3.1 Electric Characteristics

 

Function

Signal Name

Pin No

I/O

Signal level

Comments

 

 

Power

Vcc

29

I

3.6V to 6V

Ityp = 50mA

 

 

Supply

 

 

 

 

 

 

 

 

GND

11, 15,

 

 

6 Ground

 

 

 

 

18, 30,

 

 

terminals to

 

 

 

 

36, 38

 

 

be attached

 

 

 

 

 

 

 

in parallel

 

 

RS232

UART_TX

21

O

VOLmax=0.2V

 

 

 

Interface

 

 

 

VOHmin=2.8V

 

 

 

 

UART_RX

25

I

VILmax=0.8V

 

 

 

 

 

 

 

VIHmin=2.10V

 

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

 

UART_CTS

19

I

VILmax=0.8V

 

 

 

 

 

 

 

VIHmin=2.10V

 

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

 

UART_RTS

23

O

VOLmax=0.2V

 

 

 

 

 

 

 

VOHmin=2.8V

 

 

 

 

UART_DSR

10

I

VILmax=0.8V

 

 

 

 

 

 

 

VIHmin=2.10V

 

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

 

UART_DTR

12

O

VOLmax=0.2V

Shared with

 

 

 

 

 

 

VOHmin=2.8V

GPIO3

 

 

 

UART_RI

6

I or O

O/P : VOLmax=0.2V

Direction

 

 

 

 

 

 

VOHmin=2.8V

may be

 

 

 

 

 

 

I/P : VILmax=0.8V

programme

 

 

 

 

 

 

VIHmin=2.10V

d.

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

 

UART_DCD

8

I or O

O/P : VOLmax=0.2V

Direction

 

 

 

 

 

 

VOHmin=2.8V

may be

 

 

 

 

 

 

I/P : VILmax=0.8V

programme

 

 

 

 

 

 

VIHmin=2.10V

d.

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

External

VCC_1V8

39

O

1.8V typical

For

 

 

Power

 

 

 

 

monitoring

 

 

Supply

 

 

 

 

only. No

 

 

 

 

 

 

 

current

 

 

 

 

 

 

 

source

 

 

 

VCC_3V3

27

O

3.3V typical

 

 

 

SPI Bus

SPI_MOSI

17

I

VILmax=0.8V

Used to

 

 

 

 

 

 

VIHmin=2.10V

reprogram

 

 

 

 

 

 

VIHmax=3.7V

Flash

 

 

 

SPI_MISO

5

O

VOLmax=0.2V

 

 

 

 

 

 

 

VOHmin=2.8V

 

 

 

 

SPI_CSB

7

I

VILmax=0.8V

 

 

 

 

 

 

 

VIHmin=2.10V

 

 

 

 

 

 

 

VIHmax=3.7V

 

 

 

 

SPI_CLK

9

I

VILmax=0.8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11 of 36

Page 11
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TDK blu2i manual Electric Characteristics, Function Signal Name Pin No Signal level Comments

blu2i specifications

The TDK Blu2i is an innovative Bluetooth audio device designed to elevate the listening experience for audiophiles and casual listeners alike. This versatile device combines advanced Bluetooth technology with high-quality audio performance to create an outstanding solution for wireless sound.

One of the standout features of the TDK Blu2i is its compatibility with various Bluetooth profiles, allowing it to seamlessly connect with a wide range of devices, including smartphones, tablets, and laptops. Utilizing the latest Bluetooth 5.0 technology, the Blu2i ensures a stable connection, reduced latency, and an extended range, making it ideal for both indoor and outdoor use.

In terms of audio performance, the TDK Blu2i boasts impressive sound quality. The device supports high-resolution audio streaming, delivering superior clarity and detail. Users can enjoy their favorite tracks with deep bass, crisp highs, and an overall balanced sound profile. The built-in digital signal processing (DSP) enhances audio playback, ensuring that every note is rendered with precision.

Another notable characteristic is the TDK Blu2i's long-lasting battery life. With up to 20 hours of playback on a single charge, users can indulge in extended listening sessions without worrying about frequent recharging. The device also features quick charge capability, allowing users to enjoy several hours of playback with just a short charging session.

The design of the TDK Blu2i is both stylish and functional. Its compact and lightweight form factor makes it easy to carry, while its durable construction ensures it can withstand everyday use. The device is equipped with intuitive controls, allowing users to adjust volume, skip tracks, and manage calls effortlessly.

Additionally, the TDK Blu2i supports voice assistant integration, enabling users to access their smart devices hands-free. This feature adds an extra layer of convenience, allowing for seamless multitasking without the need to reach for a phone.

In summary, the TDK Blu2i is a powerful Bluetooth audio device that encapsulates the essence of modern audio technology. With its high-quality sound, extensive battery life, and user-friendly features, it caters to the needs of any audio enthusiast looking for a reliable and high-performing wireless solution.