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PDF UPC2781GR Data sheet ( Hoja de datos )
| Número de pieza | UPC2781GR | |
| Descripción | SI MMIC IQ DEMODULATOR | |
| Fabricantes | NEC | |
| Logotipo |  |
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SI MMIC IQ DEMODULATOR UPC2781GR
FEATURES
• RF BANDWIDTH:
440 - 520 MHz
• IF BANDWIDTH:
0.3 - 20 MHz
• ON CHIP 90˚ PHASE SHIFTER
• IQ PHASE AND AMPLITUDE BALANCE
Amplitude Balance: ± 0.5 dB
Phase Balance: ± 2.0 degree
• LOW IM3 DISTORTION:
35 dBc Typical
• SMALL 20 PIN SSOP PACKAGE
• TAPE AND REEL PACKAGE AVAILABLE
DESCRIPTION
The UPC2781GR is a Silicon MMIC IQ demodulator manu-
factured with the NESAT III™ silicon bipolar process. The IC
consists of an AGC amplifier, double balanced mixers, oscil-
lator, 90˚ phase shifter, and I&Q output buffer amps. The
device was specifically designed for DBS receivers and other
www.DataSheet4U.codmigital communication systems.
INTERNAL BLOCK DIAGRAM
GND(IQ) 1
VCC(IF-I) 2
VAGC 3
GND(RF) 4
RF IN 5
RF IN 6
GND(IQ) 7
VCC(RF) 8
AGC
AMP.
VCC(IF-Q) 9
VCC(PS) 10
90 deg
phase
shifter
20 I OUT
19 I OUT
18 OSC OUT
17 OSC-B2
16 OSC-C1
15 OSC-C2
14 OSC-B1
13 GND(PS)
12 Q OUT
11 Q OUT
NEC's stringent quality assurance and test procedures en-
sure the highest reliability and performance.
ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5 V, ZL = 1k Ω)
SYMBOLS
ICC
fRF
fIF
PART NUMBER
PACKAGE OUTLINE
PARAMETERS AND CONDITIONS
Supply Current (no input signal)
RF Input Bandwidth (fIF = 10 MHz, fRF > fLO, IQ Phase Balance < ± 1.5˚)
IF Output Bandwidth
(fRF = 480 MHz, PLO = -10 dBm, fRF > fLO, VAGC = 0 V)
UNITS
mA
MHz
MHz
UPC2781GR
S20 (SSOP 20)
MIN TYP MAX
52 70
88
440 480
520
0.3 20
CG Conversion Gain (fRF = 480 MHZ, fIF = 10 MHZ, VAGC = 0 V)
dB
50
NF
Noise Figure (fRF = 480 MHZ, fIF = 10 MHZ, PLO = -10 dBm, VAGC = 0 V)
dB
18
IM3 3rd Order Intermodulation Distortion
(fRF1 = 480 MHz, fRF2 = 481 MHz, fLO = 470 MHz, PLO = -10 dBm)
dBc
35
∆Φ IQ Phase Balance
(fRF = 480 MHZ, fIF = 10 MHZ, PRF = -30 dBm, PLO = -10 dBm)
deg -2
+2
∆G IQ Amplitude Balance
dB
(fRF = 480 MHz, fIF = 10 MHZ, PRF = -30 dBm, PLO = -10 dBm, VAGC = 0 V)
-0.5
+0.5
GAGC
AGC Control Range
dB 15 20
(fRF = 480MHZ, PRF = -30dBm, fIF = 10MHZ, PLO = -10dBm, 0 ≤ VAGC ≤ 5 V)
LO-RF
LO to RF Isolation
(fLO = 470 MHZ, PLO = -10 dBm, PRF = -30 dBm, VAGC = 0 V)
dB
30
LO-IF
LO to IF Isolation
(fLO = 470 MHZ, PLO = -10 dBm, PRF = -30 dBm, VAGC = 0 V)
dB
20
PO (SAT)
VO
Maximum Output Power (fRF = 480 MHz, fIF = 10 MHZ, PRF = -10 dBm)
Output Voltage (fRF = 480 MHZ, fIF = 10 MHZ, PLO = -10 dBm, ZL = 1k Ω)
dBm
0
VP-P
1.0
California Eastern Laboratories
1 page  
APPLICATION CIRCUIT
0.1µF
VCC
VAGC
RF IN
1
2
3
4
5
1000pF
6
7
AGC
AMP.
8
9
10
90 deg
phase
shifter
UPC2781GR
1000pF
20
1000pF
19
1000pF
18
2pF
17
16
84nH
15
14
2pF
13
12
1000pF
11
1000pF
I OUT
I OUT
4-11pF
or SAW
Resonator
Q OUT
Q OUT
OUTLINE DIMENSIONS (Units in mm)
PACKAGE OUTLINE SSOP 20
20 11
N
1
7.00 MAX
1.5 ±0.1
1.8 MAX
+0.10
0.22 - 0.05
0.65
Lead Material: Alloy 42
Lead Plating: Lead Tin Alloy
10
+0.10
0.15- 0.05
6.4±0.2
4.4±0.1
1.0±0.1
0.575 MAX
0.5±0.2
ORDERING INFORMATION
PART NUMBER
UPC2781GR-E1
QUANTITY
2500/Reel
Note:
Embossed Tape, 12 mm wide.
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
DATA SUBJECT TO CHANGE WITHOUT NOTICE
PRINTED IN USA ON RECYCLED PAPER -6/97
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet UPC2781GR.PDF ] | |
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