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Description : 300 to 930MHz Receiver Evaluation Board Description

General Description
The MLX71122 is a multi-channel RF receiver IC based on a double-conversion super-heterodyne architecture. It is designed to receive FSK and ASK modulated RF signals either in 8 predefined frequency channels or frequency programmable via a 3-wire serial programming interface (SPI).
The IC is designed for a variety of applications, for example in the European bands at 433MHz and 868MHz or for the use in North America or Asia, e.g. at 315MHz, 447MHz or 915MHz.

Features
❐ Programmable PLL synthesizer
❐ 8-channel preconfigured or fully programmable SPI mode
❐ Double super-heterodyne receiver architecture with 2nd mixer as image rejection mixer
❐ Reception of FSK, FM and ASK modulated signals
❐ Low shut-down and operating currents
❐ AGC – automatic gain control
❐ On-chip IF filter
❐ Fully integrated FSK/FM demodulator
❐ RSSI for level indication and ASK detection
❐ 2nd order low-pass data filter
❐ Positive and negative peak detectors
❐ Data slicer (with averaging or peak-detector adaptive threshold)
❐ 32-pin Quad Flat No-Lead Package (QFN)
❐ EVB programming software is available on Melexis web site

Application Examples
❐ General digital and analog RF receivers at 300 to 930MHz
❐ Tire pressure monitoring systems (TPMS)
❐ Remote keyless entry (RKE)
❐ Low power telemetry systems
❐ Alarm and security systems
❐ Active RFID tags
❐ Remote controls
❐ Garage door openers
❐ Home and building automation

Part Name(s) : NTE7200
NTE-Electronic
NTE Electronics
Description : Intergrated Circuit FM stereo Transmitter

Description:
The NTE7200 is a monolithic intergrated circuit in an 18-Lead DIP type package designed for use as a stereo transmitter. This device consists of a stereo modulator that creates stereo composite signals, an FM modulator that creates FM signals, and an RF amplifier. The stereo modulator develops composite signals made up of a MAIN (L+R) signal, a SUB (L-R) signal and a pilot (19kHz) signal using 38kHz crystal oscillators.
The FM modulator has carriers on the FM broadcast band (75 to 108MHz). The RF amplifier transmits the stereo encoded FM signals and is also a buffer for the FM modulator. The stereo transmitter is equipped with a constant voltage pin for a variable capacitor that is used to finly adjust the FM frequency.

Features:
• Low Operating Voltage Range (1.0V to 2.0V)
• Low Power Consumption (3mA Typ)
• Few External Components Required

Applications:
• FM stereo Transmitters
• Wireless Microphones

 

ST-Microelectronics
STMicroelectronics
Description : Single-chip FM/AM TUNER WITH stereo DECODER AND AUDIO PROCESSOR

DESCRIPTION
The TDA7514 is a device for car-radio applications that combines full RF front-end functions with advanced audio-processing capabilities.
As far as FM and AM functions are concerned, the TDA7514 features front-end processing, including the digital tuning PLL. IF processing with demodulation and variable-bandwidth IF filtering (ISS), stop station and quality detection functions, FM stereo decoding by means of a fully integrated adjustment-free dedicated PLL and, finally, AM and FM noise blanking (AM noise blanking comprises one IF NB as well as an audio NB).
The FM stereo decoder and the noise blanking functions are realised entirely without external components. The FM front-end circuit features an image-rejection mixer that allows the simplification of the external preselection filter, and a very low noise level that allows getting rid of the external preamplifier with no loss in sensitivity. A 6 bit on board ADC makes a digitised version of the Sme ter available to the µP via I2Cbus.
The audio processor section comprises input selectors for one stereo single-ended source, one stereo quasi-differential source and a mono differential source. Volume, loudness, tone (bass and treble), balance and fading controls are available with completely pop-free operation to drive four output channels. An additional input independently mixable on each of the four outputs is provided for chime. A soft mute function and an RDS mute function are included to handle source change as well as RDS AF search without abrupt changes in the audio level.
Most of the parameters in the front-end section are I2Cbus-driven and therefore under the control of the car-radio maker. The I2Cbus allows further more the user to realise the full electric alignment of all the external coils.

FEATURES
■ AM/FM WORLD TUNER FOR CAR-RADIO
■ INTEGRATED IMAGE REJECTION FM MIXER
■ INTEGRATED TUNING PLL
■ VARIABLE-BANDWITH FM IF FILTER (ISS)
■ FULLY INTEGRATED FM stereo DECODER
■ FULLY INTEGRATED FM/AM NOISE BLANKER
■ HIGHLY INTEGRATED AUDIO PROCESSOR

Description : 18-bit Low Power Asynchronous stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

GENERAL DESCRIPTION
STw5094A is a low power asynchronous stereo audio DAC device with headphones amplifiers for high quality MP3 and FM radio listening. The STw5094A includes also an high performance low power combined PCM Codec⁄ filter tailored to implement the audio front-end functions required by low voltage low power consumption digital cellular terminals with added MP3 and FM radio listening.

FEATURES
■ Complete stereo audio digital to analog
   converters and filters
   – 18-bit, 8 kHz to 48 kHz DAC with sample-rate
      conversion
   – Linear phase analog&digital filters
   – 16 Ω load stereo headphones drivers, 8 Ω
      load mono loudspeaker driver for group
      listening
stereo audio DAC features
   – Asynchronous sampling DAC: does not
      require oversampled clock and information
      on the audio data sampling frequency.
      Jitter tolerant
   – Multibit Σ∆ modulator with data weighted
      averaging DAC
   – 92 dB dynamic range, 0.01% THD over 16 Ω
      load performance
   – Support any sampling frequency in the range
      8 kHz to 48 kHz
   – DSP functions for bass-treble-volume
      controls, deemphasis filter and dynamic
      compression
   – Tones from tone generator can be injected in
      the audio paths
stereo headphones and loudspeaker/earpiece
   power amplifiers features and stereo input for
   FM radio features:
   – 20 kHz bandwidth stereo headphones
      outputs. Driving capability: 40 mW
      (typ. 0.1% T.H.D) over 16 Ωwith 40 dB range
      programmable gain
   – Balanced earpiece⁄ loudspeaker output.
      Driving capability: 300 mW (typ. 0.1% T.H.D)
      over 8 Ωwith 30dB range programmable gain
   – Analog stereo input for FM radio with 38 dB
      range programmable gain
■ Complete CODEC and filter system
   – 14-bit linear or 8-bit companded ADC and
      DAC
   – Transmit and receive digital band-pass filters
   – Active antialias and smoothing filters
   – 8 Ω load earpiece/loudspeaker driver,
      16 Ω load auxiliary driver
■ Voice CODEC features
   – Support 8 kHz or 16 kHz sampling rate
   – One microphone biasing output
   – Remote control function
   – Three switchable microphone amplifier
      inputs. 42.5 dB range programmable gain
   – Transient supression during power up and
      power down
   – Internal programmable sidetone
   – Internal ring, tone and dtmf generator
   – Programmable PWM buzzer driver (Continue ...)
  
APPLICATIONS
■ CDMA,GSM,DCS1800,PCS1900,JDC digital
   cellular telephones with MP3 and FM radio
   stereo listening functions
■ Portable devices with a stereo digital audio
   source and FM radio listening function

Part Name(s) : SI476X
Silabs
Silicon Laboratories
Description : High-Performance Automotive AM/FM Radio Receiver and HD Radio Tuner

Description
The Si476x radio receiver family employs 100% RF CMOS technology to bring outstanding receiver performance to the automotive infotainment industry, which demands high performance and quality.
The Si476x receiver family supports worldwide FM and AM radio reception. Additional variants support weather band, shortwave, longwave frequencies, and dual antenna FM phase diversity reception.

Features
- Worldwide FM band support (64–108 MHz)
- AM/FM HDR support
- Worldwide AM band support (520–1710 kHz)
- Advanced RDS/RBDS demodulator/decoder
- Digital FM MPX decoder
- Integrated FM active splitter
- Addresses companion AF/RDS data receiver
- Advanced AM/FM noise blankers
- Dynamic AM/FM channel bandwidth control
- Advanced FM hi-cut control
- Programmable FM stereo-mono blend
- Programmable AM/FM soft mute
- Full suite of signal metrics: RSSI, SNR, multi-path interference, frequency offset, adjacent channel strength, USN
- Analog and digital (I2S) audio outputs
- Digital (I2S) baseband AM/FM I/Q
- Analog FM MPX output
- Low-IF architecture
- Eliminates expensive 10.7 MHz IF ceramic filters
- On-chip AM/FM AGC with integrated resistor and varactor banks
- Eliminates external pin diode attenuators and varactors
- 1.5 to 5 V power supplies
- QFN 40, 6 x 6 x 0.85 mm
   - Pb-free/RoHS compliant
- AEC-Q100 qualified

Applications
- OEM automotive infotainment systems
- Aftermarket car radio systems
- OEM automotive PND docking system

Part Name(s) : BCM2049
Broadcom
Broadcom Corporation
Description : Single-chip BLUETOOTH® 2.1 + EDR WITH INTEGRATED FM TRANSCEIVER

OVERVIEW
The Broadcom® BCM2049 is a cost-effective solution for portable devices, such as mobile handsets and media players, that require Bluetooth and FM receiver/transmitter functionality. At the software layer, the BCM2049 is backward-compatible with Broadcom’s Bluetooth + FM device family, which includes the BCM20780 and BCM2048.

FEATURES
• Bluetooth
   • Bluetooth® 2.1 + EDR specification compliant
   • On-chip, integrated, Class 1 power amplifier
   • Typical receive sensitivity of –90 dBm
   • SmartAudio® technology, improving voice and music quality to Bluetooth headsets
   • Multiple simultaneous Advanced Audio Distribution Profile (A2DP) streams
   • Wideband speech support
   • Low current consumption in all Bluetooth modes
   • WLAN and WiMAX coexistence support
   • Supports high-speed UART (H4, H5), secure digital I/O (SDIO), and serial peripheral interface (SPI)
• General
   • Monolithic, 65 nm CMOS, single-die Host Controller Interface (HCI) and FM transceiver integration
   • PCB area requirement less than 40 mm2
   • Spurious-free simultaneous operation between Bluetooth and FM receiver/transmitter
   • ROM-based solution with flexible code patching and in-system debugging facility
   • Compatible with Broadcom’s Bluetooth + FM device family, which includes the BCM20780 and BCM2048.
   • On-chip low-dropout (LDO) regulators (support direct battery connection)
   • WLBGA and FPBGA packages available
• FM Transceiver
   • 65–108 MHz FM+RDS/RBDS band support for world coverage, including OIRT support for Eastern Europe
   • Supports external or internal antenna configurations
   • Host interface flexibility
      - Control: UART, SDIO, SPI, BSC (I2C-compatible)
      - Audio: Analog input/output and dual I2S ports
   • Superior FM receiver performance with –110 dBm typical sensitivity with a 26 dB SNR
   • Advanced FM channel search algorithms
   • High-power FM transmitter with programmable power control to meet regulatory requirements
   • SmartAudio technology for superior music quality during FM transmission
   • Low power FM receive recording with an on-chip MP3 encoder
   • Supports FM-over-Bluetooth (A2DP), through an on-chip SBC codec, while the host baseband processor is in Sleep mode

APPLICATIONS
• Mobile handsets and smartphone
• Personal digital assistant (PDA)
• Portable media players
• Portable navigation devices (GPS)
• Digital satellite radio receivers

Silabs
Silicon Laboratories
Description : HIGH-PERFORMANCE CONSUMER ELECTRONICS broadcast RADIO RECEIVER AND HD RADIO TUNER

Description
The Si4770/77-A20 broadcast receiver and HD Radio tuner (Si4777 only) employs an advanced, proven digital low-IF architecture to bring outstanding receiver performance to high-performance consumer electronics.

Features
Worldwide FM band support (64–108 MHz)
Worldwide AM band support (520–1710 kHz)
AM/FM HD Radio support (Si4777 only)
Comprehensive signal quality metrics: RSSI, SNR, multipath interference, frequency offset, adjacent channel RSSI, frequency deviation, and image RSSI
Advanced patented RDS soft decision decoder
Advanced, patented FM channel equalizer for multipath interference
Dynamic AM/FM channel bandwidth control
Programmable AM/FM soft mute
FM stereo-mono blend
FM hi-blend control
AM/FM hi-cut control
AM lo-cut filter
L/R analog and digital (I2S) audio outputs
Digital Low-IF architecture
Frequency synthesizer with fully integrated PLL-VCO
Fully integrated AM/FM front-end including high performance LNA, AGC with integrated resistor and capacitor banks, and RF and IF peak detectors
Integrated crystal oscillator
Digital (I2S) Zero-IF AM/FM I/Q outputs (Si4777 only)
1.2 to 5 V power supplies
QFN 40-pin, 6x6x0.85 mm
   Pb-free/RoHS compliant

 

Philips
Philips Electronics
Description : AM/FM stereo radio circuit

DESCRIPTION
The TEA5711 is a high performance Bimos IC for use in AM/FM stereo radios. All necessary functions are integrated: from AM and FM front-end to AM detector and FM stereo output stages.

FEATURES
• Wide supply voltage range: 1.8 or 2.1 to 12 V
• Low current consumption: 15 mA at AM, 16 mA at FM
• High selectivity with distributed IF gain
• LED driver for stereo indication
• High input sensitivity: 1.6 mV/m (AM), 2.0 µV (FM) for 26 dB S/N
• Good strong signal behaviour: 10 V/m at AM, 500 mV at FM
• Low output distortion: 0.8% at AM, 0.3% at FM
• Signal level output
• Soft mute
• Signal dependent stereo
• Designed for simple and reliable printed-circuit board layout
• High impedance MOSFET input on AM.

APPLICATIONS
• Portable AM/FM stereo radio
• Mini/midi receiver sets
• Personal headphone radio.

Part Name(s) : TEA5712 TEA5712T
Philips
Philips Electronics
Description : AM/FM stereo DTS radio circuit

DESCRIPTION
The TEA5712 is a high performance Bimos IC for use in digitally tuned AM/FM stereo radios. All necessary functions are integrated: from AM and FM front-end to AM detector and FM stereo output stages.

FEATURES
• Wide supply voltage range: 1.8 or 2.1 to 12 V
• Low current consumption: 16 mA at AM, 17 mA at FM
• High selectivity with distributed IF gain
• LED driver for stereo indication
• High input sensitivity: 1.6 mV/m (AM), 2.0 µV (FM) for 26 dB S/N • Good strong signal behaviour: 10 V/m at AM, 500 mV at FM
• Low output distortion: 0.8% at AM, 0.3% at FM
• Signal level output
• Soft mute
• Signal dependent stereo
• IF output signals available for IF counting
• Designed for simple and reliable printed-circuit board layout
• High impedance MOSFET input on AM

APPLICATIONS
• Portable AM/FM stereo radio
• Mini/midi receiver sets
• Digitally tuned personal headphone radio.

Silabs
Silicon Laboratories
Description : broadcast AM/FM/SW/LW/RDS Radio Receiver

Description
The Si4732-A10 digital CMOS AM/FM/SW/LW/RDS radio receiver IC integrates the complete broadcast tuner and receiver function from antenna input to digital audio output. The device leverages the Silicon Labs broadcast proven digital low-IF architecture, enabling a cost-effective digital audio platform for consumer electronic applications with high TDMA noise immunity, superior radio performance, and high fidelity audio power amplification.

Features
- Worldwide FM band support (64–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- SW band support (2.3–26.1 MHz)
- LW band support (153–279 kHz)
- Excellent real-world performance with integrated AM/ FM/SW/LW/RDS
- Integrated VCO
- Advanced AM/FM seek tuning
- Automatic frequency control (AFC)
- Automatic gain control (AGC)
- Digital FM stereo decoder
- Programmable de-emphasis
- Advanced Audio Processing
- Seven selectable AM channel filters
- AM/FM/SW/LW digital tuning
- EN55020 compliant
- No manual alignment necessary
- Programmable reference clock
- Adjustable soft mute control
- RDS/RBDS processor
- Digital audio out
- 2-wire and 3-wire control interface
- Integrated LDO regulator
- Wide range of ferrite loop sticks and air loop antennas supported
- SOIC package
    - RoHS compliant

Applications
- Table and portable radios
- Mini/micro systems
- CD/DVD and Blu-ray players
- stereo boom boxes
- Modules for consumer electronics
- Clock radios
- Mini HiFi and docking stations
- Entertainment systems

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