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The NJU72342V-TE2 is a 4-channel electronic volume control IC manufactured by Nisshinbo Micro Devices Inc.
(also marketed under NJR Corporation/NJRC) .
Here's a summary of its key functions and applications in English:
Primary Function: 4-Channel Audio Signal Processor/Electronic Volume Control.
It digitally controls the attenuation (volume level) of four separate audio channels .
Control Interface: Utilizes an I²C Bus Interface for digital control of all functions, including volume setting and mute .
Volume Control Range: Offers a wide attenuation range from 0 dB to -95 dB, adjustable in 1 dB steps, and includes a mute function [-95dB/Mute]
Input Gain Stage: Allows selection of initial input gain for each channel with options for 0 dB, +3 dB, +6 dB, or +9 dB .
High Audio Quality: Designed for low distortion (0.002% typ.) and low noise (2.0 µVrms typ.), making it suitable for high-fidelity applications
External Mute Control: Features a dedicated MUTE terminal for immediate external muting of the outputs, complementing software control via I²C
Zero-Cross Detection: Incorporates a zero-cross detection circuit, which helps prevent audible clicks and pops when adjusting volume levels
Wide Operating Voltage: Can operate from a single power supply ranging from +4.5V to +14.5V
Technology & Package: Built using CMOS technology and comes in a compact 14-pin SSOP surface-mount package
The IC is designed for use in various audio systems requiring multi-channel volume control . Typical applications include:
Audio Systems (e.g., Home Stereos, Receivers)
Multi-channel Audio Equipment (e.g., Surround Sound Processors)
Professional Audio Mixers (small format)
Televisions and Home Theater Systems
Car Audio Systems (within its voltage range)
Any application requiring digitally controlled, high-quality audio attenuation across multiple channels
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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of NJU72342V-TE2.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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Part Number | NJU72342V-TE2 | MUSES72320V-TE2 | MUSES72323V-TE1 | NJU72751AV-TE1 | NJU72322V-TE1 |
Manufacturer | Nisshinbo Micro Devices Inc. | Nisshinbo Micro Devices Inc. | Nisshinbo Micro Devices Inc. | Nisshinbo Micro Devices Inc. | Nisshinbo Micro Devices Inc. |
Package/Case | 14-LSSOP (0.173, 4.40mm Width) | 14-LSSOP (0.173, 4.40mm Width) | 14-LSSOP (0.173, 4.40mm Width) | 14-LSSOP (0.173, 4.40mm Width) | 14-LSSOP (0.173, 4.40mm Width) |
Packaging | Bulk | Bulk | Bulk | Bulk | Bulk |
Series | - | - | - | - | - |
Product Status | Active | Active | Active | Active | Active |
Function | Audio Signal Processor | Audio Signal Processor | Audio Signal Processor | Audio Signal Processor | Audio Signal Processor |
Applications | Audio Systems | Audio Systems | Audio Systems | Audio Systems | Audio Systems |
Number of Channels | 4 | 4 | 4 | 4 | 4 |
Interface | I²C | I²C | I²C | I²C | I²C |
Voltage-Supply | 4.5V ~ 14.5V | 4.5V ~ 14.5V | 4.5V ~ 14.5V | 4.5V ~ 14.5V | 4.5V ~ 14.5V |
Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
Specifications | - | - | - | - | - |
Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
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