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ARCHIVE INFORMATION
MHW1244N
1
RF Device Data
Freescale Semiconductor
CATV Amplifier Module
Features
• Specified for 12-, 22- and 26-Channel Loading
• Excellent Distortion Performance
• Superior Gain, Return Loss and DC Current Stability over Temperature
• Capable of Handling Multiple Channels in the Return Path with Good
Distortion Performance
• Silicon Bipolar Transistor Technology
• Unconditionally Stable Under All Load Conditions
Applications
• CATV Systems Operating in the 5 to 200 MHz Frequency Range
• Designed for Broadband Applications Requiring Low Distortion
Characteristics
• Specified for Use as a Return Path Amplifier for Low-, Mid- and High-Split
2-Way Cable TV Systems
Description
• 24 Vdc Supply, 5 to 200 MHz, CATV Reverse Amplifier
• Replaced MHW1244. There are no form, fit or function changes with this
part replacement.
• RoHS Compliant
Table 1. Maximum Ratings
Rating Symbol Value Unit
RF Voltage Input (Single Tone) V
in
+65 dBmV
DC Supply Voltage V
CC
+28 Vdc
Operating Case Temperature Range T
C
- 20 to +100 °C
Storage Temperature Range T
stg
- 40 to +100 °C
Table 2. Electrical Characteristics (V
CC
= 24 Vdc, T
C
= + 30°C, 75 W system)
Characteristic Symbol MHW1244 Units
Power Gain @ 10 MHz G
p
24.0 ± 0.5 dB
Frequency Range (Response/Return Loss)
(1)
BW 5.0-200 MHz
Cable Slope Equivalent (5.0 - 200 MHz) S - 0.2 Min/+ 0.8 Max dB
Gain Flatness (5.0 - 200 MHz) G
F
± 0.2 Max dB
Input/Output Return Loss (5.0 - 200 MHz)
(1)
IRL/ORL 18.0 Min dB
Cross Modulation Distortion @ +50 dBmV per ch.
12-Channel FLAT (5.0 - 120 MHz)
22- Channel FLAT (5.0 - 175 MHz)
(2)
(3)
26- Channel FLAT (5.0 - 200 MHz)
XMD
12
XMD
22
XMD
26
- 66 Typ
- 61 Max
- 61 Typ
dBc
dBc
dBc
1. Response and return loss characteristics are tested and guaranteed for the full 5.0 - 200 MHz frequency range.
2. Freescale 100% distortion and noise figure testing is performed over the 5.0 - 175 MHz frequency range. Cross modulation and composite
triple beat testing are with 22- channel loading; Video carriers used are:
T7 - T13 7.0 - 43.0 MHz 7- Channels
2 - 6 55.25 - 83.25 MHz 5- Channels
A - 7 121.25 - 175.25 MHz 10- Channels
3. Video carriers used for 12-Channel typical performances are T7 - 6; For 26- Channel typical performance, Channels 8, 9, 10 and 11 are added
to the 22-Channel carriers listed above.
Document Number: MHW1244N
Rev. 4, 5/2006
Freescale Semiconductor
Technical Data
MHW1244N
5- 200 MHz, 24.0 dB
26-CHANNEL
CATV HIGH - SPLIT
REVERSE AMPLIFIER
CASE 1302-01, STYLE 1
Freescale Semiconductor, Inc., 2006, 2008. All rights reserved.
