tza3011a NXP Semiconductors, tza3011a Datasheet - Page 21

• Manufacturer Part Number: tza3011a
• Description: 30 Mbit/s Up To 3.2 Gbit/s A-rate Tm Laser Drivers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14437
Product data sheet
12.2 TZA3011A with dual-loop control
A simplified application using the TZA3011A with dual-loop control and with an
AC-coupled laser at 3.3 V laser voltage is illustrated in
and the extinction ratio are determined by the resistors R
BIASOUT outputs are connected to the MODIN and the BIASIN inputs respectively. The
alarm threshold on the operating current is made temperature dependent with resistor
R
laser.
The resistor R
I
oper alarm
Fig 8. TZA3011A with AC-coupled laser and dual-loop control
VTEMP
3.3 V
3.3 V
ALRESET
connected between VTEMP and MAXOP. This alarm detects the end of life of the
V
TEST
V
DINQ
CINQ
GND
CCD
CCA
DIN
CIN
=
PWA
N
1
2
3
4
5
6
7
8
9
MAXOP
enables pulse width adjustment for optimizing the eye diagram.
10
32
Rev. 06 — 20 January 2005
31
11
V
-------------------- -
R
12
30
TZA3011A
MAXOP
MAXOP
13
29
14
28
–
TC
------------------------------------------------------------- -
27
15
3.3 V
VTEMP
30 Mbit/s up to 3.2 Gbit/s A-rate
16
26
TZA3011A; TZA3011B
R
19
18
17
25
24
23
22
21
20
VTEMP
T
BIAS
GND
LA
LA
LAQ
LAQ
GND
j
mgt895
–
25 C
Figure
AVR
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
and R
8. The average power level
ER
. The MODOUT and
laser with
monitor diode
laser drivers
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