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MAX2244-MAX2246 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX2244-MAX2246 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 14 page General Description The MAX2244/MAX2245/MAX2246 single-supply, low- voltage power amplifiers (PAs) are designed for 20dBm Bluetooth™ Class 1 applications in the 2.4GHz to 2.5GHz band. The MAX2244/MAX2245 deliver a peak output power of 22dBm with greater than 20dB output-power control range. The 22dBm output power compensates for the filter loss between the PA and the antenna, allowing 20dBm to be delivered to the antenna. The MAX2246 pro- vides a peak output power of 20dBm for a 30% reduction in supply current. The PAs integrate a power detector and closed-loop power-control circuitry to provide nearly constant output power over the full range of supply voltage, temperature, and input power level. The voltage at the analog control input precisely controls the output power level. The MAX2244/MAX2245/MAX2246 feature a low-current shutdown mode through a simple logic input. Internal cir- cuitry automatically controls the ramp-up/down of the output power level during turn-on and turn-off to meet Bluetooth spurious emissions requirements. The devices operate from a 3V to 3.6V single supply. The MAX2244/MAX2246 have a power-control voltage range of 0.5V to 2V, and the MAX2245 has a control voltage range of 0.9V to 2.2V. The devices are pack- aged in a miniature ultra chip-scale package (UCSP™), significantly reducing the required board area. Applications Bluetooth Class 1 Radios 802.11 FHSS/HomeRF™ Radios 2.4GHz Cordless Phones Features o 2.4GHz to 2.5GHz Operation o Accurate Closed-Loop Output Power Control Over Full Temperature, Supply, and Input Power Range o Convenient Analog Power-Control Interface o 22dBm Peak Output Power (MAX2244/MAX2245) o 20dBm Peak Output with 30% Reduced Supply Current (MAX2246) o Internal Bandwidth-Limited Power Ramping o 50Ω Integrated Input Match o 0.5µA Shutdown Supply Current o Ultra Chip-Scale Package (1.56mm ✕ 1.56mm) 2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-2204; Rev 2; 8/03 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE BUMP PACKAGE TOP MARK MAX2244EBL-T -40 °C to +85°C 9 UCSP*-9 AAP MAX2245EBL-T -40 °C to +85°C 9 UCSP*-9 AAQ MAX2246EBL-T -40 °C to +85°C 9 UCSP*-9 AAY *UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and environment. See the UCSP Reliability Notice in the UCSP Reliability section of this data sheet for more information. Bluetooth is a trademark of Ericsson Corp. UCSP is a trademark of Maxim Integrated Products, Inc. MATCH MATCH BIAS SHUTDOWN ANALOG INTERFACE MATCH POWER DETECTOR C1 C3 B2 A3 B3 A2 C2 RFIN/ SHDN PC GND GND RFOUT VCC2 VCC1 A1 B1 MAX2244 CONTROL AMP MAX2245 MAX2246 GND GND Functional Diagram Pin Configuration appears at end of data sheet. HomeRF is a trademark of The HomeRF Working Group. |
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