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PDF SST12CP21 Data sheet ( Hoja de datos )
| Número de pieza | SST12CP21 | |
| Descripción | High-Efficiency Power Amplifier | |
| Fabricantes | Microchip | |
| Logotipo |  |
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SST12CP21
2.4 GHz High-Gain, High-Efficiency Power Amplifier
Features
• High Gain:
- Typically 39 dB gain across 2.4–2.5 GHz over
temperature -20°C to +85°C
• High linear output power:
- >30 dBm P1dB
- Please refer to “Absolute Maximum Stress
Ratings” on page 5
- Meets 802.11g OFDM spectrum mask require-
ment up to 28 dBm
- Typically 25 dBm with <3% EVM, 802.11g,
54 Mbps, 350 mA current
- Typically 24 dBm with <2.5% EVM, 802.11n,
MCS7-HT20, 50% duty cycle
- Typically 23 dBm with <1.75% EVM, MCS9-
HT40, 50% duty cycle, 320 mA current
- Meets 802.11b ACPR requirement up to 28 dBm
with 30% power-added efficiency
• High-speed power-up/down
- Turn on/off time (10%-90%) <100 ns
• 10:1 VSWR survivability (unconditionally stable
up to 28 dBm)
• On-chip power detection
- >20 dB dynamic range
- VSWR- and temperature-insensitive
• Simple input/output matching
• Packages available
- 16-contact UQFN (3mm x 3mm)
• All non-Pb (lead-free) devices are RoHS compli-
ant
Applications
• WLAN (IEEE 802.11b/g/n)
• WLAN 256 QAM
• AP router
• Home RF
• Cordless phones
• 2.4 GHz ISM wireless equipment
1.0 PRODUCT DESCRIPTION
SST12CP21 is a high-power and high-gain power
amplifier (PA) based on the highly-reliable InGaP/GaAs
HBT technology.
This PA can be easily configured for high-power appli-
cations with high power-added efficiency while operat-
ing over the 2.4-2.5 GHz frequency band. It typically
provides 39 dB gain with 25% power-added efficiency
@ POUT = 28 dBm for 802.11g.
SST12CP21 has excellent linearity, typically 25 dBm at
3% EVM with 54 Mbps 802.11g operation while meet-
ing 802.11g spectrum mask at 28 dBm. SST12CP21
also has a single-ended power detector which lowers
the users’ cost for power control.
The power amplifier IC also features easy board-level
usage along with high-speed power-up/-down control.
SST12CP21 is offered in 16-contact UQFN package.
See Figure 3-1 for pin assignments and Table 4-1 for
pin descriptions.
2014 Microchip Technology Inc.
Preliminary
DS70005165A-page 1
1 page  
SST12CP21
5.0 ELECTRICAL SPECIFICATIONS
The DC and RF specifications for the power amplifier
are specified below. Refer to Table 5-2 for the DC volt-
age and current specifications.
Absolute Maximum Stress Ratings (Applied conditions greater than those listed under “Absolute Maxi-
mum Stress Ratings” may cause permanent damage to the device. This is a stress rating only and func-
tional operation of the device at these conditions or conditions greater than those defined in the operational
sections of this data sheet is not implied. Exposure to absolute maximum stress rating conditions may
affect device reliability.)
Input power to pin 1 (PIN)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +12 dBm
Supply voltage at pins 4, 10, 11, 13 and 15 (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6 V
Reference voltage to pin 2 (VREF1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.2 V
DC supply current (ICC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 mA
Operating Temperature (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40ºC to +85ºC
Storage Temperature (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40ºC to +120ºC
Maximum Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150ºC
Surface Mount Solder Reflow Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C for 10 seconds
1. Maximum input power for VCC = 5V with 50% duty cycle, 802.11g 54 Mbps, with maximum output VSWR = 10:1. At VCC = 5V,
a 10Ω resistor must be included on VCC1, as shown in Figures 6-8 and 6-9.
TABLE 5-1:
Range
Industrial
OPERATING RANGE
Ambient Temp
-20°C to +85°C
VCC
5.0V
TABLE 5-2: DC ELECTRICAL CHARACTERISTICS AT 25ºC
Symbol
VCC
ICC
Parameter
Supply Voltage
DC Current
for 802.11g, 28 dBm
ICQ
VREG
IREG
for 802.11b, 28 dBm
Idle Current
Reference Voltage see Figure 6-8 on page 10
Reference Current
Min.
4.0
Typ
5.0
Max.
5.5
Unit
V
440
440
275
2.9 2.95
8
3.1
mA
mA
mA
V
mA
2014 Microchip Technology Inc.
Preliminary
DS70005165A-page 5
5 Page 
SST12CP21
FIGURE 6-9:
SCHEMATIC WITH HARMONIC FILTER FOR 256 QAM APPLICATIONS
0 Ω*
0.1 µF
Vcc
10 µF
0.1 µF
1 µF
RFIN
VREG
50Ω
15 Ω
2.7 nF
0.1 µF
16 15 14 13
1 12
15 nH
2
3
Bias
Circuit
4
56 7
11 50Ω /1mm
10 2.7 pF
9
8
VDET
1.0nH
2.0 pF
1.3nH
1.0 pF
2.7nH
10 pF
1.0 pF
RFOUT
Suggested operation conditions:
1. VCC = 5.0V/ VREG = 2.95V
2. Center slug to RF ground
* Note: R = 10Ω for robustness at
5.5V VCC
70005165 Schematic.2.1
2014 Microchip Technology Inc.
Preliminary
DS70005165A-page 11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet SST12CP21.PDF ] | |
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