RS622 Low Noise Operational Amplifier of RUNIC Technology Has Entered JBL Supply Chain, the Main Parameter Characteristics Are Exposed
Recently, http://www.52audio.com/ disassembled JBL FLIP5 music kaleidoscope Bluetooth speaker, which continues to use a family design style. The overall appearance design of it is simple and stylish, and the identifiability is good. The internal structure of it is also relatively refined. The top and bottom are covered with radiation diaphragm cover plates, which is a classic feature of it.
In the process of disassembly, it is found that JBL FLIP5 processes audio signals by using two Rissoil RS622 low noise operational amplifiers. Let’s have a look at this chip.
The appearance of JBL FLIP5 music kaleidoscope Bluetooth speaker is cylindrical, and the overall body is covered with knitted mesh cloth. There are the LOGO of JBL brand in the top and bottom, which improves the identifiability of it. As for configuration, Bluetooth of it is V4.2. It supports JBL sound effect and multiple series connection as well as IPX7 waterproofing. The maximal endurance reaches up to 12 hours.
In the internal structure, when the external large-scale knitted mesh cloth is removed, it can be seen that the internal cavity is cylindrical, and the mainboard, battery and other units are fixed in the middle of the cavity. The maximal output power of full frequency horn unit is 20W, and the capacity of cylindrical battery pack reaches 4800mAh, which provides long endurance for the speaker.
In the mainboard, VIMICRO VA9638B multi-core SOC dual-mode Bluetooth chip is used in the main control chip, and two Rissoil RS622 chips is used in the operational amplifiers. Moreover, Texas Instruments TPA3128D2 D amplifiers, Awinic AW9110B 10 LED drivers, and MPS MP3431 switch boosted chips are also used.
The parameter definition is moderate and can provide a very low input bias current, which can minimize the impact on signal source. It is suitable for tackling the prevention and detection of audio signal, envelope detection and the drive current detection of motors, etc. It is an ideal choice for sensor interfaces, active filters and portable applications.
The main parameter characteristics include: the unit gain bandwidth is 7MHz, the typical value of input offset voltage is 0.7mV, the typical value of input bias current is 1pA, the low-input noise are 7.5nV√Hz@10KHz and 11nV√Hz@1KHz, the phase margin is 62 degrees, the power consumption is 600µA in each channel, it supports rail-to-rail input/output, the power ripple rejection ratio is PSRR 93dB, the common-mode rejection ratio is CMRR 92dB, it can be specified in a single or dual power from 2.5V to 5.5V and in a temperature range of −40°C to +125°C.
The detailed information picture of RUNIC RS622.
About RUNIC Technology
Jiangsu RUNIC Technology Co., Ltd. is a high-tech semiconductor company that is focused on the research, development and sale of high-performance, high-quality analog-signal or mixed-signal integrated circuit
The main products include precise operational amplifiers, high-speed operational amplifiers, general operational amplifiers, low noise operational amplifiers, micro-power operational amplifiers, micro-power comparators, analog switches, power management, electrical level conversion, voltage reference source, data converters, analog front end, etc.. Those products are widely used in industrial control, medical equipments, security monitoring equipments, instruments, cars, electronics, smart home, consumer electronics and other fields.
The headquarters of RUNIC Technology Co., Ltd. is in Wuxi city, Jiangsu province. It is located in the mainland and serves for the world. Relying on the good integrated circuit industry environment in Wuxi City, RUNIC Technology Co., Ltd. integrates upstream and downstream superior resources and dedicates to integrated chip design in Internet sensing, medical electronics, industrial electronics, consumer electronics and other fields. It has completed all kinds of design and development of chips.
It establishes sale centers and technology development centers in Beijing, Shenzhen, Jiangsu, and there are resident staffs who provide comprehensive services in Shanghai, Tianjin, Guangzhou, Zhengzhou, Hangzhou, Taipei and overseas. After several years of hard work, it has gradually formed a mature domestic and foreign market sales system and a complete pre-sale, in-sale, and after-sale technical service system and has a number of customers in domestic and foreign industrial benchmark enterprises. At the same time, it establishes a rapid response mechanism to know customer needs, market prospects and industry trends in time.
RUNIC Technology has always adhered to its core value, that is “independence and innovation, quality is the first, unity and cooperation, satisfy customers”. It has constantly launched analog-signal and mixed-signal chip products with more competitiveness and good market prospect, moreover, it develops with customers together to make a great achievement and makes RUNIC chips exist in every corner of the electronics world to be determined to become a first-rate analog chip company worldwide.