Broadband CATV 4-Way Active Splitter with Default Loop-Through
Switch 50 - 1100 MHz
Features
Always ON loop-through path
4-Way Splitter
2.5 dB Gain
+15 dBmV/Channel Input
4.5 dB Noise Figure
Lead-Free 3 mm 12-Lead PQFN Package
RoHS* Compliant and 260°C Reflow Compatible
S2
AIN FB/V
DD
Rev. V1
Functional Schematic, Default On, Power Off
Vc
IN
OUT4
1
OUT1
OUT2
OUT3
Description
The MAAM-009778 CATV 4-way active splitter with
the default loop-through path is a GaAs MMIC which
exhibits low noise figure and distortion in a lead-free
3 mm 12-lead PQFN plastic package. The design
features 75 Ω inputs and outputs.
The MAAM-009778 is ideally suited for multi-tuner
set top boxes, home gateways, and other broadband
internet based applications.
The MAAM-009778 is fabricated using M/A-COM
Technology Solutions’ E/D pHEMT process to
realize default loop-through operation, low noise and
low distortion. The process features full passivation
for robust performance and reliability.
S1
ALT
N/C
Functional Schematic, Power On
S2
AIN FB/V
DD
Vc
IN
OUT4
1
OUT1
OUT2
OUT3
S1
ALT
N/C
Pin Configuration
Pin No.
Pin Name
V
C
IN
OUT4
S1
ALT
N/C
OUT3
OUT2
OUT1
FB/V
DD
AIN
S2
Paddle
3
Description
Voltage Control
RF Input
RF Output 4
Switch Input
Alternate Output
No Connection
RF Output 3
RF Output 2
RF Output 1
Amplifier Feedback /
Drain Voltage
Amplifier Input
Switch Output
RF and DC Ground
Ordering Information
Part Number
MAAM-009778-TR1000
MAAM-009778-TR3000
MAAM-009778-001SMB
1,2
Package
1000 piece reel
3000 piece reel
Sample Test Board
1
2
3
4
5
6
7
8
9
10
11
12
13
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
3. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-009778
Broadband CATV 4-Way Active Splitter with Default Loop-Through
Switch 50 - 1100 MHz
Electrical Specifications
4
: Freq. = 1000 MHz, T
A
= 25°C, Z
0
= 75
Ω
Parameter
Gain
Insertion Loss
Noise Figure
Gain Flatness
Input Return Loss
Input Return Loss
Output Return Loss
Output Return Loss
Out to Out Isolation
Out to Out Isolation
CTB
CSO
Reverse Isolation
Reverse Isolation
Reverse Isolation
OIP2
OIP3
P1dB
P1dB
I
DD
I
C
4. The unpowered state is the same as V
C
= 0V
Rev. V1
Test Conditions
In to Out1, 2, or 3
In to Out4
In to Out4
In to Out1, 2, 3, or 4
In to Out1, 2, 3, or 4
Input
Input
Output
Output
Out1 to Out2, 3 or 4
Out1 to Out2 or 3
132 Channels, +15 dBmV/Channel
at the input
132 Channels, +15 dBmV/Channel
at the input
Out1, 2, 3 to In
Out4 to In
Out1, 2, 3 to In
500 MHz, 2-tone,
6 MHz spacing, -10 dBm Pout
500 MHz, 2-tone,
6 MHz spacing, -10 dBm Pout
500 MHz
500 MHz
V
DD
(V)
5
0
5
5
5
0
5
0
5
0
5
5
5
5
0
5
5
5
5
5
5
V
C
(V)
3.3
0
3.3
3.3
3.3
0
3.3
0
3.3
0
3.3
3.3
3.3
3.3
0
3.3/0
3.3/0
3.3
0
3.3
3.3
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBc
dBc
dB
dB
dB
dBm
dBm
dBm
dBm
mA
µA
Min.
2
1.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
2.5
2.5
0.75
4.5
0.8
12
12
10
10
22
35
-65
-60
31
23
45
42
22
6
25
100
230
Max.
4.5
4.5
1.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
130
250
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-009778
Broadband CATV 4-Way Active Splitter with Default Loop-Through
Switch 50 - 1100 MHz
Absolute Maximum Ratings
5,6,7
Parameter
Max Input Power
V
DD
V
C
Operating Temperature
Junction Temperature
8
Storage Temperature
Absolute Maximum
+5 dBm
+10.0 V
+8.5 V
-40°C to +85°C
+150°C
-65°C to +150°C
Rev. V1
Truth Table
9
V
DD
1
0
V
C
1
0
IN - OUT1, 2 or 3
On
Off
IN - OUT4
On
On
9. Logic “1” for V
DD
= +5 volts and V
C
= +3.3 volts typical.
5. Exceeding any one or combination of these limits may cause
permanent damage to this device.
6. M/A-COM Technology Solutions does not recommend
sustained operation near these survivability limits.
7. These operating conditions will ensure MTTF > 1 x 10
6
hours.
8. Junction Temperature (T
J
) = T
A
+
Өjc
* (V * I)
Typical thermal resistance (Өjc) = 73 °C/W.
a) For T
A
= 25°C,
T
J
= 72 °C @ 5.0 V, 130 mA
b) For T
A
= 85°C,
T
J
= 129 °C @ 5.0 V, 120 mA
Schematics Including Off-Chip Components
10
Power On Condition
C7
C12
C6
R1
R2
L1
C8
V
DD
L2
Power Off, Default on Condition
C7
R1
R2
L1
Power On
Condition
Power Off
Default On
Condition
C12
C6
C8
V
DD
L2
C1
Vc
L3
RFC
C2
R7
C3
OUT4
R8
L5
C4
L4
C9
R3
OUT1
C1
Vc
L3
RFC
C2
R7
OUT4
OUT3
C9
R3
OUT1
C10
OUT2
R4
C11
R5
C10
L4
C11
R8
L5
C4
L6
C5
R6
R5
R4
OUT2
C3
OUT3
L6
C5
R6
10.The exposed pad centered on the package bottom must be connected to ground for RF, DC and thermal considerations.
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-009778
Broadband CATV 4-Way Active Splitter with Default Loop-Through
Switch 50 - 1100 MHz
Recommended PCB
PCB Land Pattern
Rev. V1
All dimensions in mm
Block Diagram RF Signal Flow
Off-Chip Component Values
Component
C1 - C11
C12
L1
11
L2 - L6
R1, R2
R3 - R5
R6
R7, R8
Value
0.01 µF
1.0 pF
1 µH
7.5 nH
300 Ω
180 Ω
250 Ω
22 KΩ
Package
0402
0402
1210
0402
0402
0402
0402
0402
11. L1 supplied from EPCOS, part number B82422A1102K100
4
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-009778
Broadband CATV 4-Way Active Splitter with Default Loop-Through
Switch 50 - 1100 MHz
Typical Performance Curves
Gain
5
in to out1_+25°
in to out2_+25°
in to out3_+25°
in to out4_+25°
in to out1_-40°
in to out2_-40°
in to out3_-40°
in to out4_-40°
in to out1_+85°
in to out2_+85°
in to out3_+85°
in to out4_+85°
Rev. V1
Gain
10
5
4
0
-5
-10
2
-15
-20
-25
0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-30
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3
1
Frequency (GHz)
Frequency (GHz)
Input Return Loss (power on)
0
Input Return Loss (power off)
0
-5
-5
-10
-15
-20
-10
-15
-25
-30
-35
-20
-25
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-40
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Frequency (GHz)
Frequency (GHz)
Output Return Loss (power on)
0
Output Return Loss (power off)
0
-5
-5
-10
-15
-20
-10
-15
-25
-30
-35
-20
-25
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-40
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Frequency (GHz)
Frequency (GHz)
5
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
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