HIGH ISOLATION
SILICON MMIC IF AMPLIFIER
FEATURES
鈥?HIGH ISOLATION
鈥?LOW INPUT/OUTPUT RETURN LOSS
鈥?LOW INTERMODULATION DISTORTION
Gain, G
S
(dB)
20
GAIN
30
V
CC
= 12V
V
CC
= 10 V
V
CC
= 8 V
UPC1668C
UPC1668C
ISOLATION AND GAIN
vs. FREQUENCY
-30
(ISO)
-40
10
-50
DESCRIPTION
The UPC1668C is a bipolar analog integrated circuit which
functions as a high isolation IF amplifier. The device has been
specifically designed as an IF amplifier for video communica-
tions. The device is available in a plastic DIP package.
NEC's stringent quality assurance and test procedures en-
sure the highest reliability and performance.
0
10
50
100
500
1000
-60
Frequency, f (MHz)
ELECTRICAL CHARACTERISTICS
(T
A
= 25擄C, Z
O
= 75
鈩?
V
CC
= 10 V, f = 70 MHz)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
I
CC
G
S
P
1dB
NF
RL
IN
RL
OUT
ISOL
IM
3
f
OP
PARAMETERS AND CONDITIONS
Circuit Current
Small Signal Gain
Output Power at 1 dB Gain Compression
Noise Figure
Input Return Loss
Output Return Loss
Isolation
3rd Order Intermodulation, P
O1
= P
O2
= 0 dBm
Operating Frequency
UNITS
mA
dB
dBm
dB
dB
dB
dB
dBc
MHz
10
16
20
45
MIN
35
12.5
UPC1668C
C08
TYP
48
14.5
13
6.5
26
30
55
50
150
MAX
60
16.0
California Eastern Laboratories
Isolation, (dB)