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| Hi Dyn Range 2 Channel IF Amp with Power Control, 100 - 400 MHz V 2.00 AM55-0024 Features n n n n n n n n Functional Block Diagram IF in A Logic Interface Attenuation: 0.5 dB steps to 31.5 dB 6 Bit Digital Gain Control CMOS Logic Serial Logic Interface Single Positive Voltage Supply 8 mm PBGA Package JEDEC MO-151 Footprint Single Package Solution for GSM,CDMA,PCS IF out A IF in B IF out B Description The M/A-COM AM55-0024 is a dual channel IF amplifier and digital attenuator packaged in a multi-layer multi-chip module (MCM). Gain control is via two separate serial logic interfaces. The part utilizes Plastic Ball Grid Array (PBGA) interconnect technology to achieve high circuit density and superior performance. This device is ideal for GSM/DCS/PCS digital base station applications where high dynamic range gain control functionality is required. Absolute Maximum Ratings 1 Parameter Input Power2 Operating Voltage 2 Absolute Maximum +20 dBm VDD = +6 V -40C to +85C -65C to +150C Operating Temperature Storage Temperature 1. Exceeding any one or combination of these limits may cause permanent damage. 2. Ambient Temperature (T A) = +25C. Electrical Specifications: TA = 25C, Z0 = 50 Parameter Gain Gain Control Range Minimum Gain Control Step Size Return Loss Output IP3 Supply Voltage Supply Current Switching Speed (50% TTL to 90% RF) Isolation P1 dB Noise Figure 1. All measurements in a 50 Ohm system. 100 - 400 MHz @ 3V / @ 5V Test Conditions 100 - 400 MHz 100 - 400 MHz 100 - 400 MHz 100 - 400 MHz 100 - 400 MHz @ 5V 1 Units dB dB dB dB dBm V mA nS dBc dBm dB 50 15 10 Min. 19.5 Typ. 21 31.5 0.5 12 30 3/5 300/400 50 60 17.5 4 Max. 22.5 Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz External Components 1, 2, 3 3V A1 3V A2 3V B1 3V B2 AM55-0024 V 2.00 Clock Diagram 1, 2, 3, 4, 5 Data 3V A3 IF In A IF Out A Clock AM55-0024 Latch IF In B IF Out B 3V B3 1. 2. 3. 4. 5. Max Clock Speed = 40 MHz Ton = Toff Tsu = >3ns Thold = >7ns Data clocked in on rising clock edge Latch B Data B Clk B Latch A Data A Digital VDD 1. All inductors are 470 nH 2. All Capacitors are 10000 pF 3. IF outputs must be supplied +3 Volts. Component L C Typical Performance Curves Input VSWR 3.5 3.0 3.5 Clk A Serial Interface Value 470 nH 10000 pF Each channel in the AM55-0024 is independently controllable with a 3 wire serial interface: Clock, Data, and Latch Enable. These lines can be shared based on application requirements. The attenuator within the device is controlled with a 6 bit word, enabling the selection of 64 possible states. The highest gain state is '000000', and the lowest is '111111'. The sequence for shifting the data is as follows: Present data (MSB first), strobe clock, repeat until 6 bits have been presented and clocked, then strobe the latch enable line, which implements the state change. Output VSWR 3.0 VSWR (dB) 2.5 2.0 1.5 1.0 0.045 0.105 0.165 0.225 0.285 0.345 0.405 VSWR (dB) 2.5 2.0 1.5 1.0 0.045 0.105 0.165 0.225 0.285 0.345 0.405 Frequency (GHz) Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 2 Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz Typical Performance Curves (Cont'd) AM55-0024 V 2.00 Attenuation (6 individual bits) 25 Gain +85C 23 22 +25C -40C 20 Attenuation (dB) Gain (dB) 15 21 20 19 18 10 5 0 0.05 0.11 0.17 0.23 0.29 0.35 0.41 0.045 0.105 0.165 0.225 0.285 0.345 0.405 Frequency (GHz) Frequency (GHz) Noise Figure 18 16 Noise Figure (dB) 14 12 10 8 6 4 2 0 0.05 0.1175 0.185 0.2525 0.32 0.3875 0.455 Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 3 Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz 8 mm PBGA AM55-0024 V 2.00 Pin Out 8 +5V_A1 7 DAT_A 6 CLK_A 5 +5V_A2 4 3 2 1 RF_OUT_A A B RF_IN_A LE_A RF_IN_B LE_B CLK_B DAT_B +5V_B1 +5V_B2 RF_OUT_B C D E F G H Ordering Information Part Number AM55-0024 AM55-0024TR AM55-0024RTR Package 8-mm PBGA Package Forward Tape and Reel1 Reverse Tape and Reel 1. If specific reel size is required, consult factory for part number assignment. Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 4 |
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