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参数资料
| 型号： | ADN2870ACPZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 3.3GPBS 3.6V 24LFCSP |
| 标准包装： | 1,500 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 3.3Gbps |
| 通道数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 30mA |
| 电流 - 调制： | 90mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 24-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 24-LFCSP-VQ（4x4） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
ADN2870
ALARMS
The ADN2870 has a latched active high monitoring alarm
(FAIL). The FAIL alarm output is an open drain in conformance
to SFP MSA specification requirements.
The ADN2870 has a three-fold alarm system that recognizes:
The bias current alarm trip point is set by selecting the value of
resistor on the IBMON pin to GND. The alarm is triggered
when the voltage on the IBMON pin goes above 1.2 V.
FAIL is activated when the single-point faults in Table 5 occur.
?
?
?
Use of a bias current higher than expected, most likely as
a result of laser aging.
Out-of-bounds average voltage at the MPD input, indicat-
ing an excessive amount of laser power or a broken loop.
Undervoltage in IBIAS pin (laser diode cathode) that
increases laser power.
Table 5. ADN2870 Single-Point Alarms
Over Voltage or Short to VCC
Under Voltage or Short to GND
Alarm Type
1. Bias Current
2. MPD Current
3. Crucial Nodes
Mnemonic
IBMON
PAVSET
ERREF (the ERRREF designed tied
to VCC in resistor setting mode.)
IBIAS
Condition
Alarm if > 1.2 V
Alarm if > 1.7 V
Alarm if shorted to VCC (the alarm is
valid for voltage setting mode only)
Ignore
Condition
Ignore
Alarm, if <0.9 V
Alarm, if shorted to GND
Alarm, if <600 mV
Table 6. ADN2870 Response to Various Single-Point Faults in AC-Coupled Configuration, as Shown in Figure 32
Mnemonic
CCBIAS
PAVSET
PAVREF
Short to VCC
Fault state occurs
Fault state occurs
Voltage mode: Fault state occurs
Short to GND
Fault state occurs
Fault state occurs
Fault state occurs
Open
Does not increase laser average power
Fault state occurs
Fault state occurs
Resistor mode: Tied to VCC
RPAV
Voltage mode: Fault state occurs
Resistor mode: Tied to VCC
Fault state occurs
Voltage mode: Fault state occurs
Resistor mode: Does not increase
average power
ERCAP
PAVCAP
DATAP
DATAN
ALS
ERSET
IMMON
ERREF
Does not increase laser average power
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Output currents shut off
Does not increase laser average power
Does not affect laser power
Voltage mode: Fault state occurs
Does not increase laser average power
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Normal currents
Does not increase laser average power
Does not increase laser average power
Voltage mode: Does not increase
Does not increase laser average power
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Output currents shut off
Does not increase laser average power
Does not increase laser average power
Does not increase laser average power
average power
Resistor mode: Tied to VCC
Resistor mode: Fault state occurs
IBMON
FAIL
IMODP
IMODN
IBIAS
Fault state occurs
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Does not increase laser average power
Does not increase laser average power
Fault state occurs
Does not increase laser average power
Does not increase laser average power
Does not increase laser average power
Does not increase laser power
Fault state occurs
Rev. A | Page 17 of 20
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相关代理商/技术参数 |
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| ADN2871 | 制造商:AD 制造商全称:Analog Devices 功能描述:3.3 V, 50 Mbps to 4.25 Gbps Single-Loop Laser Diode Driver |
| ADN2871ACPZ | 功能描述:IC LASER DRIVER 4.25GBPS 24LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| ADN2871ACPZ-RL | 功能描述:IC LASER DRIVER 4.25GBPS 24LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| ADN2871ACPZ-RL7 | 功能描述:IC LASER DRIVER 4.25GBPS 24LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| ADN2872 | 制造商:AD 制造商全称:Analog Devices 功能描述:3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver |
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