SSM2142S-REEL 音频放大器SOIC-16封装

The SSM2142 is an integrated differential-output buffer amplifier that converts a single-ended input signal to a balanced output signal pair with high output drive. By utilizing low noise thermally matched thin film resistors and high slew rate amplifiers, the SSM2142 helps maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Excellent rejection of common-mode noise and offset errors is achieved by laser trimming of the onboard resistors, assuring high gain accuracy. The carefully designed output stage of the SSM2142 is capable of driving difficult loads, yielding low distortion performance despite extremely long cables or loads as low as 600 Ohm, and is stable over a wide range of operating conditions.

Based on a cross-coupled, electronically balanced topology, the SSM2142 mimics the performance of fully balanced transformer-based solutions for line driving. However, the SSM2142 maintains lower distortion and occupies much less board space than transformers while achieving comparable common-mode rejection performance with reduced parts count.

The SSM2142 in tandem with the SSM2141 differential receiver establishes a complete, reliable solution for driving and receiving audio signals over long cables. The SSM2141 features an Input Common-Mode Rejection Ratio of 100 dB at 60 Hz. Specifications demonstrating the performance of this typical system are included in the data sheet.

SSM2142S-REEL 功能框图

Functional Block Diagram for SSM2142

SSM2142S-REEL 技术指标

Gain Error (%)	0.7%	Slew Rate (V/ms)	15
PSRR (dB)	80dB	Product Description	Balanced Line Driver

SSM2142 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
SSM2142P	量产	8 ld PDIP	8	待定
SSM2142PZ	量产	8 ld PDIP	8	待定
SSM2142S	量产	16 ld SOIC - Wide	16	待定
SSM2142S-REEL	量产	16 ld SOIC - Wide	16	待定
SSM2142SZ	量产	16 ld SOIC - Wide	16	待定
SSM2142SZ-REEL	量产	16 ld SOIC - Wide	16	待定