TPA2001D1 (Class-D Modulator)

Figure 4−7. TPA2001D1 Block Diagram

 

 

VDD

AGND

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

Pre-Amp

 

Integrator

Comparator

 

 

 

Gain

 

 

_

Cint2

+

Deglitch

Gate

INN

 

 

 

_

Adj.

 

Rs2

 

 

Logic

Drive

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

_

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cmv

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

Gain

 

 

_

 

 

 

 

INP

Adj.

 

Rs1

 

 

+

Deglitch

Gate

 

 

 

 

 

 

 

 

 

 

_

 

 

 

 

 

 

Logic

Drive

 

 

 

 

 

Cint1

 

 

 

SDZ

SDZ

 

 

 

 

 

Startup

OC

TTL

 

 

 

 

 

Protection

 

 

 

 

 

 

Detect

 

Input

 

 

 

 

 

Logic

GAIN1

 

Biases

 

 

 

 

Buffers

 

Ramp

 

 

 

 

 

 

 

 

 

 

 

and

 

 

 

GAIN0

 

 

Generators

 

 

 

Gain

2

References

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermal

VDDok

COSC

 

 

 

 

 

 

 

 

ROSC

 

 

 

 

 

 

 

 

BYPASS

 

 

 

 

 

 

 

 

PVDD

OUTN

PGND

PVDD

OUTP

PGND

Figure 4−8 shows the output PWM signal and the input signal of the TPA2001D1.

Figure 4−8. TPA2001D1 Inputs and Outputs With 20−kHz Sine Wave

VOUT+

 

CH1

 

VOUT−

 

CH2

 

VOUT

 

Differential

 

CH3

 

VIN

 

CH4

 

Ch1: 3V/Div Ch2: 3V/Div Ch3: 3V/Div Ch4: 1V/Div

t − Time − 5

ms

4-8

Page 30
Image 30
Texas Instruments APA100 manual 7. TPA2001D1 Block Diagram

APA100 specifications

Texas Instruments is known for its innovation in the field of analog and embedded processing, with the APA100 being one of its noteworthy products. The APA100 is an advanced analog front-end (AFE) device designed to meet the needs of various applications including industrial, automotive, medical, and consumer electronics.

One of the standout features of the APA100 is its high-resolution data conversion capability. It integrates both analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), providing unmatched precision and accuracy in signal processing. The device supports multiple sampling rates, which allows it to adapt to various requirements in different applications, ensuring optimal performance.

The power efficiency of the APA100 is another significant characteristic. Designed with low-power consumption in mind, it enables battery-operated devices to maximize their lifespan while maintaining reliable performance. This energy efficiency makes the APA100 suitable for wearables and portable medical devices, where power management is critical.

In addition to its power efficiency, the APA100 features integrated signal conditioning, which includes amplifiers and filters that enhance the quality of the input signals. This capability reduces the need for external components, thereby simplifying system design and reducing overall costs. With its built-in signal conditioning, engineers can expect improved accuracy and reduced noise in their measurements.

Texas Instruments has also included advanced communication interfaces in the APA100, such as SPI and I2C, to facilitate seamless integration with microcontrollers and processors. This flexibility allows for easy implementation into existing systems, enabling developers to take full advantage of the device's features without extensive re-engineering.

The APA100 is also designed for robustness, featuring a wide operating temperature range, making it suitable for use in harsh environments. This reliability is crucial for industrial applications where device performance can be affected by temperature fluctuations.

Overall, the Texas Instruments APA100 is an exceptional analog front-end device that combines high precision, low power consumption, integrated signal conditioning, and robust design. Its versatile features make it an ideal choice for various applications, paving the way for advancements in technology and improved performance across different sectors. With the APA100, engineers have a powerful tool that can help them innovate and enhance their products in highly competitive markets.