TZA3047BVH/C1,551 NXP Semiconductors, TZA3047BVH/C1,551 Datasheet - Page 16

• Manufacturer Part Number: TZA3047BVH/C1,551
• Description: IC LASER DRIVER 1.25GBPS 32-HBCC
• Manufacturer: NXP Semiconductors
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of TZA3047BVH/C1,551

• 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: 568-1189; 935270561551; TZA3047BVHW-S

Philips Semiconductors
12.1.3
The dual-loop control measures the monitor current (I
corresponding with an optical ‘one’ level and the I
corresponding with the optical ‘zero’ level. The measured
I
monitor current setting and the extinction ratio setting
according to:
The dual-loop controls the bias and the modulation current
for obtaining the I
which correspond with the programmed AVR and ER
settings.
2003 Jun 05
I
ER
MON(one)
handbook, full pagewidth
av(MON)
30 Mbits/s up to 1.25 Gbits/s laser drivers
=
----------------------- -
I
I
MON(zero)
MON(one)
D
=
and I
UAL
I
---------------------------------------------------- -
MON(one)
-
MON(zero)
LOOP CONTROL
MON(one)
Fig.5 Average monitor current and extinction ratio as a function of I
+
2
I
are compared with the average
MON(zero)
I av(MON)
( A)
and I
1500
30
0
MON(zero)
15
10
5
ER
15
30
ER = 20
current levels
I ER
2 A
MON
MON
)
16
Performance of the dual-loop for high data-rate is linked to
the quality of the incoming IMON signal: a high
performance interconnection between monitor photodiode
and MON input is requested for maximum data rate
applications (1.25 Gbits/s).
The operational area of the dual-loop and the control area
of the monitor input current must respect the following
equations:
250 A I
Stability of ER and AVR settings are guaranteed over a
range of temperature and supply voltage variations.
50 A I
I av(MON) = 1580
MON(zero)
MON(one)
I AVR ( A)
I ER ( A)
500 A
TZA3047A; TZA3047B
2500 A
5.26
295
AVR
I AVR A
MGT892
and I
ER
Product specification
.