參數(shù)資料
型號(hào)： FMS2704LT1C
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO24
封裝： TSSOP-24
文件頁(yè)數(shù)： 28/39頁(yè)
文件大?。?/td> 173K
代理商： FMS2704LT1C
PRODUCT SPECIFICATION
FMS2704/FMS2704L
34
REV. 1.01 12/2/99
Recommended ceramic resonator to be connected across the
OSC2-1 pins is a Murata CSTCC358-TC or equivalent. This
resonator includes capacitors that form the resonant circuit of
a Colpitts oscillator. If a resonator without internal capacitors
is used, external capacitors should be connected as shown in
Figure 22.
Figure 22. Schematic, Ceramic Resonator
Configurations
Example Applications Circuits
Several applications are depicted in the schematics below.
Figure 23 shows how the FMS2704 can be used to set the
speed of two fans while monitoring the rotation rates with the
tachometer inputs. Fan speed is set by programming the
SPEEDA and SPEEDB registers. Drive to the P-channel
MOSFETs is set to be PWM.
Figure 24 shows the FMS2704 used as a Fan Speed Control-
ler. Fan Drive increases as the temperature of the thermal
diode increases. There are two separate controllers, one for
each fan. PNP transistors comprising the diodes may be
embedded within processor silicon such as a Pentium II or III.
Figure 25 shows an FMS2704 driving two banks of three fans
while monitoring the speed of each fan.
OSC1
OSC2
OSC1
OSC2
Y1
CSTCC358-TC
1
3
2
HI
LO
GND
Y?
RESON ATOR
C?
30PF
C?
相關(guān)PDF資料
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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
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