RequiredTEA6848H
Category: IC Chips
Description： In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS) The TEA6848H is a single IC with car radio tuner for AM, FM and Weather Band (WB) intended for microcontroller tuning with the I2C-bus. It provides the following functions: AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz FM double conversion receiver with integrated image rejection for IF1 and for IF2 capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands
fully integrated dynamic selectivity at 450 kHz FM IF2
FM demodulator with dynamic threshold extension
centre frequency alignment of IF2 selectivity via the I2C-bus The tuning system includes VCO, crystal oscillator and PLL synthesizer on one chip. Features FM mixer 1 for conversion of FM RF (65 to 108 MHz and US weather band) to IF of 10.7 MHz
the mixer provides inherent image rejection
for European and US FM band/WB (weather band) the mixer is driven with a "high" injection Local Oscillator (LO)
in Japan FM band and East Europe FM band the mixer is driven with a "low" injection LO AM mixer 1 for conversion of AM RF to AM IF1 of 10.7 MHz LC tuner oscillator providing mixer frequencies for FM mixer and AM mixer 1 AM mixer 2 for conversion of AM IF1 to AM IF2 of 450 kHz Crystal oscillator providing mixer frequencies for AM mixer 2 and FM mixer 2 and reference for synthesizer PLL, IF count, timing for Radio Data System (RDS) update and reference frequency for car audio signal processor ICs Fast synthesizer PLL tuning system with local control for inaudible RDS updating Timing function for RDS update algorithm and control signal output for car audio signal processor ICs (TEA688x, SAA77xx, TEF689x) Digital alignment circuit for bus controlled matching of oscillator tuning voltage to FM antenna tank circuit tuning voltage AGC PIN diode drive circuit for FM RF AGC
AGC detection at FM mixer input
the AGC PIN diode drive can be activated by the I2C-bus as a local function for search tuning
AGC threshold is a programmable and keyed function switchable via the I2C-bus FM IF linear amplifier with high dynamic input range FM mixer 2 for conversion of FM IF1 to FM IF2 of 450 kHz with inherent image rejection Fully integrated dynamic selectivity and FM demodulator at IF2
improved sensitivity with dynamic threshold extension
centre frequency of IF2 selectivity alignment via the I2C-bus Level detector for AM and FM with temperature compensated output voltage
starting point and slope of level output is programmable via the I2C-bus AM cascode AGC stage and RF PIN diode drive circuit
AGC threshold detection at AM mixer 1 and IF2 AGC input.
Price range ($)
2.28826 4.42890
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TEA6848H
TEA6848H has several brands around the world that may have alternate names for TEA6848H due to regional differences or acquisition. TEA6848H may also be known as the following names:
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Description
TEA6848H
Stock:0 |
Philips 04+ |
In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS) The TEA6848H is a single IC with car radio tuner for AM, FM and Weather Band (WB) intended for microcontroller tuning with the I2C-bus. It provides the following functions: AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz FM double conversion receiver with integrated image rejection for IF1 and for IF2 capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands; fully integrated dynamic selectivity at 450 kHz FM IF2; FM demodulator with dynamic threshold extension; centre frequency alignment of IF2 selectivity via the I2C-bus The tuning system includes VCO, crystal oscillator and PLL synthesizer on one chip. Features FM mixer 1 for conversion of FM RF (65 to 108 MHz and US weather band) to IF of 10.7 MHz; the mixer provides inherent image rejection; for European and US FM band/WB (weather band) the mixer is driven with a "high" injection Local Oscillator (LO); in Japan FM band and East Europe FM band the mixer is driven with a "low" injection LO AM mixer 1 for conversion of AM RF to AM IF1 of 10.7 MHz LC tuner oscillator providing mixer frequencies for FM mixer and AM mixer 1 AM mixer 2 for conversion of AM IF1 to AM IF2 of 450 kHz Crystal oscillator providing mixer frequencies for AM mixer 2 and FM mixer 2 and reference for synthesizer PLL, IF count, timing for Radio Data System (RDS) update and reference frequency for car audio signal processor ICs Fast synthesizer PLL tuning system with local control for inaudible RDS updating Timing function for RDS update algorithm and control signal output for car audio signal processor ICs (TEA688x, SAA77xx, TEF689x) Digital alignment circuit for bus controlled matching of oscillator tuning voltage to FM antenna tank circuit tuning voltage AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC PIN diode drive can be activated by the I2C-bus as a local function for search tuning; AGC threshold is a programmable and keyed function switchable via the I2C-bus FM IF linear amplifier with high dynamic input range FM mixer 2 for conversion of FM IF1 to FM IF2 of 450 kHz with inherent image rejection Fully integrated dynamic selectivity and FM demodulator at IF2; improved sensitivity with dynamic threshold extension; centre frequency of IF2 selectivity alignment via the I2C-bus Level detector for AM and FM with temperature compensated output voltage; starting point and slope of level output is programmable via the I2C-bus AM cascode AGC stage and RF PIN diode drive circuit; AGC threshold detection at AM mixer 1 and IF2 AGC input. |
≥1: US $4.42890 US $3.98601 ≥5: US $2.95260 US $2.65734 ≥10: US $2.65734 US $2.39161 ≥20: US $2.58352 US $2.32517 ≥50: US $2.50971 US $2.25874 ≥100: US $2.43590 US $2.19231 ≥200: US $2.36208 US $2.12587 ≥500: US $2.33255 US $2.09929 ≥1000: US $2.28826 US $2.05943
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Inquiry
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Out of stock |
TEA6848H
Stock:58 |
Philips 02+ |
In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS) The TEA6848H is a single IC with car radio tuner for AM, FM and Weather Band (WB) intended for microcontroller tuning with the I2C-bus. It provides the following functions: AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz FM double conversion receiver with integrated image rejection for IF1 and for IF2 capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands |
≥1: US $2.93370 US $2.64033
More:
Inquiry
|
|
TEA6848H
Stock:2 |
Philips 04+ |
In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS) The TEA6848H is a single IC with car radio tuner for AM, FM and Weather Band (WB) intended for microcontroller tuning with the I2C-bus. It provides the following functions: AM double conversion receiver for LW, MW and SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz FM double conversion receiver with integrated image rejection for IF1 and for IF2 capable of selecting US FM, US weather, Europe FM, East Europe FM and Japan FM bands |
≥1: US $3.35280 US $3.15163
More:
Inquiry
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