参数资料
型号: ADN2531ACPZ-R2
厂商: Analog Devices Inc
文件页数: 15/20页
文件大小: 0K
描述: IC LASER DRIVER 11.3GBPS 16LFCSP
标准包装: 1
类型: 激光二极管驱动器
数据速率: 11.3Gbps
通道数: 1
电源电压: 3 V ~ 3.6 V
电流 - 电源: 36mA
电流 - 调制: 80mA
电流 - 偏置: 100mA
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: ADN2531ACPZ-R2DKR

Data Sheet
APPLICATIONS INFORMATION
TYPICAL APPLICATION CIRCUIT
Figure 40 shows a typical application circuit for the ADN2531 .
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 750 ? resistor connected between
the IBMON pin and GND. The dc voltage applied to the CPA
pin controls the crosspoint in the output eye diagram. By tying
the CPA pin to V CC , the CPA function is disabled. The ALS pin
allows the user to turn the bias and modulation currents on and
off, depending on the logic level applied to the pin. The data
signal source must be connected to the DATAP and DATAN
ADN2531
the low frequency cutoff performance is dependent on the dc
blocking capacitance and the transmission line impedance. For
additional applications information and optical eye diagram
performance data, consult the relevant application notes on the
ADN2531 product page at www.analog.com .
Table 6. Recommended Components
Component Value Description
R1, R2 110 Ω 0603 size resistor
R3, R4 300 Ω 0603 size resistor
R13, R14 Varies The resistor value and size are TOSA
load impedance dependent
pins of the ADN2531 using 50 ? transmission lines. The
modulation current outputs, IMODP and IMODN, must be
connected to the load (TOSA) using 100 ? differential (50 ?
single-ended) transmission lines.
Table 6 provides a list of recommended components for the ac
coupling interface between the ADN2531 and the TOSA. The
reference circuit can support up to 11.3 Gbps applications, and
C3, C4
L6, L7
L2, L3
L1, L4, L5, L8
100 nF
160 nH
10 μH
0402 size capacitor,
Phycomp 223878719849
0603 size inductor,
Murata LQW18ANR16
0603 size chip ferrite bead, Murata
BLM18HG601
0805 size inductor,
Murata LQM21FN100M70L
C8
GND
R5
750?
GND
V CC
100nF
V CC
BSET
TP1
C5
10nF
L1
R1
L8
R4
V CC
BSET IBMON IBIAS GND
V CC
VCC
VCC
V CC
L2
R14
L7
Z 0 = 50?
Z 0 = 50?
Z 0 = 50?
DATAP
DATAP
IMODP
Z 0 = 50?
C1
ADN2531
GND
Z 0 = 50?
C4
Z 0 = 50?
TOSA
DATAN
DATAN
IMODN
C2
GND
C3
V CC
VCC
VCC
V CC
L3
R13
L6
MSET
CPA
ALS
GND
V CC
MSET
C6
10nF
L4
R2
L5
R3
+3.3V
V CC
C7
20μF
CPA
ALS
GND
V CC
V CC
GND
Figure 40. Typical ADN2531 Application Circuit
Rev. A | Page 15 of 20
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