background image

Micrel, Inc.

SY87725L Evaluation Board

July 2008

11

M9999-071108-B

[email protected]

 or (408) 955-1690

BiIl of Materials

Item

Part Number

Manufacturer

Description

Qty

C1-C3

VJ0603Y104JXJAT

Vishay

(1)

0.1

m

F, ceramic capacitor, size 0603

3

C4-C6

VJ1206Y106JXJAT

Vishay

(1)

10 

m

F, ceramic capacitor, size 1206

3

C7-C36, C38-
C42, C45-C51,
C56-C57

VJ0402Y104JXJAT

Vishay

(1)

0.1

m

F, ceramic capacitor, size 0402

43

C43-C45, C55

VJ0603Y105JXJAT

Vishay

(1)

1.0

m

F, ceramic capacitor, size 0603

4

C52-C54

VJ0402Y103JXJAT

Vishay

(1)

0.01

m

F, ceramic capacitor, size 0402

3

J3-J6, J32-J34

142-0711-821

Johnson

Components

(2)

SMA End Launch Receptacle connector

8

J7-J34

142-0711-201

Johnson

Components

(2

SMA Connector. Strait Jack Receptacle. Surface Mount.

28

L1-L4

IMC0805RK122J01

Vishay

(1)

1.2

m

H Ferrite bead inductor

4

D1

67-1640-1-ND

Digikey

(3)

Green LED

1

D2

67-1636-1-ND

Digikey

(3)

Red LED

1

Q1-Q3

MMBT3904WT1

ON Semi

(4)

General purpose NPN transistor

3

C37

CRCW040200R0F

Vishay

(1)

0

W

 resistor, size 0402

1

R1-R2, R15,
R17, R19, R27,
R29, R72

CRCW04021270F

Vishay

(1)

127

W

, 1% resistor, size 0402

8

R3-R4, R16,
R18, R20, R28,
R30-R31

CRCW040282R5F

Vishay

(1)

82.5

W

 resistor, size 0402

8

R9, R11

CRCW04021002F

Vishay

(1)

1.2k

W

, 5% resistor, size 0402

2

R10

CRCW04021002F

Vishay

(1)

390

W

, 5% resistor, size 0402

5

R12-R14, R32,
R47-R48

CRCW04021820F

Vishay

(1)

182

W

, 1% resistor, size 0402

6

R33-R46

CRCW04025111F

Vishay

(1)

5.11k

W

, 5% resistor, size 0402

14

R49-R53

CRCW04021002F

Vishay

(1)

10k

W

, 5% resistor, size 0402

5

SW1-SW2

TDA08H0SB1

C&K

(5)

DIP Switch, SMT

2

TP3

5010K-ND

Digikey

(3)

PC Test point Multi-purpose, Red

1

TP4

5011K-ND

Digikey

(3)

PC Test point Multi-purpose, Black

1

U1

SY87725L

Micrel

(7)

2.5Gbps GPON/APON ONU SERDES

1

U2

SY89322V

Micrel

(7)

Dual LVTTL-to-Differential LVPECL Translator

1

U3

SY89312V

Micrel

(7)

LVPECL ÷ 2 Clock Divider

1

U4

M210024BPN

MtronPTI

(6)

155.52MHz Clock Oscillator

1

PCB

SY87725_EB_R0

Micrel

(7)

Bare PCB

1

Notes:

1. 

Vishay: 

www.vishay.com

2. 

Johnson Components: 

www.johnsoncomponents.com

.

3. 

Digi-key: 

www.digikey.com

4. 

On-Semi: 

www.on-semi.com

5. 

C&K: 

www.vishay.com

6. 

MtronPTI: 

www.mtronpti.com

7. 

Micrel, Inc.:  

www.micrel.com

.

Summary of Contents for SY87725L

Page 1: ...ation board is optimized to interface directly to 50 test equipment since the evaluation board is configured with AC coupled inputs and AC coupled outputs All datasheets and support documentation can...

Page 2: ...nnect the VCC terminal to the positive side of a DC power supply 2 For a LVPECL input signal set VT to VCC 2 0V 3 Signal Generator Using a differential signal source set the amplitude of each side of...

Page 3: ...Micrel Inc SY87725L Evaluation Board July 2008 3 M9999 071108 B hbwhelp micrel com or 408 955 1690 Evaluation Board Schematic...

Page 4: ...not used in that mode The diagram to the left of the table shows the actual dip switch settings as they would appear on the evaluation board The dip switches are configured with a pull up resistor on...

Page 5: ...e connections to SIN and SOUT as well as the power supply connections to the evaluation board The SOUT output can be monitored with a scope or a serial BERT Figure 1 Switch Settings for Remote Loopbac...

Page 6: ...clock coming out of SOUT will be synchronous with the RefClk source Figure 2 Switch Settings for Remote Loopback Recovered Clock Switch Settings Function RCV_FSEL0 1 11 Sets receive CDR frequency to...

Page 7: ...CDR operation can be verified with a serial BERT Figure 3 Switch Settings for Remote Loopback Recovered Data Switch Settings Function RCV_FSEL0 1 11 Sets receive CDR frequency to 2 48832Gbps For othe...

Page 8: ...Data In SIN For example if REFCLK is 155 52MHz then SIN must be at 155 52Mbps The 4 bit parallel data at the output of DOUT0 3 can be verified with a parallel BERT Figure 4 Switch Settings for CDR Byp...

Page 9: ...3 outputs The CLKIN is multiplied by 4 up to the serial rate by the synthesizer clock multiplier This allows a parallel BERT to be used to verify the Mux and DeMux operation independent of the CDR Fig...

Page 10: ...Switch Settings Function RCV_DDRSEL 0 Sets Clkout at parallel data rate RCV_CTRL0 1 11 Selects the normal receive data path RCV_FSEL0 1 11 Sets receive CDR frequency to 2 48832Gbps For other frequenc...

Page 11: ...0F Vishay 1 0W resistor size 0402 1 R1 R2 R15 R17 R19 R27 R29 R72 CRCW04021270F Vishay 1 127W 1 resistor size 0402 8 R3 R4 R16 R18 R20 R28 R30 R31 CRCW040282R5F Vishay 1 82 5W resistor size 0402 8 R9...

Page 12: ...Micrel Inc SY87725L Evaluation Board July 2008 12 M9999 071108 B hbwhelp micrel com or 408 955 1690 APPENDIX TEST FLOW DIAGRAM FOR SY87725L EVALUATION BOARD...

Page 13: ...Micrel Inc SY87725L Evaluation Board July 2008 13 M9999 071108 B hbwhelp micrel com or 408 955 1690 APPENDIX TEST FLOW DIAGRAM FOR SY87725L CONTINUED...

Page 14: ...is data sheet is believed to be accurate and reliable However no responsibility is assumed by Micrel for its use Micrel reserves the right to change circuitry and specifications at any time without no...

Reviews: