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T

S E M I C O N D U C T O R, I N C .

VSYMX

VLEVEL

GND

N.C.

GND

DIN

NDIN

GND

VTT

VDD

GND

VSEN10

VSEN1

1

2

3

4

5

50鈩?/div>

6

50鈩?/div>

7

8

9

10

11

12

13

14

* Downset paddle is GND

50鈩?/div>

5鈩?/div>

VEE

50鈩?/div>

28

VEE

GND

BIAS

DRIVEGND

NDOUT

DOUT

DRIVEGND

VEE

N.C.

GND

*

VEE

TQ8318/19

PRELIMINARY DATA SHEET

27

26

25

24

23

22

21

20

19

18

17

16

15

OC192/STM64

E/O Driver

Features

鈥?High performance fully back-

terminated 20mA/1V to 60mA/

3V modulation output driver

(TQ8318)

鈥?Also available without back-

terminations for 25 ohm, 40 mA

to 120mA applications (TQ8319)

鈥?Output can drive direct coupled

Electro-Absorptive Modulator

(EAM/EML), or AC coupled

differential

Mach-Zehnder

modulator or Direct Modulated

Laser (DML)

鈥?NRZ data rates to 10.8Gbs

鈥?Output symmetry adjust

鈥?0 to 1.0V output offset control

鈥?32ps max output risetime

The TQ8318/TQ8319 is a low jitter, high performance electro-optic driver

intended for directly interfacing CML outputs from a multiplexer or clock

recovery device to various EO devices, including cooled and uncooled DFB and

FP lasers, high power VCSEL arrays, EA modulators and differential Mach-

Zehnder (MZ) modulators. The TQ8318 and the TriQuint TGA1328/8652 can

be used in combination for single ended 9V MZ drive applications. The

TQ8318/19鈥檚 symmetry and level controls, low additive jitter, and excellent

rise/fall times while driving significant loads allow the highest system level

performance at low cost. The devices also include an offset control to allow

adjustment of DC bias between 0V and -1V for EAM/EML, or 0-40mA for laser

threshold, applications. The 28 pin TSSOP footprint and low jitter makes the

devices particularly suitable for high port count WDM circuit packs and

modules, and for optical modules. These devices are compatible with

CMOS, SiGe or GaAs muxes with CML, eLVDS, or LVPECL outputs.

鈥?+3.3V CML direct coupled input

can be AC coupled for eLVDS

and LVPECL inputs

鈥?28 pin TSSOP small outline

package or die

鈥?0擄C to +110擄C case operating

temperature range

Applications

鈥?DML with drive to 120mA

鈥?Single-ended 50 ohm 1.0-3.0V

EAM/EML driver (DC coupled with

integral 0 to -1V offset)

鈥?6V differential 50 ohm Mach-

Zehnder driver (AC coupled)

1

型號(hào)

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描述

廠商

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TQ8318

英文版

Telecommunication IC

ETC

TQ8318
TQ8318

英文版

Telecommunication IC

TQ8318

TQ8318 Datasheet

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