FM Transmitters

Wireless Audio Link ICs

ROHM Image ROHM's breakthrough wireless IC series incorporates a stereo modulator, frequency synthesizer and high frequency FM transmitter in one IC.
ROHM's industry-first wireless IC series not only cuts board space by more than half, it opens up opportunities as unlimited as the designer's imagination. ROHM's innovative chip series enables portable electronic audio sources such as MP3 players, portable CD players, PDAs, video game players, cell phones, and laptop PCs to be connected to a more powerful audio system without cables or even line of sight technology.

Digi-Key Part Number Package Freqency Voltage Supply (Min-Max) Features
BH1415F-E2TR-ND 22-SOP 70MHz ~ 120MHz 4.00 V - 6.00 V FM Stereo Transmitter IC
BH1417F-E2TR-ND 22-SOP 87.7MHz ~ 88.9MHz
106.7MHz ~ 107.9MHz
4.00 V - 6.00 V FM Stereo Transmitter IC
BH1414K-E2TR-ND 44-QFP 75MHz ~ 110MHz 4.50 V - 6.50 V FM Stereo Transmitter IC
BH1418FV-E2TR-ND 24-SSOP 70MHz ~ 120MHz 2.70 V - 4.00 V FM Stereo Transmitter IC
BH1418KN-E2TR-ND 28-VQFN 70MHz ~ 120MHz 2.70 V - 4.00 V FM Stereo Transmitter IC
BH1425KN-E2TR-ND 28-VQFN 76MHz ~ 108MHz 2.70 V - 4.00 V FM Stereo Transmitter IC
BH1425GWL-E2TR-ND UCSP50L 76MHz ~ 108MHz 2.70 V - 4.00 V FM Stereo Transmitter IC
FEATURES
  Mounting apace ≤ 56mm2
  Adjust audio input level by built-in input volume via BUS
  Select pre-emphasis time constant via BUS
  High-end LPF for Digital Audio Source
  Adjust deviation control function via BUS
  Tx frequency: 76.0M ~ 108.0MHz, 100kHz step
  High-speed transmission frequency setup < 200msec
  Adjust Tx power control function via BUS
  Power down mode
  External clock frequency are 13M/16M/19.2M/19.8M/26MHz
  I2C BUS I/F
  Operating Voltage: 2.7V to 3.6V
  BUS I/F power voltage: 1.7V to 3.6V
  Smaller package: CSP 3.0mm x 3.0mm x 0.5mm
APPLICATIONS
  Wireless speakers
  Car entertainment systems
  Computer (sound board)
  MP3 players
  Video game players
  CD changers
  GPS Systems
  Cell phones & Fax machines

Feature Comparison