Maxim无线/射频功率放大器选择指南

+30
TDMA
 AB UCSP
3x4  51%
AMPS

41%
TDMA
 38%
+30dBm
AMPS  Gain: 28dB
Integrated Power Detector
Low-Power Shutdown Mode
PAE: 41% at +30dBm for TDMA
PAE: 51% at +32.4dBm for AMPS 
MAX2281 2.7 to 4.2 35 idle
731 full 824 to 849 +29 AB UCSP
5x5  +31% 14%
+16dBm PAE: 14% at +16dBm Output Power for CDMA
PAE: 31% at +29dBm Output Power for CDMA
PAE: 40% at +31.5dBm Output Power for AMPS
PAE: 43% at +30.5dBm Output Power for TDMA
Shutdown Mode 
MAX2282 2.7 to 4.2 35 idle
471 full 887 to 925 +27.5 AB UCSP
5x5  34% 17%
+18dBm PAE: 17% at +18dBm Output Power for JCDMA
PAE: 34% at +27.5dBm Output Power for JCDMA
23dB Low-Power Mode Gain
28dB High-Power Mode Gain
Shutdown Mode 
MAX2291 2.7 to 4.2 30 idle
629 full 1850 to 1910 +29 AB UCSP
5x5  36% 10%
+15dBm High-Power Path Gain: 27dB
Low-Power Path Gain: 15dB
N-CDMA PAE: 36% at +28dBm
Shutdown Mode
TDMA PAE: 42% at +30.5dBm
W-CDMA PAE: 37% at +28dBm 

表2. 针对市场选择

Market Part Advantages Specs
Cellular CDMA (U.S.) MAX2265 Low-cost, Simple Layout, Few External Components,
High-peak Efficiency Efficiency = 37% (ACPR = -45)
Efficiency = 35% (ACPR = -48) 
MAX2264
MAX2266 Low-cost, World''s Lowest Talk Current Talk Current=55mA
16dBm Efficiency =12/18% (2264/66)
Peak Efficiency =32% 
MAX2281 Small Size Ultra-chip Scale Package
(2.5mm x 2.5mm),
Fixed or Dynamic Biasing PAE: 14% at +16dBm Output Power for CDMA
PAE: 31% at +29dBm Output Power for CDMA
PAE: 40% at +31.5dBm Output Power for AMPS
PAE: 43% at +30.5dBm Output Power for TDMA 
MAX2251 Small Size Ultra-chip Scale Package
(2.06mm x 2.06mm),
Integrated Power Detector,
Low-power Shutdown Mode  Gain: 28dB
PAE: 41% at +30dBm for TDMA
PAE: 51% at +32.4dBm for AMPS 
CDMA (Japan) MAX2268 Low-cost, Simple Layout, Few External Components,
High-peak Efficiency Efficiency = 37% (ACPR = -45)
Efficiency = 35% (ACPR = -48) 
MAX2267
MAX2269 Low-cost, World''s Lowest Talk Current Talk Current=55mA
16dBm Efficiency =12/18% (2264/66 and ACPR=-45)
Peak Efficiency =33% (ACPR=-45) 
MAX2282 Small Size Ultra-chip Scale Package
(2.5mm x 2.5mm) PAE: 17% at +18dBm Output Power for JCDMA
PAE: 34% at +27.5dBm Output Power for JCDMA
23dB Low-Power Mode Gain
28dB High-Power Mode Gain 
PCS CDMA MAX2291 Small Size Ultra-chip Scale Package
(2.5mm x 2.5mm), Shutdown High-Power Path Gain: 27dB
Low-Power Path Gain: 15dB
N-CDMA PAE: 36% at +28dBm
TDMA PAE: 42% at +30.5dBm
W-CDMA PAE: 37% at +28dBm 
Cellular TDMA MAX2281 Shutdown Mode PAE: 14% at +16dBm Output Power for CDMA
PAE: 31% at +29dBm Output Power for CDMA
PAE: 40% at +31.5dBm Output Power for AMPS
PAE: 43% at +30.5dBm Output Power for TDMA 
MAX2251 Small Size Ultra-chip Scale Package
(2.06mm x 2.06mm),
Integrated Power Detector,
Low-power Shutdown Mode Gain: 28dB
PAE: 41% at +30dBm for TDMA 
PCS TDMA MAX2291 Small Size Ultra-chip Scale Package
(2.5mm x 2.5mm), Shutdown High-Power Path Gain: 27dB
Low-Power Path Gain: 15dB
N-CDMA PAE: 36% at +28dBm
TDMA PAE: 42% at +30.5dBm
W-CDMA PAE: 37% at +28dBm 
PDC MAX2265 Low-cost, Simple Layout, Few External Components,
High-peak Efficiency Efficiency=40% (ACPR=-28)
Pout=30dBm 
AMPs MAX2251 Small Size Ultra-chip Scale Package
(2.06mm x 2.06mm),
Integrated Power Detector,
Low-power Shutdown Mode Efficiency=51%
Pout=32.4dBm 
MAX2265 Low-cost, Simple Layout, Few External Components,
High-peak Efficiency PAE: 48% at +31.5dBm Output Power for AMPS
WLL MAX2265 Low-cost, Simple Layout, Few External Components,
High-peak Efficiency Efficiency=37% (ACPR=-45)
Efficiency=35% (ACPR=-48) 
900MHz ISM MAX2235 Analog Gain Control, Auto Power Ramp, Shutdown PAE: 47% at +30.3dBm Output Power
MAX2251 Small Size Ultra-chip Scale Package
(2.06mm x 2.06mm),
Integrated Power Detector,
Low-power Shutdown Mode Gain: 28dB
PAE: 41% at +30dBm for TDMA
PAE: 51% at +32.4dBm for AMPS 
Bluetooth
HomeRF
2.4GHz DECT MAX2240 Small Size Ultra-chip Scale Package
(1.56mm x 1.56mm),
2-bit Digital Power Control +20dBm, Efficiency =30%
MAX2244 Closed-loop Analog Power Control,
Small Size Ultra-chip Scale Package
(1.56mm x 1.56mm)  +22dBm, Efficiency = 34.2%
Power control range 0.5V to 2V
MAX2245 Closed-loop Analog Power Control,
Small Size Ultra-chip Scale Package
(1.56mm x 1.56mm)  +22dBm, Efficiency = 29.2%
Power control range 0.9V to 2V
MAX2246 Closed-loop Analog Power Control,
Small Size Ultra-chip Scale Package
(1.56mm x 1.56mm)  +20dBm, Efficiency = 27.8%
Power control range 0.5V to 2V
Cellular TDMA/AMPS
Dual Mode MAX2251 Small Size Ultra-chip Scale Package
(2.06mm x 2.06mm),
Integrated Power Detector,
Low-power Shutdown Mode Gain: 28dB
PAE: 41% at +30dBm for TDMA
PAE: 51% at +32.4dBm for AMPS 
802.11b WLAN MAX2242 Integrated Power Detector,
Dynamic Bias Control,
Output Power Tunable from +10dBm to +22dBm +22.5dBm Output Power at -33dBc ACPR for 802.11B
28.5dB Power Gain