This article makes a special introduction to this type of IC on the part of the power amplifier with the highest failure rate of the car receiver and receiver.
1. Special IC for brand machine
Figure 1 is Japan's pioneer company's dedicated car audio amplifier IC PAL006A (measured model DEH-P3300), the IC uses MOSFET output stage, 25-pin single-sided double-row zigzag package, contains 4 sets of BTL power amplifier, maximum power 50Wx4. Figure 2 is the power amplifier stage of the Ford XLlF-18C870-ED radio receiver made by Alpine for Ford. The IC is a PHILIPS 70039AB type, 17-pin unilateral dual in-line package, containing 2 sets of BTL circuits. It is also used in Japan Clarion's Clarion Addzest player.
2. Widely used TA8210AH ~ TA8215L series BTL stereo IC
As shown in Figure 3, TA8210AH is a 17-pin single-sided double-row zigzag package, and TA8215L is a 17-pin single-row in-line package.
3. Mono BTL dedicated IC
MB3730 (single row 7-pin in-line type) is often used in Toyota vans and some Panasonic retractors. The actual model in Figure 4 is OYOTA1806.
4. Other BTL dedicated ICs (see Figure 5-Figure 7)
Some brands of dedicated 4-channel BTL amplifier ICs (such as PAL006A in Figure 1 and similar PAL005A) are basically the same as the market TDA7382 and can be interchanged. In addition, the high-density assembly process of the new car audio (for example, the main circuit board of the "Ford" Ford XL1F in Figure 2 uses a double-sided double-layer sandwich with a thickness of 1.8 mm, that is, "four-sided copper-clad board"), which makes maintenance The follow-up of the line is more difficult. I hope this article is inspiring to readers. Since most of the schematic diagrams are based on physical mapping, I hope to correct the mistakes and omissions.
Guangdong Huang Bingquan Zhang Wei
This Pwm Decoder is able to accept 12-24VDC. 2811 Dmx Decoder is able to accept DC5V or DC6-24V. Led light test mode available with our decoder . The DMX to SPI converter is designed with advanced microchip technology to convert the universal standard DMX512/1990 signal into standard SPI(TTL) signal to control LED lights based on WS2801, LP6803, or similar chips. Each decoder can decode 512 channels. This compact decoder connects to DMX Devices like Luna, ISEELED DMX controller or any DMX light controller allowing its user to create endless possibilities and light shows.
Photo show of Spi Dmx Led Decoder:
Spi Dmx Led Decoder,2811 Dmx Decoder,24V Led Dmx Spi Decoder,Dmx To Spi Led Decoder
Shenzhen Iseeled Technology Co., Ltd. , https://www.iseeledlight.com