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The Rx ADCs feature 55.1dB SNR and 73.4dBc SFDR at a 1.875MHz input frequency with a 7.5MHz clock frequency. The analog I/Q input amplifiers are fully differential and accept 1.024VP-P full-scale signals. Typical I/Q channel matching is ±0.01° phase and ±0.02dB gain.
The Tx DACs feature 77.2dBc SFDR at fOUT = 620kHz and fCLK = 7.5MHz. The analog I/Q full-scale output voltage is ±400mV differential. The Tx DAC commonmode DC level is programmable from 0.9V to 1.35V. The I/Q channel offset is adjustable. The typical I/Q channel matching is ±0.03dB gain and ±0.08° phase.
The Rx ADC and Tx DAC share a single, 10-bit parallel, high-speed digital bus allowing half-duplex operation for time-division duplex (TDD) applications. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels.
The MAX19705 operates on a single +2.7V to +3.3V analog supply and +1.8V to +3.3V digital I/O supply. The MAX19705 is specified for the extended (-40°C to +85°C) temperature range and is available in a 48-pin, thin QFN package. See a parametric table of the complete family of pin-compatible AFEs.
Key Features
Applications/Uses
- Broadband Access Radio
- Portable Communication Equipment
- Private Mobile Radio (PMR)
Technical Docs
| Data Sheet | 10-bit, 7.5Msps, Ultra-Low-Power Analog Front-End | Aug 12, 2005 | |
| App Note | Equalizing Techniques Flatten DAC Frequency Response |
Click any title below to view the detail page where available.
Description
The MAX19705–MAX19708 evaluation systems (EV systems) consist of a MAX19705–MAX19708 evaluation kits (EV kits), a companion Maxim command module (CMOD232 or CMODUSB) interface board, and software. Order the complete EV system (see the Ordering Information) for comprehensive evaluation of the MAX19705MAX19708 using a personal computer. Order the EV kit if the command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.
The MAX19705–MAX19708 EV kits are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of the MAX19705–MAX19708 analog front-ends (AFEs). The MAX19705–MAX19708 integrate a dual-receive analog-to-digital converter (Rx ADC), a dual-transmit digital-to-analog converter (Tx DAC), a 1.024V internal voltage reference, three low-speed serial DACs, and one low-speed serial ADC. The EV kit boards accept AC- or DC-coupled, differential or single-ended analog inputs for the Rx ADC and include circuitry that converts the Tx DAC differential output signals to single-ended analog outputs. The EV kits include circuitry that generates a clock signal from an AC sine-wave input signal. The EV kits operate from a +3.0V analog power supply, a +1.8V digital power supply, a +3.0V clock power supply, and ±5V bipolar power supplies.
The Maxim command module interface board (CMOD232 or CMODUSB) allows a PC to use its serial or USB port to emulate an SPI 3-wire interface. Windows® 98/2000/XP-compatible software, which can be downloaded from www.maximintegrated.com, provides a user-friendly interface to exercise the features of the MAX19705MAX19708. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display.
Features
- ADC/DAC Sampling Rates from 7.5Msps to 45Msps
- Low Voltage and Power Operation
- Adjustable-Gain, Low-Speed DAC Buffers
- On-Board Clock-Shaping Circuitry
- On-Board Level-Translating I/O Drivers
- Assembled and Tested
- Windows 98/2000/XP-Compatible Software Included
Description
The MAX19705–MAX19708 evaluation systems (EV systems) consist of a MAX19705–MAX19708 evaluation kits (EV kits), a companion Maxim command module (CMOD232 or CMODUSB) interface board, and software. Order the complete EV system (see the Ordering Information) for comprehensive evaluation of the MAX19705MAX19708 using a personal computer. Order the EV kit if the command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.
The MAX19705–MAX19708 EV kits are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of the MAX19705–MAX19708 analog front-ends (AFEs). The MAX19705–MAX19708 integrate a dual-receive analog-to-digital converter (Rx ADC), a dual-transmit digital-to-analog converter (Tx DAC), a 1.024V internal voltage reference, three low-speed serial DACs, and one low-speed serial ADC. The EV kit boards accept AC- or DC-coupled, differential or single-ended analog inputs for the Rx ADC and include circuitry that converts the Tx DAC differential output signals to single-ended analog outputs. The EV kits include circuitry that generates a clock signal from an AC sine-wave input signal. The EV kits operate from a +3.0V analog power supply, a +1.8V digital power supply, a +3.0V clock power supply, and ±5V bipolar power supplies.
The Maxim command module interface board (CMOD232 or CMODUSB) allows a PC to use its serial or USB port to emulate an SPI 3-wire interface. Windows® 98/2000/XP-compatible software, which can be downloaded from www.maximintegrated.com, provides a user-friendly interface to exercise the features of the MAX19705MAX19708. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display.
Features
- ADC/DAC Sampling Rates from 7.5Msps to 45Msps
- Low Voltage and Power Operation
- Adjustable-Gain, Low-Speed DAC Buffers
- On-Board Clock-Shaping Circuitry
- On-Board Level-Translating I/O Drivers
- Assembled and Tested
- Windows 98/2000/XP-Compatible Software Included
Description
The MAX19705–MAX19708 evaluation systems (EV systems) consist of a MAX19705–MAX19708 evaluation kits (EV kits), a companion Maxim command module (CMOD232 or CMODUSB) interface board, and software. Order the complete EV system (see the Ordering Information) for comprehensive evaluation of the MAX19705MAX19708 using a personal computer. Order the EV kit if the command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.
The MAX19705–MAX19708 EV kits are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of the MAX19705–MAX19708 analog front-ends (AFEs). The MAX19705–MAX19708 integrate a dual-receive analog-to-digital converter (Rx ADC), a dual-transmit digital-to-analog converter (Tx DAC), a 1.024V internal voltage reference, three low-speed serial DACs, and one low-speed serial ADC. The EV kit boards accept AC- or DC-coupled, differential or single-ended analog inputs for the Rx ADC and include circuitry that converts the Tx DAC differential output signals to single-ended analog outputs. The EV kits include circuitry that generates a clock signal from an AC sine-wave input signal. The EV kits operate from a +3.0V analog power supply, a +1.8V digital power supply, a +3.0V clock power supply, and ±5V bipolar power supplies.
The Maxim command module interface board (CMOD232 or CMODUSB) allows a PC to use its serial or USB port to emulate an SPI 3-wire interface. Windows® 98/2000/XP-compatible software, which can be downloaded from www.maximintegrated.com, provides a user-friendly interface to exercise the features of the MAX19705MAX19708. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display.
Features
- ADC/DAC Sampling Rates from 7.5Msps to 45Msps
- Low Voltage and Power Operation
- Adjustable-Gain, Low-Speed DAC Buffers
- On-Board Clock-Shaping Circuitry
- On-Board Level-Translating I/O Drivers
- Assembled and Tested
- Windows 98/2000/XP-Compatible Software Included
Description
The MAX19705–MAX19708 evaluation systems (EV systems) consist of a MAX19705–MAX19708 evaluation kits (EV kits), a companion Maxim command module (CMOD232 or CMODUSB) interface board, and software. Order the complete EV system (see the Ordering Information) for comprehensive evaluation of the MAX19705MAX19708 using a personal computer. Order the EV kit if the command module has already been purchased with a previous Maxim EV system, or for custom use in other microcontroller-based (µC) systems.
The MAX19705–MAX19708 EV kits are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of the MAX19705–MAX19708 analog front-ends (AFEs). The MAX19705–MAX19708 integrate a dual-receive analog-to-digital converter (Rx ADC), a dual-transmit digital-to-analog converter (Tx DAC), a 1.024V internal voltage reference, three low-speed serial DACs, and one low-speed serial ADC. The EV kit boards accept AC- or DC-coupled, differential or single-ended analog inputs for the Rx ADC and include circuitry that converts the Tx DAC differential output signals to single-ended analog outputs. The EV kits include circuitry that generates a clock signal from an AC sine-wave input signal. The EV kits operate from a +3.0V analog power supply, a +1.8V digital power supply, a +3.0V clock power supply, and ±5V bipolar power supplies.
The Maxim command module interface board (CMOD232 or CMODUSB) allows a PC to use its serial or USB port to emulate an SPI 3-wire interface. Windows® 98/2000/XP-compatible software, which can be downloaded from www.maximintegrated.com, provides a user-friendly interface to exercise the features of the MAX19705MAX19708. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display.
Features
- ADC/DAC Sampling Rates from 7.5Msps to 45Msps
- Low Voltage and Power Operation
- Adjustable-Gain, Low-Speed DAC Buffers
- On-Board Clock-Shaping Circuitry
- On-Board Level-Translating I/O Drivers
- Assembled and Tested
- Windows 98/2000/XP-Compatible Software Included
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
Key Features
Applications/Uses
- Broadband Access Radio
- Portable Communication Equipment
- Private Mobile Radio (PMR)
Description
The Rx ADCs feature 55.1dB SNR and 73.4dBc SFDR at a 1.875MHz input frequency with a 7.5MHz clock frequency. The analog I/Q input amplifiers are fully differential and accept 1.024VP-P full-scale signals. Typical I/Q channel matching is ±0.01° phase and ±0.02dB gain.
The Tx DACs feature 77.2dBc SFDR at fOUT = 620kHz and fCLK = 7.5MHz. The analog I/Q full-scale output voltage is ±400mV differential. The Tx DAC commonmode DC level is programmable from 0.9V to 1.35V. The I/Q channel offset is adjustable. The typical I/Q channel matching is ±0.03dB gain and ±0.08° phase.
The Rx ADC and Tx DAC share a single, 10-bit parallel, high-speed digital bus allowing half-duplex operation for time-division duplex (TDD) applications. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels.
The MAX19705 operates on a single +2.7V to +3.3V analog supply and +1.8V to +3.3V digital I/O supply. The MAX19705 is specified for the extended (-40°C to +85°C) temperature range and is available in a 48-pin, thin QFN package. See a parametric table of the complete family of pin-compatible AFEs.
Technical Docs
| Data Sheet | 10-bit, 7.5Msps, Ultra-Low-Power Analog Front-End | Aug 12, 2005 | |
| App Note | Equalizing Techniques Flatten DAC Frequency Response |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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