DescriptionThe MAX2235 is designed as one kind of +3.6V, 1W autoramping power amplifier that can be used in (1)900MHz ISM-band applications; (2)two-way pagers; (3)analog cellular phones; (4)microcellular GSM (power class 5); (5)wireless data networks. Also this device is available in a thermally enhanced 20-pin TSSOP package with a heat slug, and an additional power-saving feature is a shutdown mode that typically reduces supply current below 1A.
Features of the MAX2235 are:(1)800MHz to 1000MHz Operation; (2)High Output Power at 836MHz: +32.5dBm at +5.0V, +30dBm at +3.6V, +29dBm at +3.0V, and +28dBm at +2.7V; (3)+2.7V to +5.5V Single-Supply Operation; (4)Automatic Power-Up/Power-Down Ramp; (5)Direct On/Off Keying (OOK) without Intersymbol Interference or VCO Pulling; (6)37dB Power-Control Range; (7)47% Efficiency; (8)<1A Supply Current in Shutdown Mode; (9)Small 20-Pin TSSOP Package with Heat Slug.
The absolute maximum ratings of the MAX2235 can be summarized as:(1)VCC to GND: -0.3 V to +6.5 V;(2)SHDN to GND: -0.3 V to (VCC + 0.3V);(3)GC to GND: -0.3 V to (VCC + 0.3 V);(4)RF Input Power: +13 dBm (20 mW);(5)Lead Temperature (soldering, 10 sec): +300 °C;(6)Storage Temperature Range: -65°C to +150°C;(7)Junction Temperature: +150°C;(8)Operating Temperature Range: -40°C to +85°C;(9)Continuous Power Dissipation (TA = +70°C) TSSOP: 6.4 W.
The electrical characteristics of MAX2235 can be summarized as:(1)SHDN Logic High: 2.0 V;(2)SHDN Logic Low: 0.5 V;(3)Standby Supply Current: 20 mA;(4)GC Open-Circuit Voltage: 2.0 to 2.4 V;(5)Power Gain: 24 to 26 dB;(6)Gain-Control Range: 37 dB;(7)Auto-Power Ramping-Up Maximum Slope: 1.6 mW/s;(8)Auto-Power Ramping-Down Minimum Slope: -1.3 mW/s;(9)Input VSWR: 1.5:1;(10)Harmonic Suppression: 30 to 38 dBc. If you want to know more information such as the electrical characteristics about it, please download the datasheet in www.seekic.com or www.chinaicmart.com.
MAX2235 Data Sheet
