參數(shù)資料
型號: VG101
元件分類: 可變增益放大器
英文描述: Variable Gain Amplifiers
中文描述: 可變增益放大器
文件頁數(shù): 1/3頁
文件大小: 164K
代理商: VG101
This document contains information on a new product.
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
July 2003
VG101
Cellular-band Variable Gain Amplifier
Product Information
The Communications Edge
TM
Product Features
750 – 1000 MHz bandwidth
30 dB Attenuation Range
+40 dBm Output IP3
+21 dBm P1dB
Constant IP3 & P1dB over
attenuation range
Single voltage supply
6x6 mm 28-pin QFN package
MTTF > 100 years
Applications
Xmit & Rcv AGC circuitry for
mobile infrastructure
Product Description
The VG101 is a cellular-band high dynamic range variable
gain amplifier (VGA) packaged in a 6x6 mm surface-
mount package. The +21 dBm output compression point
and +40 dBm output intercept point of the amplifier are
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 100 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
N
7
6
Function
Gain Control
No Connect
RF Input
Interstage Match
RF Output / DC bias
Pin No
5
7, 19
11
21
25
All other pins
Backside copper
Ground
Specifications
Parameter
Frequency Range
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 Range
Thermal Resistance
Junction Temperature
Test conditions unless otherwise noted.
1. T = 25oC, Vdd = +5 V, Frequency = 900 MHz in an application circuit.
2. 3OIP measured with two tones at an output power of +10 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 with 15 mA of current on gain control pin 5.
4. The junction temperature ensures a minimum MTBF rating of 1 million hours of usage.
Absolute Maximum Rating
Units
MHz
dB
dB
dB
dBm
dBm
dB
dB
V
ns
V
mA
mA
°
C / W
°
C
Min
750
15
+37
0
120
0
Typ
900
16
10
10
+21
+40
3.8
30
1
+5
150
Max
1000
4.5
180
25
59
160
Conditions
See note 1
See note 2
V
CTRL
= 0 V
See note 3
Frequency = 800 MHz
Pin 25
Pin 5 draws no current at maximum gain
See note 4
Ordering Information
Parameter
Operating Case Temperature
Storage Temperature
Amplifier Supply Voltage (pin 25)
Attenuation Control Voltage
RF Input Power (continuous)
Junction Temperature
Rating
-40 to +85
°
C
-55 to +125
°
C
+6 V
+5.5 V
+12 dBm
+220
°
C
Part No.
VG101
VG101-PCB
Description
Cellular-band Variable Gain Amplifier
Fully Assembled Application Board
Operation of this device above any of these parameters may cause permanent damage.
G
V
5
G
4
G
3
G
G
1
8
9
10
11
12
13
14
28
27
26
25
24
23
22
2
15
G
16
G
17
G
18
G
19
N
20
G
21
M
GND
GND
GND
RF OUT
GND
GND
GND
GND
GND
GND
RF IN
GND
GND
GND
Variable
Attenuator
Amp
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