SSM2142 conversion board unbalanced RCA rotation balanced XLR output LG178
LG178 SSM2142 unbalanced RCA to balanced XLR output circuit board: the line is taken from the output part of the famous Sonic Frantiers decoder, the circuit design is accurate, and the dedicated SSM2142 unbalanced signal to balance signal integration block makes the line have excellent performance with ultra-low distortion. The noise is also very low. One board is stereo
The SSM2142 is an integrated differential output buffer amplifier that converts a single-ended input signal into a balanced output signal with high output drive capability.
Input RCA signal, output balance signal, suitable for audio source RCA output, and rear-end equipment only balanced input audio system. Especially for professional equipment amplifiers, the professional amplifier is XLR balanced input, this board can turn your signal source into the balanced signal required by the general power amplifier.
The maximum height of the finished board is about 20mm, and the modification does not take up much space.
Exquisite FR4 double-sided fiberglass board, high-quality PCB board (80 × 48mm), arc routing. Imported high-quality RC components are assembled. Japan KOA 1/4W high-precision five-color ring metal film resistor, Nissan brand-name electrolysis, gold-plated IC socket for easy upgrade, connected to DC ± 5V to ± 18V stable voltage to work, recommended ± 15V. The gain is about 6DB.
This feature can not be reversed, the wrong to buy can not be used
This board can be replaced with a better high-end op amp, and the effect is immediately visible. It is also possible to assemble different types of op amps according to customer needs, and the price is extra.
Friendly reminder: When using, pay special attention to the supply voltage should not exceed ±18V, and the three lines that balance the XLR signal cannot be connected incorrectly. The integrated block on the circuit board is genuine for second-hand teardown. The components on the board are different due to the assembly batch. The brands, models and specifications of some capacitors will be slightly different. The components and parameters on the board will be subject to the acceptance!
The internal resistance of the SSM2142 is laser trimmed with an accuracy of 0.0001%. In terms of distortion and noise as well as parasitic interference, its performance has undoubtedly reached the "professional level". Compared with the conversion circuit made by the 5532 op amp before, the performance of the conversion circuit is greatly improved.
The SSM2142 is an integrated differential output buffer amplifier that converts a single-ended input signal into a balanced output signal with high output drive capability. The device uses low-noise thermally-matched thin-film resistors and high-voltage slew-amplifiers to eliminate power line “beep”, RF interference, voltage drops, and other extraneous noise often encountered on long audio cable lines, helping to maintain the audio system. Sound quality.
Excellent laser-mode adjustment of the on-chip resistors results in excellent common-mode noise rejection and offset error performance, ensuring high gain accuracy. The well-designed output stage is capable of driving hard-to-drive loads, providing extremely low distortion performance even over very long cables or loads as low as 600 Ω, and is stable under all operating conditions.
The SSM2142 uses a cross-coupled electronically balanced topology that simulates the performance of a fully balanced transformer solution for line drives.
Compared with transformers, the SSM2142 is much smaller than a transformer, has lower distortion, takes up much less board space, and achieves common-mode rejection comparable to the former with fewer components.
The SSM2142 is used in series with the differential receiver SSM2141 to create a complete, reliable solution for audio signal drive and receive applications on long cables. The input common-mode rejection ratio of the SSM2141 at 60Hz is 100dB. Refer to the data sheet for performance specifications for this typical system.
Many car amplifiers need balanced input, you can add a dedicated power module (single power to dual power) and apply.
If you need to use it in a car audio system, be sure to note that the input of this board can only be connected to the CD low level output (RCA end), and can not be connected to the high level output (horn end) of the CD power amplifier, otherwise it will damage the board.
This board needs positive and negative symmetrical power supply, recommended power supply
AES=Audio Engineering Society
EBU=European Broadcasting Union
XLR—Cannon X Series, Latch, Rubber, commonly known as the Cannon, is completely different from the RCA (Lotus Head Interface) analog audio cable that transmits sound directly.
The Balanced Analog Audio interface uses two channels to transmit signals with the same signal and opposite phases.
The receiving device subtracts the two sets of signals, and the interference signal is cancelled out, thereby obtaining a high quality analog signal.
The joint consists of three joints, 1--ground (ground), 2--hot end (+ pole), and 3--cold end (-pole).
Of course, there are also devices that specify 3 for the hot end (+ pole) and 2 for the cold end (-pole), please see the device manual.
The photos of all the products of this department are photographed by themselves, and they are clearly photographed inside and outside. They are unobstructed and have no hidden and technical treatment. They are original and plain.
For the latest products, please refer to the newly opened website of this department. LGHIFIDIY.COM
The SSM2142 is an integrated differential output buffer amplifier that converts a single-ended input signal into a balanced output signal with high output drive capability. The device uses low-noise thermally-matched thin-film resistors and high-voltage slew-amplifiers to eliminate power line “beep”, RF interference, voltage drops, and other extraneous noise often encountered on long audio cable lines, helping to maintain the audio system. Sound quality.
Excellent laser-mode adjustment of the on-chip resistors results in excellent common-mode noise rejection and offset error performance, ensuring high gain accuracy. The well-designed output stage is capable of driving hard-to-drive loads, providing extremely low distortion performance even over very long cables or loads as low as 600 Ω, and is stable under all operating conditions.
The SSM2142 uses a cross-coupled electronically balanced topology that simulates the performance of a fully balanced transformer solution for line drives.
Compared with transformers, the SSM2142 is much smaller than a transformer, has lower distortion, takes up much less board space, and achieves common-mode rejection comparable to the former with fewer components.
The SSM2142 is used in series with the differential receiver SSM2141 to create a complete, reliable solution for audio signal drive and receive applications on long cables. The input common-mode rejection ratio of the SSM2141 at 60Hz is 100dB. Refer to the data sheet for performance specifications for this typical system.
Many car amplifiers need balanced input, you can add a dedicated power module (single power to dual power) and apply.
If you need to use it in a car audio system, be sure to note that the input of this board can only be connected to the CD low level output (RCA end), and can not be connected to the high level output (horn end) of the CD power amplifier, otherwise it will damage the board.
This board needs positive and negative symmetrical power supply, recommended power supply
AES=Audio Engineering Society
EBU=European Broadcasting Union
XLR—Cannon X Series, Latch, Rubber, commonly known as the Cannon, is completely different from the RCA (Lotus Head Interface) analog audio cable that transmits sound directly.
The Balanced Analog Audio interface uses two channels to transmit signals with the same signal and opposite phases.
The receiving device subtracts the two sets of signals, and the interference signal is cancelled out, thereby obtaining a high quality analog signal.
The joint consists of three joints, 1--ground (ground), 2--hot end (+ pole), and 3--cold end (-pole).
Of course, there are also devices that specify 3 for the hot end (+ pole) and 2 for the cold end (-pole), please see the device manual.
The photos of all the products of this department are photographed by themselves, and they are clearly photographed inside and outside. They are unobstructed and have no hidden and technical treatment. They are original and plain.
For the latest products, please refer to the newly opened website of this department. LGHIFIDIY.COM
Am 02.01.22 hat der Verkäufer die folgenden Angaben hinzugefügt: