器件名称: U2790B
功能描述: 1000-MHz QUADRATURE MODULATOR
文件大小: 228.11KB 共15页
简 介:Features
Supply Voltage 5 V (Typically) Very Low Power Consumption: 150 mW (Typically) for -1 dBm Output Level Very Good Sideband Suppression by Means of Duty Cycle Regeneration of the LO
Input Signal Phase Control Loop for Precise 90° Phase Shifting Power-down Mode Low LO Input Level: -10 dBm (Typically) 50-W Single-ended LO and RF Port LO Frequency from 100 MHz to 1 GHz SO16 Package01/03
Benefits
No External Components Required for Phase Shifting Adjustment Free, Hence Saves Manufacturing Time Only Three External Components Necessary, this Results in Cost and Board Space
Saving
1000-MHz Quadrature Modulator U2790B
Electrostatic sensitive device. Observe precautions for handling.
Description
The U2790B is a 1000-MHz quadrature modulator using Atmels advanced UHF process. It features a frequency range from 100 MHz up to 1000 MHz, low current consumption, and single-ended RF and LO ports. Adjustment-free application makes the direct converter suitable for all digital radio systems up to 1000 MHz, e.g., GSM, ADC, JDC. Figure 1. Block Diagram
SPU BBAI BBAI
8 7 6 Power up
PU
1
VS
5,4
LO i Phadj BBBi BBBI
12 15 16 9 10
Duty cycle regenerator
Frequency doubler
0° 90°
90°/control loop
S
RFO
3
2,11,13,14
GND
Rev. 4583A–CELL–01/03
1
Pin Configuration
Figure 2. Pinning SO16
PU
GND RFO VS VS SPD BBAi BBAi
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
Phadj Phadj GND GND LOi GND BBBi BBBi
Pin Description
Pin 1 2, 11, 13, 14 3 4, 5 6 7 8 9 10 12 15, 16 Symbo……
