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DS1875RT+

更新时间： 2024-01-02 17:13:00
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
92页 1380K
描述
Analog Circuit, 1 Func, 5 X 7 MM, ROHS COMPLIANT, TQFN-38

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DS1875RT+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN,针数：38
Reach Compliance Code：compliantECCN代码：5A991
HTS代码：8542.31.00.01Factory Lead Time：9 weeks
风险等级：0.71模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-XQCC-N38长度：7 mm
湿度敏感等级：1功能数量：1
端子数量：38最高工作温度：95 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：0.8 mm
最大供电电压 (Vsup)：3.9 V最小供电电压 (Vsup)：2.85 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：5 mm
Base Number Matches：1

DS1875RT+ 数据手册

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Rev 1; 10/08  
PON Triplexer and SFP Controller  
DS1875  
General Description  
Features  
The DS1875 controls and monitors all functions for burst-  
mode transmitters, APD receivers, and video receivers.  
It also includes a power-supply controller for APD bias  
generation, and provides all SFF-8472 diagnostic and  
monitoring functionality. The combined solution of the  
DS1875 and the MAX3643 laser driver provides APC  
loop, modulation current control, and eye safety func-  
♦ Meets All PON Burst-Timing Requirements for  
Burst-Mode Operation  
♦ Laser Bias Controlled by APC Loop and  
Temperature Lookup Table (LUT)  
♦ Laser Modulation Controlled by Temperature LUT  
♦ Six Total DACs: Four External, Two Internal  
tionality. Ten ADC channels monitor V , temperature  
CC  
♦ Two 8-Bit DACs, One of Which is Optionally  
(both internal signals), and eight external monitor inputs  
(MON1–MON8) that can be used to meet transmitter,  
digital receiver, video receiver, and APD receiver-signal  
monitoring requirements. Four total DAC outputs are  
available. A PWM controller with feedback and compen-  
sation pins can be used to generate the bias for an APD  
or as a step-down converter. Five I/O pins allow addi-  
tional monitoring and configuration.  
Controlled by MON4 Voltage  
♦ Internal 8-Bit DAC Controlled by a Temperature-  
Indexed LUT  
♦ PWM Controller  
♦ Boost or Buck Mode  
♦ Boost Mode: Uses Optional External  
Components, Up to 90V Bias Generation  
♦ 131kHz, 262kHz, 525kHz, or 1050kHz Selectable-  
Applications  
Switching Frequency  
BPON, GPON, or EPON Optical Triplexers  
SFF, SFP, and SFP+ Transceiver Modules  
APD Controller  
♦ APD Overcurrent Protection Using Optional Fast  
Shutdown  
♦ 10 Analog Monitor Channels: Temperature, V  
,
CC  
Eight Monitors  
Ordering Information  
♦ Internal, Factory-Calibrated Temperature Sensor  
♦ RSSI with 29dB Electrical Dynamic  
PART  
TEMP RANGE  
-40°C to +95°C  
-40°C to +95°C  
PIN-PACKAGE  
38 TQFN-EP*  
38 TQFN-EP*  
DS1875T+  
♦ Five I/O Pins for Additional Control and  
Monitoring Functions, Four of Which are Either  
Digital I/O or Analog Monitors  
DS1875T+T&R  
+Denotes a lead-free/RoHS-compliant package.  
T&R = Tape and reel.  
♦ Comprehensive Fault-Measurement System with  
*EP = Exposed pad.  
Maskable Laser Shutdown Capability  
♦ Two-Level Password Access to Protect  
Pin Configuration  
Calibration Data  
TOP VIEW  
♦ 120 Bytes of Password-1 Protected Memory  
♦ 128 Bytes of Password-2 Protected Memory in  
31 30 29 28 27 26 25 24 23 22 21 20  
Main Device Address  
GND 32  
19 MON4  
18 MON2  
17 MON1  
16 MON8/D3  
♦ 256 Additional Bytes Located at A0h Slave  
GND 33  
SW 34  
Address  
2
♦ I C-Compatible Interface for Calibration and  
V
35  
36  
CC  
DS1875  
Monitoring  
N.C.  
MON7/D2  
15  
14 MON6/D1  
13  
♦ 2.85V to 3.9V Operating Voltage Range  
♦ -40°C to +95°C Operating Temperature Range  
♦ 38-Pin TQFN (5mm x 7mm) Package  
N.C. 37  
38  
N.C.  
MON5/D0  
*EP  
+
1
2
3
4
5
6
7
8
9
10 11 12  
TQFN  
(5mm × 7mm × 0.8mm)  
*EXPOSED PAD.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
1234567...92

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