Overview
The TDA8579T/N1,118, produced by NXP USA Inc., is a dual common-mode rejection differential line receiver amplifier. This device is primarily designed for car radio applications, particularly where long connections between signal sources and amplifiers are necessary, and ground noise needs to be minimized. The TDA8579T features two identical differential amplifiers with a voltage gain of 0 dB and low distortion, making it ideal for audio signal processing.
Key Specifications
| Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | - | - | 18 | V |
| IORM (Repetitive Peak Output Current) | - | - | 40 | mA |
| Vsc (AC and DC Short-Circuit Safe Voltage) | - | - | 18 | V |
| Tstg (Storage Temperature) | -55 | 150 | °C | |
| Tamb (Ambient Temperature) | -40 | 85 | °C | |
| Tj (Maximum Junction Temperature) | - | 150 | °C | |
| Package | - | - | SOT96-1 (SO8) | - |
Key Features
- Two channel differential amplifier with 0 dB gain and low distortion.
- Excellent common-mode rejection up to high frequencies.
- Elimination of source resistance dependency in the common-mode rejection.
- High input impedance and low output impedance.
- Class AB output stage.
- Protection against high electrostatic discharge conditions (4000 V, 150 pF, 150 Ω).
- Quick-charge circuit to charge the input capacitor within 0.2 seconds.
- Few external components required.
Applications
The TDA8579T is primarily developed for car radio applications where long connections between signal sources and amplifiers (or boosters) are necessary, and ground noise needs to be minimized. It is also suitable for other audio applications requiring high common-mode rejection and low distortion.
Q & A
- What is the primary application of the TDA8579T?
The TDA8579T is primarily developed for car radio applications.
- What is the gain of the TDA8579T differential amplifiers?
The gain of the TDA8579T differential amplifiers is 0 dB.
- What is the common-mode rejection capability of the TDA8579T?
The TDA8579T has excellent common-mode rejection up to high frequencies.
- What type of output stage does the TDA8579T have?
The TDA8579T has a Class AB output stage.
- What is the maximum supply voltage for the TDA8579T?
The maximum supply voltage for the TDA8579T is 18 V.
- What is the maximum junction temperature for the TDA8579T?
The maximum junction temperature for the TDA8579T is 150 °C.
- Does the TDA8579T have protection against electrostatic discharge?
Yes, the TDA8579T has protection against high electrostatic discharge conditions (4000 V, 150 pF, 150 Ω).
- What package type is the TDA8579T available in?
The TDA8579T is available in the SOT96-1 (SO8) package.
- What is the purpose of the quick-charge circuit in the TDA8579T?
The quick-charge circuit is included to charge the input capacitor within 0.2 seconds.
- How many external components are typically required for the TDA8579T?
The TDA8579T requires few external components.
