器件名称: U2795B
功能描述: 2.5-GHz Double balanced Mixer
文件大小: 457.73KB 共14页
简 介:Features
Supply-voltage Range: 2.7 V to 5.5 V Single-ended Output, no Balun Required Single-ended Input for RF and LO Excellent Isolation Characteristics Power-down Mode IP3 and Compression Point Programmable 2.5-GHz Operating Frequency
Benefits
Reduced System Costs as only Few External Component (no Balun) are Required Small Package Very Low Current Consumption Easy to Use
Electrostatic sensitive device. Observe precautions for handling.
2.5-GHz Doublebalanced Mixer U2795B
Description
The U2795B is a 2.5-GHz mixer for WLAN and RF telecommunications equipment, e.g., DECT and PCN. The IC is manufactured using Atmel's advanced bipolar technology. A double-balanced approach was chosen to assure good isolation characteristics and a minimum of spurious products. The input and output are single-ended, and their characteristics are programmable. No output transformer or balun is required. Figure 1. Block Diagram
VS 2 RFi 3 P R1 VH VH VR Voltage regulator 8 PD R2 5 IFo 4
So
7 LO i GND
6 VS
1
Rev. 4654A–CELL–01/03
1
Pin Configuration
Figure 2. Pinning
1 2 3 4 8 7 6 5 PU LOi GND IFO
VS RF P SO
Pin Description
Pin 1 2 3 4 5 6 7 8 Symbol VS RFi P SO IFO GND LOi PU Function Supply voltage RF input Progamming port IP3, CP Output symmetry IF output Ground LO input Power-up
2
U2795B
4654A–CELL–01/03
U2795B
Functional Description
Supply Voltage Input Impedance 3rd Order Intercept Point (IP3) Output Impedance and Intercept Point Current Consumption, IS
The IC is de……
