1

TGA4803

May 2009 © Rev -

Description

The TriQuint TGA4803 is a medium power

wideband AGC amplifier that typically provides 8dB

small signal gain with 3dB AGC range. Typical input

and output return loss is >10dB. Typical Noise

Figure is 5dB at 3GHz. Typical saturated output

power is 17dBm. Small signal 3dB BW is >50GHz.

RF ports are DC coupled enabling the user to

customize system corner frequencies.

The TGA4803 is an excellent choice for 43Gb/s

NRZ applications. The TGA4803 is capable of

driving a single Electro-Absorptive optical Modulator

(EAM) with electrical Non-Return to Zero (NRZ)

data. In addition, the TGA4803 may also be used as

a transmit predriver or a receive gain block.

Drain bias may be applied through the output port

for best efficiency or through the on-chip drain

termination. Three stages in cascade demonstrated

3.8Vpp output voltage swing with 350mV at the input

when stimulated with 43Gb/s 2^31-1prbs NRZ data.

The TGA4803 requires off-chip decoupling and

blocking components. Each device is 100% DC and

RF tested on-wafer to ensure performance

compliance. The device is available in die form.

Lead-free and RoHS compliant

Key Features and Performance

•

0.15um pHEMT Technology

•

DC to >50GHz Linear BW

•

8dB Gain, 14dBm @ P1dB

•

Group Delay Ripple +/- 6ps to 50 GHz

•

<10ps Edge Rates (20/80)

•

3.5Vpp 43Gb/s NRZ PRBS

•

Bias: Vd=6.5V, 100mA

•

Chip Size: 1.90 x 1.09 x 0.10 mm

Primary Applications

•

Test Equipment

•

Ultra Wideband

•

43Gb/s OC768 EAM Driver

•

43Gb/s OC768 Gain Stage:

Single Stage

40Gb/s NRZ 2^31-1 PRBS

40 Gb/s Data Eye: 3.7V(amp) **

** Input 40Gb/s data stream generated

using an Anritsu MUX. Vin=1.8Vpp.

Measured Performance

-30

-25

-20

-15

-10

-5

0

5

10

15

0

1020

30

4050

607080

Frequency (GHz)

S11

S22

S21

DC to >50 GHz MPA with AGC

Datasheet subject to change without notice

TriQuint Semiconductor: www. triquint.com (972)994-8465 Fax (972)994-8504 Info-mmw@tqs.com