CEL UPC1687GV-E1

900 MHz SILICON
UPC1687GV
RFIC DOWN CONVERTER
BLOCK DIAGRAM
FEATURES
• WIDE-BAND OPERATION: DC to 900 MHz
• SMALL PACKAGE
8
7
6
5
• DOUBLE BALANCED MIXER:
Low Distortion
Low Oscillator Radiation
IF Main
Amp.
• BALANCED AMPLIFIER FOR VOLTAGE
CONTROLLED OSCILLATORS:
Up to UHF Frequency
IF Pre
Amp.
• SINGLE ENDED PUSH-PULL IF AMPLIFIER:
Constant Resistive Impedance
• SWITCHABLE AS MIXER OR IF AMP
OSC
Buffer
OSC
MIX
REG.
DESCRIPTION
1
2
3
4
The UPC1687GV is a silicon RFIC designed as a wide-band
mixer/oscillator/IF amp suitable for UHF TV tuners. Device
features include: 25 dB gain from 55 to 900 MHz and an output
power of +10 dBm at the saturation point. The IC is housed in
an 8 pin SSOP package.
ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5 V)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
PARAMETERS AND CONDITIONS
UPC1687GV
S08
TEST
UNITS
MIN
TYP
MAX
CIRCUIT
ICC
Circuit Current, no input signal
mA
25
38
48
Fig. 1
CG
Conversion Gain (RF Input Terminal is not tuned) at
IF = 50 MHz, PRF = -40 dBm, POSC = -5 dBm
RF = 500 MHz
RF = 900 MHz
dB
dB
22
20
26
24
29
27
Fig. 1
Fig. 1
Noise Figure at IF = 50 MHz, POSC = -5 dBm
RF = 500 MHz
RF = 900 MHz
dB
dB
—
—
9
10
12
13
Fig. 1
Fig. 1
1% Cross Modulation Distortion1
RF = 500 MHz
RF = 900 MHz
dBµ
dBµ
—
—
88
89
—
—
Fig. 1
Fig. 1
PSAT
Output Power (Saturation Point)
dBm
—
+10
—
Fig. 1
fSTB
Oscillator Frequency Stability at VCC ± 10%
OSC f = 550 to 950 MHz
kHz
—
±200
—
Fig. 2
VOSC
VCC at OSC Start
OSC f = 550 to 950 MHz
—
3.0
—
Fig. 2
—
—
1.5
Fig. 1
NF
CM
VSWR
IF Output
V
Note:
1. Undesired = Desired ± 12 MHz, 100 kHz, 30% AM Mod, S/I Ratio = 46 dBc.
California Eastern Laboratories
UPC1687GV
ABSOLUTE MAXIMUM RATINGS1 (TA = 25°C)
SYMBOLS
PARAMETERS
Supply Voltage
VCC
Dissipation2
UNITS
RATINGS
V
6
PT
Total Power
mW
250
TOP
Operating Temperature
°C
-40 to +85
TSTG
Storage Temperature
°C
-65 to +150
Notes:
1. Operation in excess of any one of these parameters may result in
permanent damage.
2. TA = 85°C mounted on 50 x 50 x 1.6 (mm) PWB (glass-epoxy).
ELECTRICAL CHARACTERISTICS (TA = 25°C)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
Gs
PARAMETERS AND CONDITIONS
Small Signal Gain of IF amplifier at f = 50 MHz
UPC1687GV
S08
TEST
UNITS
dB
TYP
29
CIRCUIT
Fig. 3
NF
Noise Figure of IF amplifier at f = 50 MHz
dB
7
Fig. 3
CM
1% Cross Modulation of IF amplifier
(100 kHz, 30% AM Mod, S/I Ratio = 46 dBc)
Desired = 50 MHz
Undesired = 62 MHz
dBµ
87
Fig. 3
TYPICAL PERFORMANCE CURVES (TA = 25°C)
CONVERSION GAIN vs. FREQUENCY
(RF Input Tuned)
CONVERSION GAIN AND NOISE FIGURE vs.
FREQUENCY (RF Input Not Tuned)
16
14
20
12
15
10
NF
8
10
5
6
Conditions; Vcc = 5 V, PRF = -40 dBm
IF = 50 MHz
0
500
1000
30
Conversion Gain, CG (dB)
25
Noise Figure, NF (dB)
Conversion Gain, CG (dB)
CG
25
20
15
10
Vcc = 5 V,
PRF = -40 dBm,
fIF = 50 MHz
5
55
1200
RF Input Frequency, fRF (MHz)
200
500
900
RF Input Frequency, fRF (MHz)
1% CROSS MODULATION
vs. FREQUENCY
OSC-FREQUENCY STABILITY
vs. FREQUENCY
100
+300
90
OSC Stability, f (kHz)
1% Cross Modulation, CM (dB)
VCC = 5 V
80
Conditions; Vcc = 5 V
IF = 50 MHz
Undesired Signal;
Desired Signal ± 12 MHz
100 kHz 30% AM Mod
S/I Ratio = 46 dBc
Measured 75 ohm open terminal
70
60
-10%
0
+10%
-300
0
500
1000
Frequency (RF Input), f (MHz)
1200
0
500
1000
Frequency (OSC), f (MHz)
1200
UPC1687GV
TYPICAL PERFORMANCE CURVES (TA = 25°C)
OUTPUT POWER AND
INTERMODULATION DISTORTION
vs. INPUT POWER
Output Power (IF), POUT (dBm)
CIRCUIT CURRENT vs.
SUPPLY VOLTAGE
Circuit Current, ICC (mA)
50
40
30
20
10
+20
POUT
0
IM 3
-20
VCC = 5 V
RF = 500 MHz
IF = 50 MHz
-40
0
1
2
3
4
5
6
Supply Voltage, VCC (V)
-40
-20
0
+20
Input Power (RF), PIN (dBm)
Each Tone
PIN DESCRIPTION
Pin
No.
Pin
Name
1
OSC Base
(bypass)
2
OSC Base
(feedback)
3
OSC
Collector (Coupling)
4
VCC
5
IF Output
Internal
Equivalent
Circuit
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.
VCC
3
1 2
to OSC
Buffer
Amp
VREF
Supply voltage pin. This pin should be externally equipped
with a bypass capacitor to minimize ground impedance.
VCC
IF output pin from the single-ended push-pull amplifier.
This pin is an emitter follower output with a constant
resistive impedance of 50 Ω.
from IF
Pre amp
5
IF
Output
6
GND
Ground pin. This pin must be connected to system ground.
Form ground pattern as wide as possible to minimize
ground impedance.
VCC
7
8
RF Input 1
(bypass)
RF Input 2
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.
to IF
Amp
from
OSC
Buffer
RF
Inputs
UPC1687GV
TEST CIRCUITS
Figure 1
47 Ω
150 nH
OSC Input
5 pF 1000 pF
VCC
1000 pF
4
3
5
6
1000 pF
2
1
7
8
4 pF
IF Output
RF Input
1000 pF
1000 pF
Figure 2
47 KΩ
ZO = 200 ohms
47 Ω 150 µH
VCC
4 pF 10 pF
4 pF
1SV164
BT (0. to 29V)
= 20 mm
0.5 pF
5 pF
1000 pF
4
3
5
6
1000 pF
2
1
7
8
4 pF
IF Output
330 pF
RF Input
1000 pF
Figure 3
VCC
5 pF
1000 pF
1000 pF
IF Output
4
3
5
6
2
1
7
8
4 pF
IF Input
1000 pF
1000 pF
UPC1687GV
APPLICATION BLOCK DIAGRAM FOR T.V. TUNER
U-OSC
RES.
UPC1687
RF Amp
B.P.F.
B.P.F.
U-MIX
U-OSC
UHF RF Input
IF
AMP
V-OSC
RES.
RF Amp
B.P.F.
B.P.F.
V-MIX
V-OSC
VHF RF Input
IF
AMP
UPC1686
IF Output
OUTLINE DIMENSIONS (Units in mm)
UPC1687GV
PACKAGE OUTLINE S08
7
8
6
ORDERING INFORMATION
5
PART NUMBER
QUANTITY
UPC1687GV-E1
1000/REEL
Note:
Embossed Tape, 8 mm wide. Pin 1 indicates pull-out direction of
tape.
Detail of Lead End
N
1
2
3
3.0 MAX
+7˚
4
3 -3˚
4.94 ± 0.2
+0.10
0.15 -0.05
1.5±0.1
0.87±0.2
3.2±0.1
1.8 MAX
0.1 ± 0.1
0.65
+0.10
0.3 -0.05
0.5 ± 0.2
0.575 MAX
Note:
All dimensions are typical unless otherwise specified.
PIN CONNECTION
1. OSC-Base (Bypass)
2. OSC-Base (Feedback)
3. OSC-Collector (Coupling)
4. VCC
5.
6.
7.
8.
IF OUT
GND
RF IN1 (Bypass)
RF IN2
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RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
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6/99
DATA SUBJECT TO CHANGE WITHOUT NOTICE