TEF6614 Datasheet – Advanced tuner on main-board IC
Package SOT287-1 Type
TEF6614 overview
The TEF6614 is an AM/FM radio including Phase-Locked Loop (PLL) tuning system. The system is designed in such a way, that it can be used as a world-wide tuner covering common FM and AM bands for radio reception. All functions are controlled by the I2C-bus. Besides the basic feature set it provides a good weak signal processing function and a dynamic bandwidth control at FM reception.
It includes a newly developed demodulator for data reception of Radio Data System (RDS) and Radio Broadcast Data System (RBDS) transmissions
Datasheet
tef6614-datasheet.pdf
TEF6614 features
- Backwards compatible with TEF6606; equal footprint, application and performance
- Fully integrated RDS/RBDS demodulator with improved performance
- RDS demodulator data output via I2C-bus; 32-bit buffer for reduced read out
- RDS data available signalled by I2C-bus bit (polling)
- FM tuner for Japan, Europe, US and OIRT reception
- AM tuner for Long Wave (LW), Medium Wave (MW) and Short Wave (SW) reception
- Integrated AM Radio Frequency (RF) selectivity
- Integrated PLL tuning system; controlled via I2C-bus including automatic low/high side Local Oscillator (LO) injection
- Fully integrated LO
- No alignment needed
- Very easy application on the main board
- No critical RF components
- Fully integrated Intermediate Frequency (IF) filters and FM stereo decoder
- Fully integrated FM noise blanker
- Fully integrated AM audio noise blanker
- Field strength (LEVEL), multipath [Wideband AM (WAM)], noise [Ultra Sonic Noise (USN)] and deviation dependent stereo blend
- Field strength (LEVEL), multipath (WAM), noise (USN) and deviation dependent High-Cut Control (HCC)
- Field strength (LEVEL), multipath (WAM) and noise (USN) dependent soft mute
- Adjacent channel and deviation dependent IF bandwidth control [Precision Adjacent Channel Suppression (PACS)]
- n Single power supply
- Qualified in accordance with AEC-Q100
TEF6614 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | AMRFIN | AM RF single-ended input |
| 2 | AMRFDEC | AM RF decoupling |
| 3 | FMIN2 | FM RF differential input 2 |
| 4 | FMIN1 | FM RF differential input 1 |
| 5 | GNDRF | RF ground |
| 6 | Vcc2 | supply voltage 2 |
| 7 | AMRFAGC | AM RF Automatic Gain Control (AGC) |
| 8 | LOUT | audio left output |
| 9 | ROUT | audio right output |
| 10 | GNDAUD | audio ground |
| 11 | AMIFAGC2 | AM IF AGC 2 |
| 12 | MPXIN | FM Multiplex (MPX) and AM audio input to stereo decoder |
| 13 | MPXOUT | FM MPX and AM audio output from tuner part |
| 14 | RSSI | Received Signal Strength Indication (RSSI) |
| 15 | XTAL2 | 4 MHz crystal oscillator pin 2 |
| 16 | XTAL1 | 4 MHz crystal oscillator pin 1 |
| 17 | GNDD | digital ground |
| 18 | SCL | I2C-bus clock input |
| 19 | SDA | I2C-bus data input and output |
| 20 | VREF | reference voltage decoupling |
| 21 | VREGSUP | supply voltage internal voltage regulators |
| 22 | Vcc1 | Supply voltage 1 |
| 23 | GND | ground |
| 24 | VCODEC | decoupling for Voltage-Controlled Oscillator (VCO) supply voltage |
Show all 32 pins
| Pin | Name | Description |
|---|---|---|
| 25 | PLL | PLL tuning voltage |
| 26 | PLLREF | PLL reference voltage |
| 27 | TEST | test pin with optional general use (open-drain output); in normal operation, the pin is left open |
| 28 | AMSELIN 1 | AM selectivity input 1 |
| 29 | AMSELIN 2 | AM selectivity input 2 |
| 30 | AMIFAGC1 | AM IF AGC 1 |
| 31 | AMISELOUT 1 | AM selectivity output 1 |
| 32 | AMISELOUT 2 | AM selectivity output 2 |
TEF6614 applications
- Car Radio Tuner IC
- Automotive Infotainment Systems
- FM/AM Radio Receivers
- Audio Processing in Vehicles
- Digital Radio Solutions
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