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| 型號(hào)： | ADT7476ARQZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 2.50Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | ROHS COMPLIANT, MO-137AE, QSOP-24 |
| 文件頁(yè)數(shù)： | 60/72頁(yè) |
| 文件大?。?/td> | 5219K |
| 代理商： | ADT7476ARQZ-REEL7 |
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ADT7476
Rev. B | Page 63 of 72
Table 38. Register 0x62—Enhanced Acoustics Register 1 (Power-On Default = 0x00)
Bit
Name
Description
[2:0]
R/W
Assuming that PWMx is associated with the Remote 1 temperature channel, these bits define the maximum
rate of change of the PWMx output for Remote 1 temperature-related changes. Instead of the fan speed
jumping instantaneously to its newly determined speed, it ramps gradually at the rate determined by these
bits. This feature ultimately enhances the acoustics of the fan.
When Bit 7 of Configuration Register 6 (0x10) is 0
Time Slot Increase
Time for 0% to 100%
000 = 1
37.5 sec
001 = 2
18.8 sec
010 = 3
12.5 sec
011 = 4
7.5 sec
100 = 8
4.7 sec
101 = 12
3.1 sec
110 = 24
1.6 sec
111 = 48
0.8 sec
When Bit 7 of Configuration Register 6 (0x10) is 1
Time Slot Increase
Time for 0% to 100%
000 = 1
52.2 sec
001 = 2
26.1 sec
010 = 3
17.4 sec
011 = 4
10.4 sec
100 = 8
6.5 sec
101 = 12
4.4 sec
110 = 24
2.2 sec
111 = 48
1.1 sec
[3]
EN1
R/W
When this bit is 1, smoothing is enabled on Remote 1 temperature channel.
[4]
SYNC
R/W
SYNC = 1 synchronizes fan speed measurements on TACH2, TACH3, and TACH4 to PWM3. This allows up to
three fans to be driven from PWM3 output and their speeds to be measured.
SYNC = 0 synchronizes only TACH3 and TACH4 to PWM3 output.
[5]
MIN1
R/W
When the ADT7476 is in automatic fan control mode, this bit defines whether PWM1 is off (0% duty cycle)
or at PWM1 minimum duty cycle when the controlling temperature is below its TMIN – hysteresis value.
0 = 0% duty cycle below TMIN – hysteresis.
1 = PWM1 minimum duty cycle below TMIN – hysteresis.
[6]
MIN2
R/W
When the ADT7476 is in automatic fan speed control mode, this bit defines whether PWM2 is off (0% duty
cycle) or at PWM2 minimum duty cycle when the controlling temperature is below its TMIN – hysteresis
value.
0 = 0% duty cycle below TMIN – hysteresis.
1 = PWM2 minimum duty cycle below TMIN – hysteresis.
[7]
MIN3
R/W
When the ADT7476 is in automatic fan speed control mode, this bit defines whether PWM3 is off (0% duty
cycle) or at PWM3 minimum duty cycle when the controlling temperature is below its TMIN – hysteresis
value.
0 = 0% duty cycle below TMIN – hysteresis.
1 = PWM3 minimum duty cycle below TMIN – hysteresis.
1 This register becomes read-only when the Configuration Register 1 LOCK bit is set to 1. Any subsequent attempts to write to this register fail.
2 Setting the relevant bit of Configuration Register 6 (0x10, Bits [2:0]) further decreases these ramp rates by a factor of 4.
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| ADT7476EBZEVB | 功能描述:BOARD EVALUATION FOR ADT7476 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:dBCool® 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
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