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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) : LC72707E LC72707
SANYO
SANYO -> Panasonic
Description : FM Multiplex Receiver IC Supporting All Worldwide Standards

Overview
The LC72707E is a data demodulation IC for receiving FM Multiplex broadcasts for mobile receivers in the DARC format. In conjunction with a bandpass filter IC (either the LV3400M or the LV3403M), the LC72707E can form a compact yet high-functionality FM Multiplex reception system. This IC provides built-in DRIS system data processing decoder for Digital DJ CO.,LTD. Since supporting all the FM Multiplex frame structures (methods A, A’, B, and C) in the ITU-R recommendations, this IC is optimal for use in radios for FM Multiplex system. Note that a contract with Digital Incorporated is required to evaluate this IC and to produce end products that support DRIS.

Functions
• MSK delay detection circuit based on a 1T delay
• Error correction function based on a 2T delay (in the MSK detector stage)
• Digital PLL based clock regeneration circuit
• Shift-register Type 1T and 2T delay circuits
• Block and frame synchronization detection circuit
• Serial control data transfer based support for the A, B, and C FM Multiplex frame structures
• Function for setting the number of allowable BIC errors, the number of synchronization protection.
• Error correction using (272, 190) codes
• Layer 4 CRC code checking circuit
• On-chip frame memory and memory control circuit for vertical correction

Applications
• Receivers for DARC format mobile receiver FM Multiplex broadcasts
• FM Multiplex receiver for the worldwide DRIS system f Digital DJ Incorporated.

Part Name(s) : TA7323P
Toshiba
Toshiba
Description : PLL FM Stereo Multiplex (Excellent Space Factor Type)

PLL FM Stereo Multiplex LOW VOLTAGE USE (SIP 9 PIN)

1. Suitable for Portable Sets or Low Voltage use.
2. Very Few External Parts.
3. Small Occupied Area on Board.
4. Easy Adjustment.
5. Excellent Pilot Lamp Sensitibivity [sic] : VL(ON)=10mVrms (Typ.)
6. Suitable for LED Driving  (Maximum Lamp Current: 30mA)
7. Operating Supply Voltage Range : VCC=3.5~12V
8. Recommended Supply Voltage: VCC=5V
9. Excellent Channel Separation Through Entire
  Audio Frequency Range: Sep=40dB (Typ.) [sic]
10.  Low Distortion : THD=0.15% (Typ.) at VIN=150mVrms  Stereo.
11.  Output Gain Control Capability with Various Load Resistance (Plus Gain Capability)



Package : Toshiba 5-23B (SIP-9)

Part Name(s) : LA3370
SANYO
SANYO -> Panasonic
Description : PLL FM Multiplex Stereo Demodulator for Car Stereo

Overview
The LA3370 is a Multiplex IC for FM car Stereo, and it has the following 2 functions through its utilization of the IF meter output voltage, etc.
1. Stereo noise control (SNC) under which the noise particular to the FM Stereo unit in the weak electric field is reduced smoothly.
2. High-cut control (HCC) under which the high frequency is smoothly attenuated. In additioin, the LA3370 can be, due to its low distortion Factor, an IC for Multiplex Stereo demodulator which is appropriate for the car component Stereo unit.

Features
• Low distortion Factor. (0.05% typ. 300mV input, mono)
• The ripple of power source can effectively be rejected. (35dB typ.)
• The range of voltage to be used is wide. (VCC=6.5 to 14V)
• The Space Factor is advantageous because of the single-end package.
• The printed circuit board can easily be prepared as 3mm pitch is used between the pins.

Part Name(s) : NTE1461
NTE-Electronic
NTE Electronics
Description : Integrated Circuit Phase Lock Loop (PLL) FM Stereo Demod

Description:
The NTE1461 is a Multiplex integrated circuit in a 16−Lead SIP Type package designed for use in FM car Stereo applications. Due to its low distortion Factor, this device can be used as a Multiplex Stereo demodulator appropriate for car component Stereo units.

Features:
• Low Distortion Factor: 0.05% Typ, 300mV Input Mono
• The Ripple of Power Source can Effectively be Rejected
• Wide Supply Voltage Range: VCC = 6.5V to 14V

Functions:
Stereo Noise Control (SNC Pin):
   Through controlling the quality of sound from Stereo mode to monaural mode with the voltage applied to the control pin, the FM Stereo noise in the weak electic field is reduced by this function.
• High−Cut Control Function (HCC Pin):
   The FM noise in weak electric field is reduced through the attenuation of high frequency thereof.
   Such attenuation can be changed smoothly from “Normal” to “High−Cut” by controlling the voltage applied to the control pin. The volume of “High−Cut” can be selected by using a capacitor installed at the outside of he unit.
Stereo/Monaural Automatic Conversion:
   This conversion operates in priority to the Stereo noise control. Preference on the pilot input.
• Stoppage of VCO Oscillation:
   When a voltage higher than 6V is applied on the HCC pin, the oscillation of VCO can be discontinued. An erroneous operation of Stereo lamp does not happen even at this stage.
• With spearation control terminal

 

Part Name(s) : NTE789
NTE-Electronic
NTE Electronics
Description : Integrated Circuit Stereo Multiplex Decoder

Description:
The NTE789, a monolithic silicon integrated circuit, is a Stereo Multiplex decoder intended for FM Multiplex systems.
This Stereo Multiplex decoder requires only one low–inductance tuning coil (requires only one adjustment for complete alignment), provides automatic Stereo switching, energizes a Stereo indicator lamp, and operates from a wide range of voltage supplies.
Figure 1 shows the block diagram for the NTE789. The input signal form the detector is amplified by a low–distortion preamplifier and simultaneously applied to both signal, generated by a local voltage–controlled oscillator (VCO), is counted down by two frequency dividers to a 38kHz signal and to two 19–kHz pilot–tone supplied by the FM detector is compared to the locally generated 19–kHz signal in a synchronous detector.

Features:
• Requires the use of only one low–inductance tuning coil
• Automatic Stereo switching
• Directly drives a Stereo indicator lamp up to 100mA
• Includes driver for Stereo–lamp indicator
• Operates from a wide range of power supplies: 10 to 16 volts
• Requires only one adjustment for alignment
• Switching from monaural to Stereo and Stereo to monaural produces no audible thumps
• Low distortion: under 0.5%
• Separate dc input permits Stereo defeat or enable
• High signal output: directly drives audio amplifiers
Excellent SCA (storecast) rejection: 55dB typ.
• High audio channel separation: 40dB typ.

 

Part Name(s) : LA3450
SANYO
SANYO -> Panasonic
Description : PLL FM MPX Stereo Demodulator with Adjustment-Free VCO and Measure Against Adjacent Channel Interference

Overview
The LA3450 is a multifunctional, high-performance FM Multiplex demodulator IC designed for high-grade FM Stereo tuner use. The LA3450 features adjustment-free VCO, measure against adjacent channel interference, pilot canceler, low distortion (0.005%), and high S/N (101dB).

Features
• Adjustmet-free VCO : Eliminates the need to adjust freerunning frequency.
• Good temperature characteristics of VCO : ±0.1% typ. for ±50°C change.
• No antibirdie filter is required because a measure is taken against adjacent channel interference.
• Less carrier leak 19kHz : 53dB 38kHz : 50dB
• The on-chip cal-tone signal generator facilitates application of recording calibrator.
• Low distortion MONO 0.005% Stereo 0.015%
• High S/N 101dB typ. MONO IHF-A BPF
• High voltage gain FM : 10dB (gain variable) AM : 16dB (gain variable)
• Wide dynamic range Output level 3.3V typ. (THD=1%, MONO)

Functions
PLL Multiplex Stereo demodulator.
• Adjustment-free VCO.
• Measure against adjacent channel interference.
• Pilot canceler.
• Cal-tone signal generator.
• AM/FM input, AM/FM selector.
• Post amplifier (gain variable Type).
• VCO stop.
• Right/left independent adjustment of separation (single adjustment available).

Applications
• Home Stereo, CD, AV-use PLL FM MPX Stereo demodulator IC with adjustment-free VCO.

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

Part Name(s) : LC72706E LC72706
SANYO
SANYO -> Panasonic
Description : FM Multiplex Receiver IC Supporting All Worldwide Standards

Overview
The LC72706E is a data demodulation IC for receiving FM Multiplex broadcasts for mobile receivers in the DARC format. In conjunction with a bandpass filter IC (either the LV3400M or the LV3403M), the LC72706E can form a compact yet high-functionality FM Multiplex reception system. This IC supports all the FM Multiplex frame structures (methods A, B, and C) in the ITU-R recommendations.

Functions
• MSK delay detection circuit based on a 1T delay
• Error correction function based on a 2T delay (in the MSK detector stage)
• Digital PLL based clock regeneration circuit
• Shift-register Type 1T and 2T delay circuits
• Block and frame synchronization detection circuit
• Serial control data transfer based support for the A, B, and C FM Multiplex frame structures
• Function for setting the number of allowable BIC errors, the number of synchronization protection.
• Error correction using (272, 190) codes
• Layer 4 CRC code checking circuit
• On-chip frame memory and memory control circuit for vertical correction
• 7.2-MHz crystal oscillator circuit

Applications
• Receivers for DARC format mobile receiver FM Multiplex broadcasts

Part Name(s) : NTE722
NTE-Electronic
NTE Electronics
Description : Integrated Circuit FM Stereo Multiplex Decoder

Description:
The NTE722 is a monolithic FM Stereo Multiplex Decoder System in a 14–Lead DIP Type package. This integrated circuit demodulated a Stereo Multiplex signal into the right and left audio channels while inherently suppressing SCA frequency components. Internal provision is made for driving an external Stereo mode indicator lamp. The Excellent performance and wide supply range requirement make the NTE722 suitable for all line–operated and automotive FM Stereo Multiplex applications.

Features:
• 45dB Channel Separation
• 55dB Storcast Rejection without SCA Filters
• High Current Stereo Indicator Lamp Driver
• Operation with 8V to 14V Supplies

 

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