal digital ground is generated
from a 6-volt zener diode and a large P channel source
follower. This supply is designed to absorb the large
capacitive currents when the backplane voltage is
switched.
Display Font
1000s'
100s'
10s'
1s'
相关PDF资料
PDF描述
TC7106ACKW713 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
TC7107ACKW713 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
TC7106CLW713 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
TC7107ARIPL 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40
TC7107ARCPL 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PDIP40
相关代理商/技术参数
参数描述
TC7107CLW 功能描述:LED显示驱动器 w/LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
TC7107CLW713 功能描述:LED显示驱动器 w/LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
TC7107CPL 功能描述:LED显示驱动器 w/LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
TC7107CPL 制造商:Microchip Technology Inc 功能描述:Leaded Process Compatible:No
TC7107CPL 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC CMOS 7107 DIP40 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC, CMOS, 7107, DIP40 制造商:Microchip Technology Inc 功能描述:3.5 DIGIT ADC, CMOS, 7107, DIP40; Resolution (Bits):3.5bit; Supply Voltage Type:Single; Supply Voltage Max:5V; Supply Current:800A; Digital IC Case Style:DIP; No. of Pins:40; Input Channel Type:Differential; Data Interface:Parallel;;RoHS Compliant: Yes