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CR2S01

This CIRAN2 sled is a cost optimised RAN design based on a LimeSDR Mini 2.0 and UP 4000 SBC.

Since LimeSDR Mini 2.0 is a single-input single-output (SISO) software-defined radio, MIMO use is not supported.

Theory of operation

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The LimeSDR Mini 2.0 is plugged into a USB 3.0 port on the UP 4000 SBC.

A 10 MHz external clock reference is provided via the CSAD10 board, with an LTE Band 3 Low Power Duplexer connected to the SDR Tx and Rx ports.

Bill of materials

CR2S01 BOM

Component

Description

Manufacturer

Man. Part

Distributor

Dist. Part

M1

UP 4000 Atom x7-E3950

Aeeon

UP-APL03X7F-A10-0464

Mouser

409-UPAPL03X7FA10464

M2

LimeSDR Mini 2.0

Lime Microsystems

LimeSDR Mini 2.0

Mouser

116-CS-LIME-26

M3

LTE Band 3 Low Power Duplexer

LibreCellular

B3LPD

LTE Band 3 Low Power Duplexer

J1

5.5/2.1mm DC coaxial connector

RS Pro

487-858

RS Components

487-858

J2

RF Adapter SMA plug to U.FL socket

RS Pro

738-5939

RS Components

738-5939

J3

6 position female box header

Harwin

M22-3020300

RS Components

681-3357

J4

3 position female box header

Harwin

M20-1060300

RS Components

681-2821

J5

SH Connector Housing, 10 way

JST

SHR-10V-S-B

RS Components

311-6552

J6

SH Connector Housing, 4 Way

JST

SHR-04V-S-B

RS Components

311-6524

CBL1

U.FL coaxial cable plug assembly, 60mm

Hirose

U.FL-2LP-088K1T-A-(60)

RS Components

136-0911

CBL2

250mm Female U.FL to Male SMA Coaxial Cable

RF Solutions

CBA-UFL-SMAM25

RS Components

125-8188

CBL3

U.FL coaxial cable plug assembly, 200mm

Hirose

U.FL-LP-068N1-A-(200)

RS Components

828-1901

CBL4

RJ45 to Straight Male RJ45 Ethernet Cable. 150mm

Roline

21.15.3950-100

RS Components

266-0792

Misc.

Female crimp terminals for Harwin M20 series

Harwin

M20-1180042

RS Components

681-2878

Misc.

Female crimp terminals for Harwin M22 series

Harwin

M22-3050046

RS Components

547-3245

Misc.

Female SH to Unterminated Crimped Wire, 300mm

JST

SH3-SS5-28300

RS Components

311-6669

Misc.

1.5mm2 tri-rated wire in red, white black

Misc.

1.5mm2 ferrules

Resources