ONET1131EC Datasheet, PDF (12/46 Pages) Texas Instruments – Externally Modulated Laser Driver

ONET1131EC
SLLSEQ6 – SEPTEMBER 2016
www.ti.com
Typical Characteristics (continued)
Typical operating condition is at V_CC = 2.5 V, T_A = 25°C, V_OUT = 2 V_PP Single-ended, DIN = 600 mV_PP differential, CDR
enabled (unless otherwise noted).
40
35
35
30
25
20
15
10
5
Rise Time
Fall Time
0
0 20 40 60 80 100 120 140 160 180 200 220
TXMOD Register 12 Setting - Decimal
D016
TXMODE = 1
30
25
20
15
10
5
0
-40 -20
TXMODE = 1
0
20
40
60
Free-Air Temperature (°C)
Rise Time
Fall Time
80 100
D017
Figure 9. Rise-Time and Fall-Time vs Modulation Current
180
160
140
120
100
80
60
40
20
0
0
200
400
600
800 1000 1200
TXBIAS Register 15 and 16 Setting (Decimal)
D018
Figure 10. Rise-Time and Fall-Time vs Temperature
180
160
140
120
100
80
60
40
20
0
0
200
400
600
800 1000 1200
TXBIAS Register 15 and 16 Setting (Decimal)
D019
Figure 11. Source Bias Current in Open Loop Mode vs Bias
Register Setting
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120 140 160 180
Bias Current (mA)
D020
Figure 13. Bias-Monitor Current I_(MONB) vs Bias Current
Figure 12. Sink Bias Current in Open Loop Mode vs Bias
Register Setting
0.5
0.4
0.3
0.2
0.1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Photodiode Current (mA)
D021
TXPDRNG[0..1] = 00
Figure 14. Photodiode-Monitor Current I_(MONP) vs PD Current
12
Submit Documentation Feedback
Product Folder Links: ONET1131EC
Copyright © 2016, Texas Instruments Incorporated