tza3010b NXP Semiconductors, tza3010b Datasheet - Page 14

• Manufacturer Part Number: tza3010b
• Description: Tza3010b 30 Mbits/s Up To 3.2 Gbits/s A-rate Tm Laser Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
12.1.3
The alarm threshold I
determined by the source current I
The current range for I
corresponds with an I
I
or by connecting R
The operating current equals the bias current plus half of
the modulation current:
12.1.4
The alarm threshold I
determined by the source current I
pin MAXMON. The current range for I
10 to 200 A which corresponds with an I
150 to 3000 A. The I
external current source or by connecting R
ground:
2003 Apr 07
I
I
I
MAXOP
handbook, full pagewidth
oper(alarm)
oper
MON(alarm)
30 Mbits/s up to 3.2 Gbits/s
A-rate
=
current can be sunk by an external current source
I
A
BIAS
A
LARM OPERATING CURRENT
LARM MONITOR CURRENT
=
=
+
N
N
laser driver
I
--------- -
MAXOP
MAXMON
mod
2
MAXOP
oper(alarm)
MON(alarm)
oper(alarm)
MAXMON
MAXOP
I av(MON)
V
--------------------
R
to ground:
MAXOP
V
------------------------
R
( A)
MAXOP
MAXMON
MAXMON
1500
is from 10 to 200 A which
30
current can be sunk by an
0
on the operating current is
from 7.5 to 150 mA. The
on the monitor current is
Fig.5 Average monitor current as a function of I
15
MAXOP
MAXMON
MAXMON
of pin MAXOP.
MON(alarm)
MAXMON
of
is from
to
from
14
12.1.5
The pulse width adjustment time is determined by the
value of resistor R
The t
corresponds with a R
resistance of 6.7 k and a maximum resistance of 20 k .
The PWA function is disabled when the PWA input is
short-circuited to ground; t
PWA function.
t
handbook, halfpage
PWA
t PWA
(ps)
PWA
100
100
I av(MON) = 1580
=
0
R
------------------------------------ -
P
range is from 100 to +100 ps which
PWA
ULSE WIDTH ADJUSTMENT
R
I AVR ( A)
Fig.6 Pulse width adjustment.
PWA
–
10 k
PWA
6.7
AVR
A
PWA
, as illustrated in Fig.6.
.
295
5.26
200ps
range between a minimum
PWA
10
MBL736
I AVR
equals 0 ps for a disabled
R PWA (k )
Product specification
TZA3010B
20
MGT893