LFDP20N0020A [ETC]
Interface IC ; 接口IC\n
ETC 
MULTILAYER DEVICES
WIDEBAND DIPLEXER FOR DUAL BAND
LFDP15/20 Series
FEATURES
ꢀ Ultraminiature SMD type, reflow solderable
External dimensions: 3.2 x 1.6 x 1.1mm
ꢀ
ꢀ Low insertion loss, high isolation, no distortion
ꢀ No power consumption
ꢀ Adjustment-free
ꢀ Antenna matching circuit can be integrated depending
on customer’s requirement
EQUIVALENT CIRCUIT
f1
P1
*f1 and f2 indicate frequencies.
f1 > f2
P2
f1 & f2
P2
f2
LFDP15 TYPE
LFDP20 TYPE
L
T
Dimensions: mm
Bottom View
b
L
e
a1
p
ꢀ
ꢁ
ꢂ
Top View
A
ꢀ
ꢄ
ꢁ
ꢂ
ꢆ
ꢂ
ꢆ
ꢁ
ꢅ
ꢀ
ꢄ
W
ꢇ
ꢆ
W
c1
ꢄ
ꢅ
ꢃ
ꢅ
c2
Dimensions: mm
a
p
Code
L
W
T
a1
Dimensions
2.00 0.15
1.25 0.10
0.95 0.10
Code
a2
b
c1
c2
Dimensions
0.3 +0.1/–0.15
0.20 0.15
0.3 +0.1/–0.2
0.3 +0.1/–0.2
Code Dimensions
T
e
p
—
—
0.35 0.10
0.65 0.05
—
Code
Dimensions
3.2 0.15
1.6 0.15
1.1 0.1
Code
Dimensions
L
W
T
a
p
—
0.55 0.15
1.0 0.1
—
0.3 +0.1/–0.15
—
TERMINAL CONFIGURATION
Terminal No.
Terminal Name
P2 (*1)
GND
Terminal No.
Terminal Name
TERMINAL CONFIGURATION
ꢀ
ꢁ
ꢂ
ꢆ
ꢅ
ꢄ
ꢃ
ꢇ
GND
P3 (*3)
GND
NC
Terminal No.
Terminal Name
Terminal No.
Terminal Name
GND
ꢀ
ꢁ
ꢂ
P2 (*1)
GND
ꢆ
ꢅ
ꢄ
P1 (*2)
NC
P3 (*3)
*1= Lower Frequency Port; *2= Higher Frequency Port; *3= Common Port.
Terminal of “NC” should be fixed to the no connected pattern.
P1 (*2)
GND
*1= Lower Frequency Port; *2= Higher Frequency Port; *3= Common Port.
Terminal of “NC” should be fixed to the no connected pattern.
LAND PATTERN
1.65
LAND
LAND PATTERN
SOLDER RESIST
0.8
NO PATTERN
SOLDER RESIST
0.35
ꢀ
ꢀ
0.9
0.8
1.5
0.85
LAND
1.05
0.9
0.3
0.3
0.65
1.4
0.9
0.15
0.1
SOLDER RESIST
1.4
0.3
0.1
NO PATTERN
SOLDER RESIST
ꢀ
0.35
0.3
0.8
0.2
0.1
Unit: mm
0.15
Unit: mm
0.35
0.65 0.65
ꢀ Line width to be designed to match 50ꢀ characteristic impedance, depending on PCB material
and thickness.
SPECIFICATIONS (–40 to +85°C)
Pass Band Range
Insertion Loss (dB max.)
Attenuation (dB min.)
VSWR (max.)
Application
Part Number
P1 ~ P3 (at f1)
P1 ~ P3 (at f2)
P1 ~ P3
at f2
19
P2 ~ P3
at f1
20
P1
P2
P3
f1 (MHz)
f2 (MHz)
25°C Over Temp. 25°C Over Temp.
at f1 at f2 at f1, f2
LFDP15N0039A
LFDP20N0022A
LFDP15N0044A
LFDP20N0020A
LFDP15N0049A
LFDP20N0031A
1920 70 859 35
1920 70 859 35
1795 85 920 40
1795 85 920 40
1750 30 967 12.5
1745 35 965 15
0.45
0.45
0.55
0.55
0.5
0.55
0.55
0.65
0.65
0.60
0.75
0.40
0.40
0.50
0.50
0.45
0.60
0.50
0.50
0.60
0.60
0.55
0.70
1.70 1.70
1.55 1.55
1.80 1.80
1.65 1.65
1.70 1.70
1.65 1.65
1.70
1.55
1.80
1.65
1.70
1.65
AMPS/PCS
20
20
20
16
GSM/DCS1800
20
16
20
17
AMPS/PCS LO
0.65
20
16
Power capacity: 3 Watts
This is a limited list. Other frequencies available.
CG01-J
365
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