maintained over the entire attenuation range, making
the VG101 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 +85 ºC. All devices are 100% RF &
DC tested and packaged on tape and reel for
automated surface-mount assembly.
Functional Diagram
Gain Ctrl
GND
GND
GND
7
GND 8
GND 9
GND 10
RF IN 11
GND 12
GND 13
GND 14
15
GND
16
GND
17
GND
18
GND
19
N/C
20
GND
21
MATCH
6
5
4
3
GND
2
GND
1
28 GND
27 GND
26 GND
25 RF OUT
24 GND
23 GND
22 GND
N/C
Amp
Variable
Attenuator
Applications
•
Xmit & Rcv AGC circuitry for
mobile infrastructure
Specifications
(1)
Parameter
Operational Bandwidth
Test Frequency
Gain at min. attenuation
Input Return Loss
Output Return Loss
Output P1dB
Output IP3
Noise Figure at min. attenuation
Gain Variation Range
Gain Variation Control Voltage, V
CTRL
Group Delay
Supply Voltage
Operating Amplifier Current Range
Gain Control Pin Current
Units
MHz
MHz
dB
dB
dB
dBm
dBm
dB
dB
V
ns
V
mA
mA
Min
700
15
Typ
900
16
12
14
+22
+40
3.5
28.7
1
+5
150
Max
1000
See note 1
Conditions
+37
25.5
0
33.5
4.5
See note 2
V
CTRL
= 0 V
See note 3
See note 1
Frequency = 900 MHz
Pin 25
V
CTRL
= 4.5 V. See note 1.
120
180
20
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 resistor as shown in the same application circuit.
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 0.9 GHz.
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
Amplifier Supply Voltage (pin 25)
Pin 5 (Gain Control) Current
RF Input Power (continuous)
Junction Temperature
Thermal Resistance, Rth
(1)
-40 to +85
°C
-55 to +125
°C
+6 V
30 mA
+12 dBm
+160
°C
59
°C
/ W
Rating
Ordering Information
Part No.
VG101-F
VG101-PCB
Description
Cellular-band Variable Gain Amplifier
(lead-free/RoHS-compliant QFN package)
Fully Assembled Application Board
Operation of this device above any of these parameters may cause permanent damage.
Standard tape / reel size = 500 pieces on a 7″ reel
Specifications and information are subject to change without notice
Page 1 of 4 August 2009
TriQuint Semiconductor, Inc
•
Phone +1-503-615-9000
•
FAX: +1-503-615-8900
•
e-mail: info-sales@tqs.com
•
Web site: www.TriQuint.com
VG101
Cellular-band Variable Gain Amplifier
Application Circuit: 700 – 1000 MHz (VG101-PCB)
L4
5.6 nH
C5
0.4 pF
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
•
The amplifier is biased through Pin 25 and should be connected
directly into a voltage regulator.
•
Distances are shown from the edge-to-edge for the land pattern.
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