TQC9312

3.3 – 3.8 GHz ½

 W Digital Variable Gain Amplifier

28-pin 6x6 mm leadless SMT package

Applications

• 3G / 4G Wireless Infrastructure

• Repeaters

• Small cells

Ordering Information

Part No.

Description

TQC9312

3.3-3.8 GHz DVGA

TQC9312-PCB

Fully Assembled Evaluation Board

Includes USB control board

Standard T/R size = 2500 pieces on a 13” reel.

General Description

The TQC9312 is a digital variable gain amplifier (DVGA)

featuring high linearity over the entire gain control range.

This amplifier module integrates two gain blocks, a

digital-step attenuator (DSA), and a high linearity ½ W

amplifier. The module

has the added feature

of

integrating all matching components, bias chokes and

blocking capacitors. The internal 6-bit DSA provides a

31.5 dB gain control range in 0.5 dB steps, and is

The TQC9312 features variable gain from 9 dB to 40dB

at 3.5 GHz, +44.5 dBm output IP3, and +27.8 dBm

P1dB. The module operates from a single +5V supply

and is available in a compact 28-pin 6x6 mm leadless

SMT package.

The TQC9312 is pin compatible with the TQM879008

(1.5-2.7GHz, 0.5W

P1dB) and TQM879006A (1.4-

2.7GHz, 0.25W P1dB). This allows one to size the right

type of device for specific system level requirements as

well as making the DVGA family ideal for applications

where a common PCB layout is used for different

frequency bands.

Functional Block Diagram

LE

DATA

CLK

NC

GND

RFIN

GND

1

2

3

4

5

6

7

21

20

19

18

17

16

15

GND

GND

GND

GND

GND

RFOUT

GND

DSA

AMP1

Backside Pad

GND

S

P

I

DC Biasing

Matching

DC Biasing

AMP3

AMP2

Matching

Product Features

• 3.3 – 3.8 GHz Frequency Range

• 40 dB Gain (min attenuation state) at 3.5 GHz

• 31.5 dB Gain Range in 0.5 dB Steps

• +44.5 dBm Output IP3

• +27.8 dBm Output P1dB

• Fully Internally Matched Module

• Integrated Blocking Capacitors, Bias Inductors

Pin Configuration

Pin No.

Label

1

LE

2

DATA

3

CLK

4, 22

NC

6

RFIN

8

VCC_AMP1

 / AMP2

14

VCC_AMP3

16

RFOUT

28

VCC_SPI

5, 7, 9-13, 15,17-21, 22-27

GND

Backside Pad

GND

Datasheet: Rev C 12-04-1

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Disclaimer: Subject to change without notice

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www.triquint.com