Datasheet AD8341 (Analog Devices) - 5

Data Sheet AD8341 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS F F RF RF FIP FIM VPR CM R R CM VPR 24 23 22 21 20 19 QFLP 1 18 IFLP QFLM 2 17 IFLM QBBP 3 AD8341 16 IBBP QBBM 4 TOP VIEW 15 IBBM (Not to Scale) VPS2 5 14 VPS2 VPS2 6 13 DSOP 7 8 9 1 10 1 12 P P P P O O O O
002
FOP FOM R CM CM R CM CM
04700-
NOTES 1. THE EXPOSED PADDLE SHOULD BE SOLDERED TO A LOW IMPEDANCE GROUND PLANE.
Figure 2. 24-Lead Lead Frame Chip Scale Package (LFCSP)
Table 3. Pin Function Descriptions Pin No. Mnemonic Function
1, 2 QFLP, QFLM Q Baseband Input Filter Pins. Connect optional capacitor to reduce Q baseband channel low-pass corner frequency. 3, 4 QBBP, QBBM Q Channel Differential Baseband Inputs. 5, 6, 14, 19, 24 VPS2, VPRF Positive Supply Voltage. 4.75 V − 5.25 V. 7, 8, 11, 12, 20, 23 CMOP, CMRF Device Common. Connect via lowest possible impedance to external circuit common. 9, 10 RFOP, RFOM Differential RF Outputs. Must be ac-coupled. Differential impedance 50 Ω nominal. 13 DSOP Output Disable. Pull high to disable output stage. 15, 16 IBBM, IBBP I Channel Differential Baseband Inputs. 17, 18 IFLM, IFLP I Baseband Input Filter Pins. Connect optional capacitor to reduce I baseband channel low-pass corner frequency. 21, 22 RFIM, RFIP Differential RF Inputs. Must be ac-coupled. Differential impedance 50 Ω nominal. EP Exposed Paddle. The exposed paddle should be soldered to a low impedance ground plane. Rev. B | Page 5 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION RF QUADRATURE GENERATOR I-Q ATTENUATORS AND BASEBAND AMPLIFIERS OUTPUT AMPLIFIER NOISE AND DISTORTION GAIN AND PHASE ACCURACY RF FREQUENCY RANGE APPLICATIONS INFORMATION USING THE AD8341 RF INPUT AND MATCHING RF OUTPUT AND MATCHING DRIVING THE I-Q BASEBAND CONTROLS INTERFACING TO HIGH SPEED DACs CDMA2000 APPLICATION WCDMA APPLICATION EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE