UGWC621RSMA133 Unigen Corp, UGWC621RSMA133 Datasheet - Page 25

• Manufacturer Part Number: UGWC621RSMA133
• Description: MODULE NEMO BLUETOOTH RADIO
• Manufacturer: Unigen Corp

Specifications of UGWC621RSMA133

• Frequency: 2.4GHz ~ 2.48GHz
• Data Rate - Maximum: 3Mbps
• Modulation Or Protocol: BlueCore Serial (BCSP)
• Applications: General Purpose
• Power - Output: 7dbm
• Sensitivity: -89dBm
• Voltage - Supply: 3.3V
• Current - Receiving: 40mA
• Current - Transmitting: 45mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

NEMO Bluetooth Radio Module
Datasheet
Solutions for a Real Time World
Audio PCM and I2S Interfaces
The NEMO module has a Pulse Code Modulation (PCM) audio port and I2S interface. These
interfaces are intended to be used for quick transfer of synchronous audio date transmitted or
received over Bluetooth SCO audio links for voice applications such as headsets and hands free
kits. These signals can also vary in operation amplitude based on the +VBT_IO supply pin.
PCM is a standard method for digitizing audio (particularly voice) for transmission over digital
communications channels. The dedicated PCM port reduces overhead processing power for
battery powered devices. The PCM port bi-directional digital audio interface is routed directly into
the CSR radio baseband for fast encoding/decoding. The audio is not passed through the
UART/HCI layer. The digitized audio through the baseband is sent and received via Bluetooth
defined RF SCO links.
The PCM port can operate as a the PCM master generating an output clock of 128, 256, 512,
1536, and 2400kz. When configured as a PCM slave, NEMO can support a master input clock up
to 2400kHz. A variety of clock formats are supported including, Long Frame Sync, Short Frame
Sync, and GCI timing environments.
It supports 13-bit or 16-bit linear. 8-bit µ-law or A-law companded sample formats at 8ksamples/s.
These samples can be received and transmitting through any selection of the first 3 out of the 4
timing slots following BT_PCM_SYNC_P.
PCM Interface Master/Slave
When NEMO is configured as a PCM master, NEMO generates BT_PCM_CLK_P and BT_PCM_SYNC
signals
Figure 8: PCM Interface Master
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