LT5503(RevA) データシートの表示（PDF） - Linear Technology

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LT5503
(Rev.:RevA)

1.2GHz to 2.7GHz Direct IQ Modulator and Mixer

Linear Technology 

LT5503

Test Circuit

12

C17

21 (BACKSIDE)

1µF

LTG5N5D03

QB

1 BQ–

BI– 20

C18

1µF

IB

Q

C3

MODRFIN

VCC1

C4

LO1IN

C43

8.2pF

C12

1000pF

2 BQ+

C15

1µF

GC1

3

GC1

BI+ 19

GC2 18 GC2

L3

C10

4 MODIN

17

MODOUT

5 VCCMOD VCCVGA 16

C20

1000pF

6 VCCRF

15

VCCLO2

C16

1µF

R2

L1

47Ω

C1

2.2pF

L2

R1

C7

L4

C11

7 LO1

14

LO2

8 VCCLO1 MODEN 13 MODEN

DMODE 9 DMODE MIXEN 12 MIXEN

C22

1000pF

C14

100pF

I

C2

MODRFOUT

C23

VCC1

C19

0.01µF

LO2IN

10 MX+

MX– 11

L5

L6

C13

8.2pF

VCC2

C21

0.01µF

C5

4

2

3

C6

1

5

C9

T1

MIXRFOUT

NOTE: VCC1 AND VCC2 POWER THE

MODULATOR AND UPMIXER

SECTIONS RESPECTIVELY.

5503 F01

L1

L2

L3

C2, C3, C7

C10

C23

R1

C4

C5, C6

C9

C11

L4

L5,L6

T1

Application Dependent Component Values

1.2GHz Matching

(Modulator Only) 1.9GHz Matching

2.4GHz Matching

33nH

22nH

18nH

12nH

5.6nH

2.7nH

12nH

4.7nH

2.7nH

39pF

15pF

8.2pF

2.7pF

1.8pF

1.2pF

n/a

1.5pF

1.5pF

240Ω

390Ω

390Ω

n/a

15pF

8.2pF

n/a

1.8pF

2.2pF

n/a

15pF

2.7pF

n/a

2.2pF

1.2pF

n/a

6.8nH

4.7nH

n/a

5.6nH

2.2nH

n/a

LDB211G9010C-001 LDB212G4005C-001

Figure 1. Test Schematic for 1.2GHz, 1.9GHz and 2.4GHz Applications

For more information www.linear.com/LT5503

5503fa

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