MGA-425P8
GaAs Enchancement-mode PHEMT
Power Amplier in 2x2 mm
2
LPCC Package
Data Sheet
Description
Avago Technologies’s MGA-425P8 power amplier is designed
for wireless application in the 2–10 GHz frequency range. The
PA has a high power eciency (PAE) achieved through the
use of Avago Technologiess proprietary GaAs Enhancement-
mode pHEMT process.
MGA-425P8 is housed in a miniature 2.0 x 2.0 x 0.75 mm 8-lead
leadless-plastic-chip-carrier (LPCC) package. The compact foot-
print, low prole couple with the excellent thermal eciency
of the LPCC package makes the MGA-425P8 an ideal choice as
power amplier that saves board space.
On-chip bias circuitry allows operation from a single +3.3V
power supply. The output of the amplier is near to 50Ω (be-
low 2:1 VSWR) around 4.9–5.8 GHz. This makes MGA-425P8 an
ideal choice as power amplier for broadband IEEE 802.11a
system as well as other high performance wireless application
in the 2–10 GHz frequency range.
One external resistor (RBias) is used to set the bias current of
the device over a wide range.
This allows the designer to use the same part in several circuit
positions and tailor the output power/linearity performance,
and current consumption, to suit each position.
Pin Connections and Package Marking
2.0 x 2.0 x 0.75 mm 8-lead LPCC
Features
Near 50Ω broadband output match
Single +3.3V supply
High Gain & OIP3
Miniature 2 x 2 x 0.75 mm
LPCC package
Pb-free & MSL-1 package
Tape-and-Reel packaging
option available
Specications @ 5.25 GHz, 3.3V, 58 mA (typ)
13.3 dBm Linear Pout @ 5% EVM
10.3% PAE @ +13.3 dBm Pout
12 dBm Linear Pout @ 3% EVM
7.6% PAE @ + 12 dBm Pout
47% PAE @ P1dB
20.3 dBm P1dB
32.9 dBm OIP3
16 dB Gain
1.7 dB NF
Note:
Package marking provides orientation and identication
“2Y” = Device Code
“X” = Data code indicates the month of manufacture.
Pin 1 (NC)
Pin 2 (RFin)
Pin 3 (NC)
Pin 4 (NC)
Pin 8 (NC)
Pin 7 (RFout, VD)
Pin 6 (NC)
Pin 5 (RBias)
2YX
Top View
Pin 1 (NC)
GND
Pin 2 (RFin)
Pin 3 (NC)
Pin 4 (NC)
Pin 8 (NC)
Pin 7 (RFout, VD)
Pin 6 (NC)
Pin 5 (RBias)
Bottom View
Note:
Use Die Attach Padded for electrical grounding and thermal dissipa-
tion
Simplied Schematic
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 1A)
Refer to Avago Application Note A004R:
Electrostatic Discharge Damage and Control.
1, 3, 4, 6, 8
R
bias
I
bias
V
bias
5 7
2
Bias
Vd
Id
=
I
ds +
I
bias
I
ds
(NC)
RFout, VD
RFin
2
MGA-425P8 Absolute Maximum Ratings
[1]
Absolute
Symbol Parameter Units Maximum
V
DS
Drain – Supply Voltage
[2]
V 5
I
DS
Drain Current
[2]
A 100
P
diss
Total Power Dissipation
[3]
W 0.5
P
in
max. RF Input Power dBm 13
T
CH
Channel Temperature °C 150
T
STG
Storage Temperature °C -65 to 150
θ
ch_b
Thermal Resistance
[4]
°C/W 34.2
Notes:
1. Operation of this device above any
one of these parameters may cause per-
manent damage.
2. Assuming DC quiescent conditions.
3. Board (package belly) temperature T
B
is
25°C. Derate 29 mW/°C for T
B
> 133
°C.
4. Channel-to-board thermal resistance mea-
sured using 150°C Liquid Crystal Measure-
ment method.
Product Consistency Distribution Charts at 5.25 GHz, 3.3V RBias = 680Ω
[5, 6]
Notes:
5. Distribution data sample size is 500
samples taken from 3 dierent wafers and
3 dierent lots. Future wafers allocated
to this product may have nominal values
anywhere between the upper and lower
limits.
6. Measurements are made on production
test board, which represents a trade-o
between optimal OIP3, P1dB, Gain and
VSWR. Circuit losses have been de-embed-
ded from actual measurements.
OIP3 (dBm)
Figure 1. OIP3;
LSL = 29 dBm, Nominal = 32.9 dBm.
29
31
33
35 37
150
120
90
60
30
0
Stdev = 0.9
-3 Std
GAIN (dB)
Figure 2. GAIN;
LSL = 14.5 dB, Nominal = 16 dB, USL= 17.5 dB.
14.8
15.3
15.8
16.3 16.8 17.3
180
150
120
90
60
30
0
Stdev = 0.28
-3 Std
+3 Std
P1dB (dBm)
Figure 4. P1dB;
LSL = 18.25 dBm, Nominal = 20.3 dBm.
18.3
19.3
20.3
21.3 22.3
240
200
160
120
80
40
0
Stdev = 0.46
-3 Std
PAE (%)
Figure 5. PAE;
LSL = 33.5 %, Nominal = 47 %.
34
39
44
49 54 59
180
150
120
90
60
30
0
Stdev =
3
-3 Std
IDS (mA)
Figure 3. IDS;
LSL = 51 mA, Nominal = 58 mA, USL = 65 mA.
51
5553
57
59 61 63 65
250
200
150
100
50
0
Stdev =
1.22
-3 Std
+3 Std
3
0.6 pF
1 pF
0.6 pF
1.5 pF
2
7
2.2 pF
3.3 nH
2.2 µF
2.7 nH
1000 pF
Vd= +3.3V
5
1, 3, 4, 6, 8
MGA-425P8
680
15
MGA-425P8 Electrical Specications
T
A
= 25°C, DC bias for RF parameter is Vds = 3.3V and R
bias
= 680Ω (unless specied otherwise)
Symbol Parameter and Test Condition Units Min. Typ. Max.
I
ds
Device Current mA 51 58 65
G Gain
[1]
Freq=5.25 GHz dB 14.5 16 17.5
NF Noise Figure
[1]
Freq=5.25 GHz dB 1.7
OIP3 Output 3
rd
Order Intercpt Point
[1,2]
Freq=5.25 GHz dBm 29 32.9
P1dB Output 1dB Compressed
[1]
Freq=5.25 GHz dBm 18.25 20.3
PAE Power Added Eciency
[1]
Freq=5.25 GHz % 33.5 47
EVM Error Vector Magnitude
[3]
at Pout=13.3 dBm % 5
EVM Error Vector Magnitude
[3]
at Pout=12 dBm % 3
Notes:
1. Measurement obtained using production test board described in Figure 6 and PAE tested at P1dB condition.
2. 5.25GHz OIP3 test condition: F1 = 5.25 GHz, F2 = 5.255 GHz and Pin = -5 dBm per tone.
3. EVM test condition: 802.11a 64QAM/54 Mbps OFDM Modulation and Freq = 5.25 GHz.
Figure 6. Simplied schematic of 5.25 GHz production test board used for
Gain, NF, OIP3 , P1dB, PAE and EVM measurements. This circuit achieves a
trade-o between optimal OIP3, P1dB and VSWR. Circuit losses have been
de-embedded from actual measurements.

MGA-425P8-BLK

Mfr. #:
Manufacturer:
Broadcom / Avago
Description:
RF Amplifier Amplifier RFIC GaAs
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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