DCS1800 Overview
The LMX2604 is a fully integrated VCO (Voltage-Controlled Oscillator) IC designed for GSM900/DCS1800/PCS1900 triple-band application. The IC is ideal for use in the transmitter modulation loop by providing extremely small form factor and low phase noise. The IC has two VCOs, one for GSM and a second for DCS/PCS.
DCS1800 Key Features
- 167 dBc/Hz @ 20 MHz offset in GSM band
- 163 dBc/Hz @ 20 MHz offset in DCS band
- 162 dBc/Hz @ 20 MHz offset in PCS band n High output power
- +6 dBm in GSM mode
- +6 dBm in DCS and PCS mode n Low current consumption
- 18 mA in GSM mode
- 15 mA in DCS and PCS mode n +2.6 V to +3.0 V supply voltage n 0.25 µm RF CMOS process n Small 20-pin 4x4 LLP package