Cellular Network Infrastructure » Radio Access Network » OsmoBSC

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h1. HSL Femtocell Hardware

*NOTE: All information on this website is gathered on our own, without any cooperation of the manufacturer.  There is no guarantee of correctness.  There is no relationship between HSL and the [[OpenBSC]] project developers!

h2. Overview

The HSL femtocell hardware consists of two boards: A digital board with the ARM, DSP and FPGA,

as well as the radio board, containing the ADC/DAC/oscillator/mixer/filter/duplexer.

Both boards are interconnected using a small adapter board.  This adapter board also contains

the Ethernet jack (including magnetics).

h2. Digital Board

The digital board contains a placement option for a GPS module

[[Image(hsl_femto_digital_pcb.jpg)]]

h3. Main Processor

* TI [[DaVinci]] ARM+DSP (TMS320DM6443A)

** http://focus.ti.com/docs/prod/folders/print/tms320dm6443.html

** http://focus.ti.com/lit/ds/sprs282g/sprs282g.pdf

h3. FPGA

* Xilinx Spartan-3A DSP FPGA (XC3SD1800A)

** http://www.xilinx.com/onlinestore/silicon/online_store_s3a.htm

** http://www.xilinx.com/support/documentation/data_sheets/ds610.pdf

h3. Power Management

* TI TPS65023 6-channel PMIC (TPS65023)

** http://focus.ti.com/docs/prod/folders/print/tps65023.html

** http://www.ti.com/lit/gpn/tps65023

* TI 3-6V 3A synchronous step down SWIFT converter TPS54310

** http://focus.ti.com/docs/prod/folders/print/tps54310.html

** http://www.ti.com/lit/gpn/tps54310

h3. Ethernet MAC

* Realtek Ethernet MAC (RTL8201BL)

** http://realtek.info/pdf/rtl8201bl.pdf

h3. Memory

* 2x Micron DDR2, 512Mbit, 0HF12 D9JLR C26V (MT47H32M16HR-3:F)

*** 84pin FBGA package, 1.8V

*** http://www.micron.com/get-document/?documentId=455&file=512MbDDR2.pdf

* ST Micro 1Gbit NAND Flash NAND01GW3B2CZA6

** http://pdf1.alldatasheet.com/datasheet-pdf/view/131765/STMICROELECTRONICS/NAND01GW3B.html

h3. Miscellaneous

* 2x TI Voltage translation for the bus (sn74avcb164245)

** http://focus.ti.com/lit/ds/symlink/sn74avcb164245.pdf

h2. RF board

So far we have only documented those parts that are not under the massive shielding cover.

The RF board contains a placement option for an OCXO.

[[Image(hsl_femto_radio_pcb.jpg)]]

h3. ADC

* TI dual 12bit 65Ms/s ADC (ADS5232)

** http://focus.ti.com/docs/prod/folders/print/ads5232.html

** http://www.ti.com/lit/gpn/ads5232

h3. DAC

* TI dual 14bit 275 Ms/s DAC (DAC5672)

** http://focus.ti.com/docs/prod/folders/print/dac5672.html

** http://www.ti.com/lit/gpn/dac5672

h3. Rx Mixer

* TRF3710 I/Q demodulator

** http://focus.ti.com/docs/prod/folders/print/trf3710.html

** http://www.ti.com/lit/gpn/trf3710

h3. Clocking

* TI N-PLL / VCO (TRF3761)

** http://focus.ti.com/docs/prod/folders/print/trf3761-a.html

** http://www.ti.com/lit/gpn/trf3761-a

* TI Clock Synchronizer (CDCM7005)

** http://focus.ti.com/docs/prod/folders/print/cdcm7005.html

** http://www.ti.com/lit/gpn/cdcm7005

h3. Miscellaneous

2x TI 16bit buffers/drivers (sn54? LVC16244)

        http://focus.ti.com/docs/prod/folders/print/sn54lvth16244a.html

        http://www.ti.com/lit/gpn/sn54lvth16244a

h3. RF Power Amplififer

* RFMD [[GaAs]] HBT Linear PA, 17dB gain

** https://estore.rfmd.com/RFMD_Onlinestore/Products/RFMD+Parts/PID-P_RFPA3809.aspx

** http://www.rfmd.com/CS/Documents/RFPA3809DS.pdf

h3. Duplexer / Circulator

* ACCUTE 100610 Duplex Filter SRP1747F1842N10N75FAI

h3. Receive filter

* ACCUTE 100610 Rx Band Filter SRP1747N10N75FV