The SKY65174-21 is a highly integrated power amplifier module (PAM) intended for high performance wireless local area network (WLAN) requiring up to +27 dBm linear output power. The SKY65174-21 is fabricated using Skyworks high reliability Heterojunction Bipolar Transistor (HBT) InGaP process, which allows for single supply operation while maintaining high efficiency and good linearity. The PAM is packaged in a 10-pin, 4 x 4 mm Multi-Chip Module (MCM) together with power detector, biasing, and input/output matching components. This architecture makes the SKY65174-21 a highly integrated solution requiring a minimum number of external components. A functional block diagram of the SKY65174-21 is shown in Figure 1. The 10-pin MCM package and pinout are provided in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.