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TZA3050

Features: · Burst mode laser driver from 30 Mbits/s to 1.25 Gbits/s· Bias current from 10 mA up to 100 mA· Modulation current from 6 mA up to 100 mA· Switch on and off time for bias and modulation currents below 100 ns· Integrated burst mode switching and memory circuit· Rise and fall times typica...

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SeekIC No. : 004534367 Detail

TZA3050: Features: · Burst mode laser driver from 30 Mbits/s to 1.25 Gbits/s· Bias current from 10 mA up to 100 mA· Modulation current from 6 mA up to 100 mA· Switch on and off time for bias and modulation c...

TZA3050 Data Sheet

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Part Number:
TZA3050
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Burst mode laser driver from 30 Mbits/s to 1.25 Gbits/s
· Bias current from 10 mA up to 100 mA
· Modulation current from 6 mA up to 100 mA
· Switch on and off time for bias and modulation currents below 100 ns
· Integrated burst mode switching and memory circuit
· Rise and fall times typical 120 ps
· Jitter below 30 ps peak-to-peak value
· Retiming function via external clock with disable option
· Pulse width adjustment function with disable option
· Positive Emitter Coupled Logic (PECL), Low Voltage Emitter Coupled Logic (LVPECL) and Current Mode Logic (CML) compatible data and clock inputs
· Internal common mode voltage available for AC-coupled data and clock inputs and for single-ended applications
· 3.3 V supply voltage
· DC-coupled laser for 3.3 and 5 V laser supply.
· Average power loop control
· Optional direct setting of bias current
· Direct setting of modulation current.
· Alarm function on operating current
· Alarm function on monitor current
· Soft start-up on bias and modulation currents during power-up.


Application

· Burst mode laser driver.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER
CONDITION MIN. MAX. UNIT
VCCD digital supply voltage   -0.5 +3.5 V
VCCA analog supply voltage   -0.5 +3.5 V
VCCO RF output supply voltage 3.3 V laser supply -0.5 3.5 V
5 V laser supply -0.5 5.3 V
Vo(LA) output voltage at pin LA VCCO = 3.3 V 0.8 4.1 V
VCCO = 5 V 1.2 4.5 V
Vo(LAQ) output voltage at pin LAQ VCCO = 3.3 V 1.6 4.5 V
VCCO = 5 V 2.0 5.2 V
VBIAS bias voltage VCCO = 3.3 V 0.8 3.6 V
VCCO = 5 V 0.8 4.1 V
Vn voltage on all other input and output pins
analog inputs and outputs
digital inputs and outputs		   -0.5
-0.5		 VCCA+0.5
VCCD+0.5		 V
V
In input current on pins
MAXOP, MAXMON, RREF, PWA and AVR
VTEMP and BIASOUT
ALOP, ALMON and MON		   -1.0
-1.0
0		 0
+1.0
5.0		 mA
mA
mA
Tamb ambient temperature   -40 +85 °C
Tj junction temperature   -40 +125 °C
Tstg storage temperature   -65 +150 °C



Description

The TZA3050 is a fully integrated laser driver for burst mode optical transmission systems with data rates up to 1.25 Gbits/s. The TZA3050 incorporates all necessary control and protection functions for a laser driver application with very few external components required and low power dissipation. The average-loop controls the average monitor current in a typical programmable range from 150 to 1300 mA. The average-loop settings are memorized internally between bursts of data. The bias and modulation currents have a fast switch on and off time of less than 100 ns.

The design is made in the Philips BiCMOS RF process and is available in a HBCC32 package. The TZA3050 is intended for use in an application with a DC-coupled laser diode for both 3.3 and 5 V laser supply voltages.The BIAS output is optimized for low voltage requirements giving a minimum of 1.25 V for 3.3 and 5 V laser supplies.




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