Text preview for : RTV01(CATV).pdf part of Rficsolutions.Inc RTV01 The RTV01 is a CATV Line Amplifier IP block.
CATV Line Amplifier designed using GaAs
Enhancement mode psuedomorphic high electron
mobility transistor (pHEMT). The amplifier
provides low distortion and noise figure along with
flat gain. The part is biased at 8V. This covers the
range for 40 to 870 MHz band.
The optimized on-chip impedance matching
circuitry provides 50 ohm nominal RF input
impedance and is provided in a low-cost industrystandard
14 Pin SOIC Package.
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RFIC Solutions Inc.
CATV Line Amplifier
Description .
Preliminary Datasheet RTV01
Functional Diagram
Supply Biasing Ckt
.
The RTV01 is a CATV Line Amplifier IP block. CATV Line Amplifier designed using GaAs Enhancement mode psuedomorphic high electron mobility transistor (pHEMT). The amplifier provides low distortion and noise figure along with flat gain. The part is biased at 8V. This covers the range for 40 to 870 MHz band. The optimized on-chip impedance matching circuitry provides 50 ohm nominal RF input impedance and is provided in a low-cost industrystandard 14 Pin SOIC Package. Applications. · CABLE TV .
Matching Matching
Key Features. · · · Gain flatness of 2.5 dB Small Size, Low Cost High Performance
.
Electrical Specifications.
.
Conditions: Vdd = 8 V & TA=25 0C
Parameter
Frequency Range Gain Noise Figure Voltage Output CTB 77 Channels 110 Channels 128 Channels CSO 77 Channels 110 Channels 128 Channels XMOD 77 Channels 110 Channels March 12, 2007
Min
40 11.8 2
Typical
Max
870 13.8 5
Units
MHz dB dB dBmV dBc dBc dBc dBc dBc dBc
44 -70 -68 -67 -72 -72 -70
-64
-68
-71 -68 www.rficsolutions.com
-61
dBc dBc Page 1 of 5
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RFIC Solutions Inc.
CATV Line Amplifier
128 Channels Supply Current Cable Equivalent Slope DC Voltage Return Loss Input Output -66 199 8 12 15
Preliminary Datasheet RTV01
dBc mA dB V dB dB
Measured results.
Gain Vs Frequency
20
.
Noise Fig Vs Frequency
Noise Figure
Gain
7 6
15
Noise Figure (d 5 4 3 2 1
S21 (d B)
10
5
0 0 0.1 0.2 0.3 0.4 0.5 0.6 Frequency(GHz) 0.7 0.8 0.9 1
0 0 100 200 300 400 500 600 Frequency (MHz) 700 800 900 1000
Input Return Loss Vs Frequency
Input Reflection Cofficient
0.4 0.6
-5
Output Return Loss Vs Frequency
Output Reflection Cofficient
0 -10 -11 -12 -13 -14 -15 .
0.2
0.8
1
-10 . S 2 2 (d B ) -15 -20 -25 0
S 1 1 (d B )
-16 Frequency(GHz)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Frequency (GHz)
March 12, 2007
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RFIC Solutions Inc.
CATV Line Amplifier
Reverse Isolation Vs Frequency
Reverse Isolation
-35 -37
Preliminary Datasheet RTV01
Stability Factor over Frequency (Simulated)
35 30
StabFact1
.
-39 S1 2 (d B ) -41 -43
25 20 15 10
-45 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Frequency(GHz)
0
100
200
300
400
500
600
700
800
900
freq, MHz
Gain Vs Pin (Simulated)
20 15 10 5 0 -5 -20 -10 0 10 20 30
50 40 30
Pout Vs Pin (Simulated)
Gain
pout
20 10 0 -10 -30 -20 -10 0 10 20 30
pin
pin
PCB board for CATV
Values for Offchip Components
C4 L2 R1 C3 L1 C1 C2
Components C1 C2 C3 C4 L1 L2 R1
Size 0603 0603 0603 0805 0805 0805 0603
Value 560 pF 560 pF 200 pF 1000 pF 80 nH 150nH 100 Ohm
March 12, 2007
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Data subject to change without Notice
RFIC Solutions Inc.
CATV Line Amplifier
PIN Diagram .
Preliminary Datasheet RTV01 Note: Pin description with 14 pin SOIC package as follows: Pin 1, 14 are connected through the feedback that uses off chip inductor L1 of 80nH, R1 of 100 ohm and a capacitor of C3 of 200pF. Pin 14 is connected to VDD through Off chip inductor L2 off 150nH. Pin 3, 12 are connected to RFin and RFout through the off chip capacitors C1 of 560pF & C2 of 560pF respectively. A bypass capacitor C4 of value 1000pF has been added for better performance. Pin 2, 11 are the ground pins. Pin 4, 5, 6, 7, 8, 9, 10& 13 are the not connected (NC Pins) The above amplifier will operate on VDD = 8V.
L1
R1
C3
C4 L2 1 14
RFin
C1
2 12
VDD
RFout
5 7 10 8
CATV Module
.
March 12, 2007
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RFIC Solutions Inc. Proprietary Information
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RFIC Solutions Inc.
CATV Line Amplifier
Outline Drawing for Package with Dimensions
All dimensions are in Inches
14
Preliminary Datasheet RTV01
B
13 12 11
G 10 9 8
E
H
1
2
3
4
5
6
7
A
A1
D
Seating plane Symbol
A A1 B C D E G H h L a'
Min
0.060 0.004 0.014 0.007 0.337 0.150 0.050 0.230 0.010 0.016 0'
Max
0.068 0.008 0.019 0.010 0.346 0.157 0.050 0.244 0.016 0.035 8'
NOTE
1) Lead width and lead thickness exclusive of solder plate 2) Package outline exclusive of mold flashes and burr dimension 3) Allowable mold flash is 5 mil per side 4) Dimensions are given in inches 5) Lead coplanarity is 0.003 inch max
March 12, 2007
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Data subject to change without Notice