Datasheet ADL5390 (Analog Devices) - 6

ADL5390 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS RF Q Q I I RF P M M P CM IN IN IN IN CM 24 23 22 21 20 19 VPRF 1 18 VPRF QFLP 2 17 IFLP QFLM 3 ADL5390 16 IFLM QBBP 4 TOP VIEW 15 IBBP (Not to Scale) QBBM 5 14 IBBM VPS2 6 13 DSOP 7 8 9 10 11 12 P P P M P P O O O O O O CM CM RF RF CM CM NOTES 1. THE EXPOSED PADDLE ON THE UNDERSIDE OF THE PACKAGE SHOULD BE SOLDERED
02 -0
TO A LOW THERMAL AND ELECTRICAL
954
IMPEDANCE GROUND PLANE.
04 Figure 2. LFCSP Pin Configuration
Table 3. Pin Function Descriptions Pin No. Mnemonic Description
2, 3 QFLP, QFLM Q Baseband Input Filter Pins. Connect optional capacitor to reduce Q baseband gain control channel low- pass corner frequency. 4, 5 QBBP, QBBM Q Channel Differential Baseband Gain Control Inputs. Typical common-mode bias level of 0.5 V. 6, 1, 18 VPS2, VPRF Positive Supply Voltage. VP of 4.75 V to 5.25 V. 7, 8, 11, 12, CMOP, CMRF Device Common. Connect via lowest possible impedance to external circuit common. 19, 24 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. Connect to common for normal operation. 14, 15 IBBM, IBBP I Channel Differential Baseband Gain Control Inputs. Typical common-mode bias level of 0.5 V. 16, 17 IFLM, IFLP I Baseband Input Filter Pins. Connect optional capacitor to reduce I baseband gain control channel low- pass corner frequency. 20, 21 INPI, INMI I Channel Differential RF Inputs. Must be ac-coupled. 250 Ω impedance to common on each pin. These inputs can be driven single-ended without any performance degradation. 22, 23 INMQ, INPQ Q Channel Differential RF Inputs. Must be ac-coupled. 250 Ωimpedance to common on each pin. These inputs can be driven single-ended without any performance degradation. Exposed GND The exposed paddle on the underside of the package should be soldered to a low thermal and electrical Paddle impedance ground plane. Rev. A | Page 6 of 23 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 General Structure Theory of Operation Noise and Distortion Applications Information Using the ADL5390 RF Input and Matching RF Output and Matching Driving the I-Q Baseband Gain Controls Interfacing to High Speed DACs Generalized Modulator Vector Modulator Vector Modulator Example—CDMA2000 Quadrature Modulator RF Multiplexer Evaluation Board Outline Dimensions Ordering Guide