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Maxim > Products > [Wireless and RF] 
MAX2900, MAX2901, MAX2902, MAX2903, MAX2904
200mW Single-Chip Transmitter ICs for 868MHz/915MHz ISM Bands


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 416kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX2900–MAX2904 complete single-chip 200mW transmitters are designed for use in the 868MHz/915MHz frequency bands. The MAX2900/MAX2901/MAX2902 are compliant with the FCC CFR47 part 15.247 902MHz to 928MHz ISM-band specifications. MAX2903/MAX2904 are compliant with the ETSI EN330-220 specification for the European 868MHz ISM band.

These transmitter ICs offer a high level of integration while minimizing the number of external components. This is achieved by full integration of the transmit modulator, power amplifier, RF VCO, 8-channel frequency synthesizer, and baseband PN sequence lowpass filter. By filtering the BPSK modulation, the spurious emissions are reduced, enabling up to eight independent transmit channels in the U.S. ISM band. Inputs are provided for spread-spectrum BPSK, ASK, and OOK. FM can be achieved by directly modulating the VCO. The devices are intended primarily for use with an external differential antenna.

An evaluation kit is available:  MAX2900EVKIT, MAX2901EVKIT, MAX2902EVKIT, MAX2903EVKIT, MAX2904EVKIT  

Key Features   Applications/Uses
  • Versions for U.S. 902MHz to 928MHz Band and European 868MHz Band
  • -7dBm to +23dBm Adjustable Differential RF Output Power
  • +23dBm Output Power at 4.5V, +20dBm Output Power at 3.0V
  • Support BPSK, OOK, ASK, and FM Modulations
  • Modulation Filter for Direct Sequence BPSK up to 8Mchips/s
  • Fully Integrated VCO with On-Chip Tank
  • Extremely Low Frequency Pulling for OOK Modulation (typ 60kHz peak, 5kHz RMS)
  • Integrated Frequency Synthesizer for up to 8 Channels (MAX2900)
  • +2.7V to +4.5V Supply Operation
  • Small 28-Pin QFN Package with Exposed Pad (5mm x 5mm)

 
  		• Automatic Meter Reading
  		• Wireless Building Control
  		• Wireless Data Networks
  		• Wireless Security Systems/Alarms
  		• Wireless Sensors

Key Specifications:  ISM RF Transmitters
Part Number Applications Band/ Freq.
(MHz)		 Features Footprint
(mm x mm)		 Smallest Available Pckg.
(mm2)		 Package/Pins Price
max w/pins See Notes
MAX2900  ISM 902 to 928
+23dBm Output Power at 4.5V, +20dBm at 3.0V
Integrated Frequency Synthesizer For Up to 8 Channels
Integrated VCO with On-Chip Tank
Supports Spread-Spectrum BPSK, ASK, OOK, and FM
 5.0 x 5.0 26
QFN/28
TQFN/28
 $3.34 @1k
MAX2901  ISM 902 to 928
+23dBm Output Power at 4.5V, +20dBm at 3.0V
Integrated Frequency Synthesizer For Up to 2 Channels
Integrated VCO with On-Chip Tank
Supports Spread-Spectrum BPSK, ASK, OOK, and FM
QFN/28
TQFN/28
 $3.34 @1k
MAX2902  ISM 902 to 928
+23dBm Output Power at 4.5V, +20dBm at 3.0V
Integrated VCO with On-Chip Tank
Off-Chip Synthesizer
Supports Spread-Spectrum BPSK, ASK, OOK, and FM
QFN/28
TQFN/28
 $3.20 @1k
MAX2903 
ISM
ISM (Europe)
 867 to 870
+23dBm Output Power at 4.5V, +20dBm at 3.0V
Integrated Frequency Synthesizer For Up to 2 Channels
Integrated VCO with On-Chip Tank
Supports Spread-Spectrum BPSK, ASK, OOK, and FM
QFN/28
TQFN/28
 $3.34 @1k
MAX2904 
ISM
ISM (Europe)
 867 to 870
+23dBm Output Power at 4.5V, +20dBm at 3.0V
Integrated VCO with On-Chip Tank
Off-Chip Synthesizer
Supports Spread-Spectrum BPSK, ASK, OOK, and FM
QFN/28
TQFN/28
 $3.20 @1k
See All ISM RF Transmitters (10)

Diagram
MAX2900: Pin Configuration
Pin Configuration

MAX2901, MAX2903: Pin Configuration
Pin Configuration

MAX2902, MAX2904: Pin Configuration
Pin Configuration

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    Document Ref.: 19-2145; Rev 2; 2008-03-18
    This page last modified: 2009-10-15


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