Preliminary Specifications
Low Cost Three-Way GMIC SMT Power Divider
1850 - 1990 MHz
DS53-0004
V1.02
Features
q
q
q
q
q
q
q
SO-8
PIN 8
Orientation
mark
PIN 1
.1890-.1968
(4.80-5.00)
-A-
.004 (0.10)
.0532-.0688
(1.35-1.75)
0°-8°
-C-
.0040-.0098
(0.10-0.25)
.013-.020 TYP.
(0.33-0.51)
.0099-0.0196
x 45° Chamfer
(0.25-0.50)
.016-.050
(0.40-1.27)
.0075-0.0098
(0.19-0.25)
.1497-.1574
(3.80-4.00)
-B-
.2284-.2440
(5.80-6.20)
.010(0.25) M B M
Small Size and Low Profile
Industry Standard SOIC-8 SMT Plastic Package
Excellent Amplitude and Phase Balance
Superior Repeatability
Typical Insertion Loss 0.8 dB
Typical Isolation 24 dB
1 Watt Power Handling
Description
M/A-COM’s DS53-0004 is an IC based monolithic power
divider using M/A-COM’s GMIC technology in a low cost
SOIC-8 plastic package. This 3-way power divider is
ideally suited for applications where small size, low
insertion loss, superior phase/amplitude tracking and
low cost are required. Typical applications include
personal communication systems and other
communication applications where size and PCB real
estate are at a premium. Available in tape and reel.
The DS53-0004 is fabricated using a passive-integrated
circuit process. The process features full chip passivation
for increased performance and reliability.
.050(1.27) BSC.
.010(0.25) M C A M B S
8- Lead SOP outline dimensions
Narrow body .150
(All dimensions per JEDEC No. MS-012-AA, Issue C)
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .xxx = ± 0.010 (.xx = ± 0.25)
.xx = ± 0.02 (.x = ±0.5)
Ordering Information
Part Number
DS53-0004
DS53-0004TR
DS53-0004RTR
Package
SOIC 8-Lead Plastic Package
Forward Tape and Reel
*
Reverse Tape and Reel
*
* If specific reel size is required, consult factory for part number
assignment.
Typical Electrical Specifications
1
,
T
A
= +25°C
Parameter
Insertion Loss
Isolation
VSWR
Amplitude Balance
Phase Balance
1. All specifications apply with a 50-ohm source and load impedance.
Units
Above 4.8 dB
dB
dB
—
dB
°
Min.
—
17
—
—
—
Typ.
1.0
21
1.8:1
0.3
7
Max.
1.4
—
2.0:1
0.6
14
The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
1
Asia/Pacific: Tel. +85 2 2111 8088
Fax +85 2 2111 8087
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Low Cost Three-Way GMIC SMT Power Divider
Absolute Maximum Ratings
1
Parameter
Input Power
2
DS53-0004
V1.02
Functional Diagram
1
RF1 OUT
8
RF2 OUT
Absolute Maximum
1 W CW
-40°C to +85°C
-65°C to +150°C
GND
Operating Temperature
Storage Temperature
GND
1. Exceeding these limits may cause permanent damage.
2. With internal load dissipation of 0.125 W maximum.
GND
GND
Recommended PCB Configuration
(Dimensions in Inches)
Circuit Material: FR-4, .016 Thick
.035 TYP.
RF IN
4
5
RF3 OUT
.081 TYP.
RF1
RF2
.018 DIA. PLATED
THRU (12X)
.244
.030 TYP.
RF Input
RF3
.050 DIA. PLATED
THRU (2X)
.072TYP.
.244
Typical Performance
@ +25°C
INSERTION LOSS vs FREQUENCY (DASHED
LINES SHOW AMPLITUDE BALANCE WINDOW)
INSERTION LOSS (dB)
0
-0.5
-1
-1.5
-2
1850
1888
1925
1963
2000
VSWR vs FREQUENCY
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
1850
RF In
RF1
RF2
RF3
VSWR
1888
1925
1963
2000
FREQUENCY (MHz)
FREQUENCY (MHz)
0
-5
-10
-15
-20
-25
-30
-35
-40
ISOLATION vs FREQUENCY
PHASE (DEGREES)
RF1-RF2
RF2-RF3
RF1-RF3
PHASE BALANCE vs. FREQUENCY
(RELATIVE TO RF1)
10
8
6
4
2
0
-2
-4
-6
-8
-10
RF1
RF2
RF3
ISOLATION (dB)
1850
1888
1925
1963
2000
1850
1888
1925
1963
2000
FREQUENCY (MHz)
FREQUENCY (MHz)
The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
2
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
M/A-COM, Inc.
Asia/Pacific:
Tel. +85 2 2111 8088
Fax +85 2 2111 8087
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020