ETC AP178-321

3.3 V, 802.11g/b
Linear Power Amplifier
AP178-321
Features
-321
■ High Linearity @ 25 dBm
0.008 (0.20 mm)
SEATING PLANE
0.118 (3.00 mm)
■ DC Current: 110 mA @ 19 dBm
PIN 1
INDICATOR
■ 802.11b/g OFDM Compliant
0.001
(0.02 mm)
0.118
(3.00 mm)
■ 1800–2500 MHz Operation
0.030
(0.75 mm)
± 0.002
(0.05 mm)
■ 19 dB Small Signal Gain
0.007
■ 27 dBm P1 dB @ 2.4 GHz
0.029 (0.180 mm)
(0.73 mm)
■ Uses Single DC Bias Supply
0.017
(0.435 mm) SQ.
PIN 1 INDICATOR
■ Low Cost Plastic Package
EXPOSED PAD
0.057 (1.45 mm) SQ.
+ 0.004 (0.10 mm)
- 0.006 (0.15 mm)
0.009 (0.23 mm)
+ 0.003 (0.07 mm)
- 0.002 (0.05 mm)
■ Available on Tape & Reel
0.0196
(0.50 mm) BSC
Description
The AP178-321 is a linear, medium power amplifier
designed for low voltage operation in a 2.4–2.5 GHz ISM
band having linear and high-efficiency performance with
802.11b/g signals. The device is manufactured on
advanced InGap HBT process and housed in a 12 Pin
3 x 3 mm QFN package.
0.022 (0.55 mm)
± 0.004 (0.10 mm)
Absolute Maximum Ratings
Characteristic
Value
RF Input Power
20 dBm
Supply Current
800 mA
Supply Voltage
5V
Operating Temperature
-65°C to +125°C
Storage Temperature
-65°C to +125°C
Electrical Specifications at 25°C
Parameter
Condition
Frequency Range
Small Signal Gain
F = 2.45 GHz
Symbol
Min.
Typ.
MHz
1800
S21
17
19
Max.
Unit
2500
dB
22
dB
Output Power at 1 dB compression
F = 2.45 GHz
P1 dB
26
27
dBm
Linear Output Power1
F = 2.45 GHz, IC = 110 mA
F = 2.45 GHz, IC = 170 mA,
POut = 22.5 dBm
POut
17
18
dBm
-40
dBc
-54
dBc
First
Sidelobe2
Second Sidelobe2
F = 2.45 GHz, IC = 186 mA,
POut = 22.5 dBm
Operating Voltage
Amplifier DC voltage
Reverse Isolation
Current Consumption
POut2 = 23.5 dBm
POut2 = 22.5 dBm
POut1 = 17 dBm
Quiescent1
VCC = 3.3 V, IC = 90 mA (unless otherwise specified)
1. Specifications are defined for the evaluations board below with the 802.11g
signal at 36 Mbit/s using 16 QAM OFDM.
VD
2.5
3.3
4.5
V
Isol.
30
dB
IQO
186
170
95
47
mA
mA
mA
mA
2. Specifications are defined for the evaluations board below with the 802.11b
signal at 11 Mbit/s with Cos = 0.85 filter.
Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email sales@skyworksinc.com • www.skyworksinc.com
Specifications subject to change without notice. 6/03A
1
3.3 V, 802.11g/b Linear Power Amplifier
AP178-321
Typical Performance Data
8
120
7
110
6
100
EVM (%)
Collector Current (mA)
Iq = 57 mA
90
80
5
4
2
Iq = 47 mA
70
Iq = 47 mA
1
Iq = 40 mA
Iq = 57 mA
60
10
12
14
16
18
20
0
10
12
14
16
18
Output Power (dBm)
Output Power (dBm)
ICC vs. Output Power
2
Iq = 40 mA
3
EVM vs. Output Power
Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email sales@skyworksinc.com • www.skyworksinc.com
Specifications subject to change without notice. 6/03A
20
3.3 V, 802.11g/b Linear Power Amplifier
AP178-321
Evaluation Board Schematic
VCC
3.3 V
C2
R2
4.3 Ω
R1
R3
PA_PE
Q1
PUMZ1 560 Ω
GND
C1
47 µF
GND
GND
Q2
12 k
L1
GND
0.1 µF
GND
10 p
GND
C5
2p
C6
16
1
GND 2
T1
0.35 x 0.6 mm
20 p
3.2 V
C9
0.1 µF
C4
GND
BLM11HA471
Input
L3
22 nH
C3
1n
GND
4.7 µF
C8
4
R4
270 Ω
R5
3
C7
560 p
GND
GND VCC1
Input
15
14
VCC1 VCC1 NC 13
Output
VB Q1 AP178-321 Output
VREG
Output
12
L4
22 nH GND
(0603)
C10
1.5 pF
11
10
5 V Q2
9
B
GND
N/A N/A N/A
6
7
8
L5
1 nH
(Printed
Meander)
GND
C11
20 pF
Output
T2
R6
3k
C12
10 pF
D1 SMS7630
Not Used
D2
C13
100 p
+VDet
R7
56 k
GND
Evaluation Board Layout (Top View)
Evaluation Board Layout (Bottom View)
Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email sales@skyworksinc.com • www.skyworksinc.com
Specifications subject to change without notice. 6/03A
3