73M1903-IM/F Maxim Integrated Products, 73M1903-IM/F Datasheet - Page 3

• Manufacturer Part Number: 73M1903-IM/F
• Description: IC MODEM AFE V.22BIS 32-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73M1903-IM/F

• Number Of Channels: 2
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Number Of Bits: -

Figure 7: Rx Passband Response .......................................................................................................... 19
Figure 10: Frequency Response of TX Path for DC to 4 kHz in Band Signal ........................................... 21
Figure 13: 20-Pin TSSOP Pin out .......................................................................................................... 34
Figure 15: 20-Pin TSSOP Mechanical Specifications ............................................................................. 38
Figure 16: NCO Block Diagram .............................................................................................................. 42
Figure 17: PLL Block Diagram ............................................................................................................... 43
Table 4: Kvco versus Settings at Vc=1.6 V, 25 °C .................................................................................. 13
Table 5: PLL Power Down ..................................................................................................................... 14
Table 7: Clock Generation Register Settings for Fxtal = 27 MHz ............................................................ 15
Table 12: Receive Gain ......................................................................................................................... 18
Table 13: Peak to RMS Ratios for Various Modulation Types ................................................................. 23
Table 15: Reference Voltage Specifications ........................................................................................... 29
DS_1903_032
Figures
Figure 1: Effect of the TYPE (FS mode) pin on FS with SckMode = 0 ....................................................... 7
Figure 2: Control Frame Position versus SPOS ........................................................................................ 7
Figure 3: Serial Port Timing Diagram ....................................................................................................... 9
Figure 4: Analog Block Diagram ............................................................................................................. 11
Figure 5: Clock Generation .................................................................................................................... 17
Figure 6: Overall Receiver Frequency Response ................................................................................... 19
Figure 8: RXD Spectrum of 1 kHz Tone ................................................................................................. 20
Figure 9: RXD Spectrum of 0.5 kHz, 1 kHz, 2 kHz, 3 kHz and 3.5 kHz Tones of Equal Amplitudes ......... 20
Figure 11: Serial Port Data Timing ......................................................................................................... 28
Figure 12: 32-Pin QFN Pinout ................................................................................................................ 33
Figure 14: 73M1903 Schematic ............................................................................................................. 35
Figure 14: 32-Pin QFN Mechanical Specifications .................................................................................. 37
Tables
Table 1: Inputs Selected in Regular and Alternate Multiplexer Cycles ....................................................... 4
Table 2: Memory Map .............................................................................................................................. 8
Table 3: PLL Loop Filter Settings ........................................................................................................... 11
Table 6: Examples of NCO Settings ....................................................................................................... 14
Table 8: Clock Generation Register Settings for Fxtal = 24.576 MHz ...................................................... 16
Table 9: Clock Generation Register Settings for Fxtal = 9.216 MHz ........................................................ 16
Table 10: Clock Generation Register Settings for Fxtal = 24.000 MHz .................................................... 17
Table 11: Clock Generation Register Settings for Fxtal = 25.35 MHz ...................................................... 17
Table 14: Serial I/F Timing ..................................................................................................................... 28
Table 16: Maximum Transmit Levels ...................................................................................................... 29
Table 17: Receiver Performance Specifications ..................................................................................... 30
Table 18: Transmitter Performance Specifications ................................................................................. 31
Table 19: 32-Pin QFN Pin Definitions ..................................................................................................... 33
Table 20: 20-Pin TSSOP Pin Definitions ................................................................................................ 34
Table 21: Bill of Materials ....................................................................................................................... 36
Table 22: Ordering Information .............................................................................................................. 39
Rev. 2.1
73M1903 Data Sheet
3