GN2014A Datasheet, PDF (12/18 Pages) Gennum Corporation – XFP Tx Signal Conditioner with VCSEL Driver

C ₁₂
100nF
0V to 3.0V
Digital to Analog
Converter
R₃
11k
See Table 3-3 for more details
9 SWNGSel
10k
Q1
1k
To Current Mirror
Q2
1k
GN2014A
Figure 3-3: GN2014A SWNGSel Control Application Circuit
Table 3-3: GN2014A Output Amplitude vs. Swing Select Voltage
Swing Select Voltage at
DAC
(assumes 11kΩ resistor in
series)
0-0.8
1.2V
1.8V
2.3V
2.8V (Recommended Max)
3.3V (Reliability Max)
GN2014A Output
(Typical, LDDisable LOW)
Soft turn on
150mVpp single ended
350mVpp single ended
500mVpp single ended
750m Vpp single ended
Not Recommended
Comments
3mA modulation current
7mA modulation current
10mA modulation current
15mA modulation current
18mA modulation max
current
GN2014A XFP Tx Signal Conditioner with VCSEL Driver
Data Sheet
39260 - 8
May 2010
12 of 18
Proprietary & Confidential