The UPC2721GV is a L-Band frequency converter manufac-
tured using the NESAT III MMIC process. This product con-
sists of a double balanced mixer, local oscillator, IF preampli-
fier, and constant voltage generator. It is available in a 8 pin
SSOP package. This device is designed for low cost cellular
radios, GPS receivers, PCS, and UHF TV tuner applications.
The UPC2721 output amplifier is a single-end push-pull ampli-
fier designed for operation into a 50
Ω
load.
NEC's stringent quality assurance and test procedures ensure
the highest reliability and performance.
OSC collector
(coupling)
3
6
GND
IF
AMP
V
CC
4
REG.
MIX
5
IF
OUT
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
= 5 V, P
LO
= -10 dBm)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
I
CC
f
RF
f
IF
CG
PARAMETERS AND CONDITIONS
Circuit Current
RF Frequency Range
IF Frequency Range
Conversion Gain
2
f
RF
= 900 to 2000MHz,f
IF
= 50 to 400 MHz
f
IF
= 400 to 400 MHz
Saturated Output Power
2
f
RF
= 800 to 2000 MHz, f
IF
= 400 MHz
Noise Figuref
RF
= 900 MHz, f
IF
= 400 MHz,
f
RF
= 2.0 GHz, f
IF
= 400 MHz
SSB Third Order Intercept Point, f
1
= 900 MHz, f
2
= 938 MHz
f
1
= 2.0 GHz, f
2
= 2.038 GHz
UNITS
mA
GHz
MHz
dB
dB
dB
dBm
dBm
dB
dB
dBm
dBm
UPC2721GV
S08
MIN
29
0.9
50
18
21
22
19.5
7
7
9
11
+10
+8.5
13
15
TYP
38
MAX
45.5
2.0
600
24
P
SAT
NF
IP
3
2
Notes:
1. Mounted on a 50 x 50 x 1.6 mm thick glass epoxy board with double sided copper.
2. Minimum and maximum specifications for CG and P
SAT
are measured at f
RF
= 900 MHz and 2.0 GHz and at f
IF
= 402.8 MHz.
California Eastern Laboratories
UPC2721GV
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25°C)
SYMBOLS
V
CC2
P
T3
T
OP
T
STG
PARAMETERS
Supply Voltage
Power Dissipation
3
Operating Temperature
Storage Temperature
UNITS
V
mW
°C
°C
RATINGS
6
250
-40 to +85
-65 to +150
Notes:
1. Operation in excess of any one of these parameters may result
in permanent damage.
2. Recommended operating V
CC
range is 4.5 to 5.5 V MAX.
3. T
A
= +85°C mounted on a 50 x 50 x 1.6 mm thick glass epoxy
board with double sided copper.
TYPICAL PERFORMANCE CURVES
(T
A
= 25°C)
CIRCUIT CURRENT VS.
SUPPLY VOLTAGE
60
No Input Signal
+10
f
RF
= 2 GHz
f
RF
= 900 MHz
OUTPUT POWER VS.
INPUT POWER
40
Output Power, P
OUT
(dBm)
Circuit Current, I
CC
(mA)
50
+5
0
30
-5
20
-10
10
-15
V
CC
= 5 V
f
IF
= 402 MHz
0
1
2
3
4
5
6
-20
-40
-30
-20
-10
0
+10
+20
Supply Voltage, V
CC
(V)
Input Power, P
IN
(dBm)
CONVERSION GAIN AND NOISE FIGURE
vs. RF FREQUENCY
30
30
V
CC
= 5 V
P
RF
= -30 dBm
P
LO
= -5 dBm
f
IF
= 402 MHZ
CG
20
UPC2721
CONVERSION GAIN
vs. IF FREQUENCY
Noise Figure, NF (dB)
Conversion Gain, CG (dB)
Conversion Gain, CG (dB)
25
25
f
RF
= 2.0 GHz
20
f
RF
= 900 MHZ
15
15
10
NF
5
10
5
0
0.5
1.0
1.5
2.0
2.5
3.0
0
V
CC
= 5 V
P
LO
= 0 dBm
P
RF
= -30 dBm
100
200
300
400
500
600
Input Frequency, f
RF
(GHz)
IF Frequency, f
IF
(MHz)
UPC2721GV
TYPICAL PERFORMANCE CURVES
(T
A
= 25°C)
IM
3
AND OUTPUT POWER
vs. INPUT POWER
OSC FREQUENCY STABILITY
vs. OSC FREQUENCY
Output Power, P
OUT
(dBm)
3rd Order Intermodulation Distortion, IM
3
(dBm)
Oscillation Frequency Stability, f
STB
(MHz)
+10
+6.0
0
-10
-20
-30
-40
-50
Pout
V
CC
= 4.5 V
+4.0
V
CC
= 5.5 V
+2.0
IM
3
0
V
CC
= 5.5 V
-2.0
-60
f
RF1
= 900 MH
Z
f
RF2
= 938 MH
Z
f
LO
= 1.3 GH
Z (0 dBm)
f
RF1
= 2.0 GH
Z
f
RF2
= 2.038 GH
Z
f
LO
= 2.4 GH
Z (0 dBm)
-40
-30
-20
-10
0
V
CC
= 4.5 V
-4.0
-6.0
-1.4
-1.5
-1.6
-1.7
-1.8
-1.9
-2.0
-2.1
-2.2
Input Power, P
IN
(dBm)
Oscillation Frequency, f
OSC
(GHz)
PIN DESCRIPTIONS
PIN
NO.
1
SYMBOL
OSC
base
(bypass)
PIN VOLT
TYP (V)
2.9
DESCRIPTION
Internal oscillator consists of a
balance amplifier. Pin 2 and pin 3
should be externally equipped with a
tank resonator circuit in order to
oscillate with feedback loop.
Pin 1 should be grounded through
coupling capacitor ~0.5 pF.
EQUIVALENT CIRCUIT
2
Vcc
3
1
2
OSC
base
(feedback)
2.9
3
OSC
collector
(coupling)
V
CC
IF Output
5.0
Pin 3 is an open collector. This pin should
be coupled through resistor or choke coil
in order to adjust Q and connect the
supply voltage.
Supply voltage pin for the IC.
The amplifier is designed as single-ended
push-pull amplifier. This pin is an emitter
follower output with a wideband 50
Ω
impedance.
4
5
5.0
2.9
40
Ω
5
6
7
GND
RF input2
(bypass)
0.0
2.4
GND pin for the IC.
Pin 7 and pin 8 are inputs to a double-
balanced mixer. Either pin can be
assigned for input or ground.
8
RF input1
2.4
7
8
UPC2721GV
TEST CIRCUITS
100 pF
1
0.5 pF
8
RF IN
LO IN
100 pF
10
Ω
2
7
2 pF
20 pF
3
100
Ω
4
100 pF
20 pF
6
1000 pF
5
1.8
µH
IF OUT
5.0 V
APPLICATION CIRCUIT
V
TUNE
1000 pF
51k
100 pF
ALPHA
SMV1204-04
1
3.3nH
1pF
2
1pF
1pF
3
47
4
5
1.8
µH
18nH
6
1000 pF
IF OUT
7
2 pF
20 pF
8
RF IN
10pF
20pF
5.0 V
UPC2721GV
OUTLINE DIMENSIONS
(Units in mm)
UPC2721GV
PACKAGE OUTLINE S08
8
7
6
5
N
2721
XXX
2
3
3.0 MAX
4
+0.10
0.15 -0.05
Detail of Lead End
1
3
-3˚
+7˚
4.94
±
0.2
3.2±0.1
0.87±0.2
1.5±0.1
1.8 MAX
0.1
±
0.1
0.65
+0.10
0.3 -0.05
0.5
±
0.2
0.575 MAX
LEAD CONNECTIONS
1.
2.
3.
4.
5.
6.
7.
8.
OSC-Base (Bypass)
OSC-Base (Feed back)
OSC-Collector (Coupling)
V
CC
IF OUT
GND
RF
IN2
RF
IN1
Notes: Package will be marked as 2721 as shown.
All dimensions are typical unless otherwise specified.
Lead Material: Alloy 42
Lead Plating: Lead tin alloy
ORDERING INFORMATION
PART NUMBER
UPC2721GV-E1
QTY
1000/Reel
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.
EXCLUSIVE NORTH AMERICAN AGENT FOR
NEC
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
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