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MC-7842 View Datasheet(PDF) - California Eastern Laboratories.

Part Name
Description
Manufacturer
MC-7842
CEL
California Eastern Laboratories. CEL
MC-7842 Datasheet PDF : 2 Pages
1 2
HIGH GAIN CATV MC-7842
POWER DOUBLER AMPLIFIER MC-7843
FEATURES
• GALLIUM ARSENIDE ACTIVE DEVICES
• HIGH GAIN/LOW DISTORTION
MC-7842: 22 dB Linear Gain
MC-7843: 24 dB Linear Gain
LOW DC CURRENT DRAW
375 mA MAX DC Current (360 TYP)
• LOW GAIN CHANGE OVER TEMP
0.5 dB TYP change from -30 to +100°C
• HIGH RELIABILITY/RUGGEDNESS
Withstands environmental extremes as well as Silicon
devices (surge, ESD, etc.)
• INDUSTRY COMPATIBLE PACKAGE
DESCRIPTION
The MC-7842 and MC-7843 are GaAs hybrid integrated cir-
cuits designed to be used as the output stage in CATV cable
distribution amplifier applications up to 870 MHz. The only dif-
ference between the MC-7842 and the MC-7843 is gain of
about 22 dB and 24 dB respectively. With this product, NEC
has made significant advancements to their initial power dou-
bler product offering, including lower distortion, higher crash
point, less variation in gain over temperature, a reduction in
out of band gain at the high end, and improved ability to sur-
vive an overdrive. Like the previous products, these devices
survive such hazards as surge and ESD as well as their sili-
OUTLINE DIMENSIONS (Units in mm)
PACKAGE OUTLINE H02
3.2 MAX
14.85 MAX
8.1 MAX
45.08 MAX
38.1±0.25
27.5 MAX
19.05±0.38
25.4±0.25
2.54±0.25
12 3 5 789
4.25
+
-
0.25
0.35
4.0±0.25
6-32 unc 2B
21.5 MAX
VDD
5
1
9
In
Out
2 378
0.51±0.05
Gnd
10.75 ±0.25
4.19±0.13 A
0.38.. A
0.51±0.05
6.3 2.5
±0.05
2.54 ±0.38
con 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 performance, and reliability is assured by NEC's
stringent quality and process control procedures. Both parts
come in industry compatible hybrid packages.
ELECTRICAL CHARACTERISTICS (TCASE = 30°C, VDD = 24 V, ZS = ZL = 75 )
SYMBOLS
PART NUMBER
PARAMETERS
MC-7842
UNITS
MIN
TYP
MAX
MIN
BW
Frequency Range
MHz
50
870
50
GL
Linear Gain
S
Gain Slope
dB
22.0
23.5 24.0
dB
0.3
0.9
1.5
0.3
Gf
Gain Flatness
dB
1.0
NF
Noise Figure
dB
dB
IDD
Operating Current, PIN = none
dB
CTB
Composite Triple Beat Distortion
dBc
X-Mod Cross Modulation1
dBc
CSO
Composite Second Order Distortion dBc
6.3
6.8
275
375
275
-64
-60
-60
-55
-66
-63
RL in/out Input/Output Return Loss
dB
20.0
dB
19.0
dB
17.5
dB
16.0
20.0
19.0
17.5
16.0
Note:
1. Measured per US standard methods and procedures (using selective level meter).
MC-7843
TYP
0.9
-64
-60
-66
MAX
870
25.5
1.5
1.0
6.0
6.5
375
-60
-55
-63
CONDITIONS
f = 870 MHz
50 to 870 MHz
50 to 870 MHz;
Peak to Valley
50 MHz
870 MHz
110 channels,
Vout = +50dBmV,
at 745.25 MHz,
10dB tilted across
the band.
40 to 160 MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
California Eastern Laboratories
 

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