RF2638 RF Micro Devices, RF2638 Datasheet
RF2638
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RF2638 Summary of contents
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... W-CDMA Systems • PCS/Cellular CDMA Systems • PHS 1500/WLAN 2400 Systems Product Description The RF2638 is a complete upconverter designed for cel- lular, PCS and W-CDMA applications. This device may also be used to directly BPSK modulate a carrier. The unit operates at 3.0V and is designed as part of the RFMD PCS/Cellular CDMA and W-CDMA Chip Sets. Optimum Technology Matching® ...
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... RF2638 Absolute Maximum Ratings Parameter Supply Voltage Input RF Power Operating Ambient Temperature Storage Temperature Parameter Min. Overall RF Output Frequency Range Spurious Product Rejection Cellular Conversion Gain -2.2 Noise Figure Output IP3 PCS Conversion Gain -3.0 -3.5 Noise Figure Output IP3 W-CDMA ACPR Conversion Gain -2 ...
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... IF bypassing is required. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane OUT RF output pin. Rev B14 030102 RF2638 Interface Schematic BIAS 130 Ω 130 Ω IF- IF+ See pin 1 ...
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... RF2638 6-30 Application Schematic 836MHz Application Schematic 1880MHz OUT 2 OUT 1 ...
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... LO Rev B14 030102 Application Schematic Application Schematic W-CDMA (1950MHz RF2638 100 nH 6.8 nH 0.5 pF PCS OUT CELL OUT 4 W-CDMA OUT ...
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... RF2638 Evaluation Board Schematic - PCS/Cellular (Download Bill of Materials from www.rfmd.com Ω μstrip 270 nH 50 Ω μstrip L2* C3* C4* C6* PCS** 2 1.5 pF Cellular **Board as provided. Evaluation Board Schematic - Dual Output Cellular Out=836MHz, PCS Out=1880MHz, IF=130MHz ...
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... RF=1950MHz, IF=380MHz P1-2 2 VCC 3 GND CON3 T1 T4 2638402, Rev - Note: Board losses: 0.1 dB, Transformer loss: 1.62 dB RF2638 Output Matching RF = 1950 MHz 4 Ω μstrip 9 pF Ω VCC J3 W-CDMA OUT VCC 6-33 ...
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... RF2638 6-34 Evaluation Board Layout PCS/Cellular Board Size 2.0” x 2.0” Board Thickness 0.031”, Board Material FR-4 Rev B14 030102 ...
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... Board Thickness 0.060”, Board Material FR-4, Multi-Layer (Intermediate layers (Ground Plane and Power Plane [V Rev B14 030102 Evaluation Board Layout Dual Output Board Size 2.5” x 1.0” RF2638 ]) are not shown.) CC1 6-35 ...
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... RF2638 Board Thickness 0.060”, Board Material FR-4, Multi-Layer (Intermediate layers (Ground Plane and Power Plane [V 6-36 Evaluation Board Layout W-CDMA Board Size 2.5” x 1.0” ]) are not shown.) CC1 Rev B14 030102 ...