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MAX7032

Maxim Integrated Products
Part Number MAX7032
Manufacturer Maxim Integrated Products
Description ASK/FSK Transceiver
Published Jun 10, 2009
Detailed Description 19-3685; Rev 0; 5/05 Low-Cost, Crystal-Based, Programmable, ASK/FSK Transceiver with Fractional-N PLL www.datasheet4u.c...
Datasheet PDF File MAX7032 PDF File

MAX7032
MAX7032

Overview
19-3685; Rev 0; 5/05 Low-Cost, Crystal-Based, Programmable, ASK/FSK Transceiver with Fractional-N PLL www.
datasheet4u.
com General Description Features ♦ +2.
1V to +3.
6V or +4.
5V to +5.
5V Single-Supply Operation ♦ Single Crystal Transceiver ♦ User-Adjustable 300MHz to 450MHz Carrier Frequency ♦ ASK/OOK and FSK Modulation ♦ User-Adjustable FSK Frequency Deviation Through Fractional-N PLL Register ♦ Agile Transmitter Frequency Synthesizer with fXTAL / 4096 Carrier-Frequency Spacing ♦ +10dBm Output Power into 50Ω Load ♦ Integrated TX/RX Switch ♦ Integrated Transmit and Receive PLL, VCO, and Loop Filter ♦ > 45dB Image Rejection ♦ Typical RF Sensitivity* ASK: -114dBm FSK: -110dBm ♦ Selectable IF Bandwidth with External Filter ♦ RSSI Output with High Dynamic Range ♦ Autopolling Low-Power Management ♦ < 12.
5mA Transmit-Mode Current ♦ < 6.
7mA Receive-Mode Current ♦ < 23.
5µA Polling-Mode Current ♦ < 800nA Shutdown Current ♦ Fast-On Startup Feature, < 250µs ♦ Small 32-Pin, Thin QFN Package *0.
2% BER, 4kbps Manchester-encoded data, 280kHz IF BW, average RF power MAX7032 The MAX7032 crystal-based, fractional-N transceiver is designed to transmit and receive ASK/OOK or FSK data in the 300MHz to 450MHz frequency range with data rates up to 33kbps (Manchester encoded) or 66kbps (NRZ encoded).
This device generates a typical output power of +10dBm into a 50 Ω load, and exhibits typical sensitivities of -114dBm for ASK data and -110dBm for FSK data.
The MAX7032 features separate transmit and receive pins (PAOUT and LNAIN) and provides an internal RF switch that can be used to connect the transmit and receive pins to a common antenna.
The MAX7032 transmit frequency is generated by a 16bit, fractional-N, phase-locked loop (PLL), while the receiver’s local oscillator (LO) is generated by an integer-N PLL.
This hybrid architecture eliminates the need for separate transmit and receive crystal reference oscillators because the fractional-N PLL allows the transmit frequency to be set wi...


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