SILICON MMIC UHF/VHF
DUAL DOWNCONVERTER
FEATURES
• UHF AND VHF DOWNCONVERTERS ON A SINGLE IC
• HIGH CONVERSION GAIN:
31 dB (UPC2744GS)
23 dB (UPC2743GS)
• LOW DISTORTION:
UPC2743GS
• TYPICAL SATURATED OUTPUT POWER:
+13 dBm
• 9 V SINGLE SUPPLY
• SMALL PACKAGE: 20 PIN SOP
Suitable for Surface Mount
• TAPE AND REEL PACKAGING OPTION AVAILABLE
5
3
1
UPC2743GS
UPC2744GS
INTERNAL BLOCK DIAGRAM
20
2
19
UHF OSC
18
4
17
16
DESCRIPTION
The UPC2743GS and UPC2744GS are Silicon Monolithic
Integrated Circuits designed using the NESAT II MMIC pro-
cess. These products consist of UHF and VHF double bal-
anced mixers and local oscillators, an IF amplifier, an oscillator
output buffer amplifier and a UHF/VHF switching circuit.
These devices are ideal for TV and VCR tuners.
NEC's stringent quality assurance and test procedures en-
sure the highest reliability and performance.
6
15
7
14
8
VHF OSC
13
9
12
REG.
10
11
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
= 9 V, f
IF
= 45 MHz)
PART NUMBER
PACKAGE OUTLINE
UPC2743GS
G20
VHF
1
CIRCUIT
SYMBOLS
I
CC
CG
3
PARAMETERS AND CONDITIONS
Circuit Current (no signal)
Conversion Gain (P
RF
= -30 dBm)
f
RF
= 55 MHz
f
RF
= 200 MHz
f
RF
= 470 MHz
f
RF
= 890 MHz
Conversion Gain (P
RF
= -30 dBm)
f
RF
= 55 MHz
f
RF
= 360 MHz
f
RF
= 400 MHz
f
RF
= 800 MHz
Saturated Output Power (P
RF
= 0 dBm)
f
RF
= 55 MHz
f
RF
= 200 MHz
f
RF
= 470 MHz
f
RF
= 890 MHz
UNITS MIN
mA
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
10
10
10
37
16.5
16.5
16.5
TYP MAX
47
20
20
20
57
23.5
23.5
23.5
MIN
39
UHF
2
CIRCUIT
TYP MAX
49
59
MIN
37
21.5
21.5
21.5
UPC2744GS
G20
VHF
1
CIRCUIT
TYP MAX
47
25
25
25
57
28.5
28.5
28.5
MIN
39
UHF
2
CIRCUIT
TYP MAX
49
59
19.5
19.5
23
23
26.5
26.5
27.5
27.5
31
31
34.5
34.5
CG
4
22
22.5
27
26.5
13
13
13
10
10
10
27.5
28
35.5
35
13
13
13
P
SAT3
10
10
13
13
10
10
13
13
Notes:
1. Mode Select (Pin 5) = open.
2. Mode Select (Pin 5) = 9 V.
3. Measured with external LO, P
LO
= -5 dBm.
4. Measured with internal LO
California Eastern Laboratories
UPC2743GS, UPC2744GS
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
= 9 V, f
IF
= 45 MHz)
PART NUMBER
PACKAGE OUTLINE
UPC2743GS
G20
VHF
1
CIRCUIT
SYMBOLS
P
OSC4
PARAMETERS AND CONDITIONS
Power at OSC Output (Pin 6)
f
LO
= 100 to 900 MHz
f
LO
= 100 MHz
f
LO
= 405 MHz
f
LO
= 445 MHz
f
LO
= 845 MHz
Noise Figure
f
RF
= 55 MHz
f
RF
= 200 MHz
f
RF
= 470 MHz
f
RF
= 890 MHz
f
RF
= 55 MHz
f
RF
= 360 MHz
f
RF
= 400 MHz
f
RF
= 800 MHz
f
des
= 55 MHz
f
des
= 360 MHz
f
des
= 400 MHz
f
des
= 800 MHz
UNITS MIN
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dBµ
dBµ
dBµ
dBµ
dBc
-20
-4
-5
-9
-13
13
13
13
12.3
13.4
11.0
12.7
97
94
92
90
57.5
53.5
92
90
82
80
16
16
16
TYP MAX
0
MIN
-20
-4
-5
-9
-13
UHF
2
CIRCUIT
TYP MAX
0
MIN
-20
-4
-5
-9
-13
11
11
11
9.2
9.4
8.3
10.0
14
14
14
UPC2744GS
G20
VHF
1
CIRCUIT
TYP MAX
0
MIN
-20
-4
-5
-9
-13
UHF
2
CIRCUIT
TYP MAX
0
NF
3
12
12
15
15
10
10
13
13
NF
4
Noise Figure
CM
5
1% Cross Modulation
S/I
6
Six Channel Beat
Notes:
1. Mode Select (Pin 5) = open.
2. Mode Select (Pin 5) = 9 V.
3. Measured with external LO, P
LO
= -5 dBm.
4. Measured with internal LO.
5. f
UNDESIRED
= f
DESIRED
+12 MHz, P
IN
= -30 dBm, AM 100 KHz, 30% modulation, S/I ratio = 46 dBc, open output terminal.
6. f
P
= 83.25 MHz, fs = 87.75, P
IN
= -30 dBm each, f
LO
= 129 MHz.
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25°C)
SYMBOLS
V
CC
P
T
T
OP
T
STG
PARAMETERS
Supply Voltage
Total Power Dissipation
2
Operating Temperature
Storage Temperature
UNITS
V
mW
°C
°C
RATINGS
11.0
750
-20 to +75
-55 to +150
TEST CIRCUIT - EXTERNAL OSCILLATOR
1000 pF
1
20
1000 pF
UHF RF IN
UHF OSC IN
1000 pF
2
19
1000 pF
1000 pF
3
18
Notes:
1. Operation in excess of any one of these parameters may result in
permanent damage.
2. Mounted on a 50 x 50 x 1.6 mm epoxy glass PWB (T
A
= +75°C).
1000 pF
4
17
1000 pF
VHF RF IN
MODE SELECT
5
16
1000 pF
1000 pF
1000 pF
6
15
NC
RECOMMENDED
OPERATING CONDITIONS
SYMBOLS
V
CC
PARAMETERS
Supply Voltage
UNITS
V
MIN
8.0
TYP MAX
9.0
10.0
7
14
NC
1000 pF
8
13
V
CC
1000 pF
1000 pF
IF OUT
VHF OSC IN
1000 pF
9
12
1000 pF
10
11
1000 pF
MODE
VHF
UHF
V
CC
9V
9V
MODE
SELECT
Open
9V
UPC2743GS, UPC2744GS
OUTLINE DIMENSIONS
1
(Units in mm)
PACKAGE OUTLINE
2
G20
20
11
LEAD CONNECTIONS
(Top View)
1
2
3
4
5
20
19
18
17
16
15
14
13
12
11
JAPAN
N
NEC
C2743GS
XXXXX
10
7.7±0.3
5.6
1.1
1
6
7
8
13.00 MAX
1.55
1.8 MAX
0.1 ±0.1
+0.10
0.40
- 0.05
0.20
- 0.05
1.27
0.78 MAX
0.6±0.2
+0.10
9
10
1. UHF OSC COLLECTOR
(Tr. 1)
2. UHF OSC BASE (Tr. 2)
3. UHF OSC BASE (Tr. 1)
4. UHF OSC COLLECTOR
(Tr. 2)
5. MODE SELECT
6. OSC OUTPUT
7. GND
8. VHF OSC BASE (BYPASS)
9. VHF OSC BASE
10. VHF OSC COLLECTOR
11. REGULATOR BYPASS
12. IF OUTPUT
13. V
CC
14. MIXER OUTPUT 1
15. MIXER OUTPUT 2
16. VHF RF INPUT 1
17. VHF RF INPUT 2
18. GND
19. UHF RF INPUT 1
20. UHF RF INPUT 2
ORDERING INFORMATION
Notes:
1. All dimensions are typical unless otherwise specified.
2. Package will be marked 2743 or 2744 as shown. "XXXXX" is date/
lot code.
PART NUMBER
UPC2743GS-E1
UPC2744GS-E1
QTY
2500 per Reel
2500 per Reel
Note:
Embossed Tape, 24 mm wide,
Pins 1-10 are in tape pull-out direction.
TEST CIRCUIT - INTERNAL OSCILLATOR
V
TUNE
I
T
363
3T
3T
47K
47K
300p
12p
300p
1p
2
12p
3
1p
4
MODE SELECT
OSC OUT
1000p
7
10p
8
47K
5T
1000p
0.1µ
2.7 K
1SS317
1000p
1000p
3T
VHF OSC
1000p
1
UHF OSC
20
19
1000p
18
1000p
17
1000p
16
15
6p
14
13
1000p
12
1000p
11
1000p
REG
UHF IN
VHF IN
1000p
5
6
1.2
µH
V
CC
(9V)
IF OUT
200p
IT363
3p
9
10
47K
IT363
VHF BAND
0.1µ
LB
47K
HB V
TUNE
LB
9V
OPEN
HB
OPEN
9V
MODE
VHF
UHF
V
CC
9V
9V
MODE
SELECT
OPEN
9V
VHF LOW BAND
VHF HIGH BAND
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
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PRINTED IN USA ON RECYCLED PAPER -11/97
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