Datenblatt-Suchmaschine für elektronische Bauteile |
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MAX2248 Datenblatt(PDF) 1 Page - Maxim Integrated Products |
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MAX2248 Datenblatt(HTML) 1 Page - Maxim Integrated Products |
1 / 9 page General Description The MAX2248 single-supply, low-voltage power amplifier (PA) IC is designed specifically for applications in the 1880MHz to 1930MHz frequency band. The PA provides a +20dBm (100mW) output power in the highest power mode. The PA includes a digital power control circuit to greatly simplify control of the output power. Four digitally controlled output power levels are provided: from +4dBm to +20dBm. A digital input controls the active or shutdown operating modes of the PA. In the shutdown mode, the current reduces to 0.5µA. The MAX2248 integrates the RF input and inter-stage matching to simplify application of the IC. Temperature and supply-independent biasing are also included to provide stable performance under all operating conditions. The IC operates from a +2.7V to +5V single-supply voltage. No negative bias voltage is required. Current consumption is a modest 105mA at the highest power level. This part is packaged in a 3mm x 3mm, 16-pin TQFN. Ordering Information appears at end of data sheet. 19-100039; Rev 1; 8/17 Benefits and Features ● Frequency Range: 1880MHz–1930MHz ● High +20dBm Output Power ● 2-Bit Digital Power Control: Four Output Levels ● Low 105mA Operating Current ● 0.5μA Low-Power Shutdown Mode Current ● +2.7V to +5V Single-Supply Operation ● Small 3mm x 3mm, 16-Pin TQFN Package Applications ● 1.9GHz DECT (Cordless Phones and Wireless Headsets) Typical Application Circuit/Functional Block Diagram VBIAS Z0 = 50 Ω θ = 15˚ at 1.9GHz D0 D1 RFIN GND GND RFOUT 22nH 8pF OPEN CIRCUIT T2 Z0 = 65 Ω θ = 45˚ at 1.9GHz T1 Z0 = 60 Ω θ = 60˚ at 1.9GHz VCC VCC VCC VCC BIAS AND POWER CONTROL * PLACEMENT OF THESE COMPONENTS IS CRITICAL (SEE APPLICATIONS SECTION) 1pF 1.5nH 1000pF 1000pF 8.2 Ω 8.2 Ω 1pF 220pF* 18pF* T0 Z0 = 50 Ω θ = 18˚ at 1.9GHz MAX2248 SHDN 1000pF 8.2 Ω 220pF* MAX2248 1.9GHz Power Amplifier EVALUATION KIT AVAILABLE |
Ähnliche Teilenummer - MAX2248 |
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Ähnliche Beschreibung - MAX2248 |
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