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PDM analog source based on A2B, with 4-channel output
PDM analog source based on A2B, with 4-channel output

U 923M

  • PDM analog source based on A2B, with 4-channel output

  • U 923M is a PDM analog source specifically designed for in-vehicle A2B electroacoustic testing. With its excellent electrical characteristics and superior cost-effectiveness, it is highly suitable for in-vehicle A2B testing, such as testing of in-vehicle head units.

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Description

Specifications

ParameterValue
Full Specifications5V/400mA
Number of USB Shuttle Channels4
External Analog Channels（Default upon Power-on ）4
BusBNC
Product Dimension mm96*33*140
Operating Temperature-20 - 50℃
Net Product Weight0.32kg
Packaging Weight（Product+Packaging）0.53kg
Packaging dimension（mm）250*165*65

AO Channels Parameters

 Idle noise（dBFS）

Sample Ratefs=48kS/s
Max Value-78

PS：[1]Input signal is 0Vrms or input is short-circuited

        [2]A-weighted measurement.

THD（dB）

Sample Ratefs=48kS/s
Max Value-73

PS：[1]Input a 1 kHz, 0.2236 Vrms (−10 dBFS) sine wave signal

        [2]A-weighted measurement

THD+N（dB）

Sample Ratefs=48kS/s
Max Value-70

PS：[1]Input a 1 kHz, 0.2236 Vrms (−10 dBFS) sine wave signal

        [2]A-weighted measurement

Cross talk（dB）

Sample Ratefs=48kS/s
Max Value-70

PS：[1]Input a 1 kHz, 0.2236 Vrms (−10 dBFS) sine wave signal

        [2]A-weighted measurement

Dimension（unit：mm）

屏幕截图 2026-10-21 171019.png


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