鈥?/div>
POWER SAVE FUNCTION
I
CC
(ps) = <100
碌A(chǔ)
DESCRIPTION
The UPC2768GR is a frequency converter manufactured with
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.
IF INPUT
BYPASS
N/C
GND
11 GND
ELECTRICAL CHARACTERISTICS
(V
CC
= 3.0 V, T
A
= 25擄C, Z
L
= Z
S
= 50
鈩?
V
ENABLE
鈯?/div>
2.5 V unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
I
CC
Down Converter
f
RF
,f
LO
CG
NF
Leak
LO-RF
Leak
LO-IF
G
S
V
OUT
P
SAT
PARAMETERS AND CONDITIONS
Circuit Current (V
ENABLE
鈮?/div>
2.5 V)
4
(V
ENABLE
鈮?/div>
0.5 V)
RF and LO Input Frequency Range (3 dB BW)
1
, f
IF
= 10 MHz
Conversion Gain
2
, f
RF
= 433 MHz, f
IF
= 25 MHz
Noise Figure
2
, f
RF
= 450 MHz, f
IF
= 10 MHz
LO to RF
Leakage
3
, f
LO
= 1 to 450 MHz
LO to IF Leakage
3
, f
LO
= 1 to 450 MHz
IF Amplifier Small Signal Gain f
IF
= 10.7 MHz
f
IF
= 25.0 MHz
Limiting Output Voltage, Z
L
= 2K鈩? f
IF
= 10 MHz
Saturated Output Power
UNITS
mA
碌A(chǔ)
MHz
dB
dB
dBm
dBm
dB
dB
mVp-p
dBm
40
38
DC
33
36
12
-62
-25
44
42
450
-20
47
45
MIN
UPC2768GR
S20 (SSOP 20)
TYP
7
100
450
40
MAX
IF Amplifier
Notes:
1. Max freq. range is -3 dB from conversion gain for R
F
= 50 MHz
2. Down converter only (RF
IN
to mixer IF
OUT
).
3. P
LO
= -10 dBm external, or using internal LO.
4. Down converter and IF amp may be operated separately.
Typical I
CC
for down converter is 5.5 mA (pin 15). Typical I
CC
for IF amp is 1.4 mA (pin 14).
California Eastern Laboratories
NEC
1
2
3
4
