tza3050 NXP Semiconductors, tza3050 Datasheet

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tza3050

Manufacturer Part Number
tza3050
Description
Tza3050 30 Mbits/s Up To 1.25 Gbits/s Burst Mode Laser Driver
Manufacturer
NXP Semiconductors
Datasheet
1. General description
2. Features
2.1 General
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 A to 1300 A. 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 V 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 V and 5 V laser supplies.
TZA3050
30 Mbits/s up to 1.25 Gbits/s burst mode laser driver
Rev. 03 — 7 April 2005
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 typically 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 Positive 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 V and 5 V laser supply
Product data sheet

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tza3050 Summary of contents

Page 1

... 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 V and 5 V laser supply voltages. The BIAS output is optimized for low voltage requirements giving a minimum of 1.25 V for 3 ...

Page 2

... Product data sheet 30 Mbits 1.25 Gbits/s burst mode laser driver Ordering information Package Name Description HBCC32 plastic thermal enhanced bottom chip carrier; 32 terminals; body 5 Rev. 03 — 7 April 2005 TZA3050 5 0.65 mm © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Version SOT560 ...

Page 3

... BIASIN MON BIAS 100 A V/I 100 mA/V enable burst V/I 100 mA/V 100 100 PRE POST AMP AMP I mod TZA3050 /12.5 R ALARM V AND I MONITOR REFERENCE CURRENT MAXOP VTEMP MAXMON RREF © Koninklijke Philips Electronics N.V. 2005. All rights reserved CCO 24 BIAS ...

Page 4

... Rev. 03 — 7 April 2005 TZA3050 BIAS 23 GND 22 ...

Page 5

... Functional description 7.1 Data and clock input The TZA3050 operates with differential Positive Emitter Coupled Logic (PECL), Low Voltage Positive Emitter Coupled Logic (LVPECL) and Current Mode Logic (CML) data and clock inputs with a voltage swing from 100 (p-p assumed that both data and clock inputs carry a complementary signal with the specifi ...

Page 6

... R is 100 pF. 7.6 Direct current setting The TZA3050 can also operate in open-loop mode with direct setting of the bias and modulation currents. The bias and modulation current sources are transconductance amplifiers and the output currents are determined by the BIASIN and MODIN voltages respectively ...

Page 7

... Philips Semiconductors 7.8 Burst mode The TZA3050 is compliant with burst mode application. Fast switch on and off of bias and modulation currents is allowed in less than 100 ns via pin ENABLE. When internal average loop control is used, the average power settings can be maintained between two bursts of data via an external capacitor on pin CBIAS. ...

Page 8

... CCO CCO V = 3.3 V CCO CCO Conditions 4 layer printed-circuit board in still air with 9 plated vias connected with the heatsink and the first ground plane in the PCB HBCC32 die pad soldered to PCB Rev. 03 — 7 April 2005 TZA3050 Min Max Unit 0.5 +3.5 V 0.5 +3.5 V 0.5 +3.5 V 0.5 +5.3 V ...

Page 9

... CCD CCD - V 1.32 CCD [ 100 - 0.9 1 1150 1300 10 - 1.14 1.20 280 - © Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 = 3.14 V CCO = Max Unit 3.47 V 3.47 V 3. 1000 +10 mV 130 - k 0 150 + ...

Page 10

... Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 = 3.14 V CCO = Max Unit 200 131 mA 0.4 mA 100 112 mA 130 200 0 ...

Page 11

... In the application V BIAS 100 ------------------------------- is mod o(LA) mod 100 + This current is divided between Z mod © Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 = 3.14 V CCO = Max Unit - 0 0.4 V 1. will be V minus BIAS ...

Page 12

... R RREF Min Typ 0. 120 [ [ 100 < 100 < 100 pF 50 100 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 = 3.14 V CCO = MAXMON Max Unit 1.25 Gbits 150 100 ns 100 ...

Page 13

... The graphs indicate the values with a load When the o(LA) 100 I BIAS (mA) I BIAS(min) 0.2 0 0.5 105 mod o(LA) (mA) I o(LA)(min current when LA output o(LA) CCO Rev. 03 — 7 April 2005 TZA3050 BIASIN [mA [mA] and I is given in Table 5, Table note mod g = m(bias) 100 mA/V 1.5 V (V) BIASIN mce136 g = m(mod) 100 mA/V 0.5 1.5 V (V) ...

Page 14

... The equation is: V AVR 5.26 A] ------------- R AVR or increasing R AVR current level AVR I = 1580 5.26 I av(MON) AVR 250 AVR AVR is from 200 A which MAXOP © Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 and BIASIN ; this AVR (Figure 5). A mce137 ...

Page 15

... PWA [ps] ----------------------------------- R PWA typical range is from 100 ps to +100 ps, which corresponds with an R 100 t PWA (ps) 6.7 0 100 Rev. 03 — 7 April 2005 TZA3050 is from 200 A, which MAXMON current can be MAXMON to ground: MAXMON : PWA (Figure 6). The PWA function for a disabled PWA 10 ...

Page 16

... It is not recommended to use the TZA3050 without an external capacitor on pin CBIAS as this would result in a too small time constant, with the risk of pattern dependent behavior. ...

Page 17

... Philips Semiconductors 12.3 Average loop control A simplified application using the TZA3050 with average loop control and a DC-coupled laser at 3 laser voltage is illustrated in determined by the resistor R BIASOUT output connected to the BIASIN input. The modulation current is determined by the MODIN input voltage, which is generated by the resistor R source current of the MODIN pin ...

Page 18

... detail 0.5 4.2 4.2 4.15 4.15 0.2 EUROPEAN PROJECTION © Koninklijke Philips Electronics N.V. 2005. All rights reserved. TZA3050 SOT560 0.15 0.15 0.05 ISSUE DATE ...

Page 19

... Product data sheet 30 Mbits 1.25 Gbits/s burst mode laser driver 2 called small/thin packages. Rev. 03 — 7 April 2005 TZA3050 3 350 mm so called © Koninklijke Philips Electronics N.V. 2005. All rights reserved ...

Page 20

... LBGA, LFBGA, SQFP, [3] , TFBGA, VFBGA, XSON , SO, SOJ [8] [9] [8] , PMFP , WQCCN.. measured in the atmosphere of the reflow oven. The package Rev. 03 — 7 April 2005 TZA3050 Soldering method Wave Reflow not suitable suitable [4] not suitable suitable suitable suitable [5] [6] not recommended suitable ...

Page 21

... The appropriate soldering profile can be provided on request. [9] Hot bar soldering or manual soldering is suitable for PMFP packages. 9397 750 14806 Product data sheet 30 Mbits 1.25 Gbits/s burst mode laser driver Rev. 03 — 7 April 2005 TZA3050 © Koninklijke Philips Electronics N.V. 2005. All rights reserved ...

Page 22

... Data sheet status Change notice Product data sheet - Product specification - Preliminary - specification Rev. 03 — 7 April 2005 TZA3050 Doc. number Supersedes 9397 750 14806 TZA3050_2 9397 750 11274 TZA3050_1 9397 750 10204 - © Koninklijke Philips Electronics N.V. 2005. All rights reserved ...

Page 23

... Rev. 03 — 7 April 2005 TZA3050 © Koninklijke Philips Electronics N.V. 2005. All rights reserved ...

Page 24

... No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Published in The Netherlands TZA3050 Date of release: 7 April 2005 Document number: 9397 750 14806 ...

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