DS_1x22_001
73M1822/73M1922 Data Sheet
Tables
Table 1: 73M1902 20-Pin TSSOP Pin Definitions........................................................................................ 8
Table 2: 73M1912 20-Pin TSSOP Pin Definitions...................................................................................... 10
Table 3: 73M1902 32-Pin QFN Pin Definitions.......................................................................................... 11
Table 4: 73M1912 32-Pin QFN Pin Definitions.......................................................................................... 13
Table 5: 73M1822 Pin Definitions ............................................................................................................. 15
Table 6: Isolation Barrier Characteristics at 8 kHz Sample Rate................................................................ 17
Table 7: Absolute Maximum Device Ratings ............................................................................................. 17
Table 8: Recommended Operating Conditions.......................................................................................... 17
Table 9: DC Characteristics ...................................................................................................................... 18
Table 10: Serial Data Port Timing at 8 kHz Sample Rate........................................................................... 19
Table 11: Reference Voltage Specifications.............................................................................................. 19
Table 12: Component Values for the Speaker Driver................................................................................. 20
Table 13: Call Progress Monitor Specification ........................................................................................... 21
Table 14: Line-Side Absolute Maximum Ratings....................................................................................... 22
Table 15: VBG Specifications ................................................................................................................... 22
Table 16: Maximum Transmit Levels......................................................................................................... 22
Table 17: Maximum DC Transmit Levels................................................................................................... 23
Table 18: Transmit Path............................................................................................................................24
Table 19: Receive Path ............................................................................................................................25
Table 20: Transmit Hybrid Cancellation Characteristics............................................................................. 26
Table 21: Receive Notch Filter.................................................................................................................. 26
Table 22: Over-Voltage Detector............................................................................................................... 27
Table 23: Over-Current Detector............................................................................................................... 27
Table 24: Under-Voltage Detector............................................................................................................. 27
Table 25: Over-Load Detector................................................................................................................... 27
Table 26: Reference Bill of Materials for 73M1822/73M1922..................................................................... 30
Table 27: Reference Bill of Materials for Figure 12.................................................................................... 31
Table 28: Compatible Pulse Transformer Sources .................................................................................... 32
Table 29: Transformer Characteristics ...................................................................................................... 32
Table 30: Control and Status Register Map............................................................................................... 33
Table 31: Alphabetical Bit Map ................................................................................................................. 34
Table 32: Clock Generation Register Settings for Fxtal = 27 MHz ............................................................. 43
Table 33: Clock Generation Register Settings for Fxtal = 24.576 MHz....................................................... 43
Table 34: Clock Generation Register Settings for Fxtal = 9.216 MHz......................................................... 43
Table 35: Clock Generation Register Settings for Fxtal = 24.000 MHz....................................................... 44
Table 36: Clock Generation Register Settings for Fxtal = 25.35 MHz......................................................... 44
Table 37: PLL System Timing Controls..................................................................................................... 45
Table 38: Behavior of SCLK under SCKM................................................................................................. 48
Table 39: Signal Control Functions ........................................................................................................... 55
Table 40: Transmit Gain Control ............................................................................................................... 55
Table 41: Receive Gain Control ................................................................................................................ 56
Table 42: Barrier Control Functions........................................................................................................... 59
Table 43: Trans-Hybrid Cancellation ......................................................................................................... 65
Table 44: DAA Control Functions.............................................................................................................. 65
Table 45: Recommended Register Settings for International Compatibility ................................................ 69
Table 46: Line Sensing Control Functions................................................................................................. 72
Table 47: Loopback Modes....................................................................................................................... 75
Table 48: Loopback Controls .................................................................................................................... 76
Table 49: Order Numbers and Packaging Marks....................................................................................... 81
Rev. 1.6
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