NEC MC7856

CATV 22 dB PUSH-PULL AMPLIFIER MC-7856
OUTLINE DIMENSIONS (Units in mm)
FEATURES
• GALLIUM ARSENIDE ACTIVE DEVICES
PACKAGE OUTLINE
• LOW DISTORTION
• LOW NOISE FIGURE
(5.7 dB TYP at 860 MHz)
• HIGH RELIABILITY
(FIT = 125 at heat sink temperature of 100°C,
Report available)
• INDUSTRY COMPATIBLE PACKAGE
45.08 MAX
38.1±0.25
27.5 MAX
2.41 MAX
4.25
+ 0.25
- 0.35
VDD
5
14.85 MAX
4.0±0.25
8.1 MAX
1
9
In
Out
6-32 unc 2B
25.4±0.25
2 3 7 8
2.54±0.25
0.25±0.05
Gnd
21.5 MAX
The MC-7856 is a GaAs hybrid integrated circuit designed to
be used as the input device in CATV applications up to 860
MHz. This unit has a minimum gain of 21.5 dB at 860 MHz,
and because it is a GaAs device, it has lower distortion and
lower noise figure. Reliability is assured by NEC's stringent
quality and process control procedures. Devices are assembled and tested using fully automated equipment to maximize the consistency in part to part performance.
5
7 8 9
12.9 MAX
10.75 ±0.25
1.86±0.25
1 2 3
DESCRIPTION
4.19±0.13
2.54 ±0.38
0.45±0.05
ELECTRICAL CHARACTERISTICS (TCASE = 30 °C, VDD = 24 V, ZS = ZI = 75 Ω)
PART NUMBER
PARAMETERS
SYMBOLS
UNITS
MIN
MC-7856
TYP
MAX
CONDITIONS
BW
Frequency Range
MHz
50
860
GA
Gain
dB
21.5
23.0
f = 860 MHz
S
Gain Slope
dB
0
2.0
50 to 860 MHz
1.0
50 to 860 MHz; Peak to Valley
Gf
Gain Flatness
dB
S11
Input Return Loss
dB
dB
dB
dB
18.0
17.0
16.0
14.5
50 to 160 MHz
160 to 320 MHz
320 to 640 MHz
640 to 860 MHz
S22
Output Return Loss
dB
dB
dB
dB
18.0
17.0
16.0
14.5
50 to 160 MHz
160 to 320 MHz
320 to 640 MHz
640 to 860 MHz
30
S12
Reverse Isolation
dB
CTB
Composite Triple Beat,110 Channels
dB
-60
-55
50 to 860 MHz
VOUT = +44 dBmV/ch
CSO
Composite Second Order, 110 Channels
dB
-63
-55
VOUT = +44 dBmV/ch
XMod
VOUT = +44 dBmV/ch
Cross Modulation, 110 Channels
dB
-63
-55
IDD
DC Current
mA
220
240
NF
Noise Figure
dB
5.3
6.2
50 MHz
dB
5.7
6.5
860 MHz
California Eastern Laboratories
MC-7856
ABSOLUTE MAXIMUM RATINGS1 (TCASE= 30 °C)
SYMBOLS
PARAMETERS
Supply Voltage
VDD
Input Voltage (Single Tone)
VI
UNITS
RATINGS
V
30
dBmV
65
TOP
Operating Temperature
°C
-30 to +100
TSTG
Storage Temperature
°C
-40 to +100
Note:
1. Operation in excess of any one of these parameters may result in
permanent damage.
TYPICAL SCATTERING PARAMETERS
j50
90˚
120˚
j100
j25
60˚
150˚
30˚
j10
0
S12
180˚
0
S22
S21
0˚
S11
-j10
-150˚
-30˚
-j100
-j25
-120˚
-j50
-60˚
S21 MAG:
3.0/DIV., 15.00 FS
S12 MAG:
0.01/DIV., 0.05 FS
-90˚
VDD = 24 V
FREQUENCY
(MHz)
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
S11
S21
MAG
ANG
0.062
0.045
0.021
0.004
0.029
0.058
0.074
0.090
0.085
0.076
0.059
0.046
0.066
0.100
0.132
0.166
0.191
0.205
0.196
0.220
0.230
-165.50
172.50
157.40
18.36
-34.03
-41.26
-50.82
-60.98
-68.92
-74.96
-68.85
-37.75
-19.04
-13.28
-23.52
-34.35
-47.19
-66.62
-76.91
-89.62
-102.30
MAG
11.74
11.89
11.94
11.97
12.06
12.08
12.10
12.15
12.23
12.34
12.45
12.55
12.60
12.63
12.76
13.03
13.43
13.78
13.63
13.48
13.34
S12
S22
ANG
MAG
ANG
MAG
ANG
-3.982
-31.570
-54.300
-75.840
-96.820
-117.700
-139.100
-159.400
179.300
158.200
136.600
114.600
92.660
70.410
48.250
25.370
1.254
-25.040
-51.960
-78.880
-108.200
0.014
0.014
0.013
0.013
0.013
0.012
0.012
0.012
0.012
0.013
0.013
0.013
0.014
0.014
0.014
0.013
0.013
0.012
0.010
0.008
0.006
-0.058
-23.830
-43.140
-62.090
-80.690
-99.360
-118.600
-138.000
-157.700
-177.100
163.600
145.800
128.900
112.700
96.990
82.490
67.470
49.570
28.770
13.240
-6.116
0.026
0.049
0.078
0.098
0.119
0.134
0.137
0.137
0.116
0.092
0.057
0.036
0.047
0.086
0.109
0.130
0.138
0.136
0.146
0.184
0.210
17.30
-31.51
-52.40
-65.99
-78.34
-87.61
-100.70
-111.90
-127.80
-147.00
-174.80
115.30
42.64
10.89
-18.20
-42.31
-70.14
-97.72
-111.30
-134.80
-154.40
EXCLUSIVE NORTH AMERICAN AGENT FOR
RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES • Headquarters • 4590 Patrick Henry Drive • Santa Clara, CA 95054-1817 • (408) 988-3500 • Telex 34-6393 • FAX (408) 988-0279
24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) • Internet: http://WWW.CEL.COM
4/98
DATA SUBJECT TO CHANGE WITHOUT NOTICE