AS3802

Preliminary Data Sheet AS3802 CDMA/FM RECEIVE AGC AMPLIFIER AS3802 Austria Mikro Systeme International AG Key Features r r r r r r r r Supports dual mode operation. -50 to +50db gain control guaranteed. Single 3.6V supply. Temperature and supply stabilized. Power down feature. 80MHz to 250MHz operation. Silicon BiCMOS process. Miniature surface mount 16 pin, 150 mil SSOP package. General Description The AS3802 is a gain controlled amplifier designed for the receive section of dual mode CDMA/FDM, TDMA/FDM or FM/FDM cellular phones. Key specifications like gain range noise figure, IP3, temperature range and other specifications are designed to be in line with the IS-95 Standard for CDMA cellular communications. The circuit is designed for narrow band IF applications but can also be used in wideband applications. Applications Compatibility The AS3802 is designed to be functionally or/and pin compatible to the following products: r r r r RF9907 Q5500 CXA3001N (RF Micro Devices), pin compat. (Qualcomm), (Sony) pin compat. r r r r Digital cellular systems with receiving methods: CDMA/FDM, TDMA/FDM, FM/FDM and TDMA/TDD. Examples: IS-95 CDMA, IS-54 DAMPS, AMPS, PWT. Cordless phones analog/digital. General purpose linear IF amp’ s. WLL / WLAN CDMA+ CDMAGND FM+ FMGND SEL PWD VCTRL VCC VCC VCC GND GND OUT+ OUT- 1 2 16 15 14 13 12 11 10 9 AS3802 SSOP-16 3 4 5 6 7 8 Rev. C 1/9 Nov. 98 Preliminary Data Sheet AS3802 This document contains information on products under development. Austria Mikro Systeme Intl. AG reserves the right to change or discontinue this product without notice. Absolut Maximum Ratings (non operating) Symbol VDD GND Vin Iin Parameter Positive Supply Voltage Analog Ground Voltage at every Input Pin) Input Current (into any pin except supply pins and except low leakage pin) Input Current into Low Leakage Pin Humidity Noncondensing Electrostatic Discharge Storage Temperature Lead Temperature -55 1000 125 260 V deg C deg C 3) min -0.5 0 Gnd-0.5 -40 max 7 0 VDD+0.5 40 Unit V V V mA Note Iin_15 H ESD Tstg Tlead -25 25 mA 1) 2) Notes: 1) Defined DIN 40040 cond. F. 2) HBM: R=1.5kOhm, C=100pF. Open collector outputs have less ESD protection because the protection diode to the positive supply cannot be implemented (The output swing is higher than Vpos.+0.7V). 3) 260 deg C for 10 sec (Reflow and wave soldering), 360 deg C for 3 sec (Manual soldering). The above figures conform to CMOS standard for low leakage application. Recommended Operating Conditions Symbol VDD GND Idd Tamb Parameter Positive Supply Voltage Analog Ground Supply Current Ambient Temperature Range, Operating Range -30 0 min typ 3.6 0 10 0 14 +80 max Unit V V mA deg C 2) Note 1) Notes: 1) 3.6V ± 5%. 2) Measured at pin VDD, see test schematic, no signal. Rev. A 2/9 Jul 98 Preliminary Data Sheet AS3802 RX AGC Electrical Characteristics Parameter Frequency Range Maximum Gain Minimum Gain Noise Figure Input IP3 Output CP1 Gain Var. in +/-630 kHz bandwidth centered at 85MHz Gain Slope Linearity (over any 6dB segment) Gain Control Voltage Range 6.5 -7 -14 -25 +/-0.05 +/- 3 0.2-3 50 -50 min typ 80-250 max Unit MHz dB dB dB dBm dBm dBm dB dB V -32 to +72 deg.C 0.2V min Gain 3.0V max Gain ref. To GND Note f-3dB=250MHz VG=3V VG=0.2V max Gain min Gain FM min Gain CDMA 1) Gain Control Input Impedance Current Consumption Input Resistance Output Impedance 16 10 1k diff. 850 sing. 500 14 kΩ mA Ω Ω Ω CDMA FM 500 Ω differential outside (Reff. =250Ω ) CDMA to FM Isolation Power Down Mode 30 dB 2) Notes: Measurements refered to 85MHz. 1) Two tone measurement is used. f1=86MHz; f2=87MHz; SEL=High for CDMA mode, SEL=Low for FM mode. 2) High≡Active, Low≡Power save, Input impedance ≥ 16kΩ . Rev. A 3/9 Jul 98 Preliminary Data Sheet AS3802 Pin Description Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol CDMA+ CDMAGND FM+ FMGND SEL PWD OUTOUT+ GND GND VCC VCC VCC VCTRL Function CDMA Positive Differential Input CDMA Negative Differential Input Analog Ground Single Ended Analog Input Analog Ground Connection (RX FM Input Reference) Analog Ground Select, CMOS Input VSELECT>=3.4V, CDMA Mode Select VSELECT=3.4V, RX-AGC Active VPWD-RX5kΩ ZL=500Ω RB=500Ω * L=Choke, ω .L>>RB* ZLeff=250Ω *Note: Z1 can be a resistor or a choke. If it is a resistor Z1=R1=250Ω then RB is not used. If it is a choke, ω .L>>RB and RB=500Ω . Zin=850Ω (typ) AC GND is defined as FM- in the package pin definition. Rev. A 5/9 Jul 98 Preliminary Data Sheet Transfer Characteristic FM RX AGC 80,00 AS3802 60,00 40,00 20,00 Gain [dB] Gain, 25 degC 0,00 -20,00 0,50 1,00 1,50 2,00 2,50 3,00 3,50 Gain, 75 degC Gain, -35 degC -40,00 -60,00 -80,00 Vcntrl [V] CDMA RX AGC 80,00 60,00 40,00 20,00 Gain [dB] Gain, 25 degC 0,00 -20,00 0,50 1,00 1,50 2,00 2,50 3,00 3,50 Gain, 75 degC Gain, -35 degC -40,00 -60,00 -80,00 Vcntrl [V] Rev. A 6/9 Jul 98 Preliminary Data Sheet AS3802 Intermodulation Performance RX CDMA IIP3 -10 -60 -15 -20 -25 -70 -30 -80 -35 -90 -40 -45 -50 -55 Gain [dB] -100 Pin=const. = -26 dBm Pout=const. = -41 dBm -110 Pim [dBm] IIP [dBm] IIP3 Pim -50 -40 -30 -20 -10 0 10 20 30 40 -50 -40 -60 -120 RX FM IIP3 0 -60 -5 -10 -15 -20 IIP3[dBm] -25 -30 Pin=const. = -26 dBm -35 -40 -45 -50 Gain [dB] Pout=const. = -41 dBm -110 -120 -130 -140 -50 -40 -30 -20 -10 0 10 20 30 40 -50 -60 -70 -80 -90 -100 -40 Pim [dBm] IIP3 Pim Rev. A 7/9 Jul 98 Preliminary Data Sheet Compression Behaviour Output CP1 44 43 42 41 Pout [dBm] Gain [dB] -15 40 -20 39 -25 38 37 36 35 -90 -80 -70 -60 Pin [dBm] -50 -40 -30 -30 -35 -40 -1 dB 0 -5 -10 AS3802 Pout, RX CDMA Gain, RX CDMA Gain, RX FM Pout, RX FM Rev. A 8/9 Jul 98 Preliminary Data Sheet AS3802 Typical Application @ 85MHz The information furnished herein by Austria Mikro Systeme International is substantially correct and accurate. However, Austria Mikro Systeme International shall not be liable to licensee or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data. No obligation or liability to licensee or any third party shall arise or flow out of Austria Mikro Systeme International’ rendering of technical or other services. s Austria Mikro Systeme International makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Austria Mikro Systeme International reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with Austria Mikro Systeme International for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical lifesupport or life-sustaining equipment are specifically not recommended without additional processing by Austria Mikro Systeme International for each application. Copyright @ 1998, Austria Mikro Systeme International AG, Schloß Premstätten, 8141 Unterpremstätten, Austria. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. Rev. A 9/9 Jul 98