Samsung SPWB4339S User Manual

User manual of SPW-B4339S

1. Introduction

SPW-B4339S is a Wi-Fi / Bluetooth Combo module compliant with IEEE802.11a/b/g/n/ac

MAC/baseband/radio and Bluetooth 4.1 optimized for low-power applications.

The core chipset is from Broadcom, part number BCM4339

2. Hardware Architecture:

2.1 Main

Chipset Information

Item Vendor Part

IEEE802.11a/b/g/n/ac

mac/baseband/radio

Bluetooth 4.1

2.2 Circuit

Block Diagram

The major internal and external block diagram of

Number

Broadcom BCM4339

SPW-B4339S is illustrated in Figure 1-1.

X-tal

Figure 1-1 SPW-B4339S block diagram and System Interface

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3. Operational Description

SPW-B4339S is the 802.11a/b/g/n /ac +Bluetooth 4.1 COMBO Module that acts as a communication

controller for users of a wireless device to connect to Printer

- Features
>IEEE 802.11ac compliant.

>Dual-band 2.4GHz /5 GHz

>Single-stream spatial multiplexing up to 433.3Mbps data rate
>Support 20,40,80MHz channel with optional SGI(256QAM modulation)

>On-chip power amplifiers and low–noise amplifiers for both bands.

>Complies with Bluetooth Core Specification Version 4.0
>Bluetooth Class 1 or 2 transmitter operation.

>Adaptive frequency hopping (AFH) for reducing radio frequency interference

- Time base of the RF frequency

For IF and RF frequency, a crystal(37.4MHz) is a clock reference.

- Synthesizer

Synthesizer inside Transceiver. Internal voltage controlled oscillator (VCO) provides the desired LO

signal base on the phase-locked loop (PLL) with a relatively wide tuning range for this application.
Internal fractional nPLL allows support for a wide range of reference clock frequencies

- WIFI Transmission

Baseband data is modulated and upconverted to the 2.4GHz ISM and 5-GHz U-NII bands,respectively.

Linear on chip power amplifier are included, which are capable of delivering high output powers while

Meeting IEEE802.11ac and IEEE802.a/b/g/n specifications without the need for external PAs.
When using the internal PAs, closed-loop output power control is completely integrated.

Base-band Processing (BBP) IC has DSSS (BPSK/QPSK/CCK) and OFDM

(BPSK/QPSK/16QAM/64QAM/25QAM) modulation function, it provides transmission data rate are 1, 2,

5.5, 11Mbps on DSSS and 6, 12, 18, 24, 36, 48, 54 Mbps on OFDM. Digital data signal will be converted

to analog (TX IQ) signals through DAC in BBP IC, TX IQ pass through to low pass filter. TX I/Q signal

use direct conversion (zero-IF) architecture converter to generate carrier frequency signal. Transceiver
IC and internal PA magnify output power.

- WIFI Receiver

The BCM43569 has a wide dynamic range, direct conversion receiver that employs high-order on-chip

channel filtering to ensure reliable operation in the noisy 2.4GHz ISM band or the entire 5GHz U-NII band

.Control signals are available that can support the use of optional LNAs for each band,which can increase
the receive sensitivity by several decibels.

Reverse direction isolation of LNA inside Transceiver IC suppresses unwanted radiation. Then RF

signal will be directly down to IF signal (RX IQ) and high frequency spurious emissions are suppressed by
LPF. At last RX IQ signal will be demodulated digital data.

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