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參數(shù)資料
| 型號： | ADN2525 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 10.7 Gbps Active Back-Termination, Differential Laser Diode Driver |
| 中文描述： | 10.7 Gbps的主動背終止，差分激光二極管驅(qū)動器 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 531K |
| 代理商： | ADN2525 |
ADN2525
APPLICATIONS INFORMATION
TYPICAL APPLICATION CIRCUIT
Figure 33 shows the typical application circuit for the ADN2525.
The dc voltages applied to the BSET and MSET pins control the
bias and modulation currents. The bias current can be monitored
as a voltage drop across the 1 k resistor connected between
the IBMON pin and GND. The ALS pin allows the user to turn
on/off the bias and modulation currents, depending on the logic
level applied to the pin. The data signal source must be connected
to the DATAP and DATAN pins of the ADN2525 using 50
transmission lines. The modulation current outputs, IMODP
and IMODN, must be connected to the load (TOSA) using 50
differential (25 single-ended) transmission lines. Table 5
shows recommended components for the ac-coupling interface
between the ADN2525 and TOSA. For up-to-date component
recommendations, contact your sales representative.
Table 5.
Component
Value
R1, R2
36
R3, R4
200
C3, C4
100 nF
Rev. 0 | Page 13 of 16
Description
0603 size resistor
0603 size resistor
0603 size capacitor,
Phycomp 223878615649
0402 size inductor,
Murata LQW15AN82NJ0
0603 size inductor,
Murata LQM21FN100M70L
L2, L3, L6, L7
82 nH
L1, L4, L5, L8
10 μH
LAYOUT GUIDELINES
Due to the high frequencies at which the ADN2525 operates,
care should be taken when designing the PCB layout to obtain
optimum performance. Controlled impedance transmission
lines must be used for the high speed signal paths. The length
of the transmission lines must be kept to a minimum to reduce
losses and pattern-dependent jitter. The PCB layout must be
symmetrical, both on the DATAP, DATAN inputs, and on the
IMODP, IMODN outputs, to ensure a balance between the
differential signals. All VCC and GND pins must be connected
to solid copper planes by using low inductance connections.
When the connections are made through vias, multiple vias can
be connected in parallel to reduce the parasitic inductance.
Each GND pin must be locally decoupled with high quality
capacitors. If proper decoupling cannot be achieved using a
single capacitor, the user can use multiple capacitors in parallel
for each GND pin. A 20 μF tantalum capacitor must be used as
general decoupling capacitor for the entire module. For
guidelines on the surface-mount assembly of the ADN2525,
consult the Amkor Technology application note “Application
Notes for Surface Mount Assembly of Amkor’s
MicroLeadFrame (MLF) Packages.”
0
MSET
NC1
ALS
GND
BSET IBMON IBIAS
VCC
GND
DATAP
DATAN
VCC
VCC
IMODP
IMODN
VCC
DATAP
DATAN
C1
C2
MSET
BSET
R5
1k
ADN2525
Z
0
= 50
Z
0
= 25
Z
0
= 25
Z
0
= 50
GND
VCC
GND
VCC
TOSA
C4
C7
20
μ
F
L2
L1
R1
+3.3V
VCC
VCC
VCC
VCC
VCC
TP1
C5
10nF
GND
GND
VCC
C6
10nF
GND
ALS
L7
L8
R4
L6
L5
R3
VCC
L3
L4
R2
VCC
Z
0
= 25
Z
0
= 25
C3
GND
Figure 33. Typical ADN2525 Application Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADN2525ACPZ-500R7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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| ADN2525ACPZ-R2 | 功能描述:IC LASER DRIVER 10.7GBPS 16LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
| ADN2525ACPZ-REEL7 | 功能描述:IC LASER DRIVER 10.7GBPS 16LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 激光驅(qū)動器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:激光二極管驅(qū)動器 數(shù)據(jù)速率:- 通道數(shù):4 電源電壓:3.3V 電流 - 電源:- 電流 - 調(diào)制:- 電流 - 偏置:- 工作溫度:0°C ~ 70°C 封裝/外殼:40-TQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN EP 包裝:托盤 安裝類型:表面貼裝 |
| ADN2525ACPZ-WP | 制造商:Analog Devices 功能描述:Laser Driver 10.7Gbps 1-CH 16-Pin LFCSP EP Waffle 制造商:Analog Devices 功能描述:LASER DRVR 10.7GBPS 1CH 16LFCSP - Waffle Pack |
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