参数资料
型号: DS1878T+
厂商: Maxim Integrated Products
文件页数: 60/101页
文件大小: 0K
描述: IC CTLR SFP W/DGTL LDD RX 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: SFP+ 控制器
输入类型: 模拟,数字
输出类型: 数字
接口: I²C,LDD,串行
电流 - 电源: 2.5mA
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 托盘
DS1878
SFP+ Controller with Digital LDD Interface
______________________________________________________________________________________
61
Table 02h, Register 81h: TEMPERATURE INDEX (TINDEX)
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS
(PW2 and AEN = 0) or (PW1 and RWTBL246 and AEN = 0)
MEMORY TYPE
Volatile
81h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
Holds the calculated index based on the temperature measurement. This index is used for the address during
lookup of Tables 04h, 06h–08h. Temperature measurements below -40°C or above +102°C are clamped to 80h and
C7h, respectively. The calculation of TINDEX is as follows:
TINDEX
=
Temp _ Value
+ 40°C
2
°C
+ 80h
For the temperature-indexed LUTs, the index used during the lookup function for each table is as follows:
Table 04h (MOD)
1
TINDEX6
TINDEX5
TINDEX4
TINDEX3
TINDEX2
TINDEX1
TINDEX0
Table 06h (APC)
1
0
TINDEX6
TINDEX5
TINDEX4
TINDEX3
TINDEX2
TINDEX1
Table 07h (DAC1)
1
0
TINDEX6
TINDEX5
TINDEX4
TINDEX3
TINDEX2
TINDEX1
Table 08h (DAC2)
1
0
TINDEX6
TINDEX5
TINDEX4
TINDEX3
TINDEX2
TINDEX1
FACTORY DEFAULT
0000h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS
(PW2 and MOD EN = 0) or (PW1 and RWTBL246 and MOD EN = 0)
MEMORY TYPE
Volatile
82h
0
28
83h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The digital value used for MODULATION and recalled from Table 04h at the adjusted memory address found in
TINDEX. This register is updated at the end of the temperature conversion.
Table 02h, Register 82h–83h: MODULATION REGISTER
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DS1878T TR 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP+ Controller with Digital LDD Interface
DS1878T+ 功能描述:ADC / DAC多通道 SFP+ Controller w/ MAX3946&3945 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
DS1878T+T 功能描述:ADC / DAC多通道 SFP+ Controller w/ MAX3946&3945 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
DS1878T+T&R 制造商:Maxim Integrated Products 功能描述:IC CTLR SFP W/DGTL LDD RX 28TQFN
DS1878T+T&R 功能描述:ADC / DAC多通道 SFP+ Controller w/ MAX3946&3945 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40