RF2690

Preliminary RF2690 W-CDMA RECEIVE AGC AND DEMODULATOR 7 Typical Applications • W-CDMA Systems Product Description The RF2690 is an integrated complete IF AGC amplifier and quadrature demodulator designed for the receive section of W-CDMA applications. It is designed to amplify received IF signals, while providing 70dB of gain control range, a total of 90dB gain, and demodulation to baseband I and Q signals. This circuit is designed as part of RFMD’s single mode W-CDMA chipset, which includes the RF9678 as modulator and IF AGC and the RF2638 as upconvertor. The IC is manufactured on an advanced 25GHz FT Silicon Bi-CMOS process, and is packaged in a 20-pin, 4mmx4mm, leadless chip carrier. 1.00 0.90 0.60 0.24 typ 4.00 sq. 0.65 0.30 4 PLCS 3 0.20 2.10 sq. 12° MAX 0.05 Dimensions in mm. 0.75 0.50 0.50 Note orientation of package. 0.23 0.13 4 PLCS 7 QUADRATURE DEMODULATORS NOTES: 1 Shaded lead is Pin 1. 2 Pin 1 identifier must exist on top surface of package by identification mark or feature on the package body. Exact shape and size is optional. 3 Dimension applies to plated terminal: to be measured between 0.02 mm and 0.25 mm from terminal end. 4 Package Warpage: 0.05 mm max. 5 Die Thickness Allowable: 0.305 mm max. Optimum Technology Matching® Applied Package Style: LCC, 20-Pin, 4x4 üSi Bi-CMOS Si BJT GaAs HBT SiGe HBT VGC2 VGC1 GaAs MESFET Si CMOS Features • Digitally Controlled Power Down Mode • 2.7V to 3.3V Operation 14 I OUT+ 13 I OUT- 20 NC 2 NC 3 1 17 18 IF+ IF- Gain Control • Digital LO Quadrature Divide-by-4 • IF AGC Amp with 70dB Gain Control • 80dB Maximum Voltage Gain W-CDMA IN+ 4 I/Q W-CDMA IN- 5 Cal 15 ENCAL 16 FCLK 12 Q OUT+ Div 4 Mode Control & Biasing 11 Q OUT- 19 VREF2V 6 VCC 8 LO 7 GND 9 EN WUP 10 EN RX Ordering Information RF2690 RF2690 PCBA W-CDMA Receive AGC and Demodulator Fully Assembled Evaluation Board Functional Block Diagram RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com Rev A4 010918 7-39 RF2690 Absolute Maximum Ratings Parameter Supply Voltage Power Down Voltage (VPD) Input RF Power Ambient Operating Temperature Storage Temperature Preliminary Rating -0.5 to +5 -0.5 to VCC +0.7 +3 -40 to +85 -40 to +150 Unit VDC VDC dBm °C °C Caution! ESD sensitive device. RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s). Parameter Overall Inputs and AGC IF Frequency W-CDMA IF Input Impedance Specification Min. Typ. Max. Unit Condition Temp=25°C, VCC =3V, ZLOAD =60kΩ diff., LO=760MHz@-10dBm, ZSOURCE =500 Ω diff. 190 1200 2400 MHz Ω Ω Single-ended Balance. An external resistor across the differential input is used to define the input impedance. 7 QUADRATURE DEMODULATORS LO Frequency LO Input Level LO Input Impedance Maximum Voltage Gain -20 76 760 -10 50 81 0 MHz dBm Ω dB Single-ended. Pin-to-Pin voltage gain. Note: 10dB additional voltage gain in input match 50 Ω to 500 Ω. Minimum Voltage Gain Gain Variation versus VCC and Temperature Gain Control Voltage Input IP3 5 -3 0.3 12 +1 15 +3 2.4 dB V Defined with external 10kΩ resistor in series with VGC1 pin. Analog gain control. Blockers at 10MHz and 20MHz offset. Maximum Gain. VGC =2.4V Minimum Gain. VGC =0.3V Maximum Gain. VGC =2.4V Measured differentially. Out of band blocker causing 1dB of inband gain compression. Blocker at 5MHz. Maximum Gain. VGC =2.4V Minimum Gain. VGC =0.3V Butterworth third order, FC 2.5M+ 10% Calibrated. FCLK =13MHz A measure of IQ gain match and IQ quadrature accuracy. Measured for baseband frequencies 100kHz to 2.5MHz. Resistive Load Impedance. Differentially across pins. Capacitive Load Impedance. To ground. VGC =0.3V, PIN =-40dBm VGC =0.3V, PIN =-40dBm -52 Noise Figure Inband Output 1dB Compression Compression 1.5 -48 -5 5 2.0 0 dBm dBm dB VP-P -48 -17 Baseband 3dB Bandwidth Sideband Suppression 2.25 2.5 2.75 27 dBm dBm MHz dB DC Offset Baseband External Load 20 +40 60 5 mV kΩ pF V dB degree Output DC Voltage IQ Amplitude Balance IQ Phase Balance VCC -1.3 VCC -1.6 +0.2 +2 VCC -1.9 +0.5 +5 7-40 Rev A4 010918 Preliminary Parameter Auto Calibration FCLK Input Frequency1 FCLK Signal Level FCLK Pin Input Impedance Calibration Time Current, Auto Cal. Current, Once Auto Cal Finished CALEN 13 0.4 20 200 1 1 TBD 2.7 3.0