TDK 73M2901/5V - Manuals - manualsarea.com

Page 2 - HARDWARE DESCRIPTION

73M2901/5V Advanced Single Chip Modem 2 HARDWARE DESCRIPTION The 73M2901/5V is designed for a single +5 volt supply with low power consumption (~250mW @ 5 volts). The modem supports automatic standby idle mode. The modem will also accept a request to power down from the DTE via hardware control. No ...

Page 3 - CTS; PIN DESCRIPTIONS

73M2901/5V Advanced Single Chip Modem 3 RESET A reset is accomplished by holding the RESET pin high. To ensure a proper power-on reset, the reset pin must be held high for a minimum of 3 m s. At power on, the voltage at VPD, VPA, and RESET must come up at the same time for a proper reset. ASYNCHRONO...

Page 4 - OSCILLATOR PIN DESCRIPTION

73M2901/5V Advanced Single Chip Modem 4 PIN DESCRIPTIONS (continued) OSCILLATOR PIN DESCRIPTION PIN NAME 32-PIN 44-PIN TYPE DESCRIPTION OSCIN 24 26 I Crystal input for internal oscillator, also input for external source. OSCOUT 23 25 O Crystal oscillator output. DIGITAL INTERFACE PIN DESCRIPTION PIN...

Page 5 - ELECTRICAL SPECIFICATIONS

73M2901/5V Advanced Single Chip Modem 5 ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Operation above maximum rating may permanently damage the device . PARAMETER RATING Supply Voltage -0.5V to +7.0V Pin Input Voltage -0.5V to VPD + 0.5V Storage Temperature -55ºC to 150°C RECOMMENDED OPERATING ...

Page 6 - MAXIMUM TRANSMIT LEVELS

73M2901/5V Advanced Single Chip Modem 6 ELECTRICAL SPECIFICATIONS (continued) MAXIMUM TRANSMIT LEVELS Vref=2.25V; VPA=5.0V Transmit type Maximum differential line level (dBm0) QAM -5.5 DPSK -3.4 FSK -1.2 DTMF (high tone) -6.0 DTMF (low tone) -8.0 DTMF (total) -3.9 Vref=1.25V; VPA=5.0V QAM -9.6 DPSK ...

Page 10 - FIRMWARE DESCRIPTION; FIRMWARE REQUIREMENTS; DTR; For a detailed description of the firmware consult the TDK; FIRMWARE FEATURES; “AT” command set; ring CID data operations

73M2901/5V Advanced Single Chip Modem 10 FIRMWARE DESCRIPTION 2 An “AT” command interpreter provides command and configuration of the 73M2901/5V. This provides the user a uniform interface to control the modem in embedded applications. The signal processing is performed by obtaining data from and pr...

Page 11 - DESIGN CONSIDERATIONS; LAYOUT CONSIDERATIONS; F electrolytic; TELEPHONE LINE INTERFACE; TDK73M2901 Demo boards use the line interface shown on the

73M2901/5V Advanced Single Chip Modem 11 DESIGN CONSIDERATIONS TDK Semiconductor’s single chip modem solutions include all the basic modem functions. This makes these devices adaptable to a variety of applications. Unlike digital logic circuitry, modem designs must contend with precise frequency tol...

Page 12 - Recommended Line Interface; Recommended Schematics Arrangement

73M2901/5V Advanced Single Chip Modem 12 Telephone Line T1 5.1K R4 R3 21K R1 TXAP RXA TXAN 475 C1 0.033m Midcom 671-8005 Recommended Line Interface R2 21K PRI R4 470 R3 5.1K C4 100nF GND JP1 HEADER 10 1 2 3 4 5 6 7 8 9 10 R1 10K GND VCC GND R13 nc Y1 11.0592 MHZ U1 2901_P32 1 2 3 4 5 6 7 8 9 10 11 1...

Page 13 - TYPICAL USA APPLICATION SCHEMATICS

73M2901/5V Advanced Single Chip Modem 13 TYPICAL USA APPLICATION SCHEMATICS

Page 16 - MECHANICAL DRAWINGS

73M2901/5V Advanced Single Chip Modem 16 MECHANICAL DRAWINGS 32-Pin PLCC

Page 18 - PACKAGE PIN DESIGNATIONS; ORDERING INFORMATION; PART DESCRIPTION; 2-Pin Plastic Leaded Chip Carrier; TDK Semiconductor Corporation

73M2901/5V Advanced Single Chip Modem 18 PACKAGE PIN DESIGNATIONS (Top View) 32-Lead PLCC 44-Pin TQFP 73M2901-32IH/5 73M2901-IGT/5 ORDERING INFORMATION PART DESCRIPTION ORDER NUMBER PACKAGING MARK 73M2901/5V 32-Pin Plastic Leaded Chip Carrier 73M2901-32IH/5 73M2901-32IH 73M2901/5V 44-Pin Thin Quad F...

Page 19 - Removed 5V pin callouts from package drawing.

73M2901/5V Advanced Single Chip Modem 19 August 22, 2001 Removed 5V pin callouts from package drawing. August 30, 2001 Updated Mechanical Drawing