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参数资料
| 型号： | DS1876T+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 40/69页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SFP DUAL LDD 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | SFP 激光控制器 |
| 输入类型： | 逻辑 |
| 输出类型： | 逻辑 |
| 接口： | I²C |
| 电流 - 电源： | 10mA |
| 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： | 管件 |
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45
Maxim Integrated
SFP Controller with Dual LDD Interface
DS1876
Table 02h, Register 80h: MODE (continued)
Table 02h, Register 81h: TEMPERATURE INDEX (TINDEX)
BIT 2
MOD1EN:
0 = MOD1 DAC is writable by the user and the LUT recalls are disabled. This allows the user to
interactively test their modules by writing the values for MOD1. The output is updated with the new
value at the end of the write cycle. The I2C STOP condition is the end of the write cycle.
1 = (default) Enables automatic control of the LUT for MOD1 DAC.
BIT 1
QT1EN:
0 = QTs (HBIAS, TXP HI, TXP LO) for transmitter 1 are writable by the user and the LUT recalls are
disabled. This allows the user to interactively test their modules by writing to the QT thresholds.
The thresholds are updated with the new values at the end of the write cycle. The I2C STOP
condition is the end of the write cycle.
1 = (default) Enables automatic control of the LUT QTs for transmitter 1.
BIT 0
APC1EN:
0 = APC1 DAC is writable by the user and the LUT recalls are disabled. This allows the user to
interactively test their modules by writing the values for APC1. The output is updated with the new
value at the end of the write cycle. The I2C STOP condition is the end of the write cycle.
1 = (default) Enables automatic control of the LUT for APC1 DAC.
FACTORY DEFAULT
00h
READ ACCESS
PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)
WRITE ACCESS
(PW2 and AEN = 0) or (PW1 and RWTBL2 and AEN = 0)
A2h AND B2h MEMORY
Common A2h and B2h memory location
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 and 06h. Temperature measurements below -40NC or above +102NC are clamped to 80h and C7h,
respectively. The calculation of TINDEX is as follows:
Temp_Value 40 C
TINDEX
80h
2 C
+°
=
+
°
For the temperature-indexed LUTs (2NC), 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
TINDEX6
TINDEX5
TINDEX4
TINDEX3
TINDEX2
TINDEX1
TINDEX0
For the 8-position LUT tables, the following table shows the lookup function:
TINDEX
1000_0xxx
1001_0xxx
1001_1xxx
1010_0xxx
1010_1xxx
1011_0xxx
1011_1xxx
11xx_xxxx
BYTE
F8
F9
FA
FB
FC
FD
FE
FF
TEMP (NC)
< -8
-8 to +8
+8 to +24
+24 to +40
+40 to +56
+56 to +72
+72 to +88
R
88
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1876T+ | 功能描述:ADC / DAC多通道 SFP+ Controller w/ Dual LDD Interface 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 |
| DS1876T+T&R | 制造商:Maxim Integrated Products 功能描述:SFP CTRLR W/DUAL LDD INTERFACE TQFN - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CTRLR SFP DUAL LDD 28TQFN |
| DS1876T+T&R | 功能描述:ADC / DAC多通道 SFP+ Controller w/ Dual LDD Interface 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 |
| DS1876T+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP Controller with Dual LDD Interface |
| DS1877 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP Controller for Dual Rx Interface |
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