Datasheet > EVB71101

EVB71101

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
迈来芯 - MELEXIS		/
页数	文件大小	规格书
14页	613K
描述
315/433MHz Receiver Evaluation Board Description

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EVB71101 数据手册

EVB71101

315/433MHz Receiver

Evaluation Board Description

2.1.2

Part

Board Component Values for FSK

Value

Size

Tolerance

Description

@ 315 MHz

@ 433.92 MHz

crystal series capacitor

0805

0603

0805

27 pF

1 nF

27 pF

1 nF

±5%

±10%

±5%

loop filter capacitor

LNA output tank capacitor

MIX1 input matching capacitor

IFA feedback capacitor

DEMOD phase-shift capacitor

6.8 pF

2.7 pF

33 nF

1 nF

4.7 pF

2.2 pF

33 nF

1 nF

±5%

±10%

±5%

C10

C11

C12

1 nF

10 pF

demodulator output low-pass capacitor,

this value for data rates < 20 kbps NRZ,

for higher data rates decrease the value

C15

C16

C17

0805

100 pF

1.5 nF

10 nF

100 pF

1.5 nF

10 nF

±5%

±10%

RSSI output low-pass capacitor

data slicer capacitor,

this value for data rates > 0.8 kbps NRZ,

for lower data rates increase the value

CB1 to CB5

CB7 to CB8

de-coupling capacitor

0603

0805

0603

330 pF

33 nF

330 pF

33 nF

±10%

±5%

de-coupling capacitor

CB6

optional capacitor,

to couple external RO signal

C_RO

330 pF

loop filter resistor

0805

0603

0805

0603

10 kΩ

330 Ω

330 kΩ

220 kΩ

470 Ω

0 Ω

10 kΩ

330 Ω

330 kΩ

220 kΩ

470 Ω

68 nH

±5%

optional CERFIL output matching resistor

data slicer resistor

loading resistor

MIX1 bias resistor

RL1

RL2

MIX1 bias resistor

SAW filter matching inductor

from Würth-Elektronik (WE-KI series),

or equivalent part

0603

33 nH

82 nH

15 nH

±5%

LNA output tank inductor from Würth-Elek-

tronik (WE-KI series), or equivalent part

22 nH

fundamental-mode crystal from

Telcona/Horizon (HEX22 series)

or equivalent part

SMD

6x3.5

20.35625 MHz

@ RF = 315 MHz

26.45125 MHz

@ RF = 433.92 MHz

±25ppm cal.

±30ppm temp.

XTAL

fundamental-mode crystal, C_load= 10 pF

to 15 pF, C_{0, max}= 7 pF, R_{1, max}= 50 Ωl

HC49

SMD

SAFCC433MBL0X00

(f₀= 433.92 MHz)

low-loss SAW filter from Murata,

or equivalent part

_3dB= 840 kHz

SMD

3x3

SAWFIL

SAFDC315MSM0T00

(f₀= 315.00 MHz)

B_3dB= 5MHz

ceramic filter from Murata,

or equivalent part

SMD

3.45x3.1

CERFIL

CERDIS

SFECF10M7HA00

CDSCB10M7GA135

B_3dB= 180 kHz

SMD

4.5x2

ceramic discriminator from Murata,

or equivalent part

39012 71101 01

Rev. 011

Page 7 of 14

EVB Description

June/07

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