SURFACE MOUNTCERAMIC
ATTENUATOR, PIN DIODE
MODEL PI-820
8002000 MHz
FEATURES
PCS Frequency Coverage: 800-2000 MHz
Balanced 4 Diode
Configuration Increases Attenuation and Doubles
Upper Frequency Limit
Low VSWR and Flat Attenuation Characteristics
Silicon PIN Diodes on Ceramic Offer Improved Insertion Loss
Compared to GaAs
Superior Intermodulation Distortion Characteristics
Inherently Compensates for VSWR and Temperture Variations
Rugged Alumina "Surfpac" Package Ideal for Surface Mount
Applications
Can be Optimized Over Lower Fequency Ranges by Changing
Capacitor Values
BEST CHOICE for PCS and GSM Applications
ELECTRICAL SPECIFICATIONS
Frequency Range: 800 - 2000 MHz
Insertion Loss: 3.5 dB typical
Attenuation Range: 0 - 40 dB typical
VSWR: 1.5:1 maximum
DC Supply: +5V DC at 20 mA maximum
Control Voltage: 0V / 10V at 15 mA maximum
for Attenuation / Insertion Loss
1 dB Compression Point: +27 dBm
Attenuation Accuracy: 0.75 dB to 20 dB
1.50 dB to 30 dB
Temperature: -10 to +80C. See application note for
recommended maximum reflow solder-
ing temperatures.
10
8
9
7
6
5
4
3
2
1
0
5 dB
10 dB
15 dB
20 dB
25 dB
30 dB
35 dB 40 dB
0 dB
5.67V
3.22V
2.25V
1.82V
1.60V 1.43V
1.36V 1.25V
Control Voltage vs. Attenuation (Above Ins. Loss)
V
o
l
t
s
Typical Two Tone, 3rd Order Intermodulation Distortion Input Intercept Point vs. Attenuation Setting
35
45
55
65
75
85
95
0dB 10dB 20dB 30dB 40dB
Attenuation Setting
I
n
p
u
t
I
n
t
e
r
c
e
p
t
P
o
i
n
t
s
;
d
B
m
1000 MHz
1500 MHz
Insertion Loss and Return Loss
(including test fixture loss)
800 MHz 2000 MHz
(I.L.) (R.L.)
3 dB
4 dB
5 dB
14 dB
24 dB
34 dB
0dB
5dB
10dB
15dB
20dB
25dB
30dB
35dB
40dB
45dB
10V
5.67
3.22
2.25
1.82
1.60
1.46
1.36
1.25
0V
Attenuation vs. Voltage
800 MHz 2000 MHz
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.450[11,4] SQ.
.500[12,7] SQ.
GND
.125[3,18] TYP.
.250[6,4] TYP.
.375[9,53] TYP.
.012[0,3] R
12 PLS
GND
.100[2,5]
.025[0,64]
GND
5V
CTRL
GND
O
U
T
PI-820
64537
G
N
D
G
N
D
OUT
IN
G
N
D
G
N
D
I
N
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.025[0,64]
Alternate "Pin-o
See Model PI-1
in the Applicatio
See Application Notes
11-5-02
KEY: Inches[Millimeters] .XX .03 .XXX .010 [.X 0.8 .XX 0.25]
60 South Jefferson Road, Whippany, NJ 07981
Tel: 973-887-8100 Fax: 973-884-0445
email: sales@mcekdi-integrated.com
See us on the web @ www.mcekdi-integrated.com
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