参数资料
| 型号： | DS1874T+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 55/88页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SFP+ ANLG LDD 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 激光二极管控制器 |
| 通道数： | 1 |
| 电源电压： | 2.85 V ~ 3.9 V |
| 电流 - 电源： | 2.5mA |
| 工作温度： | -40°C ~ 95°C |
| 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 |
| 安装类型： | 表面贴装 |
| 其它名称： | 90-1874T+000 |
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SFP+ Controller with Digital LDD Interface
Table 02h Register Descriptions
Table 02h, Register 80h: MODE
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
3Fh
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RTBL246)
Volatile
80h
SEEB
RESERVED
DAC1 EN
DAC2 EN
AEN
MOD EN
APC EN
BIAS EN
BIT 7
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
BIT 0
SEEB:
0 = (Default) Enables EEPROM writes to SEE bytes.
1 = Disables EEPROM writes to SEE bytes during configuration, so that the configuration of the part
is not delayed by the EE cycle time. Once the values are known, write this bit to a 0 and write the
SEE locations again for data to be written to the EEPROM.
RESERVED
DAC1 EN:
0 = DAC1 VALUE is writable by the user and the LUT recalls are disabled. This allows users to
interactively test their modules by writing the values for DAC1. The output is updated with the new
value at the end of the write cycle. The I 2 C STOP condition is the end of the write cycle.
1 = (Default) Enables auto control of the LUT for DAC1 VALUE.
DAC2 EN:
0 = DAC2 VALUE is writable by the user and the LUT recalls are disabled. This allows users to
interactively test their modules by writing the values for DAC2. The output is updated with the new
value at the end of the write cycle. The I 2 C STOP condition is the end of the write cycle.
1 = (Default) Enables auto control of the LUT for DAC2 VALUE.
AEN:
0 = The temperature-calculated index value TINDEX is writable by users and the updates of
calculated indexes are disabled. This allows users to interactively test their modules by
controlling the indexing for the LUTs. The recalled values from the LUTs appear in the DAC
registers after the next completion of a temperature conversion.
MOD EN:
0 = Modulation is writable by the user and the LUT recalls are disabled. This allows users to
interactively test their modules by writing the DAC value for modulation. The output is updated with the
new value at the end of the write cycle. The I 2 C STOP condition is the end of the write cycle.
1 = (Default) Enables auto control of the LUT for modulation.
APC EN:
0 = APC DAC is writable by the user and the LUT recalls are disabled. This allows users to
interactively test their modules by writing the DAC value for APC reference. The output is updated with
the new value at the end of the write cycle through the 3-wire interface. The I 2 C STOP condition is the
end of the write cycle.
1 = (Default) Enables auto control of the LUT for APC reference.
BIAS EN:
0 = BIAS register is controlled by the user and the APC is in manual mode. The BIAS register value
is written with the use of the 3-wire interface. This allows the user to interactively test their modules
by writing the DAC value for bias.
1 = (Default) Enables auto control for the APC feedback.
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相关代理商/技术参数 |
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|---|---|
| DS1874T+ | 功能描述:ADC / DAC多通道 SFP+ Controller w/ Dgtl 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 |
| DS1874T+T&R | 制造商:Maxim Integrated Products 功能描述:SFP+ CONTROLLER WITH DIGITAL LDD INTERFACE - Tape and Reel 制造商:Maxim Integrated Products 功能描述:MXMDS1874T+T&R SFP+ CTRLR FOR USE W/MAX3 制造商:Maxim Integrated Products 功能描述:IC CTLR SFP+ ANLG LDD 28-TQFN |
| DS1874T+T&R | 功能描述:ADC / DAC多通道 SFP+ Controller w/ Dgtl 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 |
| DS1874T+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP+ Controller with Digital LDD Interface |
| DS1875 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer and SFP Controller |
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