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TEA6843HL
TEA6843HL - Brand New PHI RF Receivers
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GENERAL DESCRIPTION
The TEA6843HL 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 single conversion receiver with integrated image rejection for IF = 10.7
MHz capable of selecting US FM, US weather, Europe FM, East Europe FM and
Japan FM bands
• The tuning system includes FM mixer, AM mixer 1, AM mixer 2, crystal
oscillator, VCO and PLL synthesizer on one chip.
FEATURES
• FM mixer for conversion of FM RF from 65 to 108 MHz to IF of 10.7 MHz; the
mixer provides inherent image rejection
• FM RF mixer can be set to receive weather band radio up to 162.55 MHz
• Buffer output for weather band flag
• 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 reference
for synthesizer PLL, IF count, timing for inaudible 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) or car radio integrated signal
processor IC (TEF689x)
• Digital auto alignment circuit for conversion of LC oscillator tuning
voltage to controlled alignment voltage of FM antenna tank circuit
• AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input;
the AGC PIN diode current can be set to a fixed value to allow local function
for search tuning; AGC threshold is a programmable and keyed function
switchable via the I2C-bus
• FM IF linear amplifiers with high dynamic input range
• FM quadrature demodulator with automatic centre frequency adjustment and
Total Harmonic Distortion (THD) compensation and level driven soft mute; soft
mute characteristic is adjustable 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 RF PIN diode drive circuit; AGC threshold detection at AM mixer 1 and IF2
AGC input; threshold is programmable via the I2C-bus; AM IF2 AGC and
demodulator
• AM AF output switchable to provide AM IF2 for AM stereo decoder
• AM noise blanker with blanking at AM IF2
• Several test modes available for fast IC and system tests.
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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