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TLV320ADC3140: 配置4通道输出时第二通道没有I2S数据输出,是硬件问题还是配置问题?

Part Number: TLV320ADC3140
Other Parts Discussed in Thread: PCMD3180

ADC3180功能正常的程序放在ADC3140产品后只有channel1,channel3,channel4有数据,channel 2没有数据产生。对比3180,3140器件的参考原理图上PDMIN1和PDMIN2是共用一条时钟线的,3180的四条时钟线是独立的。是不是手册的参考原理图不能实现四通道同时输出?