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GaAs MMIC 4x2 SWITCH

MATRIX, 0.2 - 3.0 GHz

v01.0409

General Description

Features

Functional Diagram

The HMC276LP4 & HMC276LP4E are low-cost 4x2

switch matrices in leadless QFN 4x4 mm surface

mount packages for use in RF multiplexing applicati-

ons from 200 to 3000 MHz. A positive voltage con-

trolled 4 bit decoder is integrated on the switch. The

switches may be used in either 75 ohm or 50 ohm

systems.

Both switch outputs (OP1 & OP2) can independently

select any of the four inputs (HH, HL, VH, VL) or

simultaneously select the same inputs. Note that the

switch is bi-directional and input/output functionality

may be interchanged. The recommended loading

impedance is 62.5 ohms on each input (HH, HL, VH,

VL) and 75 ohms on each output (OP1 & OP2). All

data presented was measured in a 50 ohm (input/

output) system.

4x2 Switch Matrix Using One IC

4x4 Switch Matrix Using Two ICs

Integrated 4 Bit Decoder

Single Positive Supply: Vdd = +5V

Typical Applications

4x2 Switch Matrix for 0.2 - 3.0 GHz Applications:

• Cable Modem

• CATV

• Cellular Systems

• DBS

Parameter

Frequency

Min.

Typ.

Max.

Units

Insertion Loss

200 MHz

700 - 3000 MHz

6.0

6.0

7.0

dB

dB

Isolation

200 MHz

700 - 950 MHz

950 - 1450 MHz

1450 - 2150 MHz

2150 - 3000 MHz

40

33

31

55

44

37

35

dB

dB

dB

dB

dB

Return Loss (Input; VL, HL, VH, HH)

200 MHz

700 - 3000 MHz

14

25

18

dB

dB

Return Loss (Output; OP1, OP2)

200 MHz

700 - 3000 MHz

16

20

20

dB

dB

Output IP3

700 - 3000 MHz

31

37

dBm

Input Power for 1 dB Compression

700 - 3000 MHz

22

26

dBm

Switching Speed

tRISE / tFALL (10/90% RF)

tON / tOFF (50% CTL to 10/90% RF)

700 - 3000 MHz

140

350

ns

ns

See OP1/2 Isolation Tables