19-1567; Rev 1; 2/01 EVAALVUAAILTAIOBNLEKIT
+2.
7V, Single-Supply, Cellular-Band Linear Power
Amplifiers
MAX2267/MAX2268/MAX2269
General Description
The MAX2267/MAX2268/MAX2269 power
amplifiers are optimized for IS-98-based CDMA and PDC cellular telephones operating in the Japanese cellular-frequency band.
When matched for CDMA operation, the
amplifiers achieve 27dBm output power with 35% efficiency (MAX2268), with margin over the adjacent and alternate channel specification.
At a +17dBm output—a very common power level for CDMA phones—the MAX2268 still has 7% efficiency, yielding excellent overall talk time.
At the same power level, the MAX2267/MAX2269 have an unprecedented 12%/17% effici...