ALM-31122
700MHz - 1GHz
1-Watt High Linearity Amplier
Data Sheet
Description
Avago Technologies’ ALM-31122 is a high linearity 1 Watt
PA with good OIP3 performance and exceptionally good
PAE at 1dB gain compression point, achieved through the
use of Avago Technologies’ proprietary 0.25um GaAs En-
hancement-mode pHEMT process.
All matching components are fully integrated within the
module. This makes the ALM-31122 extremely easy to use.
The adjustable temperature-compensated internal bias
circuit allows the device to be operated at either class A or
class AB operation.
The ALM-31122 is housed inside a miniature 5.0 x 6.0 x 1.1
mm3 22-lead multiple-chips-on-board (MCOB) module
package.
Component Image
5.0 x 6.0 x 1.1 mm3 22-lead MCOB
Features
x Fully matched, input and output
x High linearity and P1dB
x Unconditionally stable across load condition
x Built-in adjustable temperature-compensated internal
bias circuitry
x GaAs E-pHEMT Technology[1]
x 5V supply
x Excellent uniformity in product specications
x Tape-and-Reel packaging option available
x MSL-3 and Lead-free
x High MTTF for base station application
Specications
900 MHz; 5V, 394mA (typical)
x 15.6 dB Gain
x 47.6 dBm Output IP3
x 31.6 dBm Output Power at 1dB gain compression
x 52.5% PAE at P1dB
x 2 dB Noise Figure
Applications
x Class A driver amplier for GSM/CDMA Base Stations.
x General purpose gain block.
Note:
1. Enhancement mode technology employs positive gate voltage,
thereby eliminating the need of negative gate voltage associated
with conventional depletion mode devices.
Notes:
Package marking provides orientation and identication
“31122” = Device Part Number
“WWYY” = Work week and Year of manufacture
“XXXX” = Last 4 digit of Lot number
31122
WWYY
XXXX
1
2
3
4
5
6
7
89
10
1112
13
14
15
16
17 18 19 21
20 22
GND
GND
VDD1
GND
VCTRL
GND
GND
GND
GND
VDD2
GND
NC
GND
GND
GND
RF_OUT
GND
GND
GND
GND
GND
NC
GND
GND
RF_IN
GND
Top View Bottom View
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 80 V
ESD Human Body Model = 200 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
2
.
34 .36 .38 .40 .42 .44 44 46 48 50 52
30 30.5 31 31.5 32 32.5 33 40 45 50 55 60
13.5 14 14.5 15 15.5 16 16.5 17 17.5
CPK = 2.22
Std Dev = 7
CPK = 4.21
Std Dev = 0.133
CPK = 4.29
Std Dev = 0.208
CPK = 5.73
Std Dev = 0.097
Std Dev = 0.65
Absolute Maximum Rating [2] TA=25°C
Symbol Parameter Units Absolute Max.
Vdd, max Device Voltage, RF output to ground V 5.5
Ids, max Device Drain Current mA 750
Vctrl,max Control Voltage V 5.5
Pin,max CW RF Input Power dBm 25
Pdiss Total Power Dissipation [4] W 4.125
Tj,max Junction Temperature oC 150
TSTG Storage Temperature oC -65 to 150
Product Consistency Distribution Charts[5, 6]
Thermal Resistance [3] θjc = 22 °C/W
(Vdd = 5V, Idd = 400mA, Tc = 85 °C)
Notes:
2. Operation of this device in excess of any of
these limits may cause permanent damage.
3. Thermal resistance measured using Infra-Red
measurement technique.
4. Board (bottom of the device) temperature TB
is 25 °C. Derate 45.7mW/ °C for Tc > 59.3 °C.
Figure 1. Ids; LSL = 340mA, nominal = 394mA, USL = 440mA Figure 2. OIP3; LSL = 45dBm, nominal = 47.6dBm
Figure 3. P1dB; LSL = 30dBm, nominal = 31.6dBm Figure 4. PAE at P1dB; nominal = 52.5%
Figure 5. Gain; LSL=13.7dB, Nominal = 15.6dB, USL=17.3dB
Notes:
5. Distribution data sample size is 500 samples taken from 3 dierent
wafers. TA = 25°C, Vdd = 5V, Vctrl = 5V, RF performance at 900MHz
unless otherwise specied. Future wafers allocated to this product
may have nominal values anywhere between the upper and lower
limits.
6. Measurements are made on a production test board. Input trace
losses have not been de-embedded from actual measurements.
3
Electrical Specications [7]
TA = 25 °C, Vdd =5V, Vctrl=5V, RF performance at 900MHz, measured on demo board (see Figure 7) unless otherwise
specied.
Symbol Parameter and Test Condition Units Min. Typ. Max.
Ids Quiescent current mA 340 394 440
Ictrl Vctrl current mA - 10.4 -
Gain Gain dB 13.7 15.6 17.3
OIP3 [8] Output Third Order Intercept Point dBm 45 47.6 -
OP1dB Output Power at 1dB Gain Compression dBm 30 31.6 -
PAE Power Added Eciency % - 52 -
NF Noise Figure dB - 2.0 -
S11 Input Return Loss, 50Ω source dB - -14 -
S22 Output Return Loss, 50Ω load dB - -11 -
S12 Reverse Isolation dB - -21 -
Notes:
7. Measurements at 900MHz obtained using demo board described in Figure 6 and 7.
8. 900MHz OIP3 test condition: FRF1 - FRF2 = 10MHz with input power of -5dBm per tone measured at worse case side band.
9. Use proper bias, heat sink and de-rating to ensure maximum channel temperature is not exceeded. See absolute maximum ratings and
application note (if applicable) for more details.
4
S-Parameter (Vdd=5V, Vctrl=5V, T=25ºC, matched 50 ohm)
Freq (GHz) S11 (dB) S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang)
0.1 -0.40 161.57 -56.46 -131.10 -74.70 50.37 -0.21 -167.06
0.2 -0.51 143.33 -20.88 155.28 -71.37 5.78 -0.42 152.48
0.3 -0.64 123.10 -4.90 78.86 -55.27 31.87 -0.81 119.79
0.4 -0.97 100.16 2.01 29.11 -45.70 -10.14 -1.48 83.90
0.5 -3.28 69.55 13.69 -47.22 -32.41 -84.32 -8.06 40.74
0.6 -6.13 54.69 16.12 -123.54 -27.69 -155.41 -9.00 54.17
0.7 -10.31 27.71 16.82 -180.00 -24.70 152.14 -9.89 -3.64
0.8 -23.89 55.10 16.74 130.34 -22.96 105.17 -13.61 -100.33
0.9 -14.77 105.79 15.74 87.60 -22.25 65.27 -12.57 176.42
1 -13.21 91.82 14.57 51.68 -21.84 31.78 -12.82 139.02
1.1 -13.47 100.03 13.64 17.13 -21.30 0.28 -13.65 141.76
1.2 -9.78 107.59 12.28 -18.54 -21.25 -33.26 -9.12 146.85
1.3 -6.06 89.99 10.25 -51.04 -22.17 -65.31 -5.21 126.94
1.4 -4.45 64.92 7.92 -79.94 -23.37 -90.84 -3.20 102.83
1.5 -4.09 37.55 5.59 -104.82 -24.18 -116.75 -2.25 80.60
1.6 -4.99 6.87 4.04 -131.36 -25.39 -141.93 -1.76 61.32
1.7 -8.65 -35.71 2.00 -161.35 -26.41 -170.62 -1.50 44.03
1.8 -16.99 -160.79 -0.68 162.55 -28.50 154.80 -1.25 28.09
1.9 -6.77 96.21 -5.56 123.70 -32.83 118.73 -1.00 12.40
2 -3.34 56.27 -12.69 98.31 -39.13 96.44 -0.86 -3.19
2.1 -2.06 28.78 -19.61 86.97 -45.68 87.50 -0.79 -18.37
2.2 -1.51 7.19 -27.76 81.73 -54.76 99.10 -0.87 -33.17
2.3 -1.23 -11.32 -36.07 112.46 -57.67 139.01 -0.86 -48.02
2.4 -1.05 -27.87 -37.39 154.20 -58.14 142.28 -0.80 -61.96
2.5 -0.95 -43.44 -36.83 170.21 -58.26 157.78 -0.88 -76.45
2.6 -0.89 -58.56 -36.30 174.51 -57.89 166.40 -0.84 -90.52
2.7 -0.84 -73.00 -37.01 171.55 -58.66 170.53 -0.81 -104.83
2.8 -0.82 -87.26 -38.58 166.13 -57.39 161.39 -0.83 -119.34
2.9 -0.81 -101.32 -40.69 163.37 -65.56 143.93 -0.85 -133.69
3 -0.82 -115.02 -44.64 165.47 -64.04 168.75 -0.89 -147.84
3.1 -0.73 -129.28 -51.00 177.12 -78.18 -179.56 -0.90 -162.35
3.2 -0.67 -142.15 -52.03 -119.97 -65.69 -57.72 -0.94 -176.34
3.3 -0.83 -155.79 -46.09 -86.42 -60.71 -73.52 -1.00 169.67
3.4 -0.77 -169.35 -42.29 -84.98 -57.55 -67.98 -1.04 156.06
3.5 -0.83 177.49 -40.33 -84.89 -55.64 -72.70 -1.09 142.51
3.6 -0.80 164.50 -37.48 -90.22 -53.33 -84.70 -1.15 129.44
3.7 -0.82 151.70 -36.01 -99.27 -52.54 -93.18 -1.13 116.92
3.8 -0.82 139.04 -35.53 -105.37 -50.50 -108.04 -1.13 104.78
3.9 -0.82 126.18 -34.79 -108.36 -50.05 -103.14 -1.12 92.23
4 -0.84 114.91 -33.51 -113.86 -47.08 -104.84 -1.07 80.08
5
Freq (GHz) S11 (dB) S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB) S22 (ang)
4.1 -0.88 102.20 -32.79 -120.00 -46.42 -121.38 -1.05 67.91
4.2 -0.81 90.15 -31.28 -121.41 -46.79 -129.51 -1.01 56.46
4.3 -0.84 78.32 -31.18 -140.85 -46.47 -123.31 -0.91 45.15
4.4 -0.95 66.58 -31.86 -141.72 -44.69 -133.44 -0.94 33.69
4.5 -0.78 56.07 -30.65 -144.85 -44.58 -138.87 -0.96 22.26
4.6 -0.76 45.08 -30.41 -152.26 -43.15 -136.57 -0.94 11.27
4.7 -0.77 33.87 -29.68 -156.30 -41.78 -150.84 -0.96 0.29
4.8 -0.76 23.52 -28.33 -161.68 -41.86 -156.50 -0.96 -10.69
4.9 -0.75 13.01 -28.46 -172.40 -41.55 -161.09 -0.96 -21.59
5 -0.81 2.46 -28.80 -173.45 -40.46 -161.45 -0.98 -32.30
5.1 -0.76 -7.68 -27.74 -177.47 -39.81 -170.16 -1.01 -43.07
5.2 -0.80 -17.85 -27.64 177.01 -38.68 -171.79 -1.05 -54.42
5.3 -0.80 -27.95 -26.57 176.02 -37.39 -179.28 -1.08 -65.25
5.4 -0.82 -37.99 -25.42 167.11 -37.00 173.82 -1.15 -75.86
5.5 -0.77 -47.71 -25.10 160.50 -36.18 170.82 -1.15 -88.15
5.6 -0.84 -58.06 -24.28 156.30 -35.02 167.10 -1.28 -98.26
5.7 -0.83 -68.29 -23.30 149.56 -33.80 160.20 -1.40 -110.35
5.8 -0.95 -78.17 -22.36 142.93 -32.53 153.88 -1.27 -123.04
5.9 -0.95 -88.30 -21.57 135.56 -31.57 145.84 -1.37 -134.92
6 -0.96 -98.85 -20.65 129.16 -30.18 140.35 -1.83 -147.93
6
Demo Board Schematic
Vsupply
3
8
Vsense
Bias
C5 C4
C8 C7
Module Outline
50-Ohms TL Output
match
C2
R1
C6
C1 Z1
Z2
Vctrl
R2
C3
1,2,19,20
Input
match 50-Ohms TL
Vsupply
21 20 19 17,18
16
3,4
5
1,22
12,13,14,15
78910 11
6
1,2,19,20
2Circuit Symbol Size Value Description
C1, C6 0805 2.2uF Ceramic Chip Capacitor
C2, C4, C8 0402 0.1uF Ceramic Chip Capacitor
C3, C5, C7 0402 10nF Ceramic Chip Capacitor
R1 0805 0 Ohm Chip Resistor
R2 0805 Not Used N/A
Z1, Z2 0805 Not Used Zener Diode 5.6V
(Optional)
Figure 6. Demo board application schematics and components table
Demo Board Layout
10 1
RF
input
20-pin Connector
RF
output
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
Pins pointing out of the page
Unit is on top
Pins 1,2,19,20 = Vsupply = Vdd
Pin 3 = Vsense (optional)
Pins 5,6,15,16 = GND
Pin 8 = Vctrl
Other pins are not used
Figure 7. Demo Board Layout Diagram
1. Recommended PCB material is 10 mils Rogers RO4350, with FR4 backing for mechanical strength.
2. Suggested component values may vary according to layout and PCB material.
7
ALM-31122 Typical Performance
TA = +25ºC, Vdd = 5V, Vctrl = 5V, Input Signal=CW unless stated otherwise.
320
340
360
380
400
420
440
460
480
-40-30-20-100 102030405060708090
Temperature (ºC)
Ids (mA)
42
43
44
45
46
47
48
49
50
51
52
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
OIP3 (dB)
27
28
29
30
31
32
33
34
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
P1dB (dBm)
10
11
12
13
14
15
16
17
18
19
20
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
Gain (dB)
-25
-20
-15
-10
-5
0
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
S11 (dB)
-25
-20
-15
-10
-5
0
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
S22 (dB)
85ºC
25ºC
-40ºC
85ºC
25ºC
-40ºC
85ºC
25ºC
-40ºC
85ºC
25ºC
-40ºC
85ºC
25ºC
-40ºC
Figure 9. Over temperature OIP3 vs Frequency
Figure 10. Over temperature P1dB vs Frequency Figure 11. Over temperature Gain vs Frequency
Figure 12. Over temperature S11 vs Frequency Figure 13. Over temperature S22 vs Frequency
Figure 8. Ids vs Temperature
8
Combines Land Pattern and Stencil Layout
PCB Land Pattern Stencil Opening
5.80
0.50 0.50
0.35
4.80
0.30
0.35
4.20
0.85
0.30
0.30
0.70
0.60
1.30
0.50
Pin 1
0.45
0.45
0.45
0.63
0.39
0.41
5.73
0.35
0.35
0.41
0.54
0.77
0.45
4.74
1.17
0.72
0.45
0.30
2.79
1.74
0.45
4.74 4.80
5.80
5.73
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
0.7 0.75 0.8 0.85 0.9 0.95 1
Frequency (GHz)
S12 (dB)
85ºC
25ºC
-40ºC
-60
-55
-50
-45
-40
-35
-30
-25
-20
20 21 22 23 24 25
Output Channel Power (dBm)
ACPR (dBC)
85ºC
25ºC
-40ºC
3GPP WCDMA,
Test Model 1 + 64DPCH,
+/- 5MHz Offset
Figure 14. Over temperature S12 vs Frequency Figure 15. Over temperature ACPR vs Channel Power at 900MHz
Note:
All dimensions are in millimeters.
PCB Layout and Stencil Design
9
Package Dimensions
Notes:
1. All dimenions are in milimeters
2. Dimensions are inclusive of plating
3. Dimensions are exclusive of mold ash and
metal burr
1
2
3
4
5
6
7
89
10
1112
13
14
15
16
17181921
20 22
Bottom View
(2x) 1.60
(6x) 0.50 (4x) 0.70
(4x) 0.60
(2x) 2.40
(2x) 1.30
0.07 (All Metal and SM Gaps)(8x) 0.21
(8x) 0.210
(12x) 0.16
(8x) 0.50 sq
0.10
6.00±0.10
Pin 1
5.00±0.10
0.60
1.05±0.10
Top View Side View
31122
WWYY
XXXX
Product Family
Output
Power
Frequency Band
700MHz-1GHz 1.7- 2.7GHz 3.3-3.9GHz
0.5W MGA-30116 MGA-30216 MGA-30316
1W ALM-31122 ALM-31222 ALM-31322
2W ALM-32120 ALM-32220 ALM-32320
Part Number Ordering Information
Part Number No. of Devices Container
ALM31122-TR1G 1000 7” Reel
ALM31122-TR2G 3000 13” Reel
ALM31122-BLKG 100 antistatic bag
10
USER FEED DIRECTION
TOP VIEW END VIEW
USER
FEED
DIRECTION
COVER TAPE
CARRIER
TAPE
REEL
31122
WWYY
XXXX
31122
WWYY
XXXX
31122
WWYY
XXXX
Section B-B
5˚ All
Around
Bo
B
A
(R0.50) B
4.00±0.10 See Note #2
2.00±0.05 Ø1.55±0.05
1.75±0.10
Ao
Section A-A
Ko
0.30±0.05
5.50±0.10
12.00±0.30
Ø1.50 (Min)
8.00±0.10
Device Orientation
Tape Dimensions
11
Reel Dimension - 7 inch
PS
6
PS
6
BACK VIEW
Ø178.0±0.5
Ø55.0±0.5
6.25mm EMBOSSED LETTERS
LETTERING THICKNESS: 1.6mm
SEE DETAIL "X"
SLOT HOLE "b"
SLOT HOLE(2x)
180° APART.
SLOT HOLE "a": 3.0±0.5mm(1x)
SLOT HOLE "b": 2.5±0.5mm(1x)
Ø13.0
65°
45°
R10.65
45°
R5.2
EMBOSSED RIBS
RAISED: 0.25mm, WIDTH: 1.25mm 18.0*
MAX.
Ø51.2±0.3
Ø178.0±0.5
RECYCLE LOGO FRONT VIEW
120°
1.5 MIN.
Ø20.2 MIN.
-0.2
+0.5
DETAIL "X"
-0.0
+1.5*
12.4
DETAIL "Y"
(Slot Hole)
3.5
1.0
SEE DETAIL "Y"
FRONT BACK
FRONT BACK
SLOT HOLE "a"
Ø178.0±0.5
Reel Dimension - 13 inch
PS
6
2
1
12
11
10
9
8
7
20
3
5
4
6
6
PS
PS
6
CPN
12MM
MPN
Detail "X"
RECYCLE LOGO
SEE DETAIL "X"
R19.0±0.5
Ø12.3±0.5(3x)
Ø100.0±0.5
Ø329.0±1.0
11.9-15.4**
18.4 MAX.*
SLOT
5.0±0.5(3x)
12.4 +2.0*
-0.0
16.0mm HEIGHT x MIN. 0.4mm THICK.
EMBOSSED LETTERING
EMBOSSED LINE (2x)
89.0mm LENGTH LINES 147.0mm
AWAY FROM CENTER POINT
7.5mm HEIGHT
EMBOSSED LETTERING
DATE CODE
ESD LOGO
Ø16.0
7.5mm HEIGHT
EMBOSSED LETTERING
HUB
Ø100.0±0.5
Ø329.0±1.0
20.2(MIN.)
1.5(MIN.)
Ø13.0 -0.2
+0.5
BACK VIEW
FRONT VIEW
20
12
10
87
11
9
1
3
4
65
2
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 Limited in the United States and other countries.
Data subject to change. Copyright © 2005-2010 Avago Technologies Limited. All rights reserved.
AV02-1178EN - October 21, 2010
