RF2705PCBA-41X View Datasheet(PDF) - RF Micro Devices

Part Name

Description

MFG CO.

RF2705PCBA-41X

QUADRATURE DEMODULATOR

RF Micro Devices 

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RF2705

Application Schematic

MODE A

VCC

I SIG P

I SIG N

MODE B

1 nF

VCC

5.6 pF

LO HB

3.9 nH

1.8 pF

LO LB

22.0 nH

3 pF

MODE C

MODE D

Q SIG N

Q SIG P

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

10 nF

1 nF

VCC

2.2 nH

4.3 pF

1 kΩ

4.3 pF

1 pF

2.2 nH

T1

RF OUT WB

2:1

VCC

VCC

430 Ω

430 Ω

4.3 nH

1.6 pF

1.6 pF

4.3 nH

T2

RF OUT HB

2:1

VCC

VCC

12 nH

3.3 pF

1 kΩ

3.3 pF

0.5 pF

12 nH

T3

RF OUT LB

2:1

VCC

GC

5-132

Rev A4 041026

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