Maxim无线/射频功率放大器选择指南
本文概括了maxim针对蜂窝、pcs、802.11b、无绳电话以及bluetooth等应用提供的射频(rf)功率放大器(pa)。列出了工作电压、电源电流、输出功率、封装、功效等参数的对照表，并给出了maxim pa ic的特点。另外，还提供了一个根据市场应用选择的参考表。
更多信息请查询：无线产品网页
更多信息请查询：快速浏览max2240数据资料
更多信息请查询：快速浏览max2264/max2265数据资料
更多信息请查询：快速浏览max2267/max2268/max2269数据资料
更多信息请查询：快速浏览max2320/max2321/max2322/max2324/max2326/max2327数据资料
更多信息请查询：快速浏览max2430数据资料
更多信息请查询：快速浏览max2601/max2602数据资料
更多信息请查询：应用技术支持
maxim的rf功率放大器即可应用于线性调制，如qam和qpsk，也可用于非线性调制，如：fm、fsk等。针对tdma市场设计的pa在性能上有所改进，如：自动斜率控制可减小频谱扩散，自动斜率控制有助于保持vcc的稳定、降低vco牵引。自动热保护功能能够根据需要临时减小输出功率，提供一个坚固、耐用的pa。针对cdma市场推出的pa能够在城市或远郊cdma环境下、对于大多数便携终端要求的输出功率电平提供更低的电源电流，cdma pa在大多数时间工作在较低的输出功率状态。
对于2.4ghz ism应用，如：802.11b wlan、bluetooth、homerf及无绳电话，maxim可提供低成本、超小尺寸(如ucsp封装)的功率放大器，这些pa具有模拟或数字的功率控制、闭环功率控制、动态偏置控制、集成检测器等，并具有较高的效率。
以下列出了采用硅双极型工艺设计的rf功率放大器关键特性：
低成本，这一点得益于它较高的管芯产量和简单的器件制作工艺(与超外差器件相比)
小尺寸，采用ucsp封装和较少的外部元件
无需负偏置电源，不同于大多数gaas放大器
在全温范围和负载变化范围内提供稳定的器件特性
自动斜率控制
下表列出了我们的一些功率放大器及其性能，注意，有几款pa需要在指定的性能参数和中心频点进行重新调谐，与表中参数有差异。
表1. 选择指南: 型号列表
part vcc
(v) icc
(ma) frequency
(mhz) pout
(dbm) class package pae
(full) pae
(derated) features
max2235 2.7 to 5.5 20 idle
610 full 800 to 1000 +30.3 c 20-pin
tssop-ep 47% 22%
+24dbm analog gain control, auto power ramp, shutdown
max2430 3.0 to 5.5 52 800 to 1000 +21.4 ab 16-pin
so/qsop 24% na power control, shutdown, drives max2601/02
max2601 2.7 to 5.5 450 dc to 1000 +30.0 ab/c 8-pin
psopii 54% 18%
+20dbm power transistor
max2602 2.7 to 5.5 450 dc to 1000 +30.0 ab/c 8-pin
psopii 54% 18%
+20dbm power transistor with on-chip bias diode, power ramp, shutdown
max2264 2.7 to 5.0 34 idle,
58 avg,
95 full 824 to 849 +28.0 ab 16-pin
tssop-ep 32% 12%
+16dbm is-98 cdma u.s., internal switch,
smallest, most economical solution
max2265 2.7 to 5.0 83 full 824 to 849 +28.0 ab 16-pin
tssop-ep 37% 7%
+16dbm is-98 cdma u.s., tdma pae = 40% at +30dbm
max2266 2.7 to 5.0 34 idle,
52 avg,
100 full 824 to 849 +28.0 ab 16-pin
tssop-ep 32% 17%
+16dbm is-98 cdma u.s., off-chip switch, lowest current
max2267 2.7 to 4.5 34 idle,
56 avg,
95 full 887 to 925 +27.0 ab 16-pin
tssop-ep 28% 12%
+17dbm is-98 cdma japan, internal switch,
smallest, most economical solution
max2268 2.7 to 4.5 90 idle 887 to 925 +27.0 ab 16-pin
tssop-ep 34% 7%
+13.6dbm is-98 cdma japan, pdc pae = 41% at +29dbm
max2269 2.7 to 4.5 34 idle,
50 avg,
100 full 887 to 925 +27.0 ab 16-pin
tssop-ep 29% 17%
+17dbm is-98 cdma japan, off-chip switch, lowest current
max2240 2.7 to 5.0 65 idle
105 full 2400 to 2500 +20 ab ucsp
3x3 30% na bluetooth pa with digital power control, shutdown
max2242 2.7 to 3.6 280 idle
300 full 2400 to 2500 +22.5 ab ucsp
3x4 17%
pin=
-7dbm
315ma 6.7%
+13dbm +22.5dbm output power at -33dbc acpr for 802.11b
28.5db power gain
external bias control for current throttleback
on-chip power detector
output power tunable from +10dbm to +22dbm
max2244 3.0 to 3.6 65 idle
172 full 2400 to 2500 +22 ab ucsp
3x3 34.2% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.5v to 2.0v
supply current = 170ma at +22dbm
max2245 3.0 to 3.6 65 idle
179 full 2400 to 2500 +22 ab ucsp
3x3 29.2% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.9v to 2.0v
supply current = 170ma at +22dbm
max2246 3.0 to 3.6 42 idle
118 full 2400 to 2500 +20 ab ucsp
3x3 27.8% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.5v to 2.0v
max2247 2.7 to 3.6 293 idle
390 full 2400 to 2500 +25 ab ucsp
3x4 24.5% 21%
+22.5dbm high linear output power: +25dbm with < -33dbc acpr
(1st side lobe) and < -55dbc acpr (2nd side lobe)
25% efficiency with linear output power
29db power gain
on-chip power detector
external bias control for current throttleback
on-chip input matching
0.5µa shutdown mode
max2251 2.8 to 4.5 205 idle
1029 full 824 to 849 +32.4
amps
+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
16-pin pqsop package outline
16/20-pin tssop-ep package outline
16-pin so/qsop package outline
8-pin psopii package outline
9-pin uscp package outline
12-pin uscp package outline
25-pin uscp package outline
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更多信息请查询：无线产品网页
更多信息请查询：快速浏览max2240数据资料
更多信息请查询：快速浏览max2264/max2265数据资料
更多信息请查询：快速浏览max2267/max2268/max2269数据资料
更多信息请查询：快速浏览max2320/max2321/max2322/max2324/max2326/max2327数据资料
更多信息请查询：快速浏览max2430数据资料
更多信息请查询：快速浏览max2601/max2602数据资料
更多信息请查询：应用技术支持
maxim的rf功率放大器即可应用于线性调制，如qam和qpsk，也可用于非线性调制，如：fm、fsk等。针对tdma市场设计的pa在性能上有所改进，如：自动斜率控制可减小频谱扩散，自动斜率控制有助于保持vcc的稳定、降低vco牵引。自动热保护功能能够根据需要临时减小输出功率，提供一个坚固、耐用的pa。针对cdma市场推出的pa能够在城市或远郊cdma环境下、对于大多数便携终端要求的输出功率电平提供更低的电源电流，cdma pa在大多数时间工作在较低的输出功率状态。
对于2.4ghz ism应用，如：802.11b wlan、bluetooth、homerf及无绳电话，maxim可提供低成本、超小尺寸(如ucsp封装)的功率放大器，这些pa具有模拟或数字的功率控制、闭环功率控制、动态偏置控制、集成检测器等，并具有较高的效率。
以下列出了采用硅双极型工艺设计的rf功率放大器关键特性：
低成本，这一点得益于它较高的管芯产量和简单的器件制作工艺(与超外差器件相比)
小尺寸，采用ucsp封装和较少的外部元件
无需负偏置电源，不同于大多数gaas放大器
在全温范围和负载变化范围内提供稳定的器件特性
自动斜率控制
下表列出了我们的一些功率放大器及其性能，注意，有几款pa需要在指定的性能参数和中心频点进行重新调谐，与表中参数有差异。
表1. 选择指南: 型号列表
part vcc
(v) icc
(ma) frequency
(mhz) pout
(dbm) class package pae
(full) pae
(derated) features
max2235 2.7 to 5.5 20 idle
610 full 800 to 1000 +30.3 c 20-pin
tssop-ep 47% 22%
+24dbm analog gain control, auto power ramp, shutdown
max2430 3.0 to 5.5 52 800 to 1000 +21.4 ab 16-pin
so/qsop 24% na power control, shutdown, drives max2601/02
max2601 2.7 to 5.5 450 dc to 1000 +30.0 ab/c 8-pin
psopii 54% 18%
+20dbm power transistor
max2602 2.7 to 5.5 450 dc to 1000 +30.0 ab/c 8-pin
psopii 54% 18%
+20dbm power transistor with on-chip bias diode, power ramp, shutdown
max2264 2.7 to 5.0 34 idle,
58 avg,
95 full 824 to 849 +28.0 ab 16-pin
tssop-ep 32% 12%
+16dbm is-98 cdma u.s., internal switch,
smallest, most economical solution
max2265 2.7 to 5.0 83 full 824 to 849 +28.0 ab 16-pin
tssop-ep 37% 7%
+16dbm is-98 cdma u.s., tdma pae = 40% at +30dbm
max2266 2.7 to 5.0 34 idle,
52 avg,
100 full 824 to 849 +28.0 ab 16-pin
tssop-ep 32% 17%
+16dbm is-98 cdma u.s., off-chip switch, lowest current
max2267 2.7 to 4.5 34 idle,
56 avg,
95 full 887 to 925 +27.0 ab 16-pin
tssop-ep 28% 12%
+17dbm is-98 cdma japan, internal switch,
smallest, most economical solution
max2268 2.7 to 4.5 90 idle 887 to 925 +27.0 ab 16-pin
tssop-ep 34% 7%
+13.6dbm is-98 cdma japan, pdc pae = 41% at +29dbm
max2269 2.7 to 4.5 34 idle,
50 avg,
100 full 887 to 925 +27.0 ab 16-pin
tssop-ep 29% 17%
+17dbm is-98 cdma japan, off-chip switch, lowest current
max2240 2.7 to 5.0 65 idle
105 full 2400 to 2500 +20 ab ucsp
3x3 30% na bluetooth pa with digital power control, shutdown
max2242 2.7 to 3.6 280 idle
300 full 2400 to 2500 +22.5 ab ucsp
3x4 17%
pin=
-7dbm
315ma 6.7%
+13dbm +22.5dbm output power at -33dbc acpr for 802.11b
28.5db power gain
external bias control for current throttleback
on-chip power detector
output power tunable from +10dbm to +22dbm
max2244 3.0 to 3.6 65 idle
172 full 2400 to 2500 +22 ab ucsp
3x3 34.2% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.5v to 2.0v
supply current = 170ma at +22dbm
max2245 3.0 to 3.6 65 idle
179 full 2400 to 2500 +22 ab ucsp
3x3 29.2% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.9v to 2.0v
supply current = 170ma at +22dbm
max2246 3.0 to 3.6 42 idle
118 full 2400 to 2500 +20 ab ucsp
3x3 27.8% na integrated input match
internal bandwidth-limited power ramping
power control range: 0.5v to 2.0v
max2247 2.7 to 3.6 293 idle
390 full 2400 to 2500 +25 ab ucsp
3x4 24.5% 21%
+22.5dbm high linear output power: +25dbm with < -33dbc acpr
(1st side lobe) and < -55dbc acpr (2nd side lobe)
25% efficiency with linear output power
29db power gain
on-chip power detector
external bias control for current throttleback
on-chip input matching
0.5µa shutdown mode
max2251 2.8 to 4.5 205 idle
1029 full 824 to 849 +32.4
amps
+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
16-pin pqsop package outline
16/20-pin tssop-ep package outline
16-pin so/qsop package outline
8-pin psopii package outline
9-pin uscp package outline
12-pin uscp package outline
25-pin uscp package outline
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