The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
Caution: Observe precautions when handling because these devices are sensitive to electrostatic discharge
GaAs MULTI-CHIP MODULE
MC-7881
870 MHz CATV 18 dB POWER DOUBLER AMPLIFIER
Document No. PG10313EJ02V0DS (2nd edition)
Date Published December 2006 NS CP(N)
DESCRIPTION
The MC-7881 is a GaAs Multi-chip Module designed for use in CATV applications up to 870 MHz. This unit has
low distortion, low noise figure and return loss across the entire frequency band.
Reliability and performance uniformity are assured by our stringent quality and control procedures.
FEATURES
• Low distortion
• High linear gain GL = 18.0 dB MIN. @ f = 870 MHz
• Low return loss
ORDERING INFORMATION
Part Number
Order Number
Package
Supplying Form
MC-7881
MC-7881-AZ
7-pin special with heatsink
(Pb-Free)
25 pcs MAX./Tray
Remark To order evaluation samples, contact your nearby sales office.
Part number for sample order: MC-7881-AZ
ABSOLUTE MAXIMUM RATINGS (TA = +25C)
Parameter
Symbol
Unit
Supply Voltage
VDD
V
Input Voltage Note
Vi
dBmV
Operating Case Temperature
TC
C
Storage Temperature
Tstg
C
Note In case of single tone
<R>
Data Sheet PG10313EJ02V0DS
2
MC-7881
RECOMMENDED OPERATING CONDITIONS (ZS = ZL = 75 )
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Supply Voltage
VDD
23.5
24.0
24.5
V
Input Voltage
Vi
110 channel,
10 dB tilted across the band
36.0
39.0
dBmV
Operating Case Temperature
TC
30
+25
+85
C
ELECTRICAL CHARACTERISTICS (TC = 305C, VDD = 24 V, ZS = ZL = 75 )
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
Linear Gain
GL
f = 870 MHz
18.0
19.0
dB
Gain Slope
GSlope
f = 40 to 870 MHz
0.2
0.6
1.0
dB
Gain Flatness
GFlatness
f = 40 to 870 MHz, Peak to valley
0.6
dB
Noise Figure 1
NF1
f = 50 MHz
6.5
dB
Noise Figure 2
NF2
f = 870 MHz
7.0
dB
Operating Current
IDD
RF OFF
310
360
mA
Composite Triple Beat
CTB
110 channel,
60
dBc
Cross Modulation
XM
VO = 52 dBmV at 745.25 MHz,
55
dBc
Composite 2nd Order Beat
CSO
10 dB tilted across the band
63
dBc
Input Return Loss 1
RLi1
f = 40 to 160 MHz
20
dB
Input Return Loss 2
RLi2
f = 160 to 320 MHz
19
dB
Input Return Loss 3
RLi3
f = 320 to 640 MHz
17.5
dB
Input Return Loss 4
RLi4
f = 640 to 870 MHz
16
dB
Output Return Loss 1
RLo1
f = 40 to 160 MHz
20
dB
Output Return Loss 2
RLo2
f = 160 to 320 MHz
19
dB
Output Return Loss 3
RLo3
f = 320 to 640 MHz
17.5
dB
Output Return Loss 4
RLo4
f = 640 to 870 MHz
16
dB
Data Sheet PG10313EJ02V0DS
3
MC-7881
PACKAGE DIMENSIONS
7-PIN SPECIAL WITH HEATSINK (UNIT: mm)
PIN CONNECTION
Data Sheet PG10313EJ02V0DS
4
MC-7881
NOTES ON CORRECT USE
(1) The space between PC board and root of the lead should be kept more than 1 mm to prevent undesired
stress to the lead and also should be kept less than 4 mm to prevent undesired parasitic inductance.
Recommended that 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.
RECOMMENDED SOLDERING CONDITIONS
This product should be soldered and mounted under the following recommended conditions. For soldering
methods and conditions other than those recommended below, contact your nearby sales office.
Soldering Method
Soldering Conditions
Recommended Condition Symbol
Partial Heating
Peak temperature (pin temperature) : 350C or below Note
Soldering time (per pin of device) : 3 seconds or less
Note The point of pin part heating must be kept more than 1.2 mm distance from the root of lead.
Data Sheet PG10313EJ02V0DS 5
MC-7881
Caution GaAs Products
This product uses gallium arsenide (GaAs).
GaAs vapor and powder are hazardous to human health if inhaled or ingested, so please observe the
following points.
• Follow related laws and ordinances when disposing of the product. If there are no applicable laws
and/or ordinances, dispose of the product as recommended below.
1. Commission a disposal company able to (with a license to) collect, transport and dispose of
materials that contain arsenic and other such industrial waste materials.
2. Exclude the product from general industrial waste and household garbage, and ensure that the
product is controlled (as industrial waste subject to special control) up until final disposal.
• Do not burn, destroy, cut, crush, or chemically dissolve the product.
• Do not lick the product or in any way allow it to enter the mouth.