F2M03MLA-S03 Free2Move, F2M03MLA-S03 Datasheet - Page 30

• Manufacturer Part Number: F2M03MLA-S03
• Description: MOD BLUETOOTH V2.0 W/ANTENNA
• Manufacturer: Free2Move

Specifications of F2M03MLA-S03

• Frequency: 2.4GHz
• Data Rate - Maximum: 3Mbps
• Modulation Or Protocol: Bluetooth v2.0+EDR, Class 1, 2 & 3
• Applications: Bluetooth v2.0
• Power - Output: 7.9dBm ~ 8.6dBm
• Sensitivity: -85dBm
• Voltage - Supply: 3.1 V ~ 3.6 V
• Current - Receiving: 45mA
• Current - Transmitting: 75mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: On-Board, Chip
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: 647-1015-2; F2M03MLA-S03-R1B

Rev: c
Low power Multimedia Bluetooth™ Module with antenna F2M03MLA
Datasheet
6.2.14 Output Stage
The output digital circuitry converts the signal from 16-bit per sample, linear PCM of variable sampling
frequency to an 8 MBits/sec bit stream, which is fed into the analogue output circuitry.
The output circuit comprises a digital to analogue converter with gain setting and output amplifier.
Its class-AB output-stage is capable of driving a signal on both channels of up to 2V pk-pk- differential into a
load of 32Ω and 500pF with a typical THD+N of -74dBc. The output is available as a differential signal
between AUDIO_OUT_N_LEFT and AUDIO_OUT_P_LEFT for the left channel as shown in Figure 8.45;
and between
AUDIO_OUT_N_RIGHT and AUDIO_OUT_P_RIGHT for the right channel. The output is
capable of driving a speaker directly if its impedance is at least 16Ω if only one channel is connected or an
external regulator is used.
Speaker output (Left channel shown)
The gain of the output stage is controlled by a 3-bit programmable resistive divider, which sets the gain in
steps of approximately 3dB.
The single bit stream from the digital circuitry is low pass filtered by a second order bi-quad filter with a pole
at 20kHz. The signal is then amplified in the fully differential output stage, which has a gain bandwidth of
typically 1MHz. It uses its high open loop gain in the closed loop application circuit to achieve low distortion
while operating with low standing current.
© 2007 Free2move AB
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