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参数资料
| 型号： | ADN2530YCPZ-500R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/20页 |
| 文件大小： | 0K |
| 描述： | IC LASER DRVR 11.3GPBS 16LFCSP |
| 标准包装： | 1 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 11.3Gbps |
| 通道数： | 1 |
| 电源电压： | 3.07 V ~ 3.53 V |
| 电流 - 电源： | 27mA |
| 电流 - 调制： | 23mA |
| 电流 - 偏置： | 25mA |
| 工作温度： | -40°C ~ 100°C |
| 封装/外壳： | 16-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 16-LFCSP-VQ |
| 包装： | 标准包装 |
| 安装类型： | 表面贴装 |
| 其它名称： | ADN2530YCPZ-500R7DKR |
P = VCC × ? MSET + I SUPPLY ? + V IBIAS × ( IBIAS × 1 . 2 )
P = VCC × ? MSET + I SUPPLY ? + V IBIAS × ? BSET × 1 . 2 ?
DataSheet
LOAD MISTERMINATION
Due to its excellent S22 performance, the ADN2530 can drive
differential loads that range from 35 ? to 140 ?. In practice,
many TOSAs have differential resistance not equal to 100 ?. In
this case, with 100 ? differential transmission lines connecting
the ADN2530 to the load, the load end of the transmission lines
are misterminated. This mistermination leads to signal reflections
back to the driver. The excellent back-termination in the
ADN2530 absorbs these reflections, preventing their reflection
back to the load. This enables excellent optical eye quality to
be achieved even when the load end of the transmission lines is
significantly misterminated. The connection between the load
and the ADN2530 must be made with 100 ? differential (50 ?
single-ended) transmission lines so that the driver end of the
transmission lines is properly terminated.
CROSSPOINT ADJUST
The crossing level in the output electrical eye diagram can be
adjusted between 35% and 65% using the crosspoint adjust (CPA)
control input. This can be used to compensate for asymmetry in
the VCSEL response and optimizes the optical eye mask margin.
The CPA input is a voltage control input, and a plot of eye cross-
in the Typical Performance Characteristics section. The equivalent
circuit for the CPA pin is shown in Figure 36. To disable the
ADN2530
POWER CONSUMPTION
The power dissipated by the ADN2530 is given by
? V ?
? 50 ?
where:
VCC is the power supply voltage.
V MSET is the voltage applied to the MSET pin.
I SUPPLY is the sum of the current that flows into the VCC,
IMODP, and IMODN pins of the ADN2530 when IBIAS =
V IBIAS is the average voltage on the IBIAS pin.
Considering VBSET/IBIAS = 50 as the conversion factor from
V BSET to IBIAS, the dissipated power becomes
? V ? ? V ?
? 50 ? ? 50 ?
To ensure long-term reliable operation, the junction tempera-
ture of the ADN2530 must not exceed 125°C, as specified in
crosspoint adjust function and set the eye crossing to 50%, the
CPA pin should be tied to VCC.
THERMAL COMPOUND
MODULE CASE
T TOP
100 ?
DIE
T J
THERMO-COUPLE
PACKAGE
T PAD
VCC
PCB
CPA
COPPER PLANE
Figure 36. Equivalent Circuit for CPA Pin
Rev. B | Page 13 of 20
VIAS
Figure 37. Typical Optical Module Structure
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| ADN2530YCPZ-R2 | 制造商:AD 制造商全称:Analog Devices 功能描述:11.3 Gbps, Active Back-Termination, Differential VCSEL Driver |
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