参数资料
型号: ADM1033ARQZ
厂商: Analog Devices, Inc.
英文描述: Thermal Monitor and Fan Speed (RPM) Controller
中文描述: 热监测和风扇转速(RPM)控制器
文件页数: 5/40页
文件大小: 1164K
代理商: ADM1033ARQZ
ADM1033
Parameter
TACHOMETER ACCURACY
Fan Speed Measurement Accuracy
AGTL + INPUT (THERM)
Input High Level
Input Low Level
SERIAL BUS TIMING
3
Clock Frequency, f
SCLK
Glitch Immunity, t
SW
Bus Free Time, t
BUF
Start Setup Time, t
SU:STA
Start Hold Time, t
HD:STA
Stop Condition Setup Time, t
SU:STO
SCL Low Time, t
LOW
SCL High Time, t
HIGH
SCL, SDA Rise Time, t
r
SCL, SDA Fall Time, t
f
Data Setup Time, t
SU:DAT
Detect Clock Low Timeout, t
TIMEOUT
Rev. 0 | Page 5 of 40
Min
1.3
0.6
0.6
0.6
1.3
0.6
100
25
Typ
0.75 × REF
50
Max
±4
0.4
400
1000
300
35
Units
%
V
V
kHz
ns
μs
μs
μs
μs
μs
μs
ns
ns
ns
ms
Test Conditions/Comments
See Figure 2
See Note 4
1
Typicals are at T
A
= 25°C and represent most likely parametric norm. Standby current typ is measured with V
CC
= 3.3 V. Timing specifications are tested at logic levels of
V
IL
= 0.8 V for a falling edge and V
IH
= 2.1 V for a rising edge.
2
Operation at 5.5 V is guaranteed by design, not production tested.
3
Guaranteed by design, not production tested.
4
SMBus timeout disabled by default. See the SMBus Timeout section for more information.
P
S
t
LOW
t
R
t
F
t
HD:STA
t
HD:DAT
t
SU:DAT
t
SU:STA
t
HD:STA
t
SU:STO
t
HIGH
SCL
P
S
SDA
t
BUF
0
Figure 2. Serial Bus Timing Diagram
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