- 您现在的位置：买卖IC网 > PDF目录68995 > FMS2704LT1C (FAIRCHILD SEMICONDUCTOR CORP) SPECIALTY ANALOG CIRCUIT, PDSO24 PDF资料下载
参数资料
| 型号： | FMS2704LT1C |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | TSSOP-24 |
| 文件页数： | 11/39页 |
| 文件大小： | 173K |
| 代理商： | FMS2704LT1C |
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页当前第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
FMS2704/FMS2704L
PRODUCT SPECIFICATION
REV. 1.01 12/2/99
19
Figure 2. Temperature Processor Block Diagram
Mux
DSP
T7-0
A/D
Converter
Current
Generators
FAULT
Remote
Thermal
Diodes
Local
Thermal
Diode
A differential multiplexer selects the thermal diode input
voltage to be applied to the A/D converter and the bandgap
used for the A/D calibration cycle. Voltage of the diode is
sensed at two currents:10 and 100A. During the diode sam-
pling interval, the A/D converter digitizes low and high cur-
rent samples. DSP averages and subtracts the samples to
output an 8-bit temperature that is updated a rate greater than
1Hz. Remote and Local diode temperatures are outputted
alternately on the T7-0 bus which is connected to the
Temperature Registers.
Remote Diode fault sensing is included within the DSP block.
If either remote diode voltage indicates either a short or an
open circuit, the appropriate FAULT_D1 or FAULT_D2 bit is
set in the Interrupt Status Register.
Temperature data format is 8-bit, two’s complement with the
LSB equivalent to 1.0°C. Range and conversion between °C
and equivalent binary and hexadecimal data is exemplied in
Table 1.
Table 1. Temperature/Data Conversion/Format
A block diagram of the processing shared by the thermometer
channels is shown in Figure 3.
Temperature
Digital Output
Binary
Hex
+125°C
0111 1101
0x7D
+25°C
0001 1001
0x19
+1.0°C
0000 0001
0x01
0°C
0000 0000
0x00
-1.0°C
1111 1111
0xFF
-25°C
1110 0111
0xE7
-55°C
1100 1001
0xC9
Figure 3. Temperature Processor Architecture
A/D
TK[9:0]
TC[8:0]
ADC[13:0]
Sensitivity
Register
(NG)
Offset
Register
(NOS = 272.2)
VHI[13:0]
VLO[13:0]
VPN
Ambient: No A/D averaging
Remote: Average 16 HI/LO sample pairs
相关PDF资料 |
PDF描述 |
|---|---|
| FMS2704T1C | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| FMS6501MSA28X_NL | 12-CHANNEL, AUDIO/VIDEO SWITCH, PDSO28 |
| FN3000-810-830 | PLL FREQUENCY SYNTHESIZER, DMA37 |
| FNA41060 | AC MOTOR CONTROLLER, DMA26 |
| FNB41560 | AC MOTOR CONTROLLER, DMA26 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FMS2704MTC | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FMS2A | 制造商:ROHM Semiconductor 功能描述:100 mA, 40 V, 2 CHANNEL, PNP, Si, SMALL SIGNAL TRANSISTOR |
| FMS2T148 | 制造商:ROHM Semiconductor 功能描述: |
| FMS3 | 制造商:MITA 功能描述:12M COIL SA 38X16MM TRUNK |
| FMS300 | 制造商:Black Box Corporation 功能描述:CAT6 SHIELDED JACK 90 DEGREE |
发布紧急采购，3分钟左右您将得到回复。