MC-7834-KC
NEC's 870 MHz GaAs CATV 20 dB PUSH-PULL AMPLIFIER
FEATURES
OUTLINE DIMENSIONS
(Units in mm)
PACKAGE OUTLINE H02
45.08 MAX
38.1
±
0.25
3.2 MAX
27.5 MAX
4.25
+ 0.25
- 0.35
• 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.)
V
DD
14.85 MAX
4.0
±
0.25
8.1 MAX
19.05
±
0.38
6-32 unc 2B
0.51
±
0.050
21.5 MAX
12.9 MAX
1
In
9
Out
5
25.4
±
0.25
2.54
±
0.25
2 3 7 8
Gnd
NEC's 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 NEC's 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 NEC's stringent quality
and process control procedures. These parts come in industry
compatible hybrid packages.
2.62–0.35
DESCRIPTION
4.19
±
0.13
A
1 2 3
5
7 8 9
10.75±0.25
2.54
±
0.38
6.3
0.38.. A
2.5
±
0.05
APPLICATIONS
• CATV HEADEND SYSTEMS
• CATV OPTICAL NODES
• CATV DISTRIBUTION AMPS
ELECTRICAL CHARACTERISTICS
(T
A
= 30±5 °C, V
DD
= 24 V, Z
S
= Z
L
= 75
Ω)
PART NUMBER
MC-7834-KC
TYP
–
–
–
–
–
–
–
–
–
–
–
–
–
–
SYMBOLS
BW
G
L
S
Gf
NF
RL
Frequency Range
Linear Gain
Gain Slope
Gain Flatness
Noise Figure 1
Noise Figure 2
CHARACTERISTICS
UNITS
MHz
dB
dB
dB
dB
dB
50
20.0
0.2
–
–
–
20.0
19.0
17.5
16.0
180
–
–
–
MIN
MAX
870
21.0
1.0
0.7
6.5
7.0
–
–
–
–
325
-59
-52
-59
TEST CONDITIONS
f = 870 MHz
f = 40 to 870 MHz
40 to 870 MHz; Peak to Valley
f = 50 MHz
f = 870 MHz
40 to 160MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
RF OFF
f = 40 to 870 MHz; 110 Channels,
V
OUT
= 44 dBmV, Flat
Input/Output Return Loss
IDD
CTB
XMod
CSO
Operating Current
Composite Triple Beat
Cross Modulation
Composite Second Order
mA
dBc
dBc
dBc
Date Published January 2007
CEL [ CALIFORNIA EASTERN LABS ]
