The FM module with USB function of Vire Silicon.Co Ltd is an excellent
miniature FM module with USB input and digital display for functions.
It is available as assembled board with remote.
The VTF-108 FM –USB Module is
available as ready made assembled board. Its output can be connected to power
amplifier or into the amplifier of VCD player, Car stereo etc. The module has
the following important features:
Brand Name: VIRE
- FM Channels 87.5 – 108 MHz
- Song number display 18888
- Song selection mode
- Auto channel scan and save provision
- Digital volume level display
- Forward and backward selection
- Volume Up /down buttons
The circuit board is available as kits with connecting wire
The circuit requires 5 Volt regulated power supply (or) 5 Volt SMPS power supply.
5 Volt regulated power supply Pin Diagram
Connections
On the PCB, there are markings for wire connections and wire sets are provided along with the kit. The markings on the back of the PCB indicates:
On the PCB, there are markings for wire connections and wire sets are provided along with the kit. The markings on the back of the PCB indicates:
Output to Amplifier
L – Left channel
G – Ground
R – Right channel
Volume control
Use a 10 K Lin dual volume control between the output lines (L and R) of the module and the amplifier. Set minimum volume (2 to 4) in the module using remote and adjust 10 K pot to get clear sound from the speaker. Then increase the volume using remote to the required level. The module can give 1 to 50 range volume.
Antenna
Antenna is necessary if the signal strength is weak .Connect 30 cm plastic wire to the point ANT on the PCB
5 Volt regulated power supply is necessary for the circuit. Make a regulated power supply with IC 7805 with 1000 uF filter capacitor. If the power supply is not well regulated or with ripples, performance of the circuit will be poor.
L – Left channel
G – Ground
R – Right channel
Volume control
Use a 10 K Lin dual volume control between the output lines (L and R) of the module and the amplifier. Set minimum volume (2 to 4) in the module using remote and adjust 10 K pot to get clear sound from the speaker. Then increase the volume using remote to the required level. The module can give 1 to 50 range volume.
Antenna
Antenna is necessary if the signal strength is weak .Connect 30 cm plastic wire to the point ANT on the PCB
5 Volt regulated power supply is necessary for the circuit. Make a regulated power supply with IC 7805 with 1000 uF filter capacitor. If the power supply is not well regulated or with ripples, performance of the circuit will be poor.
Remote less
operation
On the PCB, connections V+, M,V-, PP etc are given to connect membrane switches for manual operation.
On the PCB, connections V+, M,V-, PP etc are given to connect membrane switches for manual operation.
Technical Data
- Support : FM / USB / TF / AUX
- FM function : 87.5 to 108MHz frequency range
- Song number display 18888
- Accessory : remote
- Power supply : 5V
- Usage : home theatre, portable audio player, car audio...
- Screen : LED display
- Speacial feature : Resume
- S/N : 80(dB)
- Auto Radio Station Search Operation.
- USB / SD Volume Up V=50
- USB / SD Volume Down V=00
- FM / AUX LINE Volume Up V=30
- FM / AUX LINE Volume Down V=00
