Variable Gain Amplifier 2AM Series Product Features Application • Multi-chip hybrid module • MESFET&HBT chip on board • 2 stage Gain Block amplifier Which includes a digital attenuator • 6-bit RF digital step attenuator covering a 31.5dB attenuation range in 0.5dB steps • Module system simplification • No External Matching Circuit Needed • Cutom Design Available • Alumina Substrate • Pb Free / RoHS Compliant • Repeater • Base Station • RF Sub-Systems • IMT, WCDMA, UMTS, Wimax, Wibro Package : CP-5CS Description Variable Gain Amplifier 2AM Series can be used in any applications that need Gain Control according to Input Signal Level. Also, 2AM Series can be applied to various frequency system combined with GaAs MESFET or InGaP HBT MMIC. 2AM series are a hybrid module which has 2-stage Amplifier chip and Attenuator chip mounted on a Ceramic board. Attenuator is 0.5dB step 6-bit digital attenuator which has 31.5dB of total attenuation. Original version use GaAs MESFET amplifiers but RFHIC can customize the amplifier IC used in the hybrid to be either HBT, E-pHEMT or any other technology depending on specification requirements. Electrical Specifications Part Number Frequency (MHz) Gain (dB) NF (dB) P1dB (dBm) OIP3 (dBm) Vd (V) Id (mA) 2AM0405S 50~200 28 3 21 39 5 240 2AM0905S 824~960 25 3 21 39 5 240 2AM2105S 1920~2170 17 3 21 39 5 240 2AM0921S 400~1500 25.5 6 21 39 5 190 2AM2121S 1700~2300 22 6 21 39 5 190 * 50Ω RF Digital Attenuator insertion. 6-bit Flexible serial programming interfaces Absolute Maximum Ratings PARAMETER Rating Operating Case Temperature (℃) -40 ~ +85 Storage Temperature (℃) -40 ~ +150 Supply Voltage (V) +6 Remark Functional Diagram ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 1/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series <2AM2121S RF data> <S-parameter> <Output IP3@1700MHz at 10dBm output level > ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 2/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series <Output IP3@2000MHz at 10dBm output level > <Output IP3@2300MHz at 10dBm output level > ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 3/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series Variable Attenuator Accuracy (1700MHz) Attenuation Steps Data Attenuation Steps Data 16dB -16.20dB 2dB -2.13dB 8dB -8.18dB 1dB -1.06dB 4dB -4.13dB 0.5dB -0.51dB S-parameter at Full Attenuation (31.5dB) Attenuation value: -30.83dB Variable Attenuator Accuracy (2000MHz) Attenuation Steps Data Attenuation Steps Data 16dB -16.21dB 2dB -2.15dB 8dB -8.20dB 1dB -1.10dB 4dB -4.22dB 0.5dB -0.51dB S-parameter at Full Attenuation (31.5dB) Attenuation value: -30.97dB ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 4/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series Variable Attenuator Accuracy (2300MHz) Attenuation Steps Data Attenuation Steps Data 16dB -16.01dB 2dB -2.18dB 8dB -8.03dB 1dB -1.00dB 4dB -4.02dB 0.5dB -0.49dB S-parameter at Full Attenuation (31.5dB) Attenuation value: -30.96dB 2AM2121S Attenuation setting variation 35.5 30.5 Real Value(dB) 25.5 20.5 15.5 10.5 5.5 .5 .5 31 .5 29 30 .5 .5 28 27 .5 .5 .5 .5 .5 26 25 24 23 22 .5 .5 .5 .5 21 20 19 .5 17 18 .5 .5 16 15 .5 .5 14 13 .5 .5 12 9. .5 5 5 8. 11 5 7. 10 5 5 6. 5 4. 5. 5 5 2. 1. 3. 5 5 0. 0.5 Atten Setting(dB) ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 5/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series Serial Data Input Timing DATA MSB LSB CLOCK tES tCS tCH tEW LE 6-bit Program Registor Map B5 C16 MSB B4 C8 B3 C4 B2 C2 B1 C1 B0 C0.5 LSB Digital Interface Specification Ta = 25℃, Vd3 = +3Vdc, Pin 8 = +3Vdc PARAMETER MIN TYP MAX UNIT 10 MHz Serial data clock frequency Logic High Input : VH (pins 2, 3, 4) 0.7xVd3 V Logic Low Input : VL (pins 2, 3, 4) 0.3xVd3 V Data to Clock Set Up Time : tCS 10 ns Data to Clock Hold Time : tCH 10 ns Clock Pulse Width High : tCWH 30 ns Clock Pulse Width Low : tCWL 30 ns Clock to Load Enable Set Up Time : tES 10 ns Load Enable Pulse Width : tEW 30 ns Truth Table 16 8 4 2 1 0.5 Attenuation State 0 0 0 0 0 0 Reference Loss 0 0 0 0 0 1 0.5dB 0 0 0 0 1 0 1dB 0 0 0 1 0 0 2dB 0 0 1 0 0 0 4dB 0 1 0 0 0 0 8dB 1 0 0 0 0 0 16dB ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 6/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series Package Dimensions (Type: CP-5CS) No Description No Description 1 RF Input 8 Serial mode select 9 RF Output 10 2nd-Amp. Power supply (Vd2) 11 1st-Amp. Power supply (Vd1) 12 GND 2 3 4 5,7 Serial interface data input (Data) Serial interface clock input (Clock) Latch Enable input (Latch) Attenuator Power supply (Vd3) 6 Floating No Vdd 10,11 5V 5,7,8 3V Recommended Pattern ! ESD sensitive Observe precautions for handling, testing and packaging. ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 7/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series Application PCB Evaluation Board Layout Pattern 40mm PCB material (FR4), PCB thickness (0.8t), Via hole (Φ0.5) 40mm RFHIC Corporation (RFHIC) reserves the right to make changes to any products herein or to discontinue any product at any time without notice. RFHIC do not assume any liability for the suitability of its products for any particular purpose, and disclaims any and all liability, including without limitation consequential or incidental damages. The product specifications herein expressed have been carefully checked and are assumed to be reliable. However, RFHIC disclaims liability for inaccuracies and strongly recommends buyers to verify that the information they are using is current before placing purchase orders. RFHIC products are not intended for use in life support equipment or application where malfunction of the product can be expected to result in personal injury or death. Buyer uses or sells such products for any such unintended or unauthorized application, buyer shall indemnify, protect and hold RFHIC and its directors, officers, stockholders, employees, representatives and distributors harmless against any and all claims arising out of such use. RFHIC’s liability under or arising out of damages, claims of whatsoever kind and nature which RFHIC products could cause shall be limited in amount to the net purchase price of the products sold to buyer by RFHIC. ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 8/9 ▪ All specifications may change without notice. ▪ Version 1.2 Variable Gain Amplifier 2AM Series PCB Evaluation Board ③②① No Description nd 2 -Amp. Power supply (Vd2=5v) st 1 -Amp. Power supply (Vd1=5v) 1 2 3,4,11 GND 5 Serial interface data input (Data) 6 Serial interface clock input (Clock) 7 Latch Enable input (Latch) Attenuator Power supply Control port A & Control board supply 8,9 ④⑤⑥⑦⑧ ⑨⑩⑪ (Vd3=3v) Serial mode select 10 (Vdc=3V) Connection Attenuation Control Board ① Control port B No Description 1 Serial interface port 2 RS232 communication port 3 Attenuation control switch ② Connect port A to port B S/W downloading (Only RFHIC use) Select 1 = 0.5dB Select 2 = 1dB Select 3 = 2dB Select 4 = 4dB Select 5 = 8dB Select 6 = 16dB ③ ※There is no need for users to program the MCU chip on the control board. You can easily evaluate the variable gain amplifier providing voltage to the evaluation board and toggling the switches on the control board. ▪ Tel : 82-31-250-5011 ▪ [email protected] Page 9/9 ▪ All specifications may change without notice. ▪ Version 1.2