Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 1 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
Product Features
• 1800 – 2200 MHz bandwidth
• 26.6 dB Attenuation Range
• +39.5 dBm Output IP3
• +22 dBm P1dB
• Constant IP3 & P1dB over
attenuation range
• Single voltage su pply
• Pb-free 6mm 28-pin QFN package
• MTTF > 1000 years
Applications
• Xmit & Rcv AGC circuitry for
mobile infrastructure
Product Description
The VG111 is a PCS / UMTS-band high dynamic
range variable gain amplifier (VGA) packaged in a
low profile Pb-free / RoHS-compliant surface-mount
leadless package that measures 6 x 6 mm square.
The +22 dBm output compression point and +39.5
dBm output intercept point of the amplifier are
maintained over the entire attenuation range, making
the VG111 ideal for use in transmitter and receiver
AGC circuits and as a variable gain stage following
an LNA in high dynamic range receiver front ends.
Superior thermal design allows the product to have a
minimum MTTF rating of 1000 years at a mounting
temperature of +85º C. All devices are 100% RF &
DC tested and packaged on tape and reel for
automated surface-mount assembly.
Functional Diagram
Function Pin No
Gain Control 5
No Connect 7, 19, 21
RF Input 11
RF Output / DC bias 25
Ground All other pins
Backside copper
Specifications (1)
Parameter Units Min Typ Max Conditions
Operational Bandwidth MHz 1800 2200
Test Frequency MHz 1900 See note 1
Gain at min. attenuation dB 12 14
Input Return Loss dB 12
Output Return Loss dB 11
Output P1dB dBm +22
Output IP3 dBm +37 +39.5 See note 2
Noise Figure at min. attenuation dB 3.5 VCTRL = 0 V
Test Frequency MHz 2140 See note 1
Gain at min. attenuation dB 13.3
Input Return Loss dB 14
Output Return Loss dB 14
Output P1dB dBm +22
Output IP3 dBm +39.5 See note 2
Noise Figure at min. attenuation dB 4.1 VCTRL = 0 V
Gain Variation Range dB 23.5 26.6 32.5 See note 3
Gain Variation Control Voltage, VCTRL V 0 4.5 See note 1
Group Delay ns 0.6
Supply Voltage V +5
Operating Amplifier Current Range mA 120 150 180 Pin 25
Gain Control Pin Current mA 20 VCTRL = 4.5 V. See note 1.
1. Test conditions unless otherwise noted: 25ºC, Vdd = +5 V in a tuned application circuit. Vctrl is the control voltage through a BJT transistor and a 100 Ω dropping res ist or as show n in t he sa me appl ica tio n c ircuit .
2. 3OIP measured with two tones at an output power of +5 dBm/tone separated by 10 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
3. The gain variation range is measured as the difference in gain with Vctrl = 0V and Vctrl = 4.5V at 1.9 GHz.
Absolute Maximum Rating
Parameter Rating
Operating Case Temperature -40 to +85 °C
Storage Temperature -55 to +125 °C
Amplifier Supply Voltage (pin 25) +6 V
Pin 5 (Gain Control) Current 30 mA
RF Input Power (continuous) +12 dBm
Junction Temperature +220° C
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No. Description
VG111* PCS/UMTS-band Variable Gain Amplifier
(Leaded QFN Pkg)
VG111-F PCS/UMTS-band Variable Gain Amplifier
(lead-free/RoHS-compliant QFN Pkg)
VG111-PCB1900 1.8 – 2.0 GHz Fully Assembled Application Board
VG111-PCB2100 2.0 – 2.2 GHz Fully Assembled Application Board
* This package is being phased out in favor of the lead-free package type which is backward compatible
for existing designs.
N/C
GND
Gain Ctrl
GND
GND
GND
GND
8
9
10
11
12
13
14
28
27
26
25
24
23
22
7 6 5 43 2 1
15 16 17 18 19 20 21
GND
GND
GND
RF OUT
GND
GND
GND
GND
GND
GND
RF IN
GND
GND
GND
GND
GND
GND
GND
N/C
GND
N/C
Variable
ttenuato
Amp
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 2 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
Application Circuit: 1.8 – 2.0 GHz (VG111-PCB1900)
• Pins 7, 19, and 21 should not be connected.
• The amplifier is biased through Pin 25 and should be connected directly into a voltage regulator.
• DNP represents Do Not Place.
• Distances are shown from the edge-to-edge for the land pattern.
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
Bill of Materials
Ref. Des. Description Size
C1, C7 47 pF Chip Capacitor 0603
C2, C5 Do Not Place
C3, C4 0.01 μF Chip Capacitor 0603
C6 0.5 pF Chip Capacitor 0603
L1, L2 22 nH Chip Inductor 0603
R1 100 Ω Chip Resistor 0603
R2 2.2 Ω Chip Resistor 0603
Q1 MMBT2222 Motorola Transistor SOT-23
U1 VG111 Variable Gain Amplifier QFN 6x6
OIP3 vs. Output Power
frequency = 1900, 1901 MHz, 0dB Atten.
25
30
35
40
45
-4 0 4 8 12 16
Output Power (dBm)
+25C -40C +85C
OIP3 vs. Attenuation Setting
frequency = 1900, 1901 MHz, +10 dBm/tone, +25° C
25
30
35
40
45
0246810
Attenuation (dB)
ACPR vs. Channel Power
1960 MHz, IS-95, 9 Ch. Forward, ±885 kHz offset, 30 kHz Meas BW, 25°C
-70
-60
-50
-40
10 11 12 13 14 15 16
Output Channel Power (dBm)
0dB Attn
2.5dB Attn
5dB Attn
10dB Attn
Gain vs. Pin 5 Attn. Control Current
-20
-15
-10
-5
0
5
10
15
20
0 5 10 15 20 25
Pin 5 Attenuation Control Current (mA)
+25°C -40°C +85°C
Normalized Gain vs. Pin 5 Control Current
0
5
10
15
20
25
30
35
0.1 1.0 10.0 100.0
Pin 5 Attenuation Control Current (mA)
+25°C -40°C +85°C
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 3 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
VG111-PCB1900 Application Circuit Performance (cont’d)
S21 vs. Frequency
Vctrl=0V (Min i mu m atte nu a tio n )
10
11
12
13
14
15
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
-40°C +25°C +85°C
S11 vs. Frequency
Vctrl=0V (Minimum attenu ation)
-20
-15
-10
-5
0
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
-40°C +25°C +85°C
S22 vs. Frequency
Vctrl=0V (Minimum attenu ation)
-20
-15
-10
-5
0
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
-40°C +25°C +85°C
S21 vs. Frequency vs. Attenuation Setting
-20
-10
0
10
20
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
0 dB Atten 5 dB Atten 10 dB Atten
15 dB Atten 20 dB Atten 25 dB Atten
S11 vs. Frequency vs. Attenuation Setting
-30
-25
-20
-15
-10
-5
0
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
0 dB Atten 5 dB Atten
10 dB Atten 15 dB Atten
20 dB Atten 25 dB Atten
S22 vs. Frequency vs. Attenuation Setting
-30
-25
-20
-15
-10
-5
0
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
0 dB Atten 5 dB Atten
10 dB Atten 15 dB Atten
20 dB Atten 25 dB Atten
P1dB vs. Frequency
Vctrl=0V (Minimum attenu ation)
16
18
20
22
24
26
1880 1920 1960 2000
Frequency (MHz)
-40°C +25°C +85°C
Noise Figure vs. Frequency
Vctrl=0V (Minimum attenuation)
0
2
4
6
8
10
1700 1750 1800 1850 1900 1950 2000
Frequency (MHz)
-40°C +25°C +85°C
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 4 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
Application Circuit: 2.0 – 2.2 GHz (VG111-PCB2100)
• Pins 7, 19, and 21 should not be connected.
• The amplifier is biased through Pin 25 and should be connected directly into a voltage regulator.
• DNP represents Do Not Place.
• Distances are shown from the edge-to-edge for the land pattern.
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
Bill of Materials
Ref. Des. Description Size
C1, C7 47 pF Chip Capacitor 0603
C2 0.2 pF Chip Capacitor 0603
C3, C4 0.01 μF Chip Capacitor 0603
C5 0.6 pF Chip Capacitor 0603
C6 Do Not Place
L1, L2 22 nH Chip Inductor 0603
R1 100 Ω Chip Resistor 0603
R2 2.2 Ω Chip Resistor 0603
Q1 MMBT2222 Motorola Transistor SOT-23
U1 VG111 Variable Gain Amplifier QFN 6x6
OIP3 vs. Output Power
frequency = 2140, 2141 MHz, 0dB Atten.
25
30
35
40
45
-4 0 4 8 12 16
Output Power (dBm)
+25C -40C +85C
OIP3 vs. Attenuation
frequency = 2140, 2141 MHz, +10 dBm/tone, +25° C
25
30
35
40
45
0246810
Attenuation (dB)
ACPR vs. Channel Power
2140 MHz, 3GPP W-CDMA, Test Model 1 + 64 DPCH, ±5 MHz offset, 25°C
-60
-55
-50
-45
-40
11 12 13 14 15
Output Channel Power (dBm)
0dB Attn
2.5dB Attn
5dB Attn
10dB Attn
Gain vs. Pin 5 Attn. Control Current
-20
-15
-10
-5
0
5
10
15
20
0 5 10 15 20 25
Pin 5 Attenuation Control Current (mA)
+25°C -40°C +85°C
Normalized Gain vs. Pin 5 Control Current
0
5
10
15
20
25
30
35
0.1 1.0 10.0 100.0
Pin 5 Attenuation Control Current (mA)
+25°C -40°C +85°C
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 5 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
VG111-PCB2100 Application Circuit Performance (cont’d)
S21 vs. Frequency
Vctrl=0V (Min imum attenuation)
10
11
12
13
14
15
2110 2120 2130 2140 2150 2160 2170
Frequency (MHz)
-40°C +25°C +85°C
S11 vs. Frequency
Vctrl=0V (Minimum attenu ation)
-20
-15
-10
-5
0
2110 2120 2130 2140 2150 2160 2170
Frequency (MHz)
-40°C +25°C +85°C
S22 vs. Frequency
Vctrl=0V (Minimum attenu ation)
-20
-15
-10
-5
0
2110 2120 2130 2140 2150 2160 2170
Frequency (MHz)
-40°C +25°C +85°C
S21 vs. Frequency vs. Attenuation Setting
-20
-10
0
10
20
2110 2130 2150 2170
Frequency (MHz)
0 dB Atten 5 dB Atten 10 dB Atten
15 dB Atten 20 dB Atten 25 dB Atten
S11 vs. Frequency vs. Attenuation Setting
-30
-25
-20
-15
-10
-5
0
2110 2130 2150 2170
Frequency (MHz)
0 dB Atten 5 dB Atten
10 dB Atten 15 dB Att en
20 dB Atten 25 dB Att en
S22 vs. Frequency vs. Attenuation Setting
-30
-25
-20
-15
-10
-5
0
2110 2130 2150 2170
Frequency (MHz)
0 dB Atten 5 dB Atten
10 dB Atten 15 dB Atten
20 dB Atten 25 dB Atten
P1dB vs. Temperature
2140 MHz, Vctrl=0V (minimum attenua t i on )
14
16
18
20
22
24
-40 -15 10 35 60 85
Temperature (°C)
Noise Figure vs. Frequency
Vctrl=0V (Minimum attenuation)
0
2
4
6
8
10
2110 2120 2130 2140 2150 2160 2170
Frequency (MHz)
-40°C +25°C +85°C
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 6 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
VG111 Mechanical Information
This package may contain lead-bearing materials. The plating material on the pins is SnPb.
Outline Drawing
Mounting Configuration / Land Pattern
Thermal Specifications
Parameter Rating
Operating Case Temperature -40 to +85° C
Thermal Resistance, Rth (1) 59° C / W
Junction Temperature, Tjc (2) 129° C
1. The thermal resistance is referenced from the hottest
part of the junction to the ground tab (pin 4).
2. This corresponds to the typical biasing condition of
+5V, 150 mA at an 85° C case temperature. A
minimum MTTF of 1 million hours is achieved for
junction temperatures below 160° C.
Product Marking
The component will be lasermarked with a
“VG111” designator with an alphanumeric lot
code on the top surface of the package.
Tape and reel specifications for this part will be
located on the website in the “Application
Notes” section.
ESD / MSL Information
ESD Rating: Class 1B
Value: Passes 500V to <1000V
Test: Human Body Model (HBM)
Standard: JEDEC Standard JESD22-A114
ESD Rating: Class IV
Value: Passes 1000V to <2000V
Test: Charged Device Model (CDM)
Standard: JEDEC Standard JESD22-C101
MSL: Level 1 at +250 °C convection reflow
Standard: JEDEC Standard J-STD-020
Functional Pin Layout
Pin FUNCTION Pin FUNCTION
1 GND 15 GND
2 GND 16 GND
3 GND 17 GND
4 GND 18 GND
5 Gain control pin 19 N/C
6 GND 20 GND
7 N/C 21 N/C
8 GND 22 GND
9 GND 23 GND
10 GND 24 GND
11 RF Input 25 RF Output / Bias
12 GND 26 GND
13 GND 27 GND
14 GND 28 GND
MTTF vs. GND Tab Temperature
1
10
100
1000
60 70 80 90 100 110
Tab Temperature (°C)
N/C
GND
Gain Ctrl
GND
GND
GND
GND
8
9
10
11
12
13
14
28
27
26
25
24
23
22
7 6 5 4 3 2 1
15 16 17 18 19 20 21
GND
GND
GND
RF OUT
GND
GND
GND
GND
GND
GND
RF IN
GND
GND
GND
GND
GND
GND
GND
N/C
GND
N/C
Variable
ttenuato
Amp
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 7 of 7 February 2006
VG111
PCS/UMTS-band Variable Gain Amplifier Product Information
The Communications Ed
g
e TM
VG111-F Mechanical Information
This package is lead-free/RoHS-compliant. It is compatible with both lead-free (maximum 260°C reflow temperature) and leaded (maximum
245°C reflow temperature) soldering processes. The plating material on the pins is annealed matte tin over copper.
Outline Drawing
Mounting Configuration / Land Pattern
Thermal Specifications
Parameter Rating
Operating Case Temperature -40 to +85° C
Thermal Resistance, Rth (1) 59° C / W
Junction Temperature, Tjc (2) 129° C
1. The thermal resistance is referenced from the hottest
part of the junction to the ground tab (pin 4).
2. This corresponds to the typical biasing condition of
+5V, 150 mA at an 85° C case temperature. A
minimum MTTF of 1 million hours is achieved for
junction temperatures below 160° C.
Product Marking
The component will be lasermarked with a
“VG111F” designator with an alphanumeric lot
code on the top surface of the package.
Tape and reel specifications for this part will be
located on the website in the “Application
Notes” section.
ESD / MSL Information
ESD Rating: Class 1B
Value: Passes 500V to <1000V
Test: Human Body Model (HBM)
Standard: JEDEC Standard JESD22-A114
ESD Rating: Class IV
Value: Passes 1000V to <2000V
Test: Charged Device Model (CDM)
Standard: JEDEC Standard JESD22-C101
MSL Rating: Level 2 at +260°C convection reflow
Standard: JEDEC Standard J-STD-020
Functional Pin Layout
Pin FUNCTION Pin FUNCTION
1 GND 15 GND
2 GND 16 GND
3 GND 17 GND
4 GND 18 GND
5 Gain control pin 19 N/C
6 GND 20 GND
7 N/C 21 N/C
8 GND 22 GND
9 GND 23 GND
10 GND 24 GND
11 RF Input 25 RF Output / Bias
12 GND 26 GND
13 GND 27 GND
14 GND 28 GND
MTTF vs. GND Tab Temperature
1
10
100
1000
60 70 80 90 100 110
Tab Temperature (°C)
N/C
GND
Gain Ctrl
GND
GND
GND
GND
8
9
10
11
12
13
14
28
27
26
25
24
23
22
7 6 5 4 3 2 1
15
16 17 18 19 20 21
GND
GND
GND
RF OUT
GND
GND
GND
GND
GND
GND
RF IN
GND
GND
GND
GND
GND
GND
GND
N/C
GND
N/C
Variable
Attenuator
Amp