3.3 V, 802.11g/b Linear Power Amplifier AP178-321 Features -321 ■ High Linearity @ 25 dBm 0.008 (0.20 mm) SEATING PLANE 0.118 (3.00 mm) ■ DC Current: 110 mA @ 19 dBm PIN 1 INDICATOR ■ 802.11b/g OFDM Compliant 0.001 (0.02 mm) 0.118 (3.00 mm) ■ 1800–2500 MHz Operation 0.030 (0.75 mm) ± 0.002 (0.05 mm) ■ 19 dB Small Signal Gain 0.007 ■ 27 dBm P1 dB @ 2.4 GHz 0.029 (0.180 mm) (0.73 mm) ■ Uses Single DC Bias Supply 0.017 (0.435 mm) SQ. PIN 1 INDICATOR ■ Low Cost Plastic Package EXPOSED PAD 0.057 (1.45 mm) SQ. + 0.004 (0.10 mm) - 0.006 (0.15 mm) 0.009 (0.23 mm) + 0.003 (0.07 mm) - 0.002 (0.05 mm) ■ Available on Tape & Reel 0.0196 (0.50 mm) BSC Description The AP178-321 is a linear, medium power amplifier designed for low voltage operation in a 2.4–2.5 GHz ISM band having linear and high-efficiency performance with 802.11b/g signals. The device is manufactured on advanced InGap HBT process and housed in a 12 Pin 3 x 3 mm QFN package. 0.022 (0.55 mm) ± 0.004 (0.10 mm) Absolute Maximum Ratings Characteristic Value RF Input Power 20 dBm Supply Current 800 mA Supply Voltage 5V Operating Temperature -65°C to +125°C Storage Temperature -65°C to +125°C Electrical Specifications at 25°C Parameter Condition Frequency Range Small Signal Gain F = 2.45 GHz Symbol Min. Typ. MHz 1800 S21 17 19 Max. Unit 2500 dB 22 dB Output Power at 1 dB compression F = 2.45 GHz P1 dB 26 27 dBm Linear Output Power1 F = 2.45 GHz, IC = 110 mA F = 2.45 GHz, IC = 170 mA, POut = 22.5 dBm POut 17 18 dBm -40 dBc -54 dBc First Sidelobe2 Second Sidelobe2 F = 2.45 GHz, IC = 186 mA, POut = 22.5 dBm Operating Voltage Amplifier DC voltage Reverse Isolation Current Consumption POut2 = 23.5 dBm POut2 = 22.5 dBm POut1 = 17 dBm Quiescent1 VCC = 3.3 V, IC = 90 mA (unless otherwise specified) 1. Specifications are defined for the evaluations board below with the 802.11g signal at 36 Mbit/s using 16 QAM OFDM. VD 2.5 3.3 4.5 V Isol. 30 dB IQO 186 170 95 47 mA mA mA mA 2. Specifications are defined for the evaluations board below with the 802.11b signal at 11 Mbit/s with Cos = 0.85 filter. Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 6/03A 1 3.3 V, 802.11g/b Linear Power Amplifier AP178-321 Typical Performance Data 8 120 7 110 6 100 EVM (%) Collector Current (mA) Iq = 57 mA 90 80 5 4 2 Iq = 47 mA 70 Iq = 47 mA 1 Iq = 40 mA Iq = 57 mA 60 10 12 14 16 18 20 0 10 12 14 16 18 Output Power (dBm) Output Power (dBm) ICC vs. Output Power 2 Iq = 40 mA 3 EVM vs. Output Power Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 6/03A 20 3.3 V, 802.11g/b Linear Power Amplifier AP178-321 Evaluation Board Schematic VCC 3.3 V C2 R2 4.3 Ω R1 R3 PA_PE Q1 PUMZ1 560 Ω GND C1 47 µF GND GND Q2 12 k L1 GND 0.1 µF GND 10 p GND C5 2p C6 16 1 GND 2 T1 0.35 x 0.6 mm 20 p 3.2 V C9 0.1 µF C4 GND BLM11HA471 Input L3 22 nH C3 1n GND 4.7 µF C8 4 R4 270 Ω R5 3 C7 560 p GND GND VCC1 Input 15 14 VCC1 VCC1 NC 13 Output VB Q1 AP178-321 Output VREG Output 12 L4 22 nH GND (0603) C10 1.5 pF 11 10 5 V Q2 9 B GND N/A N/A N/A 6 7 8 L5 1 nH (Printed Meander) GND C11 20 pF Output T2 R6 3k C12 10 pF D1 SMS7630 Not Used D2 C13 100 p +VDet R7 56 k GND Evaluation Board Layout (Top View) Evaluation Board Layout (Bottom View) Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 6/03A 3