参数资料
型号: DS1877T+T&R
厂商: Maxim Integrated Products
文件页数: 59/65页
文件大小: 0K
描述: IC CTLR/MON SFP 1-2CH 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: SFP+ 控制器
输入类型: 逻辑
输出类型: 逻辑
接口: I²C
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: 带卷 (TR)
其它名称: 90-1877T+TRL
62
Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Table 04h Register Descriptions
Table 04h, Register 80h
–C7h: DAC LUT
Table 02h, Register C8h
–F7h: EMPTY
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL46)
WRITE ACCESS
PW2 or (PW1 and RWTBL46)
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Nonvolatile (EE)
80h–C7h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
Digital value for the DAC1 VALUE (A2h address) and DAC2 VALUE (B2h address) outputs. The DAC LUT is a
set of registers assigned to hold the temperature profile for the DAC1 and DAC2 values. The temperature mea-
surement is used to index the LUT (TINDEX, Table 02h, Register 81h) in 2NC increments from -40NC to +102NC,
starting at 80h. Register 80h defines the -40NC to -38NC DAC output, Register 81h defines -38NC to -36NC DAC
output, and so on. Values recalled from this EEPROM memory table are written into the DAC1 and DAC2 value
(Table 02h, Registers C8h–C9h, CCh–CDh) locations that hold the values until the next temperature conversion.
The device can be placed into a manual mode (DAC1EN and DAC2EN bits, Table 02h, Register 80h), where
DAC1 and DAC2 values are directly controlled for calibration. If the temperature compensation functionality is
not required, program the entire table to the desired modulation setting.
FACTORY DEFAULT
00h
READ ACCESS
N/A
WRITE ACCESS
N/A
A2h AND B2h MEMORY
N/A
MEMORY TYPE
None
These registers do not exist.
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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 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