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U2794B_08

器件名称: U2794B_08
功能描述: 1000-MHz Quadrature Demodulator
文件大小: 923.67KB    共15页
生产厂商: ATMEL
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简  介:Features Supply Voltage 5V Very Low Power Consumption 125 mW Very Good Image Rejection By Means of Phase Control Loop for Precise 90° Phase Shifting Duty-cycle Regeneration for Single-ended LO Input Signal Low LO Input Level –10 dBm LO Frequency from 70 MHz to 1 GHz Power-down Mode 25 dB Gain Control Very Low I/Q Output DC Offset Voltage Typically < 5 mV Benefits Low Current Consumption Easy to Implement Perfect Performance for Large Variety of Wireless Applications 1000-MHz Quadrature Demodulator U2794B 1. Description The silicon monolithic integrated circuit U2794B is a quadrature demodulator manufactured using Atmel ’s advanced UHF technology. This demodulator features a frequency range from 70 MHz to 1000 MHz, low current consumption, selectable gain, power-down mode, and adjustment-free handling. The IC is suitable for direct conversion and image rejection applications in digital radio systems up to 1 GHz such as cellular radios, cordless telephones, cable TV, and satellite TV systems. Figure 1-1. VS 5,6 Block Diagram PU 14 IIX 4 II 3 1 2 IX OUTPUT I Power down RFin 7 8 90°Control loop 0° 90° Frequency doubler Duty cycle 15 LO regenerator 17 13 PC 12 19 20 PCX Q OUTPUT QX 11 16,18 10 9 GC GND QQX QQ 4653F–CELL–11/08 2. Pin Configuration Figure 2-1. Pinning SSO20 IX I II IIX V S VS RFin RFXin QQ QQX 1 2 3 4 5 6 7 8 9 10 20 QX 19 18 17 16 15 Q GND LOin GND LOXin 14 PU 13 PC 12 PCX 11 GC Table 2-1. Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 1……
相关电子器件
器件名 功能描述 生产厂商
U2794B_08 1000-MHz Quadrature Demodulator ATMEL
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