RF2870PCBA

RF2870 0 Typical Applications • CDMA Cellular Systems • JCDMA Cellular Systems • AMPS Cellular Systems Product Description -A- CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER • General Purpose Downconverter • Commercial and Consumer Systems • Portable Battery-Powered Equipment 0.10 C A 0.05 C 3.00 2 PLCS The RF2870 is a receiver front-end for CDMA cellular applications. It is designed to amplify and downconvert RF signals, while providing 28.5dB of stepped gain control range. Features include digital control of LNA gain, mixer gain, and power down mode. Another feature of the chip is adjustable IIP3 of the mixer using an off-chip current setting resistor. Noise figure, IP3, and other specs are designed to be compatible with the IS-98B interim standard for CDMA cellular communications. The IC is manufactured on an advanced Silicon Germanium BiCMOS process and is assembled in a 3mmx3mm, 16pin, QFN package. 1.50 TYP 2 PLCS 0.90 0.85 0.70 0.65 0.10 C B 0.05 0.00 3.00 12° MAX 2 PLCS 0.10 C B -B- 1.37 TYP 2 PLCS -CDimensions in mm. SEATING PLANE 2.75 SQ 0.60 0.24 TYP 0.10 C A 0.10 M C A B 0.30 0.18 2 NOTES: 1. Shaded lead is pin 1. 2 Dimension applies to plated terminal: to be measured between 0.20 mm and 0.25 mm from terminal end. PIN 1 ID R.20 1.65 SQ. 1.35 0.50 0.30 0.50 Optimum Technology Matching® Applied Si BJT Si Bi-CMOS InGaP/HBT GaAs HBT SiGe HBT GaN HEMT GaAs MESFET Si CMOS SiGe Bi-CMOS Package Style: QFN, 16-Pin, 3x3 Features • 3mmx3mm LNA/Mixer Solution • Adjustable Mixer Current/IIP3 MIX GAIN MIX IN ISET1 ISET2 • Meets IMD Tests with Three Gain States/Two Logic Control Lines 12 LNA OUT 11 LNA EMITTER 10 LNA IN 9 LNA GAIN 16 IF OUT+ 1 IF OUT- 2 GND 3 LO IN 4 5 VCC 15 14 13 • Integrated TX LO Buffer Amplifier • All Pins ESD Protected Ordering Information RF2870 RF2870 PCBA CDMA Low Noise Amplifier/Mixer 900MHz Downconverter Fully Assembled Evaluation Board Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 6 LO OUT 7 TX BUFF ENABLE 8 ENABLE Functional Block Diagram RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Rev A8 030507 8-1 RF2870 Absolute Maximum Ratings Parameter Supply Voltage Input LO and RF Levels Operating Ambient Temperature Storage Temperature Rating -0.5 to +5.0 +6 -40 to +85 -40 to +150 Unit 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 RF Frequency Range IF Frequency Range Specification Min. Typ. Max. 800 to 900 0.1 2.65 1.8 2.75 400 3.15 VS +0.6 0.4 Unit MHz MHz V V V Condition T = 25°C, VCC =2.75V Power Supply Supply Voltage, VS Logic High Logic Low Cellular Band JCDMA Band LNA (On) Gain Noise Figure Input IP3 Isolation 13.0 +9.0 14.5 1.1 +11.5 23 -3.0 3.0 +25.0 3.5 13.0 2.0 6.5 14.0 +3.0 +14.5 16.0 1.3 dB dB dBm dB dB dB dBm dB dB dB dB dB dBm dBm dB dB Freq=869MHz to 894MHz Freq=832MHz to 870MHz LNA 50 Ω match LNA (Off) Gain Noise Figure Input IP3 Isolation -4.0 +20.0 -2.0 4.0 Mixer - CDMA/JCDMA/FM Gain Noise Figure Input IP3 LO to RF Isolation +1.0 +12.5 36 11.5 0.5 14.5 3.5 7.5 16.0 Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON (TX Buffer OFF) Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF Mixer Preamp ON Mixer Preamp OFF 8-2 Rev A8 030507 RF2870 Parameter Cellular Band JCDMA Band, cont’d Other LO-IF Isolation RF-IF Isolation LNA Out to Mixer In Isolation LO-LNA In Isolation, Any State 30 40 40 35 1 dB dB dB dB pF LNA GAIN, ENABLE, MIX GAIN, TX BUFF ENABLE Specification Min. Typ. Max. Unit Condition Control Lines Input Capacitance Local Oscillator Input Cellular - CDMA or FM Input Power Input Frequency -10 685 1053 784 954 -10 722 942 -4 0 710 1078 809 979 0 760 980 dBm MHz MHz MHz MHz dBm MHz MHz IF=184MHz IF=184MHz IF=85MHz IF=85MHz Cellular - JCDMA Input Power Input Frequency -4 IF=110MHz IF=110MHz TX (Local Oscillator) Buffer Cellular - CDMA or FM Output Power Output Frequency -9.0 685 1053 784 954 -5.5 -2.0 710 1078 809 979 dBm MHz MHz MHz MHz mA dBm MHz MHz mA Single-ended 50 Ω load IF=184MHz IF=184MHz IF=85MHz IF=85MHz Current Consumption Cellular - JCDMA Output Power Output Frequency Current Consumption 2 -9 722 942 -5.5 760 980 2 Single-ended 50 Ω load IF=110MHz IF=110MHz Rev A8 030507 8-3 RF2870 Evaluation Board Current Measurement (Typical Values for VCC =2.75V) ENABLE Gain Control State Power Down LNA On, Mixer Preamp On, TX Buffer Off LNA On, Mixer Preamp Off, TX Buffer Off LNA Bypassed, Mixer Preamp On, TX Buffer Off LNA Bypassed, Mixer Preamp Off, TX Buffer Off 0 1 1 1 1 LNA GAIN X 0 0 1 1 MIX GAIN X 0 1 1 0 TX BUFF ENABLE X 0 0 0 0 IDC (mA)