UPC2721GV(2001) 查看數據表（PDF） - NEC => Renesas Technology
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UPC2721GV Datasheet PDF : 5 Pages
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TYPICAL PERFORMANCE CURVES (TA = 25°C)
+10
0
-10
-20
-30
-40
-50
-60
-40
IM3 AND OUTPUT POWER
vs. INPUT POWER
Pout
IM3
fRF1 = 900 MHZ
fRF2 = 938 MHZ
fLO = 1.3 GHZ (0 dBm)
fRF1 = 2.0 GHZ
fRF2 = 2.038 GHZ
fLO = 2.4 GHZ (0 dBm)
-30
-20
-10
0
Input Power, PIN (dBm)
UPC2721GV
OSC FREQUENCY STABILITY
vs. OSC FREQUENCY
+6.0
+4.0
VCC = 4.5 V
VCC = 5.5 V
+2.0
0
VCC = 5.5 V
-2.0
VCC = 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
Oscillation Frequency, fOSC (GHz)
PIN DESCRIPTIONS
PIN
SYMBOL
PIN VOLT
NO.
TYP (V)
1
OSC
2.9
base
(bypass)
2
OSC
2.9
base
(feedback)
3
OSC
5.0
collector
(coupling)
4
VCC
5.0
5
IF Output
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.
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.
EQUIVALENT CIRCUIT
2
3
1
Vcc
40 Ω
5
6
GND
0.0
GND pin for the IC.
7
RF input2
2.4
(bypass)
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
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