870 MHz GaAs CATV 20 dB PUSH-PULL AMPLIFIER
MC-7834-KC
OUTLINE DIMENSIONS (Units in mm)
PACKAGE OUTLINE H02
FEATURES
• GaAs ACTIVE DEVICES
• LOW DISTORTION
• HIGH LINEAR GAIN:
MC-7834-KC - GL = 21 dB MIN at f = 870 MHz
• LOW RETURN LOSS
• LOW GAIN CHANGE OVER TEMPERATURE
• SPECIFIED FOR 79, 110, and 132 CHANNELS
PERFORMANCE
• HIGH RELIABILITY AND RUGGEDNESS:
Withstands environmental extremes as well as Silicon
devices (Surge, ESD, Etc.)
DESCRIPTION
The MC-7834-KC is a GaAs Multi-Chip Module designed
for use as input stages in CATV applications up to 870 MH
z.
Because this unit is a GaAs device, it has low distortion, low
noise figure, and low return loss across the entire frequency
band. The MC-7834-KC is similar to the standard push-pull
devices, but with the higher current allows better distortion
performance, especially X-Mod.
Like the previous generation of products, these devices sur-
vive such hazards as surge and ESD as well as their silicon
competitors, but deliver superior performance with low DC
current required.
All devices are assembled and tested using fully automated
equipment to maximize consistency in part to part perfor-
mance, and reliability is assured by stringent quality and
process control procedures. These parts come in industry
compatible hybrid packages.
V
DD
91
In Out
Gnd
2 3 7 8
2.54
±0.38
21.5 MAX
12.9 MAX
6-32 unc 2B
2.54
±0.25
1 2 3 5 789
4.19
±0.13
14.85 MAX
4.25
+ 0.25
- 0.35
4.0±0.25
5
10.75±0.25
27.5 MAX
38.1±0.25
45.08 MAX
0.51±0.050
53.0–26.2
3.2 MAX
A
0.38.. A
25.4±0.25
19.05±0.38
8.1 MAX
2.5
6.3
±0.05
APPLICATIONS
• CATV HEADEND SYSTEMS
• CATV OPTICAL NODES
• CATV DISTRIBUTION AMPS
PART NUMBER MC-7834-KC
TEST CONDITIONS
SYMBOLS CHARACTERISTICS UNITS MIN TYP MAX
BW Frequency Range MHz 50 – 870
G
L Linear Gain dB 20.0 – 21.0 f = 870 MHz
S Gain Slope dB 0.2 – 1.0 f = 40 to 870 MHz
Gf Gain Flatness dB – – 0.7 40 to 870 MHz; Peak to Valley
NF
Noise Figure 1
Noise Figure 2
dB – – 6.5 f = 50 MHz
– – 7.0 f = 870 MHz
RL Input/Output Return Loss dB 20.0 – – 40 to 160MHz
19.0 – – 160 to 320 MHz
17.5 – – 320 to 640 MHz
16.0 – – 640 to 870 MHz
IDD Operating Current mA 180 – 325 RF OFF
CTB Composite Triple Beat dBc – – -59 f = 40 to 870 MHz; 110 Channels,
V
OUT = 44 dBmV, Flat
XMod Cross Modulation dBc – – -52
CSO Composite Second Order dBc – – -59
ELECTRICAL CHARACTERISTICS (TA = 30±5 °C, VDD = 24 V, ZS = ZL = 75 Ω)
Date Published January 2007
