TZA3047BVH/C1,557 NXP Semiconductors, TZA3047BVH/C1,557 Datasheet - Page 18

• Manufacturer Part Number: TZA3047BVH/C1,557
• Description: IC LASER DRIVER 1.25GBPS 32-HBCC
• Manufacturer: NXP Semiconductors
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of TZA3047BVH/C1,557

• Data Rate: 1.25Gbps
• Number Of Channels: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 40mA
• Current - Modulation: 100mA
• Current - Bias: 100mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-HBCC
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935270561557; TZA3047BVHW; TZA3047BVHW

I
Philips Semiconductors
12.2
A simplified application using the TZA3047A with dual-loop control and with an AC-coupled laser at 3.3 V laser voltage
is illustrated in Fig.7. The average power level and the extinction ratio are determined by the resistors R
The MODOUT and 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
MAXOP. This alarm detects the end of life of the laser.
The resistor R
2003 Jun 05
oper(alarm)
handbook, full pagewidth
30 Mbits/s up to 1.25 Gbits/s laser drivers
TZA3047A with dual-loop control
=
N
PWA
MAXOP
3.3 V
3.3 V
ALRESET
enables pulse width adjustment for optimizing the eye diagram.
V CCD
V CCA
DINQ
TEST
CINQ
GND
DIN
CIN
V
--------------------
R
MAXOP
MAXOP
Fig.7 TZA3047A with AC-coupled laser and dual-loop control.
1
2
3
4
5
6
7
8
9
–
32
10
TC
-------------------------------------------------------------- -
11
31
VTEMP
30
TZA3047A
12
R
VTEMP
13
29
T
28
14
j
–
25 C
15
27
3.3 V
16
26
18
19
18
17
25
24
23
22
21
20
BIAS
GND
LA
LA
LAQ
LAQ
GND
MDB317
VTEMP
TZA3047A; TZA3047B
connected between VTEMP and
laser with
monitor diode
Product specification
AVR
and R
ER
.