motorola MC145540 ADPCM Codec Nov93 free download

File name MC145540_ADPCM_Codec_Nov93.pdf

TABLE OF CONTENTS SECTION 1 GENERAL DESCRIPTION 1.1 INTRODUCTION... 1-1 1.2 FEATURES.. . .. . . . . . . ... .. . . . . . . .. .. . . . . . .. . . . .. .. .. ... .. . . . .. ... ... . . . ... . . .. 1-1 SECTION 2 DEVICE DESCRIPTION 2.1 MC145540 ADPCM CODEC DEVICE DESCRiPTION... 2-1 2.1.1 PCM Codec-Filter Block Description ... . 2-1 2.1.2 ADPCM Transcoder Block Description ... . 2-3 2.1.3 Charge Pump ... . 2-4 2.2 MC145540 FUNCTIONAL DESCRiPTION ... . 2-4 2.2.1 Power Supply Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-4 2.2.1.1 Analog Signal Processing Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-4 2.2.1.2 Digital Signal Processing Power Supply ... 2-4 2.2.2 Analog Interface and Signal Path ... 2-5 2.2.2.1 Transmit Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-5 2.2.2.2 Transmit Digital .. _... __ ... __ ... _... __ .. __ . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-5 2.2.2.3 Receive ... 2-6 2.2.2.3.1 Receive Digital ... 2-6 2.2.2.3.2 Receive Analog Signal Processing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-6