参数资料
型号: MAX6618AUB+
厂商: Maxim Integrated Products
文件页数: 17/17页
文件大小: 0K
描述: IC PECI TO I2C TRANSLATOR 10UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
逻辑功能: 变换器
位数: 1
输入类型: PECL
输出类型: I²C?
通道数: 1
输出/通道数目: 1
差分 - 输入:输出: 无/无
电源电压: 3 V ~ 3.6 V
工作温度: -20°C ~ 120°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-µMAX
包装: 管件
MAX6618
PECI-to-I2C Translator
9
Maxim Integrated
Alternate Temperature Value Representation
This optional feature can be enabled using bit 6 of
CONFIG0. When the alternate data format is enabled, the
temperature value is shifted right as shown in Table 9. The
most significant bits are set to all 0s or all 1s depending on
the sign bit 15, also shown as S in Figure 3. Table 10
shows some example values. This translation is not per-
formed for error codes (16-bit values from 8000h
through 81FFh).
Excluding error codes, the software only has to exam-
ine the RESLO data byte, as it represents an integer
value in the range from -128°C to +127°C in 1°C steps.
The RESHI byte is all 0s or all 1s for valid return codes,
and either 80h or 81h for all error codes.
Temperature Averaging
The MAX6618 can average several temperature read-
ings and return a value as calculated by:
where TOLD is the previously stored temperature, TPECI
is the new value read from PECI, and TNEW is the newly
stored temperature ready to be returned through I2C.
This calculation can cause significant bits to be lost.
Enable temperature averaging by writing the desired
averaging amount to the CONFIG3 register. Writing 00h
to the CONFIG3 register disables temperature averaging.
Tx T
NEW
CONFIG
PECI
CONFIG
=+
1
2
1
2
33
xTOLD
S
X
12
11
10
9
8
7
6
X
S
12
11
10
9
8
7
6
INTEGER VALUE (~ 1
°C)
(SIGN BITS)
RESHI
RESLO
FRACTIONAL VALUE
Figure 3. Alternate Temperature Representation
DESCRIPTION
RESHI
RESLO
16-bit value
15:14:13:12:11:10:9:8
7:6:5:4:3:2:1:0
Alternate
representation
15:15:15:15:15:15:15:15
15:12:11:10:9:8:7:6
Table 9. Alternate Temperature
Representation
BINARY
TEMP (°C)
RELATIVE TEMP (°C)
HEX
RESHI
RESLO
+94
-1
FFFFh
1111 1111
+85
-10
FFF6h
1111 1111
1111 0110
+70
-25
FFE7h
1111 1111
1110 0111
+45
-50
FFCEh
1111 1111
1100 1110
+20
-75
FFB5h
1111 1111
1011 0101
Table 10. Example of Alternate Representation with No Offset (Activation Point = +95°C)
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MAX6618AUB+ 功能描述:接口 - 专用 PECI-to-I2C Translator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59
MAX6618AUB+G126 功能描述:接口 - 专用 PECI-to-I2C Translator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59
MAX6618AUB+T 功能描述:接口 - 专用 PECI-to-I2C Translator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59
MAX6618AUB+TG11 功能描述:接口 - 专用 PECI-to-I2C Translator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59
MAX6618AUB+TG126 功能描述:接口 - 专用 PECI-to-I2C Translator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59