MC-7831-HA
NEC's 1 GHz GaAs CATV 18 dB PUSH-PULL AMPLIFIER
OUTLINE DIMENSIONS (Units in mm)
FEATURES
• SPECIFIED FOR INCREASED BANDWIDTH TO 1 GHz
• GaAs ACTIVE DEVICES
PACKAGE OUTLINE H02
45.08 MAX
• LOW DISTORTION
38.1 0.25
27.5 MAX
+ 0.25
4.25
• HIGH LINEAR GAIN:
- 0.35
3.2 MAX
MC-7831-HA - GL = 18 dB MIN at f = 870 MHz
VDD
14.85 MAX
5
• LOW RETURN LOSS
4.0 0.25
8.1 MAX
1
9
• LOW GAIN CHANGE OVER TEMPERATURE
19.05 0.38
In
Out
• SPECIFIED FOR 79, 110, and 132 CHANNELS
PERFORMANCE
6-32 unc 2B
21.5 MAX
25.4 0.25
2.54 0.25
2
3 7 8
Gnd
0.51 0.050
• HIGH RELIABILITY AND RUGGEDNESS:
Withstands environmental extremes as well as Silicon
devices (Surge, ESD, Etc.)
1
2
3
5
7 8 9
10.75 0.25
DESCRIPTION
2.54 0.38
4.19 0.13
NEC's MC-7831-HA is a GaAs Multi-Chip Module designed
for use as input stages in CATV applications up to 1 GHz. Be-
cause this unit is a GaAs device, it has low distortion, low noise
figure, and low return loss across the entire frequency band.
A
6.3
2.5
0.38.. A
0.05
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.
APPLICATIONS
• CATV HEADEND SYSTEMS
• CATV OPTICAL NODES
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.
• CATV DISTRIBUTION AMPS
ELECTRICAL CHARACTERISTICS (TA = 30±5 °C, VDD = 24 V, ZS = ZL = 75 Ω)
PART NUMBER
MC-7831-HA
TEST CONDITIONS
SYMBOLS
CHARACTERISTICS
UNITS
MHz
dB
MIN
50
TYP
–
MAX
1000
21.0
1.0
+0.35
+0.85
6.5
7.0
–
BW
GL
S
Frequency Range
Linear Gain
18.0
0.2
–
f = 870 MHz
Gain Slope
dB
–
f = 40 to 870 MHz
40 to 870 MHz
40 to 1000 MHz
f = 50 MHz
Gf1
Gf2
Gain Flatness 1
Gain Flatness 2
Noise Figure 1
Noise Figure 2
Input Return Loss
dB
-0.35
-0.35
–
–
dB
–
dB
–
NF
–
–
f = 870 MHz
RLin
dB
dB
20.0
19.0
17.5
16.0
10.0
20.0
19.0
17.5
16.0
12.0
180
–
40 to 160MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
870 to 1000 MHz
40 to 160MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
870 to 1000 MHz
RF OFF
–
–
–
–
–
–
–
–
RLout
Output Return Loss
–
–
–
–
–
–
–
–
–
–
IDD
Operating Current
mA
–
240
(Continued on next page)
Date Published January 2007
CEL [ CALIFORNIA EASTERN LABS ]
