Wireless LAN Front End

www.DataSheet4U.com SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Applications IEEE802.11b DSSS WLAN IEEE802.11g OFDM WLAN Access Points, PCMCIA, PC cards Product Description The SE2521A60 is a complete 802.11 b/g WLAN RF front-end module providing all the functionality of the power amplifier, power detector, T/R switch, diversity switch and associated matching. The SE2521A60 provides a complete 2.4 GHz WLAN RF solution from the output of the transceiver to the antennas in an ultra compact form factor. Designed for ease of use, all RF ports are matched to 50 Ω to simplify PCB layout and the interface to the transceiver RFIC. The SE2521A60 also includes a transmitter power detector with 20 dB of dynamic range and a digital enable control for transmitter power ramp on/off control. The power ramp rise/fall time is 1 µsec typical. The device also provides a notch filter from 3.2-3.3 GHz prior to the input of the power amplifier. The SE2521A60 is footprint compatible to SiGe’s SE2521A34 and can be placed directly into existing SE2521A34 designs easily providing higher output power solutions Features Pin for pin compatible to SiGe’s SE2521A34 but providing 2 dB extra output power Dual Mode IEEE802.11b & IEEE802.11g All RF ports matched to 50 Ω Integrated PA, TX Filter, DPDT T/R and Diversity switches Integrated Power Detector 23 dBm O/P Power, 802.11b, 11 Mbits, ACPR <35 dBc 18 dBm @ 2.0 %, 802.11g, 54 Mbits Single supply voltage: 3.3 V ± 10 % Lead free and RoHS compliant Small lead free plated package, 8 mm x 7 mm x 1.1 mm, MSL 3 Ordering Information Part No. SE2521A60 SE2521A60-R SE2521A60-EK1 Package 24 pin LGA 24 pin LGA N/A Remark Samples Tape and Reel Evaluation kit Functional Block Diagram VCC1 ANT_A 50 Ohm Match TXEN Bias Circuitry TXIN 50 Ohm Match Filter OMN LPF PD_OUT Power Detector 50 Ohm Match 50 Ohm Match Switch Control C1 RXOUT C2 C3 C4 ANT_B Figure 1: Functional Block Diagram 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 1 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Pin Out Diagram ANT_A ANT_B 18 17 C4 16 C3 15 C2 14 C1 13 PD_OUT 6 TX_IN 7 GND 8 GND 9 GND 10 RX_OUT 11 N/C 12 TXEN GND GND GND GND 20 24 GND VCC1 VCC1 GND GND 1 2 3 4 5 23 22 21 Figure 2: SE2521A60 Pin Out (Top View Through Package) Pin Out Description Pin No. 1 2 3 4,5 6 7,8,9 10 11 12 13 14 15 16 17 18 19,20 21 22,23,24 Name GND VCC1 VCC1 GND TX_IN GND RX_OUT N/C TXEN PD_OUT C1 C2 C3 C4 ANT_B GND ANT_A GND Ground +3.3 V DC +3.3 V DC Ground Transmit Input Ground Receive Output No Connect Transmit Enable Power Detector Control 1 Input Control 2 Input Control 3 Input Control 4 Input Antenna B (50 ohm) Ground Antenna A (50 ohm) Ground Description 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 GND 19 2 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Absolute Maximum Ratings These are stress ratings only. Exposure to stresses beyond these maximum ratings may cause permanent damage to, or affect the reliability of the device. Avoid operating the device outside the recommended operating conditions defined below. This device is ESD sensitive. Handling and assembly of this device should be at ESD protected workstations. Symbol VCC TXEN TXRF TA TSTG Definition Supply Voltage on VCC Power Amplifier Enable RF Input Power Operating Temperature Range Storage Temperature Range Min. -0.3 -0.3 -20 -40 Max. 4.0 4.0 2.0 85 150 Unit V V dBm °C °C Recommended Operating Conditions Symbol VCC TA Supply Voltage Ambient Temperature Parameter Min. 3.0 0 Typ. 3.3 25 Max. 3.6 85 Unit V °C DC Electrical Characteristics Conditions: Symbol VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted Parameter Conditions POUT = 18 dBm, 54 Mbps OFDM signal, 64QAM POUT = 15 dBm, 54 Mbps OFDM signal, 64QAM POUT = 20 dBm, 11 Mbps CCK signal, BT = 0.45 VEN = 0 V, No RF Applied, C1 = C2 = C3 = C4 = 0 V Min. 165 110 175 Typ. 180 150 205 2 Max. 230 215 275 10 Unit mA mA mA µA ICC-G Total Supply Current ICC-B ICC_OFF Total Supply Current Total Supply Current 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 3 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Logic Characteristics Conditions: Symbol VENH VENL IENH IENL VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted. Parameter Logic High Voltage (Module On) Logic Low Voltage (Module Off) Input Current Logic High Voltage Input Current Logic Low Voltage Conditions Min. 2.0 0 -1 -1 Typ. Max. VCC 0.5 200 1 Unit V V µA µA Switch Characteristics Conditions: Symbol VCTL_ON VCTL_OFF SWON SWOFF ICTL_ON ICTL_ON CCTL VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted. Parameter Control Voltage (On State) Control Voltage (OFF State) Low Loss Switch Control Voltage High Loss Switch Control Voltage Switch Control Bias Current (RF Applied) Switch Control Bias Current (No RF) Control Input Capacitance Conditions High State = VCTL_ON VCTL_OFF Low State = VCTL_OFF VCTL_OFF On pin (C1,C2,C3,C4) being driven high. RF Applied On pin (C1,C2,C3,C4) being driven high. No RF Min. 3.0 0.0 2.8 0 Typ. Max. 3.6 0.2 VCC 0.3 100 30 100 Unit V V V V µA µA pF Switch Control Logic Table Switch Logic C1 SWON SWOFF SWOFF SWOFF C4 SWOFF SWON SWOFF SWOFF C2 SWOFF SWOFF SWON SWOFF C3 SWOFF SWOFF SWOFF SWON TXRF – ANTA ON OFF OFF OFF Operational Mode TXRF – ANTB OFF ON OFF OFF RXRF – ANTA OFF OFF ON OFF RXRF – ANTB OFF OFF OFF ON 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 4 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End AC Electrical Characteristics 802.11g Transmit Characteristics Conditions: Symbol FIN P802.11g VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted. Parameter Frequency Range Output power Condition 54 Mbps OFDM signal, 64QAM, EVM = 2.0 % 11 Mbps CCK signal, BT = 0.45 ACPR(Adj) < -32 ACPR(Alt) < -52 Pout = 19 dBm, 2 Mbps, 802.11b CCK f1 and f2 at Fc +/- 312.5 kHz, P = 15 dBm f1 and f2 at Fc +/- 312.5 kHz, P = 15 dBm 10 % to 90% of final output power level 50 % of VEN edge and 90/10 % of final output power level PIN ≤ -2 dBm Load VSWR = 6:1 Min. 2400 Typ. 18 Max. 2500 Unit MHz dBm P802.11b Output power - 23 - dBm P1dB S21 ∆S21 S213.2 2f,3f IM3 IM5 tr tdr, tdf S11 STAB P1dB Small Signal Gain Small Signal Gain Variation Over Band Gain @ 3.2 to 3.3 GHz Harmonics 3 Order Intermodulation 5 Order Intermodulation Rise Time Delay and rise/fall Time Input Return Loss Stability th rd 22.5 25 4.5 25.5 1.0 0 -49 -40 -55 0.12 6.5 33 3.0 7 -42 -33 -47 0.5 1.0 - dBm dB dB dB dBm/MHz dBc dBc µs µs dB All non-harmonically related outputs less than -50 dBc/1MHz 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 5 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Receive Characteristics Conditions: Symbol FOUT RXIL RXRL Delta Rx VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), all unused ports terminated with 50 ohms, unless otherwise noted. Parameter Frequency Range Insertion Loss Return Loss Delta between Rx paths Condition ANT_A to RX_OUT or ANT_B to RX_OUT C1 or C4 = SWON, C2 = C3 = SWOFF, Device transmitting 15 dBm @ ANTA or ANTB, Power measured @ RX_OUT Small signal input into ANT_A or ANT_B, Device not transmitting, Power measured @ RX_OUT, C1 AND C4 = SWON, C2 and C3 = SWOFF Min. 2400 Typ. 0.8 -15 Max. 2500 1.2 -10 0.5 Unit MHz dB dB dB TRISOL-2 Rx Leakage -9 - 3 dBm ANTRISOL Isolation between ANT_A and ANT_B to RX_OUT 14 - 24 dB 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 6 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Power Detector Characteristics Conditions: Symbol FOUT PDR PDZLOAD PDVNoRF PDVp18 PDVp20 LPF-3dB VCC = VEN = 3.3 V, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board (de-embedded to device), unless otherwise noted. Parameter Frequency Range Power detect range, peak power DC load impedance Output Voltage, POUT = No RF Output Voltage, POUT = 18dBm Output Voltage, POUT = 20dBm Power detect low pass filter -3dB corner frequency Condition Measured at ANT_A or ANT_B PDZLOAD = >1 Mohm, PDCLOAD = 180 pF Min. 2400 0 1 0.90 0.44 0.28 270 Typ. 330 Max. 2500 20 1.02 0.66 0.51 400 Unit MHz dBm Mohm V V V KHz Note: Power detector internal impedance is 2.7 KOhm Power Detector Response Characteristic 1 0.9 0.8 0.7 0.6 VDET (V) 0.5 0.4 0.3 0.2 0.1 0 0 2 4 6 8 10 12 14 16 18 20 22 Output Power (dBm) Figure 3: SE2521A60 Power Detector Performance Curve 177-DST-01 Rev 1.4 Apr-04-2006 Confidential QA040406 7 of 16 SE2521A60 RangeCharger™ 2.4 GHz Wireless LAN Front End Typical Performance Data (Ambient Temperature) Conditions: VCC = VEN = 3.3 V, Frequency = 2450 MHz, TA = 25 °C, as measured on SiGe Semiconductor’s SE2521A60-EV1 evaluation board , all unused ports terminated with 50 ohms, unless otherwise noted. 802.11g Typical Performance Conditions: 54Mbps 802.11g OFDM Signal 802.11g EVM vs. Output Pow er over Frequency (25 C, 3.3V) 2400 MHz 5 4.5 4 3.5 EVM (%) 2.5 2 1.5 1 0.5 0 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Output Pow er (dBm ) EVM (%) 802.11g EVM vs. Output Pow er over Voltage (2450 MHz, 25 C) 2.7 V 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 6 7 8 9 10 11 12 13 14 15 16 Output Pow er (dBm ) 17 18 19 20 21 3.0 V 3.3 V 3.6 V 2450 MHz 2500 MHz 3 Figure 4: 802.11g Typical EVM Performance: (a) Over Frequency, (b) Over Voltage 802.