UPC1687GV-E1 CEL [California Eastern Labs], UPC1687GV-E1 Datasheet - Page 3

• Manufacturer Part Number: UPC1687GV-E1
• Description: 900 MHz SILICON RFIC DOWN CONVERTER
• Manufacturer: CEL [California Eastern Labs]

TYPICAL PERFORMANCE CURVES
PIN DESCRIPTION
Pin
No.
1
2
3
4
5
6
7
8
50
40
20
10
30
0
Collector (Coupling)
OSC Base
OSC Base
(feedback)
1
RF Input 1
RF Input 2
IF Output
(bypass)
(bypass)
CIRCUIT CURRENT vs.
Supply Voltage, V
Name
GND
OSC
V
SUPPLY VOLTAGE
Pin
CC
2
3
CC
4
(V)
Description
Input pins for the internal oscillator which consists
of a balanced amplifier. Pin 1 should be bypassed to ground
through a capacitor. Pins 2 and 3 should be externally
equipped with a tank resonator. Note that pin 3 is an open
collector and must be supplied voltage through an external
resistor or choke coil.
Supply voltage pin. This pin should be externally equipped
with a bypass capacitor to minimize ground impedance.
IF output pin from the single-ended push-pull amplifier.
This pin is an emitter follower output with a constant
resistive impedance of 50
Ground pin. This pin must be connected to system ground.
Form ground pattern as wide as possible to minimize
ground impedance.
RF input pins. Pins 7 and 8 are each base inputs to a
double balanced mixer. Either pin can be assigned as the
input. The unused pin should be bypassed to ground
through a capacitor.
5
(T
6
A
= 25 C)
.
+20
-20
-40
0
-40
INTERMODULATION DISTORTION
-20
Input Power (RF), P
OUTPUT POWER AND
vs. INPUT POWER
Each Tone
V
REF
Inputs
Pre amp
Buffer
from IF
from
OSC
RF
V
0
V
CC
IN
CC
V
RF = 500 MHz
IF = 50 MHz
(dBm)
CC
Equivalent
Internal
= 5 V
Circuit
P
OUT
IM
3
+20
3
1
2
Output
V
5
IF
CC
to OSC
Buffer
Amp
to IF
Amp