LTC5541IUHTRPBF データシートの表示（PDF） - Linear Technology

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LTC5541IUHTRPBF

1.3GHz to 2.3GHz High Dynamic Range Downconverting Mixer

Linear Technology 

BLOCK DIAGRAM

20 19 18 16

21

IFBIAS IF+

IF– IFGND EXPOSED

PAD

IF

AMP

RF

2

LO

AMP

LO2

15

VCC3

14

CT

3

SHDN

5

PASSIVE

MIXER

BIAS

LOSEL

9

LO1

11

VCC2 6

VCC1 8

LOBIAS

7

GND PINS ARE

NOT SHOWN

5541 BD

LTC5541

TEST CIRCUIT

VCCIF

3.1V TO 5.3V

100mA

4:1

T1

C10

L1

L2

C9

C8

IFOUT

190MHz

50Ω

20 19

IFBIAS IF+

1 NC

C1

RFIN

50Ω

2 RF

18 17

IF– GND

16

IFGND

C4

LO2 15

LO2IN

50Ω

VCC3 14

C7

3 CT

LTC5541

GND 13

4 GND

GND 12

C3

SHDN

(0V/3.3V)

5 SHDN

VCC2 LOBIAS VCC1

LOSEL

LO1 11

GND

6

7

8

9

10

VCC

3.1V TO 3.5V

92mA

C5

0.015”

0.062”

0.015”

C6

LOSEL

(0V/3.3V)

5541 TC

RF

GND DC1431A

BOARD

BIAS STACK-UP

GND (NELCO N4000-13)

LO1IN

50Ω

L1, L2 vs IF

Frequencies

IF (MHz)

L1, L2 (nH)

140

270

190

150

240

100

300

56

380

33

REF DES

C1

C3, C4, C6,

C7, C8

C5, C9

C10

L1, L2

T1

(Alternate)

VALUE

2.2pF

22pF

1μF

1000pF

150nH

TC4-1W-7ALN+

(WBC4-6TLB)

SIZE COMMENTS

0402

AVX

0402

AVX

0603

AVX

0402

AVX

0603 Coilcraft 0603CS

Mini-Circuits

(Coilcraft)

Figure 1. Standard Downmixer Test Circuit Schematic (190MHz IF)

5541f

9

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