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BH1414K
The BH1414K is a PQFP44 consumer circuit ideal for various applications
BH1414K
The BH1414K is a PQFP44 consumer circuit ideal for various applications
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Service & Packaging
Service & Packaging
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BH1414K DataSheet
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Details
The BH1414K is a FM stereo transmitter IC that is commonly used in applications like wireless microphones and FM broadcast systems. It operates in the frequency range of 76 MHz to 110 MHz and has a channel spacing of 200 kHz. The IC is capable of generating a RF output power of up to 15 dBm and has low harmonic distortion and cross modulation.The BH1414K features a PLL synthesizer circuit that allows for precise frequency tuning, and it also has built-in pre-emphasis and limiter circuits to improve audio quality. The IC is designed to operate with a single 3V to 5V power supply and has a low power consumption of around 30mA.In terms of connectivity, the BH1414K has built-in audio input and RF output pins for easy integration into a variety of audio systems. The IC also features a mute function that can be controlled externally to switch off the audio output when needed.
Key Features
- High-quality FM stereo transmitter IC
- Operating frequency range of 76MHz to 108MHz
- Integrated PLL synthesizer with 40-110MHz operation
- Low operating voltage of 2.7V to 3.3V
- Adjustable output power up to 100mW
- High performance and low distortion
- Ideal for portable FM transmitter applications
Application
- Wireless microphone systems
- Remote control systems
- Low-power FM transmitters
- Telemetry systems
- Industrial control systems
- Wireless audio systems
- Walkie-talkies
- Wireless data transmission systems
- Hands-free communication devices
- Radio frequency (RF) communication systems
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | Yes | Rohs Code | Yes |
| Part Life Cycle Code | Obsolete | Part Package Code | QFP |
| Pin Count ! | 44 | Reach Compliance Code | compliant |
| HTS Code ! | 8542.39.00.01 | Consumer IC Type | CONSUMER CIRCUIT |
| JESD-30 Code | S-PQFP-G44 | JESD-609 Code | e2 |
| Length | 10 mm | Number of Functions | 1 |
| Number of Terminals | 44 | Operating Temperature-Max | 85 °C |
| Operating Temperature-Min | -40 °C | Package Body Material | PLASTIC/EPOXY |
| Package Code | QFP | Package Shape | SQUARE |
| Package Style | FLATPACK | Qualification Status ! | Not Qualified |
| Seated Height-Max | 2.25 mm | Supply Current-Max | 29 mA |
| Supply Voltage-Max (Vsup) | 5.5 V | Supply Voltage-Min (Vsup) | 4.5 V |
| Surface Mount ! | YES | Temperature Grade ! | INDUSTRIAL |
| Terminal Finish | TIN COPPER | Terminal Form ! | GULL WING |
| Terminal Pitch ! | 0.8 mm | Terminal Position | QUAD |
| Width | 10 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is BH1414K?
The BH1414K is a stereo FM transmitter IC designed for radio broadcast applications. It is commonly used in creating low-power FM transmitters for music or voice broadcasts in a localized area, such as in-car entertainment systems, wireless speakers, and hobbyist radio projects.
How Does BH1414K Work?
The BH1414K works by modulating audio signals onto an FM carrier wave, which can then be transmitted wirelessly and received by standard FM radio receivers. It features built-in pre-emphasis, stereo modulation, and other signal processing capabilities to maintain high-quality audio transmission.
How Many Pins does BH1414K have and What are the Functions of the Pinout Configuration?
The BH1414K is housed in a 20-pin SSOP (Shrink Small Outline Package) package. The pinout configuration includes:
- VCC: Power supply pin.
- VCONT: Pin for controlling the volume of the transmitted audio.
- SDATA, SCLK, LRC, MCLK: Serial interface pins for data and clock signals.
- MONOIN, LIN, RIN: Audio input pins for mono and stereo signals.
- GND: Ground pin.
- FREQ, MUTE, RDS, SWMODE: Control pins for frequency selection, muting, RDS (Radio Data System) operation, and stereo/mono mode selection.
- RFOUT: RF output pin for connection to an antenna.
What are the Pros and Cons of BH1414K?
Pros:
- Integrated Functionality: Provides stereo FM modulation and signal processing in a single IC.
- Low-Power Operation: Suitable for battery-powered and portable transmitter applications.
- Compact Package: The SSOP package offers space-efficient integration into circuit designs.
- Flexible Configuration: Includes control pins for various audio and transmission settings.
Cons:
- Regulatory Compliance: Use of FM transmitters may be subject to regulatory restrictions in certain regions.
- External Components: May require additional external components such as inductors and capacitors for proper antenna matching and filtering.
- Range Limitation: Transmitting range may be limited to short distances depending on the antenna and environmental factors.
Are There Any Equivalents/Alternatives to BH1414K for Recommendation?
Alternatives to the BH1414K include the SE800 from Sirenza Microdevices and the RDA5807M from RDA Microelectronics.
