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UG-655 

EVAL-ADA4350RUZ-P User Guide 

 

EVALUATION BOARD SCHEMATIC AND ARTWORK 

VD D

VC C

R1

C6

R8

CN 6

VE E

R12

C2

J1

C5

RG

VD D

L2

L1

VCC

R5

J3: 6

J3:11

J3:23

J3:28

J3:36

J3:46

J3:52

J3:58

J3:43

J3:83

J3:85

RF0

CF2

RF2

RF3

CF5

RF5

J3:8 0

J3:11 6

R2 6

R2 4

R2 2

R2 0

R1 8

VD D

VD D

R7

VE E

C1 0

10 uF 120 6

CN2

CN1

C8

R4

C1

J3: 4

J3:40

J3:17

J3:3

J3:82

J3:84

Digikey 732-3852-1-ND

CF0

CF3

RF1

RF4

J3:5 6

J3:7 9

R2 3

R2 5

R1 7

R2 1

R1 9

CN 5

C1 4

7

WP

8

VDD

2

A1

1

A0

6

SCL

5

SDA

3

A2

4

DGND

24LC32A-I/MS

IC2

SPD EEPROM

R1 1

R1 0

RF

CN 7

VCM-IN

Outputs

C4

CN 4

CN 3

C9

10u F 120 6

J2

C1 3

10u F 120 6

C7

C1 2

CF1

CF4

VD D

VDD

C3

J3:11 5

J3:10 9

J3:9 8

J3:9 3

J3:8 6

J3:7 5

J3:6 9

J3:6 3

SDO

SDI

Digikey 723-3855-1-ND

R1 6

R3

Non- Inverting Input

J3:11 7

J3:8 1

J3:10 4

J3:11 8

SPD Connector

R2 7

CLK

Power Supply connectors

LATCH

CS

R1 5

R2

R6

Simulated Photo Diode
& Inverting Input

R9

R2 8

R2 9

R1 4

R1 3

C1 1

External SPI Control access

External amp/Filter in & outputs

Power Tabl e

Ref Des

IC1

Device(Type)

ADA4350

Package

TSSOP-28

VEE

14

DGND

18

VCC

15

DVDD

24

12

S

W

A

_

IN

16

E

N

17

M

OD

E

7

F

B

2

8

F

B

1

19

L

A

T

CH

/P

0

20

S

C

L

K

/P

1

5

F

B

4

6

F

B

3

22

S

DI

/P

3

23

C

S

/P

4

25

R

E

F

28

V

IN

1

2

R

F

1

1

S

W

A

_

O

U

T

27

S

W

B

_

O

U

T

26 VOUT2

3 VOUT1

13

S

W

B

_

IN

9

F

B

0

21

S

DO

/P

2

4

F

B

5

11

IN-P

10

IN-N

ADA4350

IC1

49.9 

100 k

953 

49.9 

49.9 

10 k

10 k

100 k

100 k

51 pF

0.1 uF

0.1 uF

0.1 uF

0.1 uF

1 k

3 k

10 k

30 k

100 k

15 pF

6.8 pF

3.3 pF

2.2 pF

1 pF

1

1998-

010

 

Figure 10. Schematic 

Rev. 0 | Page 6 of 8 

Содержание EVAL-ADA4350RUZ-P

Страница 1: ...ows the component side of the bare evaluation board and Figure 2 shows the solder side of the bare evaluation board The evaluation board is a 6 layer printed circuit board PCB designed to minimize leakage currents with its guard ring features It accepts SMA edge mounted connectors on the inputs and outputs for efficient connection to test equipment or other circuitry The evaluation board component...

Страница 2: ... 1 Revision History 2 Evaluation Board Hardware 3 Power Supplies 3 Guard Ring Features 3 Frequency Response 3 Evaluation Board Control 4 Evaluation Board Electrostatic Guarding 5 Evaluation Board Schematic and Artwork 6 Ordering Information 8 Bill of Materials 8 REVISION HISTORY 5 15 Revision 0 Initial Version Rev 0 Page 2 of 8 ...

Страница 3: ...iode capacitance is represented by C1 a 51 pF capacitor The photodiode current is simulated by the input voltage Vin N and R2 a 100 kΩ resistor IPHOTODIODE Vin N 100 kΩ The total capacitance 91 pF seen by the TIA is the sum of the ADA4350 input capacitances 2 pF 3 pF the photodiode capacitance 51 pF and the parasitic capacitance of the electrostatic guarding 35 pF The five feedback resistor values...

Страница 4: ...c 1 on each digital line selects the corresponding gain Applying a Logic 1 to more than one line at a time connects all the selected gains in parallel SPI Control Serial Mode Set the MODE switch and LATCH switch to Logic 0 on position and the ENABLE switch to Logic 1 off position Set all other gain select switches P1 to P4 to Logic 1 off position and perform the following steps 1 Plug the Analog D...

Страница 5: ...The evaluation board uses the guard ring to minimize leakage currents entering the inputs causing offsets Note that the guard ring is employed all the way from the top copper layer through the inner layers and into the ground layer 11998 007 Figure 7 Top Layer Guard Ring Drawing 11998 008 Figure 8 Ground Layer Guard Ring Drawing 11998 009 Figure 9 Guard Ring Details ...

Страница 6: ...6 J3 75 J3 69 J3 63 SDO SDI Digikey 723 3855 1 ND R16 R3 Non Inverting Input J3 11 7 J3 81 J3 10 4 J3 11 8 SPD Connector R27 CLK Power Supply connectors LATCH CS R15 R2 R6 Simulated Photo Diode Inverting Input R9 R28 R29 R14 R13 C11 External SPI Control access External amp Filter in outputs Power Tabl e Ref Des IC1 Device Type ADA4350 Package TSSOP 28 VEE 14 DGND 18 VCC 15 DVDD 24 12 SWA_IN 16 EN ...

Страница 7: ...EVAL ADA4350RUZ P User Guide UG 655 Rev 0 Page 7 of 8 11998 011 Figure 11 Component Side Assembly Drawing 11998 012 Figure 12 Layer Stackup ...

Страница 8: ...s NOT sold to Customer all rights not expressly granted herein including ownership of the Evaluation Board are reserved by ADI CONFIDENTIALITY This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of th...

Страница 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc EVAL ADA4350RUZ P ...

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