Product overview
Description
The TDA7803A is a single chip quad bridge amplifier in advanced BCD technology integrating: a full D/A converter, digital input for direct connection to I2S (or TDM) and powerful MOSFET output stages.
The integrated D/A converter allows the performance to reach an outstanding 115 dB S/N ratio with more than 110 dB of dynamic range.
Moreover the TDA7803A integrates an innovative high efficiency concept, optimized also for uncorrelated music signals. The device is designed to be compatible to battery modulation for class-G systems.
Thanks to this concept, the dissipated “output power” under average listening conditions can be reduced up to 50% when compared to the conventional class AB solutions.
The TDA7803A integrates also a programmable PLL that is able to lock at the input frequencies of 64*Fs for all the input configurations.
The device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus. The same I2C bus allows to control several configurations of the device.
The TDA7803A is able to play music down to 6 V supply voltage - so it is compatible with the so called 'start stop' battery profile recently adopted by several car makers (thus reducing the fuel consumption and the impact over the environment).
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All features
- AEC-Q100 qualified
- 24-bit digital processing
- 115 dB dynamic range (A-weighted)
- SB-I (SB - improved) high efficiency operation the highest ’non - class D’ efficiency
- Parallel mode function availability
- High output power capability:
- 4 x 27 W 4 Ω @ 14.4 V, 1 kHz, THD = 10%
- 4 x 47 W 2 Ω @ 14.4 V, 1 kHz, THD = 10%
- Flexible mode control:
- Full I2C bus driving 1.8V/3.3V) with four addresses selectable (only for PowerSO36 package option)
- Independent front/rear play/ mute
- Selectable digital gains for very-low noise line-out function
- Digital diagnostic with DC and AC load detections
- Start-stop compatibility (operation down to 6V)
- Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
- Flexible serial data port (1.8 V / 3.3 V):
- I2S standard, TDM 4Ch, TDM 8Ch, TDM 16ch (8+8ch)
- Offset detector
- Independent front/rear clipping detector
- Programmable diagnostic pin
- CMOS compatible enable pin
- Thermal protection
- Pop free in mute to play transitions and viceversa
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STMicroelectronics - TDA7803A
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| TDA7803A-48X | Active | FLEXIWATT FM2 27 | Automotive | Ecopack2 | |
| TDA7803A-8ZT | Active | OUTLINE FW 27 SMD | Automotive | Ecopack2 | |
| TDA7803A-8ZX | Active | OUTLINE FW 27 SMD | Automotive | Ecopack2 | |
| TDA7803A-ZST | Active | PowerSO 36 | Automotive | Ecopack2 | |
| TDA7803A-ZSX | Active | PowerSO 36 | Automotive | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| TDA7803A-ZSX | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | PowerSO 36 | -40 | 105 | MALAYSIA | | ||
| TDA7803A-8ZT | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | OUTLINE FW 27 SMD | -40 | 105 | CHINA | | ||
| TDA7803A-ZST | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | PowerSO 36 | -40 | 105 | MALAYSIA | | ||
| TDA7803A-48X | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | FLEXIWATT FM2 27 | -40 | 105 | CHINA | | ||
| TDA7803A-8ZX | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | OUTLINE FW 27 SMD | -40 | 105 | CHINA | | ||
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors