NEC's 870 MHz GaAs CATV
25 dB POWER DOUBLER AMPLIFIER
OUTLINE DIMENSIONS
(Units in mm)
PACKAGE OUTLINE H02
FEATURES
GaAs ACTIVE DEVICES
LOW DISTORTION
HIGH LINEAR GAIN:
MC-7847-KC - GL = 25 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
9
1
In
Out
Gnd
2 3 7 8
2.54 0.38
21.5 MAX
12.9 MAX
6-32 unc 2B
2.540.25
1 2 3 5
7 8 9
4.190.13
14.85 MAX
4.25
+ 0.25
- 0.35
4.00.25
5
10.75 0.25
27.5 MAX
38.10.25
45.08 MAX
0.510.05
0.510.05
2.62
0.35
3.2 MAX
A
0.38.. A
25.40.25
19.050.38
8.1 MAX
2.5
6.3
0.05
NEC's MC-7847-KC is a GaAs Multi-Chip Modules designed
for use as output stages in CATV applications up to 870 MH
z
.
This is a high gain device offering 25 dB minimum gain at
870 MHz. Because this unit is a GaAs device it has low dis-
tortion, low noise figure, and low return loss across the entire
frequency band.
The MC-7847-KC is similar to NEC's standard push-pull
devices, but the higher current allows for 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 performance, and reliability is assured by NEC's stringent
quality and process control procedures. These parts come in
industry compatible hybrid packages.
APPLICATIONS
CATV HEADEND SYSTEMS
CATV OPTICAL NODES
CATV DISTRIBUTION AMPS
MC-7847-KC
California Eastern Laboratories
PART NUMBER
MC-7847-KC
TEST CONDITIONS
SYMBOLS
CHARACTERISTICS
UNITS
MIN
TYP
MAX
BW
Frequency Range
MHz
50
870
G
L
Linear Gain
dB
25.0
26.0
f = 870 MHz
S
Gain Slope
dB
1.0
1.4
1.8
f = 40 to 870 MHz
Gf
Gain Flatness
dB
0.6
40 to 870 MHz; Peak to Valley
NF
Noise Figure 1
Noise Figure 2
dB
5.5
f = 50 MHz
6.0
f = 870 MHz
RLi
Input Return Loss
dB
20.0
40 to 160MHz
20.0
160 to 320 MHz
19.5
320 to 640 MHz
17.0
640 to 870 MHz
RL
O
Output Return Loss
mA
20.0
40 to 160MHz
I
DD
Operating Current
mA
350
420
RF OFF
CTB
Composite Triple Beat
dBc
-60
110 Channels
V
OUT
= 50 dBmV at 745.25 MHz, 10 dB
tilted across the band
XMod
Cross Modulation
1
dBc
-55
CSO
Composite Second Order
dBc
-63
ELECTRICAL CHARACTERISTICS
(T
A
= 305 C, V
DD
= 24 V, Z
S
= Z
L
= 75 )
1. Measured per US standard methods and procedures (using selective level meter).
DESCRIPTION
MC-7847-KC
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably
be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify CEL for all damages resulting from such improper use or sale.
PART NUMBER
PACKAGE
QUANTITY
MC-7847-KC-AZ 7-pin special with heatsink 50pcs max/ Tray
ORDERING INFORMATION
ABSOLUTE
MAXIMUM RATINGS
1
(T
CASE
= 30 C)
SYMBOLS
PARAMETERS
UNITS RATINGS
V
DD
Supply Voltage
V
30
V
I
Input Voltage (Single Tone)
2
dBmV
65
T
C
Operating Case Temperature
C
-30 to +100
T
STG
Storage Temperature
C -40 to +100
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
2. Maximum single channel power applied to the input for 1 minute
with no measurable degradation in performance.
SYMBOLS PARAMETERS
UNITS MIN TYP MAX
V
DD
Supply Voltage V
23.5 24.0 24.5
V
i
Input Voltage
1
,
dBmV
MC-7847-KC
32.0 35.0
T
C
Operating Case
C
-30 +25 +85
Temperature
RECOMMENDED
OPERATING CONDITIONS
(Z
s
= Z
L
= 75)
Note:
1. Test Conditions: 110 Channels, 10 dB tilted across the band.
1. The space between PC board and root of the lead should be kept
more than 1 mm to prevent undesired stress on the lead and also
should be kept less than 4 mm to prevent undesired parasitic
inductance.
Recommended space is 2.0 to 3.0 mm typical.
2. Recommended torque strength of the screw is 59 to 78 Ncm.
3. Form the ground pattern as wide as possible to minimize ground
impedance. (to prevent undesired oscillation)
All the ground pins must be connected together with wide ground
pattern to decrease impedance difference.
NOTES ON CORRECT USE
This product should be soldered in the following recommended
conditions. Other soldering methods and conditions than the recom-
mended conditions are to be consulted with our sales representa-
tives.
RECOMMENDED SOLDERING CONDITIONS
Soldering
Soldering
Condition
Method
Conditions
Symbol
Pin Part Heating Pin area temperature: less
than 260C
1
Hour: Within 2 sec./pin
Note.
1. The point of pin part heating must be kept at a distance of more
than 1.2 mm from the root of lead.
01/28/2004
4590 Patrick Henry Drive
Santa Clara, CA 95054-1817
Telephone: (408) 919-2500
Facsimile: (408) 988-0279
Subject: Compliance with EU Directives
CEL certifies, to its knowledge, that semiconductor and laser products detailed below are compliant
with the requirements of European Union (EU) Directive 2002/95/EC Restriction on Use of Hazardous
Substances in electrical and electronic equipment (RoHS) and the requirements of EU Directive
2003/11/EC Restriction on Penta and Octa BDE.
CEL Pb-free products have the same base part number with a suffix added. The suffix A indicates
that the device is Pb-free. The AZ suffix is used to designate devices containing Pb which are
exempted from the requirement of RoHS directive (*). In all cases the devices have Pb-free terminals.
All devices with these suffixes meet the requirements of the RoHS directive.
This status is based on CEL's understanding of the EU Directives and knowledge of the materials that
go into its products as of the date of disclosure of this information.
Restricted Substance
per RoHS
Concentration Limit per RoHS
(values are not yet fixed)
Concentration contained
in CEL devices
-A
-AZ
Lead (Pb)
< 1000 PPM
Not Detected
(*)
Mercury
< 1000 PPM
Not Detected
Cadmium
< 100 PPM
Not Detected
Hexavalent Chromium
< 1000 PPM
Not Detected
PBB
< 1000 PPM
Not Detected
PBDE
< 1000 PPM
Not Detected
If you should have any additional questions regarding our devices and compliance to environmental
standards, please do not hesitate to contact your local representative.
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content of its products represents knowledge and belief as of the date that it is provided. CEL bases its knowledge and belief on information
provided by third parties and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better
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