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参数资料
| 型号： | DS1874T+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 68/88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： | 2,500 |
| 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： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
| 其它名称： | 90-1874T+TRL |
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SFP+ Controller with Digital LDD Interface
Table 02h, Register BAh: RESERVED
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
This register is reserved.
Table 02h, Register BBh: ISTEP
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
BBh
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
BIT 7
BIT 0
The initial step value used at power-on or after a TXD pulse to control the BIAS register. At startup, this value plus
2 0 = 1 is continuously added to the BIAS register value until the APC feedback (MON2) is greater than its threshold.
At that time, a binary search is used to complete the startup of the APC closed loop. If the resulting math operation is
greater than IBIASMAX (Table 02h, Register EEh), the result is not loaded into the BIAS register, but the binary
search is begun to complete the initial search for APC. During startup, the BIAS register steps causing a higher bias
value than IBIASMAX do not create the BIAS MAX alarm. The BIAS MAX alarm detection is enabled at the end of the
binary search.
Table 02h, Register BCh: HTXP
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
BCh
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
BIT 7
BIT 0
Fast-comparison DAC threshold adjust for high TXP. This value is added to the APC DAC value recalled from
Table 06h. If the sum is greater than 0xFF, 0xFF is used. Comparisons greater than V HTXP , compared against
V MON2 , create a TXP HI alarm. The same ranging applied to the APC DAC should be used here.
V HTXP =
Full Scale
255
( HTXP + APC DAC )
68
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1875 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer and SFP Controller |
| DS1875RT+ | 制造商:Maxim Integrated Products 功能描述:PON TRIPLEXER AND SFP CONTROLLER - Rail/Tube |
| DS1875RT+T&R | 制造商:Maxim Integrated Products 功能描述:PON TRIPLEXER AND SFP CONTROLLER - Tape and Reel |
| DS1875T+ | 功能描述:ADC / DAC多通道 PON Triplexer & SFP Controller 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 |
| DS1875T+T&R | 制造商:Maxim Integrated Products 功能描述:PON TRIPLEXER 38TQFN EP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC SFP CTRLR/TRIPLEXER 38-TQFN 制造商:Maxim Integrated Products 功能描述:ADC / DAC Multichannel PON Triplexer & SFP Controller |
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