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TEA6846H
Datasheet
TEA6846H
(Product Specification)
04-Feb-03, 48 pages, 258 kB
General description
The TEA6846H is a single IC with car radio tuner for AM and FM intended for microcontroller tuning with the I 2 C-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.
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; weather band radio flag output
- 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 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 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 drive can be activated by the I 2 C-bus as a local or distance function; AGC threshold is a programmable and keyed function switchable via the I 2 C-bus
- FM IF linear amplifiers with high dynamic input range
- FM quadrature demodulator with automatic centre frequency adjustment and Total Harmonic Distortion (THD) compensation
Products/packages
All type numbers in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| TEA6846H/V2 | TEA6846H/V2,518 | 9352 635 57518 | Discontinued Replacement product | SOT315-1
(LQFP80) | Reel Dry Pack, SMD, 13" | Standard Marking | |
| TEA6846H/V2 | TEA6846H/V2,557 | 9352 635 57557 | Discontinued Replacement product | SOT315-1
(LQFP80) | Tray Dry Pack, Bakeable, Multiple | Standard Marking |
Quality/reliability/chemical content
All type numbers in the table below are discontinued. See the table Discontinued information for more information.
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| TEA6846H/V2 | TEA6846H/V2,518 | TEA6846H_V2 |
| week 8, 2005 | ||||
| TEA6846H/V2 | TEA6846H/V2,557 | TEA6846H_V2 |
| week 8, 2005 |
Discontinued information
| Type number | Ordering code (12NC) | Last-time buy date | Last-time delivery date | Replacement product | DN Notice | Status | Comments |
|---|---|---|---|---|---|---|---|
| TEA6846H/V2 | 935263557518 | 3-okt-09 | 3-apr-10 | $product.prunedProduct.eplacementPart | DN 63 |
| FAB ICH Closure. Refer to CIN200810022I dated November 5, 2008. |
| TEA6846H/V2 | 935263557557 | 3-okt-09 | 3-apr-10 | $product.prunedProduct.eplacementPart | DN 63 |
| FAB ICH Closure. Refer to CIN200810022I dated November 5, 2008. |
Design support
Application Notes
Parametrics/similar products
| Type number | Package | Application | FUNCTION | Operating temp.(Cel) | No. of Pins | Receiver Type | Operating/Supply Voltage (MAX.-Vcc,Vp,VDD)(V) |
|---|---|---|---|---|---|---|---|
| TEA6846H/V2 | SOT315-1
(LQFP80) | Carradio | Receivers | -40~85 | 80 | AM/FM | 10 |