RF2705GPCBA-41X View Datasheet(PDF) - RF Micro Devices

Part Name

Description

MFG CO.

RF2705GPCBA-41X

LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER

RF Micro Devices 

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RF2705G

Evaluation Board Schematic

J2

I SIG P

J1

I SIG N

MODE B

50 Ω μstrip

50 Ω μstrip

VCC

MODE A

C1

1 nF

J3

HB LO

J6

LB LO

MODE C

MODE D

J8

Q SIG N

J9

Q SIG P

C6

5.6 pF

50 Ω μstrip

L1

3.9 nH

C4

1.8 pF

50 Ω μstrip

L6

22 nH

C13

3 pF

50 Ω μstrip

50 Ω μstrip

24

23

22

1

Note: The die flag is the

chip's main ground.

2

DIV +45°

3

2

-45°

4

Flo +45°

x2 -45°

5

Mode Control

and Biasing

6

7

8

9

21

20

19

18

17

16

Σ

15

14

Power

Control

13

10

11

12

C14 C15

10 nF 1 nF

GC

VCC

C7

12 pF

L2

2.2 nH

C2

4.3 pF

L3

2.2 nH

R1

1 kΩ

C3

4.3 pF

C12

1.3 pF

VCC

C11

22 pF

R2

430 Ω

L4

4.3 nH

L5

C5

4.3 nH

DNI

C9

R3

1.6 pF 430 Ω

C10

1.6 pF

50 Ω μstrip

T1

Murata

LDB211G9020C-001

J4

WB RF OUT

50 Ω μstrip

T2

Murata

LDB211G8020C-001

J5

HB RF OUT

VCC

C8

100 pF

L7

12 nH

L8

12 nH

C18

0.5 pF

C17

3.3 pF

R4

1 kΩ

C16

3.3 pF

50 Ω μstrip

T3

Murata

LDB21906M20C-001

J7

LB RF OUT

P1-1

P2

1 VCC

2 GND

P1-3 3 GC

CON3

P2-1

P1

1 MODE D

P2-2 2 MODE C

P2-3 3 MODE B

P2-4 4 MODE A

CON4

Rev A0 DS060206

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

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