MAX3867 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX3867 Datasheet PDF : 12 Pages
| |||
+3.3V, 2.5Gbps SDH/SONET Laser Driver
with Automatic Power Control
Typical Operating Characteristics (continued)
(VCC = +3.3V, load as shown in Figure 2, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
(EXCLUDE IBIAS, IMOD, 25Ω LOAD)
100
90
80
VCC = +5V
70
60
50
40
VCC = +3.3V
30
20
10
IMOD = 30mA
IBIAS = 45mA
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
PULSE-WIDTH DISTORTION
vs. IMOD
25
20
VCC = +3.3V
15
10
VCC = +5V
5
0.
5 10 20 30 40 50 60
IMOD (mA)
PIN
1, 42, 45
2, 7, 12, 15, 16,
3, 6, 8, 11, 18
4
5
9
10
13
14
17
19
21, 26, 28, 31, 39,
41, 43
22
20, 23, 33
24, 27, 32
NAME
GND2
GND1
VCC1
DATA+
DATA-
CLK+
CLK-
LATCH
ENABLE
SLWSTRT
FAIL
N.C.
APCFILT
GND4
VCC4
Pin Description
FUNCTION
Ground for internal reference
Ground for digital circuits
Power supply for digital circuits
Positive PECL Data Input
Negative PECL Data Input
Positive PECL Clock Input. Connect to VCC if latch function is not used.
Negative PECL Clock Input. Leave unconnected if latch function is not used.
TTL/CMOS Latch Input. High for latched data, low for direct data.
TTL/CMOS Enable Input. High for normal operation, low to disable laser bias and modulation
currents.
A capacitor from this pad to ground delays the turn-on time of laser bias and modulation
currents.
TTL/CMOS output. Indicates APC failure when low.
No Connection. Leave unconnected.
Connect a capacitor (CAPCFILT = 0.1µF) from this pad to ground to filter the APC noise.
Ground for output circuitry
Power Supply for output circuitry
6 _______________________________________________________________________________________
Share Link: 