3V, 450 MHz SILICON MMIC
FREQUENCY CONVERTER
UPC2768GR
INTERNAL BLOCK DIAGRAM
FEATURES
•
•
•
•
•
•
LOW POWER DISSIPATION
VCC = 3 V, Icc = 7 mA
HIGH CONVERSION GAIN
80 dB
20
1
2
3
4
5
6
7
GND
GND
GND
19 GND
18 LO
/VCO
/VCO
VENABLE
CC (D/C)
CC (IF)
ON CHIP OSCILLATOR OR LO BUFFER:
DC - 450 MHz
OUTPUT LIMITING
450 mVp-p
RF INPUT
RF BYPASS
MIXER IF OUT
IF BYPASS
IF INPUT
1
1
BROADBAND OPERATION
DC - 450 MHz
17
16
LO
2
2
P
/
POWER SAVE FUNCTION
ICC (ps) = <100 µA
S
15
14
V
DESCRIPTION
V
TheUPC2768GRisafrequencyconvertermanufacturedwith
the NESAT III process. This product consists of an RF input
amplifier, Gilbert cell mixer, Local Oscillator or LO buffer, IF
amplifier, external filter port, and IF output limiting amplifier.
The on-chip local oscillator only requires an external tank
circuit. The power save feature enables users to minimize
overall current consumption when dormant. This device was
specifically designed for low-cost second IF receivers, key-
less entry applications, security systems, GPS, and other low
power Part 15 mobile radios.
8
9
13
BYPASS
IF OUPUT
12
11
N/C
N/C
10
GND
GND
ELECTRICAL CHARACTERISTICS (VCC = 3.0 V, TA = 25°C, ZL = ZS = 50 Ω, VENABLE 2.5 V unless otherwise specified)
PART NUMBER
UPC2768GR
PACKAGE OUTLINE
S20 (SSOP 20)
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
ICC
Circuit Current (VENABLE ≥ 2.5 V)4
mA
7
(VENABLE ≤ 0.5 V)
µA
100
450
40
fRF,fLO
CG
RF and LO Input Frequency Range (3 dB BW)1, fIF = 10 MHz
Conversion Gain2, fRF = 433 MHz, fIF = 25 MHz
Noise Figure2, fRF = 450 MHz, fIF = 10 MHz
LO to RF Leakage3, fLO = 1 to 450 MHz
MHz
dB
DC
33
36
12
NF
dB
Leak LO-RF
Leak LO-IF
GS
dBm
dBm
-62
-25
LO to IF Leakage3, fLO = 1 to 450 MHz
IF Amplifier Small Signal Gain fIF = 10.7 MHz
fIF = 25.0 MHz
dB
dB
40
38
44
42
47
45
VOUT
PSAT
Limiting Output Voltage, ZL = 2KΩ, fIF = 10 MHz
mVp-p
dBm
450
-20
Saturated Output Power
Notes:
1. Max freq. range is -3 dB from conversion gain for RF = 50 MHz
2. Down converter only (RFIN to mixer IFOUT).
3. PLO = -10 dBm external, or using internal LO.
4. Down converter and IF amp may be operated separately.
Typical ICC for down converter is 5.5 mA (pin 15). Typical ICC
for IF amp is 1.4 mA (pin 14).
California Eastern Laboratories