APS3625
5-Way Active Splitter with One-Port Bypass
50 MHz to 1000 MHz
PRELIMINARY DATA SHEET
FEATURES
• Single Input, 5-way Output
• Wideband Operation: to Above 1 GHz
• Maintains RF signal path to high priority port
(“Phone”) in power loss mode
• Used in conjunction with external FET for
shutdown control
APS
362
• 4.8 dB Typical Noise Figure at 4 dB Gain
5
• Single +3.3 V Supply
• High Linearity, Low Distortion
• Single-ended 75 Ohm Inputs/Outputs
• RoHS Compliant/Lead Free
• 4 x 4 x 0.9 mm 24-Lead QFN Package
S34 Package
24 Pin QFN
4 mm x 4 mm x 0.9 mm
APPLICATIONS
• Home gateways and CATV digital set-top boxes
with multiple tuners, requiring phone by-
pass when power is lost
PRODUCT DESCRIPTION
The APS3625 active splitter accepts an RF input in
the 50 MHz to 1.0 GHz frequency range and provides
five RF outputs with minimal degradation in signal
quality. The single-package surface mount device
amplifies the input signals using highly linear, low
noise amplification stages, and couples the amplified
signal to five separate output paths to drive video
tuner(s), a DOCSIS tuner(s), or other in-band inputs.
The device provides one by-pass output to maintain a
connection when the power is lost, which is intended
for critical signals such as a digital voice phone. The
overall linearity of each tuner path is maintained across
the entire operating frequency range, ensuring low
distortion effects on each output signal.
Requiring a single +3.3 Volt supply, the active splitter
design is implemented using the GaAs MESFET
process. The small surface mount QFN packaging
makes this device ideal for use in home gateways and
multiple-tuner set-top boxes, supporting multiple video
outputs, and/or DOCSIS 3.0 and IP phones.
Shutdown
Control “ON”
Shutdown
Control “OFF”
RF Out 1
RF Out 1
RF Out 2
RF Out 2
RF Out 3
RF Out 3
RF Input
RF Input
RF Out 4
RF Out 4
RF Out 5
(Phone Out)
APS3625
Figure 1: Functional Block Diagram “ON” Mode
RF Out 5
(Phone Out)
APS3625
Figure 2: Functional Block Diagram Bypass Mode
204226B • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 19, 2016
N/C
SD_CNTL
VDD
N/C
N/C
VID_OUT_1
APS3625
24
23
22
21
20
19
RF_Match_I
1
18
N/C
RF_Match_O
2
17
VID_OUT_2
RF_IN_Normal
3
16
N/C
15
VID_OUT_3
GND Paddle
(solder side)
PHN_Bypass
6
13
VID_OUT_4
7
8
9
10
11
12
N/C
N/C
N/C
14
OUT_5
5
PHN_SW_IN
N/C
N/C
4
PHN_Normal
RF_IN_Bypass
TOP VIEW
Figure 2: Pinout Diagram (X-ray Top View)
Table 1: Pin Description
2
PIN
NAME
DESCRIPTION
PIN
NAME
DESCRIPTION
1
RF_Match_I
Input from RF Match
24
N/C
No Connection
2
RF_Match_O
Output to RF Match
23
SD_CNTL
Control Input for Shut Down
3
RF_IN_Normal
RF Input - Normal Mode
22
VDD
VDD
4
RF_IN_Bypass
RF Input - Bypass Mode
21
N/C
No Connection
5
N/C
No Connection
20
N/C
No Connection
6
PHN_Bypass
"Phone" Output - Bypass
Mode
19
VID_OUT_1
Video Output 1
7
PHN_Normal
"Phone Output - Normal
Mode
18
N/C
No Connection
8
N/C
No Connection
17
VID_OUT_2
Video Output 2
9
PHN_SW_IN
Input to Phone Switch
16
N/C
No Connection
10
OUT_5
Output 5
15
VID_OUT_3
Video Output 3
11
N/C
No Connection
14
N/C
No Connection
12
N/C
No Connection
13
VID_OUT_4
Video Output 4
PRELIMINARY DATA SHEET
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APS3625
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Minimum and Maximum Ratings
PARAMETER
MIN
MAX
UNIT
Supply Voltage (VCC)
0
+8
V
RF Input Power
-
+40
dBmV
ESD Rating
500
1000
-
V
MSL Level
3-260
-
-
COMMENTS
per channel
132 channel loading
Human Body Model, Class 1B
Charged Device Model, Class 3
Stresses in excess of the absolute ratings may cause permanent damage. Functional operation is not implied under
these conditions. Exposure to absolute ratings for extended periods of time may adversely affect reliability.
Table 3: Operating Ranges
PARAMETER
MIN
TYP
MAX
UNIT
Operating Frequency
50
-
1000
MHz
Supply Voltage (VDD)
-
+3.3
-
V
RF Input Power (PIN)
-15
-
+15
dBmV
Case Temperature
(Performance Spec Complaince)
-5
-
+100
°C
COMMENTS
The device may be operated safely over these conditions; however, parametric performance is guaranteed only
over the conditions defined in the electrical specifications.
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3
APS3625
Table 4: Electrical Specifications
(VDD = +3.3 V; 75 Ω system)
COMMENTS
PARAMETER
MIN
TYP
MAX
UNIT
Gain (Outputs 1-4)
3.0
4.0
-
dB
55 MHz to 1 GHz
Gain (Output 5)
2.5
4.0
-
dB
55 MHz to 1 GHz
Noise Figure
-
4.8
-
dB
Ch 1-4 in "ON" mode
Noise Figure
-
4.2
-
dB
Ch 5 in "ON" mode
CTB
-
-70
-60
dBc
See note 1
CSO
-
-60
-56
dBc
See note 1
XMOD
-
-67
-
dBc
See note 1
Isolation Between Output and Any
Other Output Port
-
25
-
dB
Isolation Between Control
Input and Outputs
-
-20
-
dB
Isolation Between Input and Output
-
25
-
dB
Input Return Loss
-
-13
-
dB
"ON" mode
Input Return Loss
-
-20
-
dB
"bypass" mode
Bypass Path Attenuation
-
0.4
0.7
dB
55 MHz
Bypass Path Attenuation
-
1.0
1.5
dB
1 GHz
3.0
-
3.3
V
All outputs active
0
-
0.5
V
Phone in bypass mode
100
130
170
mA
-
0.1
-
uA
Shutdown Control Voltage - "ON"
Shutdown Control Voltage - "OFF"
Power "ON" Current
Current in Power Loss Mode
pin 23 to any output
Working with external Load
Switch SI869DH
Notes:
(1) Distortion measured with 132 NTSC flat analog channels, 15 dBmV/ch input power.
(2) 3.3 V supply must be maintained for bybass function to work.
4
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APS3625
PERFORMANCE DATA - S-Parameters
Figure
? Input
InputReturn
Return
Loss
vs. Frequency
Figure 3:
Loss
vs. Frequency
0
-5
'ON' Mode
Bypass Mode
-10
S11 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
700
800
900
1000
1100
Frequency (MHz)
Figure ?: Gain vs. Frequency
Figure 4: Gain vs. Frequency
6
5
4
S21 (dB)
3
Ch1-Ch4
2
Ch5
Ch5 Bypass
1
0
-1
-2
0
100
200
300
400
500
600
700
800
900
1000
1100
Frequency (MHz)
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5
APS3625
Figure ?: Reverse Isolation vs. Frequency
Figure 5: Reverse Isolation vs. Frequency
0
-5
-10
S12 (dB)
-15
-20
-25
-30
-35
Ch1-Ch4
-40
Ch5
-45
Ch5 Bypass
-50
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
Frequency (MHz)
Figure6:?:Output
Output
Return
vs. Frequency
Figure
Return
LossLoss
vs. Frequency
0
-5
Ch1-Ch4
Ch5
-10
Ch5 Bypass
S22 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
700
800
900
1000
1100
Frequency (MHz)
6
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APS3625
Figure ?: Isolation between Control Input (pin 23)
and Output Pins
Figure 7: Isolation between Control Input (Pin 23) and Output Pins
0
Control Input Isolation (dB)
-10
-20
-30
-40
-50
-60
-70
-80
0
300
600
900
1200
1500
1800
2100
2400
2700
3000
2700
3000
Frequency (MHz)
Figure ?: Output-to-Output Isolation vs. Frequency
Figure 8: Output-to-Output Isolation vs. Frequency
0
Output-to-Output Isolation (dB)
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0
300
600
900
1200
1500
1800
2100
2400
Frequency (MHz)
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7
APS3625
Figure ?: Noise Figure vs. Frequency
Figure 9: Noise Figure vs. Frequency
7
Ch5 'ON' Mode
Ch5 'OFF' Mode
6
Ch1-Ch4 'ON' Mode
Noise Figure(dB)
5
4
3
2
1
0
0
100
200
300
400
500
600
700
800
900
1000
1100
Frequency (MHz)
Figure?:
CTBvs.vs.
Frequency
Figure 10: CTB
Frequency
( 132 Channels
Flat Analog
Channels,
)
132 Channels
Flat Analog
Channels,
1919dBmV/Ch
dBmV/Ch Output
OutputPower
Power
-50
Ch1-Ch5 'ON'
-60
Ch5 Bypass
CTB(dBc)
-70
-80
-90
-100
-110
0
100
200
300
400
500
600
700
800
900
1000
Frequency(MHz)
8
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APS3625
Figure
?: CSO
vs. Frequency
Figure
11: CSO
vs. Frequency
( 132
Flat
Analog Channels,
Channels, 19dBmV/Ch
Output
Power
)
(132 Channels
Flat
Analog
19 dBmV/Ch
Output
Power)
-50
Ch1-Ch5 'ON'
-55
Ch5 Bypass
-60
CSO (dBc)
-65
-70
-75
-80
-85
-90
-95
0
100
200
300
400
500
600
700
800
900
1000
Frequency(MHz)
Figure
?: XMOD vs. Frequency
Figure 12: XMOD vs. Frequency
( 132 Flat Analog Channels, 19dBmV/ch Output Power )
(132 Channels Flat Analog Channels, 19 dBmV/Ch Output Power)
-60
Ch1-Ch5 'ON'
-65
XMOD(dBc)
Ch5 Bypass
-70
-75
-80
-85
0
100
200
300
400
500
600
700
800
900
1000
Frequency(MHz)
PRELIMINARY DATA SHEET
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9
APS3625
APPLICATION INFORMATION
APS3625
5 Way Active Power Splitter
with external MOSFET
R2
C1 6
1 2 3
VDD=3.3V; IDD=125mA
M1
C1 9
Si1869DH
6 5 4
Shutdown
Control
C2 0
C1 7
R1
C1 4
L1
C1 0
N/C
24
1
C2
L6
22
2
C1 8
RF Input
23
C1
C3
N/C
21
N/C
20
U1
3
16 N/C
4
15
N/C 5
6
Phone Out
19
18 N/C
L2
17
14 N/C
7
8
N/C
9
10
11
N/C
Video 1 Out
C1 5
C9
Video 2 Out
C1 3
L3
C8
Video 3 Out
C1 2
L4
13
12
N/C
C7
Video 4 Out
C5
C4
Padle
C6
L5
C1 1
Figure 13: 5-Way Active Power Splitter with external MOSFET
Note:
Pin 22 must have 3.3 V maintained, even during power loss. This is normally accomplished by a battery backup. Upon
power loss, the FET load switch (SI 1869DH) cuts off power to the five output amplifiers, and puts the APS3625 in bypass
mode.
10
PRELIMINARY DATA SHEET
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APS3625
APPLICATION INFORMATION
Table 5: Application Bill-of-Materials
Item
Footprint
Description
QTY
Vendor
Vendor Pin
C1, C4, C6, C11,
C12, C13,C14, C15,
C16, C17, C20
402
0.01 uF Capacitor
10
Murata
GRM155R71H103KA88D
C2, C3
201
0.01 uF Capacitor
2
Murata
GRM033R70J103KA01
C5, C7, C8, C9, C10
402
100 pF Capacitor
5
Murata
GRM155R71H101KA01D
C18
201
0.5 pF Capacitor
1
Johanson
Technology
250R05L0R5CV4T
C19
402
1000 pF Capacitor
1
Murata
GRM155R71H102KA88D
L6
201
10 nH Inductor
1
TDK
445-1582-2-ND
R1
402
1 Meg 5% Resistor
1
Panasonic
ERJ-2GEJ105X
R2
402
100 K 5% Resistor
1
Panasonic
ERJ-2GEJ104X
L1, L2, L3, L4, L5
603
470 nH Inductor
5
Coilcraft
0603LS-471XJLB
U1
4 x4 24 pin
MLF
5 way Active power
Splitter
1
ANADIGICS
APS3625E1
M1
SC70-6
Load Switch with
Level shift
1
Vishay Siliconix
SI1869DH-T1_E3
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11
APS3625
PACKAGE OUTLINE
Figure 14: S34 Package Outline - 24 Pin 4 mm x 4 mm x 0.9 mm QFN
TOP BRAND
Pin 1 Identifier
Date Code
YY = Year WW= Work Week
APS3625
LLLLLNN
YYWWCC
Part Number
Lot Number
Country Code (CC)
Figure 15: Branding Specification
12
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APS3625
Figure 16: Tape & Reel Packaging
Table 6:Tape & Reel Dimensions
PACKAGE TYPE
TAPE WIDTH
POCKET PITCH
REEL CAPACITY
MAX REEL DIA
4 mm x 4 mm x 0.9
mm
12 mm
8 mm
2500
13"
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13
APS3625
ORDERING INFORMATION
ORDER NUMBER
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
COMPONENT
PACKAGING
APS3625RS34P8
-5 oC to +85 oC
24 Pin
4 mm x 4 mm x 0.9 mm
LPCC (QFN)
2,500 piece Tape & Reel
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PRELIMINARY DATA SHEET
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