PR

EL

IM

INA

RY

EVB71121

300 to 930MHz Receiver

Evaluation Board Description

39012 71121 01

Page 13 of 18

EVB Description

Rev. 003

Jan/08

3.3

Component List for Antenna Space Diversity

Below table is for all application circuits shown in Figures 3.1 and 3.2

Part

Size

Value @

315 MHz

Value @

433.92 MHz

Value @

868.3 MHz

Value @

915 MHz

Tol.

Description

C3

0603

100 pF

100 pF

100 pF

100 pF

±5%

LNA input filtering capacitor

C4

0603

4.7 pF

3.9 pF

2.2 pF

1.5 pF

±5%

LNA output tank capacitor

C5

0603

100 pF

100 pF

100 pF

100 pF

±5%

MIX1 positive input matching capacitor

C6

0603

100 pF

100 pF

100 pF

100 pF

±5%

MIX1 negative input matching capacitor

C7

0603

NIP

NIP

3.9 pF

NIP

±5%

matching capacitor

C8

0603

NIP

NIP

1.0 pF

NIP

±5%

matching capacitor

CB0

0805

33 nF

33 nF

33 nF

33 nF

±10% decoupling capacitor,

CB1

0603

330 pF

330 pF

330 pF

330 pF

±10% decoupling capacitor,

CB2

0603

330 pF

330 pF

330 pF

330 pF

±10% decoupling capacitor,

CB3

0603

330 pF

330 pF

330 pF

330 pF

±10% decoupling capacitor,

CF1

0603

680 pF

680 pF

680 pF

680 pF

±10%

data low-pass filter capacitor,

for data rate of 4 kbps NRZ

CF2

0603

330 pF

330 pF

330 pF

330 pF

±10%

data low-pass filter capacitor,

for data rate of 4 kbps NRZ

value according to the date rate

CF3

0603

connected to ground if noise filter not used

±10% optional capacitance for noise filter

CP1

0603

33 nF

33 nF

33 nF

33 nF

±10%

PKDET positive filtering capacitor,

for data rate of 4 kbps NRZ

CP2

0603

33 nF

33 nF F

33 nF

33 nF

±10%

PKDET negative filtering capacitor,

for data rate of 4 kbps NRZ

CRS

0603

1 nF

1 nF

1 nF

1 nF

±10%

RSSI output low pass capacitor,

for data rate of 4 kbps NRZ

CRO

0603

1 nF

1 nF

1 nF

1 nF

±5%

optional capacitor,

to couple external RO signal

100 nF

100 nF

100 nF

100 nF

CSL

0603

for averaging detection mode only

±10%

data slicer capacitor,

for data rate of 4 kbps NRZ

CX

0603

27 pF

27 pF

27 pF

27 pF

±5%

crystal series capacitor

L1

0603

56 nH

27 nH

0

Ω

0

Ω

±5%

matching inductor

L2

0603

27 nH

15 nH

3.9 nH

3.9 nH

±5%

LNA output tank inductor

L3

0603

0

Ω

68 nH

22 nH

0

Ω

±5%

matching inductor

L4

0603

56 nH

82 nH

22 nH

0

Ω

±5%

matching inductor

RCL

0603

3.3 k

Ω

3.3 k

Ω

3.3 k

Ω

3.3 k

Ω

±5%

optional CLK output resistor,

to clock output signal generated

SAW

FIL

SMD

3x3

SAFDC315M

SM0T00

(315 MHz)

SAFCC433M

BL0X00

(433.92 MHz)

SAFCC868M

SL0X00

(868.3 MHz)

SAFCC915M

AL0N00

(915 MHz)

low-loss SAW filter from Murata

or equivalent part

17.60000

MHz

24.206667

MHz

24.169444

MHz

25.46667

MHz

XTAL

SMD

5x3.2

±20ppm cal., ±30ppm temp.

fundamental-mode crystal

Note:

NIP – not in place, may be used optionally