MGA-31689
0.5 W High Gain Driver Ampli er
Data Sheet
Description
Avago Technologies’ MGA-31689 is a 0.5 W, high Gain,
high performance Driver Ampli er MMIC, housed in a
standard SOT-89 plastic package. The device required
simple matching components to achieve optimum per-
formance within speci c 100 to 200 MHz bandwidth.
MGA-31689 is especially ideal for wireless infrastructure
applications that operate within the 1.5 GHz to 3 GHz
frequency range. With high IP3 and low noise  gure, the
MGA-31689 may be utilized as a driver ampli er in the
transmit chain and as second or third stage LNA in the re-
ceive chain. For optimum performance at lower frequency
from 450 MHz to 1500 MHz, MGA-31589 is recommended.
MGA-31689’s high gain and high linearity features are
achieved through the use of Avago Technologies’ propri-
etary 0.25 m GaAs Enhancement-mode pHEMT process.
Pin connections and Package Marking
Note:
Top View: Package marking provides orientation and identi cation
“16” = Device Code
“X” = Date Code character indenti es month of manufacturing
Features
 ROHS compliant
 Halogen free
 High linearity at low DC bias power [1]
 High Gain
 Low noise  gure
 High OIP3
 Advanced enhancement mode PHEMT Technology
 Excellent uniformity in product speci cation
 SOT-89 standard package
Speci cations
At 1900 MHz, Vdd = 5 V, Idd = 168 mA (typical) at 25° C
 OIP3 = 44.9 dBm
 Noise Figure = 1.9 dB
 Gain = 18.1 dB
 P1dB = 27.6 dBm
 IRL = 14.0 dB, ORL = 11.5 dB
Note:
1. The MGA-31689 has a superior LFOM of 15.5. Linearity Figure of Merit
(LFOM) is essentially OIP3 divided by DC bias power.
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 150 V
ESD Human Body Model = 650 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
Figure 1. Simpli ed Schematic diagram
L
RF OUT
C
RF IN
VDD
C
C
C
CCL
MGA-31689 C
L
16X
Top View
RFin GND RFout
#1 #2 #3
Bottom View
RFout GND RFin
#3 #2 #1
2
MGA-31689 Absolute Maximum Rating [1]
Symbol Parameter Units Absolute Max.
Vdd, max Drain Voltage, RF output to ground V 5.5
PdPower Dissipation (2) mW 1050
Pin CW RF Input Power dBm 15
TjJunction Temperature °C 150
TSTG Storage Temperature °C -65 to 150
Thermal Resistance
Thermal Resistance [3]
(Vdd = 5.0 V, Idd = 168 mA, Tc = 85° C),
jc = 44° C/W
Notes:
1. Operation of this device in excess of any of
these limits may cause permanent damage.
2. Source lead temperature is 25° C. Derate 22.7
mW/° C for TL>103.8° C.
3. Thermal resistance measured using 150° C
Infra-Red Microscopy Technique.
MGA-31689 Electrical Speci cation [1]
TC = 25° C, Zo = 50 , Vdd = 5 V, unless speci ed.
Symbol Parameter and Test Condition
Frequency
(MHz) Units Min. Typ. Max.
Ids Quiescent Current NA mA 150 168 195
NF Noise Figure 1900
2600
dB 1.9
2.2
2.8
Gain Gain 1900
2600
dB 16.6 18.1
16.7
19.6
OIP3 Output Third Order Intercept Point 1900 [2]
2600 [3]
dBm 41 44.9
44.8
P1dB Output Power at 1 dB Gain Compression 1900
2600
dBm 26.5 27.6
26.8
PAE Power Added E ciency at P1dB 1900
2600
% 48.0
42.6
IRL Input Return Loss 1900
2600
dB 14.0
13.2
ORL Output Return Loss 1900
2600
dB 11.5
10.5
ISOL Isolation 1900
2600
dB 27.3
27.6
Note :
1. Measurements obtained from a test circuit described in Figure 27.
2. OIP3 test condition: F1 - F2 = 1.0 MHz, with input power of -6 dBm per tone measured at worst case side band.
3. OIP3 test condition: F1 - F2 = 1.0 MHz, with input power of -5 dBm per tone measured at worst case side band.
3
150 160 170 180 190 27 28 29
17 1816 19 20 321
40 41 42 43 44 45 46 47 48 49 50
LSL LSLUSL
LSL USL USL
LSL
MGA-31689 Consistency Distribution Charts [1,2]
Notes:
1. Data sample size is 2700 samples taken from 5 wafers and 3 di erent
wafer lots. Future wafers allocated to this product may have nominal
values anywhere between the upper and lower limits.
2. Measurements are made on production test board which represents
a trade o between nominal Gain, NF, OIP3, and OP1dB. Circuit losses
have been de-embedded from actual measurements.
Figure 6. OIP3 at 1900 MHz, Vdd = 5 V, LSL = 41.0 dBm, Nominal = 44.9 dBm
Figure 2. Idd at Vdd = 5 V, LSL = 150 mA , Nominal = 168 mA, USL = 195 mA
Figure 4. Gain at 1900 MHz, Vdd = 5 V, LSL = 16.6 dB, Nominal = 18.1 dB,
USL = 19.6 dB
Figure 3. OP1dB at 1900 MHz, Vdd = 5 V, LSL = 26.3 dBm, Nominal = 27.6
dBm
Figure 5. NF at 1900 MHz, Vdd = 5 V, Nominal = 1.9 dB, USL = 2.8 dB
4
MGA-31689 Application Circuit Data for 1900 MHz
TA = 25° C, Vdd = 5.0 V, Idd = 168 mA
Figure 7. Over Temperature OIP3 vs Frequency Figure 8. Over Temperature OP1dB vs Frequency
Figure 9. Over Temperature Gain vs Frequency Figure 10. Over Temperature IRL vs Frequency
Figure 11. Over Temperature ORL vs Frequency Figure 12. Over Temperature Isolation vs Frequency
30
35
40
45
50
1700 1800 1900 2000
Frequency (MHz)
OIP3 (dBm)
17.8
18.0
18.2
18.4
18.6
18.8
1700 1800 1900 2000
Frequency (MHz)
Gain( dB)
25
26
27
28
29
30
1700 1800 1900 2000
Frequency (MHz)
OP1dB (dBm)
-20
-18
-16
-14
-12
-10
-8
-6
1700 1800 1900 2000
Frequency (MHz)
IRL (dB)
-30
-29
-28
-27
-26
-25
1700 1800 1900 2000
Frequency (MHz)
Isolation (dB)
-20
-18
-16
-14
-12
-10
-8
-6
1700 1800 1900 2000
Frequency (MHz)
ORL (dB)
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
5
1.0
1.5
2.0
2.5
3.0
3.5
1700 1800 1900 2000
Frequency (MHz)
NF (dB)
30
35
40
45
50
891011 12131415161718
Pout (dBm)
OIP3 (dBm)
-74
-72
-70
-68
-66
-64
-62
-60
-58
-56
-54
-52
-50
-48
-46
-44
-42
10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0
Pout
ACLR (dBc)
25° C
85° C
-40° C
25° C
85° C
-40° C
1900 MHz @ 85° C
1900 MHz @ 25° C
1900 MHz @ -40° C
W-CDMA 3GPP
Test Model 1+64 DPCH, 3.84 MHz BW
0
1
2
3
4
5
05101520
Frequency (GHz)
K-factor
25˚C
85˚C
-40˚C
MGA-31689 Application Circuit Data for 1900 MHz (continued)
Figure 13. Over Temperature Noise Figure vs Frequency Figure 14. Over Temperature OIP3 vs Pout at 1900 MHz
Figure 15. Over Temperature ACLR vs Pout at 1900 MHz Figure 16. Over Temperature K-factor vs Frequency
6
30
35
40
45
50
2500 2550 2600 2650 2700
Frequency (MHz)
OIP3 (dBm)
15.5
16.0
16.5
17.0
17.5
18.0
18.5
2500 2550 2600 2650 2700
Frequency (MHz)
Gain( dB)
25
26
27
28
29
30
2500 2550 2600 2650 2700
Frequency (MHz)
OP1dB (dBm)
-25
-23
-21
-19
-17
-15
-13
-11
-9
-7
-5
2500 2550 2600 2650 2700
Frequency (MHz)
IRL (dB)
-30
-29
-28
-27
-26
-25
2500 2550 2600 2650 2700
Frequency (MHz)
Isolation (dB)
-20
-18
-16
-14
-12
-10
-8
-6
2500 2550 2600 2650 2700
Frequency (MHz)
ORL (dB)
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
MGA-31689 Application Circuit Data for 2600 MHz
TA = 25° C, Vdd = 5.0 V, Idd = 168 mA
Figure 17. Over Temperature OIP3 vs Frequency Figure 18. Over Temperature OP1dB vs Frequency
Figure 19. Over Temperature Gain vs Frequency Figure 20. Over Temperature IRL vs Frequency
Figure 21. Over Temperature ORL vs Frequency Figure 22. Over Temperature Isolation vs Frequency
7
0.5
1.0
1.5
2.0
2.5
3.0
3.5
2500 2550 2600 2650 2700
Frequency (MHz)
NF (dB)
-74
-72
-70
-68
-66
-64
-62
-60
-58
-56
-54
-52
-50
-48
-46
-44
-42
10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0
Pout (dBm)
ACLR (dBc)
30
35
40
45
50
7 8 9 10111213141516
Pout (dBm)
OIP3 (dBm)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0 5 10 15 20
Frequency (GHz)
K-factor
25° C
85° C
-40° C
25° C
85° C
-40° C
25° C
85° C
-40° C
W-CDMA 3GPP
Test Model 1+64 DPCH, 3.84 MHz BW
2.6 GHz @ 85° C
2.6 GHz @ 25° C
2.6 GHz @ -40° C
MGA-31689 Application Circuit Data for 2600 MHz (continued)
Figure 23. Over Temperature Noise Figure vs Frequency Figure 24. Over Temperature OIP3 vs Pout at 2600 MHz
Figure 25. Over Temperature ACLR vs Pout at 2600 MHz Figure 26. Over Temperature K-factor vs Frequency
8
Application Circuit Description and Layout
Figure 27. Circuit diagram Figure 28. Demo board
Bill of Materials
Circuit
Symbol Size
Description Description
For 1700 – 2000 MHz For 2500 – 2700 MHz
Value Part Number Manufacturer Value Part Number Manufacturer
C1 0402 3.0 pF CM05CH3R0C50AH Kyocera 5.1 pF GJM1555C1H5R1DB01E Murata
C2 0402 2.2 pF CM05CH2R2C50AH Kyocera 1.6 pF CM05CH1R6C50AH Kyocera
C3 0402 1.8 pF CM05CH1R8C50AH Kyocera 1.3 pF GJM1555C1H1R3CB01E Murata
C4 0402 3.0 pF CM05CH3R0C50AH Kyocera 3.3 pF CM05CH3R3C50AH Kyocera
C5 0402 20 pF GJM1555C1H200JB01D Murata 20 pF GJM1555C1H200JB01D Murata
C6 0402 0.1 FGRM155R71C104KA88D Murata 0.1 FGRM155R71C104KA88D Murata
C7 0805 2.2 FGRM21BR61A225KA01L Murata 2.2 FGRM21BR61A225KA01L Murata
C8* 0402 10 pF GJM1555C1H100JB01D Murata 10 pF GJM1555C1H100JB01D Murata
C9* 0402 10 pF GJM1555C1H100JB01D Murata 10 pF GJM1555C1H100JB01D Murata
L1 0402 4.7 nH LLP1005-FH4N7C Toko 4.7 nH LLP1005-FH4N7C Toko
L2** 0402 12 nH LL1005-FHL12NJ Toko 18 nH 0603CS-18NXJLW Coilcraft
L3 0402 3.9 nH LLP1005-FH3N9C Toko 4.7 nH LLP1005-FH4N7C Toko
Notes:
* As blocking capacitor, not required in actual application circuit.
** For 2.5 – 2.7 GHz, the component size for L2 is 0603.
For best performance, MGA-31689 requires only simple input and output matching network. The C3, C4, and L3 act
as the output tuning circuitry for matching and OIP3 optimization. Bandpass network C1,C2, and L1 forms the input
matching network. To bias MGA-31689, a +5 V supply (Vdd) is connected to the output pin thru a RF choke, L2 (which
isolates the inband signal from the DC supply). The low frequency bypass capacitor C6 and C7 helps to eliminate out low
frequency signals from power supply. Blocking capacitors are required for its input (C8) and output (C9), to isolate the
supply voltage from succeeding circuits. The recommended output tuning is for achieving wideband best OIP3, while
meeting typical speci cations for other parameters.
L2
RF OUTRF IN
VDD
C8 C1C4 C9
C6
C5
C7
C2 C3 L3L1
MGA-31689
Zo = 50 Ω
L = 2.53 mm
9.54° at 1.9 GHz
SOT_89
MGA 31689
Oct 2010
W = 0.57 mm
G = 0.59 mm
VDD
GND
INOUT
C8
C1
C2 C3
C4
C5
C6
C7
C9
L1
L2
L3
9
MGA-31689 Typical Scatter Parameters [1]
TA = 25° C, Vdd = 5.0 V, Idd = 168 mA, Zo = 50
Freq
(GHz)
S11 S11 S21 S21 S12 S12 S22 S22 k
(dB) (ang) (dB) (ang) (dB) (ang) (dB) (ang)
0.1 -1.73 -176.29 19.41 135.64 -34.95 5.14 -4.23 -174.40 1.029
0.2 -1.60 178.23 16.49 141.07 -35.14 -0.95 -4.66 172.00 1.346
0.3 -1.55 174.62 15.27 143.40 -35.75 -2.88 -5.80 165.82 1.618
0.4 -1.50 171.32 14.55 145.29 -36.43 -0.20 -6.98 167.49 1.855
0.5 -1.52 168.20 14.40 146.24 -36.57 5.31 -7.22 175.57 1.933
0.6 -1.58 165.25 14.62 145.18 -36.05 10.02 -6.26 179.96 1.814
0.7 -1.65 162.49 14.90 141.90 -35.29 11.91 -5.22 178.37 1.655
0.8 -1.72 159.87 15.10 137.34 -34.59 11.60 -4.50 173.97 1.536
0.9 -1.79 157.31 15.19 132.24 -34.01 10.31 -4.08 168.71 1.463
1.0 -1.89 154.32 15.34 126.71 -33.44 8.33 -3.94 163.07 1.418
1.5 -2.17 141.02 15.11 101.04 -31.83 -2.42 -4.15 138.15 1.386
2.0 -2.41 128.13 14.75 77.42 -30.87 -14.23 -5.10 116.88 1.440
2.5 -2.69 115.39 14.53 53.86 -30.25 -28.05 -6.72 96.12 1.529
3.0 -3.03 103.52 14.42 29.25 -30.06 -44.01 -9.50 75.25 1.662
3.5 -3.39 93.23 14.35 2.74 -30.52 -61.83 -15.50 57.72 1.871
4.0 -3.67 84.13 14.12 -26.21 -32.05 -80.46 -23.80 158.07 2.262
4.5 -3.65 74.49 13.50 -57.21 -35.42 -94.95 -10.76 161.61 3.117
5.0 -3.11 67.17 12.26 -87.21 -40.85 -79.96 -6.03 138.92 4.832
5.5 -2.55 52.06 10.64 -117.67 -38.54 -40.42 -3.77 111.77 2.841
6.0 -2.04 35.42 8.58 -146.15 -34.15 -43.36 -2.55 85.59 1.221
6.5 -1.65 19.73 6.24 -171.85 -31.76 -57.66 -1.88 61.65 0.639
7.0 -1.41 5.70 3.84 165.22 -30.44 -73.21 -1.53 40.17 0.409
7.5 -1.29 -8.07 1.51 144.01 -29.63 -88.71 -1.34 20.48 0.350
8.0 -1.26 -22.64 -0.84 123.57 -29.21 -104.42 -1.24 1.84 0.435
8.5 -1.20 -38.39 -3.30 103.77 -29.15 -120.34 -1.20 -15.58 0.624
9.0 -1.10 -53.40 -5.95 85.47 -29.44 -135.19 -1.15 -31.33 0.904
9.5 -0.96 -65.64 -8.67 69.50 -29.93 -148.24 -1.09 -45.13 1.216
10.0 -0.85 -74.87 -11.29 55.67 -30.40 -159.70 -1.03 -57.60 1.581
10.5 -0.81 -82.71 -13.76 42.92 -30.75 -170.49 -1.00 -69.49 2.189
11.0 -0.79 -90.85 -16.17 30.60 -31.05 178.21 -0.99 -81.33 3.145
11.5 -0.79 -100.10 -18.70 18.42 -31.52 166.73 -0.98 -93.00 4.686
12.0 -0.75 -109.77 -21.50 7.20 -32.09 155.73 -0.94 -103.75 6.618
12.5 -0.70 -118.76 -24.60 -2.08 -32.83 145.29 -0.87 -112.91 9.242
13.0 -0.64 -126.30 -27.95 -8.47 -33.59 136.46 -0.80 -120.17 13.003
13.5 -0.62 -133.09 -31.61 -11.77 -34.26 128.95 -0.75 -126.39 19.930
14.0 -0.64 -140.44 -35.69 -9.45 -34.65 120.99 -0.76 -132.81 35.210
14.5 -0.66 -149.01 -39.92 4.91 -34.91 112.42 -0.81 -140.46 65.138
15.0 -0.66 -158.40 -41.70 37.45 -35.05 103.83 -0.86 -149.34 86.470
15.5 -0.62 -166.86 -39.37 61.97 -34.99 96.58 -0.89 -158.78 64.814
16.0 -0.57 -173.43 -36.28 68.60 -34.52 89.89 -0.94 -167.95 42.097
16.5 -0.56 -178.29 -33.36 65.78 -33.43 81.69 -0.88 -176.61 24.984
17.0 -0.60 176.64 -31.15 57.85 -32.44 71.56 -0.89 174.74 18.590
17.5 -0.71 169.61 -29.31 49.07 -31.42 62.09 -0.94 165.95 16.390
18.0 -0.82 159.90 -27.65 39.55 -30.24 52.70 -1.02 156.90 14.673
18.5 -0.90 148.46 -26.20 29.22 -29.05 42.85 -1.09 148.57 12.648
19.0 -0.88 137.36 -25.07 18.00 -28.07 31.79 -1.14 140.81 10.113
19.5 -0.85 129.30 -24.17 9.00 -27.18 23.70 -1.21 134.72 8.495
20.0 -0.89 123.82 -23.25 1.71 -26.14 17.14 -1.45 130.08 8.192
10
MGA-31689 Typical Noise Parameters [1]
TA = 25° C, Vdd = 5.0 V, Idd = 168 mA, Zo = 50
Freq
(GHz)
Fmin
(dB)
opt
Mag
opt
Ang Rn/Z0
Ga
(dB)
0.50 4.43 0.83 -168.90 0.14 19.94
0.80 3.72 0.787 -160.90 0.17 20.53
0.90 3.49 0.776 -159.50 0.15 20.50
1.00 3.20 0.763 -153.50 0.14 20.50
1.50 2.45 0.726 -138.50 0.24 19.74
2.00 1.95 0.693 -126.20 0.22 18.81
2.50 1.30 0.656 -114.50 0.27 18.09
3.00 1.11 0.636 -104.50 0.27 17.43
3.50 1.08 0.586 -96.10 0.40 16.96
4.00 1.60 0.55 -89.50 0.50 16.56
4.50 2.34 0.517 -70.80 0.77 16.32
5.00 3.50 0.472 -56.60 1.20 15.99
5.50 5.06 0.447 -22.80 1.80 14.99
6.00 7.03 0.411 -17.02 2.60 14.68
Note:
1. Measurements are made using 10 mils Rogers RO4350 TRL Board.
11
Part Number Ordering Information
Part Number No. of Devices Container
MGA-31689-BLKG 100 Antistatic Bag
MGA-31689-TR1G 3000 13" Tape/Reel
SOT89 Package Dimensions
DIMENSIONS IN MILLIMETERS DIMENSIONS IN INCHES
SYMBOLS MIN NOM MAX MIN NOM MAX
A 1.40 1.50 1.60 0.055 0.059 0.063
L 0.89 1.04 1.20 0.0350 0.041 0.047
b 0.36 0.42 0.48 0.014 0.016 0.018
b1 0.41 0.47 0.53 0.016 0.018 0.030
C 0.38 0.40 0.43 0.014 0.015 0.017
D 4.40 4.50 4.60 0.173 0.177 0.181
D1 1.40 1.60 1.75 0.055 0.062 0.069
E 3.94 - 4.25 0.155 - 0.167
E1 2.40 2.50 2.60 0.094 0.098 0.102
e1 2.90 3.00 3.10 0.114 0.118 0.122
H 0.35 0.40 0.45 0.014 0.016 0.018
S 0.65 0.75 0.85 0.026 0.030 0.034
e 1.40 1.50 1.60 0.054 0.059 0.063
MATTE FINISH
POLISH
POLISH
D
D1
H
E1
E
L
b
e
e1S
C
b1 b
A
OR
12
Device Orientation
Tape Dimensions
DIMENSIONS IN MM
NOTES:
1. 10 SPROCKET HOLE PITCH CUMULATIVE TOLERANCE ±0.2
2. CAMBER IN COMPLIANCE WITH EIA 481
3. POCKET POSITION RELATIVE TO SPROCKET HOLE MEASURED
AS TRUE POSITION OF POCKET, NOT POCKET HOLE
12.0 ± .3
Ao = 4.60
Bo = 4.90
Ko = 1.90
5.50 ± .05
SEE NOTE 3
1.75 ± .10
8.00
Ø 1.5 +0.1/-0.0
2.00 ± .05 SEE NOTE 3
4.00 SEE NOTE 1
SECTION A - A
Ø 1.50 MIN.
Ao
KoR 0.3 TYP.
R 0.3 MAX.
0.30 ± .05
A
A
Bo
USER FEED
DIRECTIONCOVER TAPE
CARRIER
TAPE
REEL
16X
16X
16X
16X
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved.
AV02-2745EN - August 1, 2012
Reel Dimensions – 13” Reel
Ø 20.2
MIN
2.0 ± 0.5
Ø 13.0 +0.5
-0.2
102.0
REF
330.0
REF
8.4
(MEASURED AT HUB)
(MEASURED AT HUB)
"A"
ATTENTION
Electrostatic Sensitive Devices
Safe Handling Required
MINNEAPOLIS USA
U.S PAT 4726534
R
LOKREEL R
11.1 MAX.
Detail "A"
Detail "B"
PS
6
6
PS
1.5
88 REF
96.5
+0.3
- 0.2
Dimensions in mm