MAX2266

19-1524; Rev 3; 2/01 EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL 2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers MAX2264/MAX2265/MAX2266 General Description The MAX2264/MAX2265/MAX2266 power amplifiers are designed for operation in IS-98-based CDMA, IS-136based TDMA, and PDC cellular telephones operating in the 900MHz range. When matched for CDMA operation and biased with margin over the adjacent and alternate channel specification (-45dBc/-56dBc), the amplifiers achieve 28dBm output power with 37% efficiency (MAX2265). At +16dBm output—a very common power level for CDMA phones—the MAX2265 still has 7% efficiency, yielding excellent overall talk time. At the same power level, the MAX2264/MAX2266 have an unprecedented 12%/17% efficiency, while still obtaining 32%/32% efficiency at maximum output power. The MAX2264/MAX2265/MAX2266 have internally referenced bias ports that are normally terminated with simple resistors. The bias ports allow customization of ACPR margin and gain....