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4

dc2091afa

DEMO MANUAL DC2091A

Figure 3. Demo board SPI Interface

R14

4.99k

R13

4.99k

R15

4.99k

R18

4.99k

ISO_7V_UNREG

ISO_5V_3p3v_REG

ISO_CSb

ISO_SCK_SCL

ISO_SDA_MOSI

ISO_MISO

EE_V

CC

EE_SDA

EE_SCL

EE_GND

GPI01

ISO_GND 

ISO_GND 

ISO_GND

13

8

3

P1

HD-2X7.0.79

1
2
6
4
7
5
10
9
11
12
14

A0
A1
A2

V

SS

V

CC

WP
SCL
SDA

U2 

24LC025

1
2
3
4

8
7
6
5

VCC_B

DIR

VCC_A

GND

U4 

74LVC1T45GW

6

5

4

1

2

3

C18

2.2pF

R20

100Ω

R19

1k

C15

0.1µF

C16

0.1µF

C17

0.1µF

C14

0.1µF

V

CC

VCC_L

VCC_L

VCC_L

GND

U3

NC7WZ17P6X

6

4

5

1

3

2

C13

2.2pF

R26

1k

C11

0.1µF

V

CC

VCC_L

GND

U5

NC7WZ17P6X

6

4

5

1

3

2

C12

2.2pF

C10

2.2pF

R25

1k

R23

1k

R22

200k

SDO

SDI

SCLK

CS

VCC_L

V

CC

VCC_L

JP1

1

2

3

DC2091 F03

E8

DeMo boarD scheMatic

Summary of Contents for LTC5599

Page 1: ... 1300MHz range The SPI interface controls the supply current modulator L LT LTC LTM Linear Technology and the Linear logo are registered trademarks and QuikEval is a trademark of Linear Technology Corporation All other trademarks are the property of their respective owners gain andallowsoptimizationoftheLOcarrierfeedthrough and side band suppression Design files for this circuit board are availabl...

Page 2: ...performance with complex modulation the RC networks at the baseband I Q inputs are not required Quick Start Procedure 1 Remove the demonstration circuit from its protective packaging in an ESD safe working area 2 Turn off the DC power supply as well as the baseband and LO signal sources outputs 3 Connect all test equipment as show in Figure 1 4 Make sure jumper JP1 is installed and the jumper JP2 ...

Page 3: ...µF R10 49 9Ω C8 0 1µF R11 49 9Ω C9 0 1µF REMOVE THE RC NETWORK FOR BEST EVM WITH COMPLEX DIGITAL MODULATION Figure 2 Low Power I Q Modulator Schematic Quick Start Procedure 11 Calculate the Voltage Conversion Gain Gain 20 log VRF OUT 50Ω VIN DIFF I OR Q 12 MeasuretheOutput1dBCompressionPointbyincreas ing the input signal level until the Voltage Conversion Gain degrades by 1dB 13 Measure the Image ...

Page 4: ... HD 2X7 0 79 1 2 6 4 7 5 10 9 11 12 14 A0 A1 A2 VSS VCC WP SCL SDA U2 24LC025 1 2 3 4 8 7 6 5 VCC_B DIR VCC_A GND U4 74LVC1T45GW 6 5 4 1 2 3 C18 2 2pF R20 100Ω R19 1k C15 0 1µF C16 0 1µF C17 0 1µF C14 0 1µF VCC VCC_L VCC_L VCC_L GND U3 NC7WZ17P6X 6 4 5 1 3 2 C13 2 2pF R26 1k C11 0 1µF VCC VCC_L GND U5 NC7WZ17P6X 6 4 5 1 3 2 C12 2 2pF C10 2 2pF R25 1k R23 1k R22 200k SDO SDI SCLK CS VCC_L VCC VCC_L...

Page 5: ...80 00 00 07 0 9 1 FB1 FERRITE BEAD 33Ω 100MHz TDK MPZ1608S331AT 10 1 JP1 HEADER 2 PIN 0 079 SINGLE ROW SULLINS NRPN021PAEN RC 11 1 JP2 HEADER 3 PIN 0 079 SINGLE ROW SULLINS NRPN031PAEN RC 12 2 XJP4 XJP5 SHUNT 2mm Ctrs SAMTEC 2SN BK G 13 6 J1 J6 CONN SMA 50Ω EDGE LANCH E F JOHNSON 142 0701 851 14 1 L1 IND 39nH 0402HP COILCRAFT 0402HP 39NXJLU 15 1 P1 HEADER 2X7PIN 0 079CC MOLEX 87831 1420 16 1 R1 RE...

Page 6: ...NCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the ...

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