ROHM series FM Transmitter chips | SZ123

SZ123

FM Transmitter Lovers

ROHM series FM Transmitter chips

By SZ123 • 2010-04-11 • Category: Radio-BaseRSS 2.0 Trackback

Features

  • ROHM's wireless audio link ICs (FM transmitter) enable the smallest FM stereo broadcasts
  • Compatible with billions of FM radio receivers around the world
  • Removes noise contained in digital audio sources, resulting in hi-fi sound
  • Built-in high-performance digital transmitter ensures stable transmission of broadcast waves
  • A PLL circuit, stereo modulator, FM transmitter, and the like are all consolidated into a single package
  • Conforms to the global standard GE Zenith (Pilot Tone) system

 

Hi-fi stereo sound that rivals that of a conventional broadcast station

Specialized, high-performance circuit designs make it possible to deliver high-fidelity sound equivalent to a radio station.

Application Examples

TVs, DVD players, Set top boxes, Portable music players, Wireless headphones, Wireless speakers, PCs, PC mice, PC peripheral equipment, Cordless phones, Coffee makers, Microwaves, Ovens, Mobile phones, Digital cameras, Gaming consoles, Battery chargers, Calculators, Personal data assistants, Clocks/watches, Illumination equipment, Student desks, Dressers, Bathtubs, Vending machines, ATMs, On-board music systems, Ticket vending machines, and more

Specifications

Part No. BH1425KN
BH1425GWL
BH1414K BH1415F
BH1415FV
BH1418FV
BH1418KN
BH1416F BH1417F
BH1417FV
Power Supply Voltage 2.7V to 4.0V 4.5V to 5.5V 4.0V to 6.0V 2.7V to 4.0V 4.0V to 6.0V
BUS Interface Voltage 1.7V to 4.0V Same as the power supply voltage Same as the power supply voltage
Operating Temperature Range -20ºC to +85ºC -40ºC to +85ºC -40ºC to +85ºC
Package VQFN28
(BH1425KN)
UCSP50L3
( BH1425GWL)
QFP44 SOP22
(BH1415F)
SSOP-B24
( BH1415FV)

SSOP-B24
( BH1418FV)
VQFN28
(BH1418KN)

SOP22 SOP22
(BH1417F)
SSOP-B24
( BH1417FV)
Transmission Frequencies 76MHz
to 108MHz
step 100kHz
76MHz
to 108MHz
step 100kHz
76.8MHz
to 78.0MHz
88.0MHz
to 89.2MHz
step 200kHz
77.7MHz
to 88.9MHz
106.7MHz
to 107.9MHz
step 200kHz
Transmission Output Level -12dBm
to 0dBm
-7dBm -7dBm
System Clock Frequencies 12M,13M,16M,
19M,19.2M,
19.8M,24M,
26MHzOther
7.6MHz 7.6MHz
Audio input attenuator Yes Yes - -
Pre-emphasis Yes Yes Yes
Audio limiter Can be turned ON/OFF Can be turned ON/OFF ON only ON only
Digital audio source input compatible filters Yes Yes
-
-
Monaural operation Yes Yes -
Audio mute Yes Yes -
FM stereo modulator Yes Yes Yes
FM transmitter Yes Yes Yes
Transmission frequency control system I2C BUS* Three-line serial BUS Parallel control
Transmission output level control Yes - -
Characteristics adjustment function via BUS interface
Yes
-
-
Zero current power-down mode
Yes
-
-
*I2C BUS is a registered trademark of Philips.
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