- 您现在的位置：买卖IC网 > PDF目录16860 > EVB90308 (Melexis Technologies NV)DEMO KIT MLX90308 SENS INTERFACE PDF资料下载
参数资料
| 型号： | EVB90308 |
| 厂商： | Melexis Technologies NV |
| 文件页数： | 3/28页 |
| 文件大小： | 0K |
| 描述： | DEMO KIT MLX90308 SENS INTERFACE |
| 标准包装： | 1 |
| 主要目的： | 接口，传感器至模数转换器接口，可编程 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | MLX90308 |
| 主要属性： | 用于桥型传感器的 MCU 控制信号调节 |
| 次要属性： | GUI 输出类型：绝对电压，比率制电压，电流输出模式 |
| 已供物品： | 板，文档，样品，软件 |
| 产品目录页面： | 1460 (CN2011-ZH PDF) |
| 相关产品： | MLX90308LDF-DAA-000-TU-ND - IC SENSOR PROG INTERFACE 16-SOIC |
| 其它名称： | DK90308 DK90308-ND |
第1页第2页当前第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
MLX90308
Programmable Sensor Interface
3901090308
Rev 007
Page 11
May/12
Different Modes
Analog Mode
The parameters OF and GN represent, respectively,
offset correction and span control, while OFTCi and
GNTCi
represent
their
temperature
coefficients
(thermal zero shift and thermal span shift). After reset,
the firmware continuously calculates the offset and
gain DAC settings as follows: The EEPROM holds
parameters GN, OF, OFTCi and GNTCi, where “i” is
the gap number and can be 1 < i < 4. The transfer
OFFSET
DAC_OFFSET (new value) ~ OF[9:0]+[OFTCi* dT]
OF[9:0] = Fixed Gain, bytes 4 and 17 in EEPROM.
OFTCi = Offset for a given temperature
segment I. OFTCiL and OFTCiH in
EEPROM table.
dT = Temp. change within the appropriate gap.
Calculation of the offset for a given temperature seg-
ment is performed the same way as for the gain.
function is described below.
Vout
=
FG
*
DAC_GAIN
*
CSGN[2:0]
*
{Vin+DAC_OFFSET+CSOF}
Iout = FG * DAC_GAIN * CSGN[1:0] *
{Vin+DAC_OFFSET+CSOF} * 8.85mA/V
FG = Hardware Gain (~20V/V). Part of the hardware
design, and not changeable.
CSGN = Course Gain, part of byte 2 in EEPROM.
CSOF = Coarse Offset, part of byte 2 in EEPROM.
GAIN
DAC_GAIN (new value) ~ GN[9:0] + [GNTCi * dT]
GN[9:0] = Fixed Gain, bytes 3 and 17 in EEPROM.
GNTCi = Gain TC for a given temperature
segment I. GNTCiL and GNTCiH in
EEPROM table.
dT = Temp. change within the appropriate gap.
How to calculate gain in the first temp. gap?:
DAC_GAIN = GN[9:0] - GNTC1 * (T1 – Temp_f1)
How to calculate gain in the other temp. gaps?:
2nd gap: DAC_GAIN = GN[9:0] + GNTC2 *
(Temp_f2 – T1)
3th gap: DAC_GAIN = DAC_GAIN2 + GNTC3 *
(Temp_f3 – T2)
4th gap: DAC_GAIN = DAC_GAIN3 + GNTC4 *
(Temp_f4 – T3)
Where:
Temp_f = Filtered temp. (previously described).
If GNTC1 > 2047 => DAC_GAIN
If GNTC2,3,4 > 2047 => DAC_GAIN
[V/V]
Digital Mode
The MLX90308 firmware provides the capability of
digitally processing the sensor signal in addition to the
analog processing. This capability allows for signal
correction.
Signal Correction
While in digital mode the firmware can perform signal
correction. This is an adjustment to the output level
based
on
the
input
signal
level.
Adjustment
coefficients can be set for five different signal ranges.
The output is obtained by the following formula:
1st gap: Output = (Signal ) * PC1 + Poff
Where:
Signal = input signal measurement;
Poff = Pressure ordinate = P1
PC1 = programmed coefficient first gap.
Following gaps:
Gap i: Output = (Signal – Pi) * PCi + Poff_i
Where
Signal = input signal measurement;
Poff_i = Pressure ordinate (i = 2,3,4,5)
Pi = Pressure signal point (i = 2,3,4,5)
PCi = programmed coefficient first gap (i = 2,3,4,5).
The PCi coefficients are coded on 12 bits: one bit for
the sign, one for the unity, and the rest for the
decimals. The Pi are coded on 10 bits (0-3FFh) in
high-low order.
PNB_TNB: contains the number of signal points,
coded on the four MSB’s. The four LSB’s are reserved
for the number of temperature points. See Table 4 and
Table 5.
相关PDF资料 |
PDF描述 |
|---|---|
| MLG0603S4N7S | INDUCTOR MULTILAYER 4.7NH 0201 |
| KSZ8041TL-EVAL | BOARD EVALUATION KSZ8041TL |
| EEU-FR1J180 | CAP ALUM 18UF 63V 20% RADIAL |
| MLG0603S3N6S | INDUCTOR MULTILAYER 3.6NH 0201 |
| KSZ8051MLL-EVAL | BOARD EVALUATION FOR KSZ8051MLL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVB90314 | 功能描述:DEMO KIT MLX90314 SENS INTERFACE RoHS:否 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:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVB90316-DC | 功能描述:BOARD EVAL FOR MLX90316-DC RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:Triaxis™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVB90316-GO | 功能描述:BOARD EVAL FOR MLX90316-GO RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:Triaxis™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| EVB90320 | 功能描述:KIT EVAL BOARD CD W/SOFTWARE RoHS:否 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:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVB90333-DC | 制造商:Melexis Semiconductors 功能描述:BOARD EVALUATION FOR MLX90333XDC 制造商:Melexis Semiconductors 功能描述:Evaluation Board for MLX90333 Triaxis Position Sensor |
发布紧急采购，3分钟左右您将得到回复。