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dc1846af

DEMO MANUAL DC1846A

PARTS LIST

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

1

0

CI1_A, C3_F2, C3_F3, CP_A, C14

CAP, 0603

OPT

2

6

CI1_P, C5, C12, C13, C18, C31

CAP, 0603 1.0µF 10% 10V X7R

TAIYO YUDEN, LMK107B7105KA-T

3

0

CI2_P, CI2_A

CAP, 1206

OPT

4

1

CP_P

CAP, 0603 47nF 10% 50V X7R

AVX 06035C473KAT2A

5

3

C1, C19, C33

CAP, 7361 47µF 10% 35V, 7361

AVX TAJV476K035RNJ

6

3

C2, C21, C35

CAP, 0805 0.1µF 10% 50V X7R

AVX 08055C104KAT2A

7

2

C3, C16

CAP, 7343 330µF 10% 10V TANT

AVX TPME337K010R0035

8

9

C4, C6, C11, C30, C36, C39, C41, C43, C44

CAP, 0402 0.1µF 10% 10V X7R

TAIYO YUDEN, LMK105B7104KV-F

9

1

C7

CAP, 7343 47µF 10% 20V TANT

AVX TAJD476K020RNJ

10

2

C8, C15

CAP, 0402 1µF 10% 16V X5R

TDK C1005X5R1C105K

11

4

C17, C23, C34, C45

CAP, 0402 0.01µF 10% 16V X7R

AVX 0402YC103KAT2A

12

1

C2_F1

CAP, 0603 33nF 10% 50V X7R

AVX 06035C333KAT2A

13

0

C25, C28

CAP, 0402

OPT

14

4

C26, C29, C37, C38

CAP, 0402 100pF 10% 16V NPO

AVX 0402YA101KAT2A

15

1

D1

LED, RED

PANASONIC LN1251CTR

16

10

E3, E6, E11-E18

TURRET

MILL-MAX 2501-2-00-80-00-00-07-0

17

1

JP1

HEADER, 3-PIN 2mm

SAMTEC TMM-103-02-L-S

18

4

J2, J5, J6, J7

CONN, SMA 50Ω EDGE-LAUNCH

E.F. JOHNSON, 142-0701-851

19

0

J3, J4

CONN, SMA 50Ω Straight

OPT

20

4

J9, J10, J11, J12

JACK, BANANA

KEYSTONE 575-4

21

1

J13

HEADER, 7 DUAL PIN, 2mm

MOLEX 87831-1420

22

0

L1

IND, 0402

OPT

23

2

L2, L3

IND, 0402 68nH 5%

COILCRAFT 0402HPH-68NXJLW

24

1

L1_F1

RES, 0805, 0Ω JUMPER

VISHAY CRCW08050000Z0EA

25

0

L1_F2, L1_F3

IND, 0805

OPT

26

2

R1_F1, RZ_P

RES, 0603 21Ω 1% 1/10W

VISHAY CRCW060321R0FKED

27

5

R1, R2, R11, R20, R26

RES, 0402 4.99kΩ 1% 1/16W

VISHAY CRCW04024K99FKED

28

1

R4

RES, 0402 330Ω 1% 1/16W

NIC NRC04F3300TRF

29

1

R5

RES, 0402 51.1Ω 1% 1/10W

VISHAY CRCW040251R1FKED

30

4

R7, R8, R18, R19

RES, 0402 200kΩ 1% 1/16W

VISHAY CRCW0402200KFKED

31

4

R9, R14, R16, R2_F2

RES, 0603 0Ω JUMPER

VISHAY CRCW06030000Z0EA

32

3

R12, R21, R22

RES, 0402 100Ω 5% 1/16W

VISHAY CRCW0402101RJKED

33

0

R13, R15, R2_F3, RZ_A, R31

RES, 0603

OPT

34

0

R23, R24

RES, 0402

OPT

35

5

R25, R27, R28, R29, R30

RES, 0402 0Ω JUMPER

VISHAY CRCW04020000Z0EA

36

1

U1

IC, QFN28IUFD-4X5

LINEAR TECH. LTC6947IUFD

37

1

U2

IC, LOW NOISE AMP, SO8

LINEAR TECH. LT1678IS8#PBF

38

1

U3

IC, VCO

CRYSTEK, CVCO55CC-2328-2536

39

0

U4

IC, CRYSTAL OSCILLATOR

OPT

40

2

U5, U10

IC, DUAL BUFFER, SC70

FAIRCHILD SEMI NC7WZ17P6X

41

1

U8

I.C., Serial EEPROM, TSSOP8

MICROCHIP, 24LC025-I /ST

42

1

U11

IC, DUAL TRANSCEIVER, SOT363

NXP 74LVC1T45GW

43

1

SHUNT ON JP1 (2&3)

SHUNT, 2mm CTRS

SAMTEC 2SN-BK-G

Summary of Contents for DC1846A

Page 1: ...nology Corporation All other trademarks are the property of their respective owners A DC590 USB serial controller board is used for SPI com munication with the LTC6947 controlled by the supplied FracN...

Page 2: ...the DC590 to one of your computer s USB ports with the included USB cable FracNWizard Installation The FracNWizard software is used to communicate with the LTC6947 synthesizer It uses the DC590 to tr...

Page 3: ...uirements and Characteristics table Be sure to terminate any unused RF output with 50 or poor spurious performance may result 2 Choose the MUTE jumper setting JP1 GND 3 3V MUTE position Select GND to...

Page 4: ...le is required in the loop filter to limit the op amp s noise contribution to the VCO phase noise Selecting Loop Filter Type The DC1846A can use either an active or a passive loop filter depending upo...

Page 5: ...V 22mA 5V VCO Power Supply Input V VCO turret Low noise and spur free 5V 30mA REF Reference Frequency Input J2 SMA connector Low noise 100MHz 6 to 10dBm into 50 see Note RF and RF Two Outputs J6 and J...

Page 6: ...DGE LAUNCH E F JOHNSON 142 0701 851 19 0 J3 J4 CONN SMA 50 Straight OPT 20 4 J9 J10 J11 J12 JACK BANANA KEYSTONE 575 4 21 1 J13 HEADER 7 DUAL PIN 2mm MOLEX 87831 1420 22 0 L1 IND 0402 OPT 23 2 L2 L3 I...

Page 7: ...RINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLO...

Page 8: ...MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FO...

Page 9: ...ogy Corporation is believed to be accurate and reliable However noresponsibilityisassumedforitsuse LinearTechnologyCorporationmakesnorepresenta tion that the interconnection of its circuits as describ...

Page 10: ...DING 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 CONS...

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