NEC UPC2795

DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC2795GV
GENERAL PURPOSE L-BAND DOWN CONVERTER
DESCRIPTION
The µPC2795GV is Silicon monolithic IC designed for L-band down converter.
This IC consists of double
balanced mixer, local oscillator, local oscillation buffer amplifier, IF buffer amplifier, and voltage regulator.
The package is 8-pin SSOP suitable for high-density surface mount.
FEATURES
•
Wide band operation
fRF = 0.95 to 2.15 GHz
•
Supply voltage
5V
•
Low distortion
IM3 = 55 dBc
•
Packaged in 8-pin SSOP suitable for high-density mounting
ORDERING INFORMATION
PART NUMBER
PACKAGE
µPC2795GV-E1
8-pin plastic SSOP (175 mil)
PACKAGE STYLE
Embossed tape 8 mm wide. 1 k/REEL
Pin 1 indicates pull-out direction of tape
For evaluation sample order, please contact your local NEC office. (Part number for sample order: µPC2795GV)
INTERNAL BLOCK DIAGRAM
8
7
OSC
Buffer
PIN CONFIGURATION (Top View)
6
5
OSC
REG1
IF
Buffer
REG2
1
8
2
7
3
6
4
5
1. RF input
2. GND
3. Vcc
4. IF out
5. OSC Base 2
6. OSC Collector 1
7. OSC Collector 2
8. OSC Base 1
MIX
1
2
3
4
Caution: Electro-static sensitive devices
The information in this document is subject to change without notice.
Document No. P11734EJ2V0DS00 (2nd edition)
Date Published June 1998 N CP(K)
Printed in Japan
©
1996
µPC2795GV
PIN EXPLANATIONS
Pin
Symbol
NO.
1
Pin Volt
Explanation
(V, TYP.)
RF IN
2.1
Equivalent Circuit
RF signal input pin.
Vcc
Double balanced mixer with Tr.1
and Tr. 2.
IF
Lo Buffer
2
GND
0.0
Ground pin.
1
3
VCC
5.0
4
IF OUT
2.3
Power supply pin.
IF output pin.
Vcc
This pin is assigned for the emitter
follower output with low impedance.
4
5
OSC
2.8
Base 2
Base pin of oscillator with balanced
amplifier.
Connected to LC resonator through
cuppling capacitor.
6
OSC
5.0
Collector 1
Collector pin of oscillator with
balanced amplifier.
Assemble LC resonator with 5 pin
through capacitor to oscillate with
active feedback loop. Loads should
be connected to this pin.
7
OSC
5.0
Collector 2
Collector pin of oscillator with
balanced amplifier.
Assemble LC resonator with 8 pin
through capacitor to oscillate with
active feedback loop. Loads should
be connected to this pin.
8
OSC
Base 1
2.8
Base pin of oscillator with balanced
amplifier.
Connected to LC resonator through
cuppling capacitor.
2
8
6
7
5
µPC2795GV
ABSOLUTE MAXIMUM RATINGS (TA = 25 ° C, unless otherwise specified)
PARAMETER
Supply Voltage
SYMBOL
TEST CONDITION
VCC
TA = 85 °C
*1
RATINGS
UNIT
6.0
V
250
mW
Power Dissipation
PD
Operating Ambient Temperature
TA
−40 to +85
°C
Storage Temperature
Tstg
−55 to +150
°C
*1 Mounted on 50 × 50 × 1.6 mm double epoxy glass board.
RECOMMENDED OPERATING RANGE
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply Voltage
VCC
4.5
5.0
5.5
V
Operating Ambient Temperature
TA
−40
+25
+85
°C
ELECTRICAL CHARACTERISTICS (TA = 25 ° C, VCC = 5 V; *1)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Circuit Current
ICC
25.5
35.0
48.0
mA
Lower Input Frequency
fRF1


0.95
GHZ
Upper Input Frequency
fRF2
2.15


GHZ
Conversion Gain 1
CG1
8.0
11.0
14.0
dB
TEST CONDITIONS
no input signal
fRF = 950 MHz, PRF = −30 dBm,
fIF = 402 MHz, POSC = −10dBm
Conversion Gain 2
CG2
6.5
9.5
12.5
dB
fRF = 2.15 GHz, PRF = −30 dBm,
fIF = 402 MHz, POSC = −10 dBm
Noise Figure 1
NF1

13.5
16.0
dB
fRF = 950 MHz, fIF = 402 MHz,
POSC = −10 dBm
Noise Figure 2
NF2

14.0
16.5
dB
fRF = 2.15 GHz, fIF = 402 MHz,
POSC = −10 dBm
Maximum Output Power 1
PO(sat) 1
2.0

5.0
dBm
fRF = 950 MHz, PRF = 0 dBm,
fIF = 402 MHz, POSC = −10 dBm
Maximum Output Power 2
PO(sat) 2
0.0

3.5
dBm
fRF = 2.15 GHz, PRF = 0 dBm,
fIF = 402 MHz, POSC = −10 dBm
*1 By measurement circuit.
STANDARD CHARACTERISTICS (TA = 25 ° C, VCC = 5 V; *1)
PARAMETER
3rd Order Intermodulation
SYMBOL
MIN.
TYP.
MAX.
UNIT
IM31

55

dBc
IM32

55

dBc
fRF = 2.15, 2.18 GHz, PRF = −25 dBm,
fOSC = 2.63 GHz, POSC = −10 dBm
Distortion 2
Oscillator Frequency
fRF = 950, 980 MHz, PRF = −25 dBm,
fOSC = 1430 MHz, POSC = −10 dBm
Distortion 1
3rd Order Intermodulation
TEST CONDITIONS
fosc
1.35

2.65
GHZ
*1 By measurement circuit.
3
µPC2795GV
TYPICAL CHARACTERISTICS
fRF vs. CG
16
14
14
CG - Conversion Gain - dB
CG - Conversion Gain - dB
fRF vs. CG
16
12
TA = 25 ˚C
10
TA = –40 ˚C
8
TA = 85 ˚C
6
4
VCC = 5 V
fIF = 402 MHZ
PRF = –30 dBm
POSC = –10 dBm
2
0
2.0
1.2
1.6
fRF - Input Frequency - GHz
0.8
TA = –40 ˚C
TA = 25 ˚C
10
8
TA = 85 ˚C
6
4
VCC = 5 V
fIF = 480 MHZ
PRF = –30 dBm
POSC = –10 dBm
2
0
2.4
fIF vs. CG
16
18
14
12
TA = 85 ˚C
TA = 25 ˚C
10
8
6
4
CG - Conversion Gain - dB
14
TA = –40 ˚C
16
VCC = 5 V
fIF = 402 MHZ
POSC = –10 dBm
2
0
0.8
2.0
1.2
1.6
fRF - Input Frequency - GHz
12
10
TA = 25 ˚C
8
TA =–40 ˚C
6
TA = 85 ˚C
4
VCC = 5 V
fRF = 2.15 GHZ
PRF = –30 dBm
POSC = –10 dBm
2
0
2.4
600
300
400
500
fIF - Intermediate Frequency - MHz
POSC vs. POUT
VCC vs. ICC
4
50
fRF = 950 MHZ
40
–20
ICC - Circuit Current - mA
Pout - Output Power - dBm
–10
fRF = 2.15 GHZ
–30
–40
–50
–40
2.4
2.0
1.2
1.6
fRF - Input Frequency - GHz
0.8
fRF vs. NF
20
NF - Noise Figure - dB
12
VCC = 5 V
PRF = –30 dBm
fIF = 480 MHZ
TA = 25 ˚C
0
–10
–30
–20
POSC - Oscillator Input Power - dBm
10
TA = 25 ˚C
30
TA = 85 ˚C
20
TA = –40 ˚C
10
0
0
1
4
3
2
VCC - Supply Voltage - V
5
6
µPC2795GV
STANDARD CHARACTERISTICS
Pin vs. Pout
Pin vs. Pout
20
20
10
950 MHZ
0
950 + 980
MHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 950 MHZ
fRF2 = 980 MHZ
fOSC = 1430 MHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = 25 ˚C
–50
–60
–70
–80
–40
2.15 GHZ
0
Pout - Output Power - dBm
Pout - Output Power - dBm
10
–30
–20
–10
0
2.15 + 2.18
GHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 2.15 GHZ
fRF2 = 2.18 GHZ
fOSC = 2.63 GHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = 25 ˚C
–50
–60
–70
–80
–40
10
–30
Pin - Input Power - dBm
Pin vs. Pout
10
950 MHZ
Pout - Output Power - dBm
Pout - Output Power - dBm
0
950 + 980
MHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 950 MHZ
fRF2 = 980 MHZ
fOSC = 1430 MHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = –40 ˚C
–50
–60
–70
10
–30
–20
–10
0
2.15 GHZ
0
2.15 + 2.18
GHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 2.15 GHZ
fRF2 = 2.18 GHZ
fOSC = 2.63 GHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = –40 ˚C
–50
–60
–70
–80
–40
10
–30
Pin - Input Power - dBm
–20
–10
0
10
Pin - Input Power - dBm
Pin vs. Pout
Pin vs. Pout
20
20
10
10
950 MHZ
Pout - Output Power - dBm
0
Pout - Output Power - dBm
0
20
10
950 + 980
MHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 950 MHZ
fRF2 = 980 MHZ
fOSC = 1430 MHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = 85 ˚C
–50
–60
–70
–80
–40
–10
Pin vs. Pout
20
–80
–40
–20
Pin - Input Power - dBm
–30
–20
–10
Pin - Input Power - dBm
0
2.15 GHZ
0
2.15 + 2.18
GHz
–10
–20
–30
–40
VCC = 5 V
fRF1 = 2.15 GHZ
fRF2 = 2.18 GHZ
fOSC = 2.63 GHZ
POSC = –10 dBm
fIF = 480 MHZ
TA = 85 ˚C
–50
–60
–70
10
–80
–40
–30
–20
–10
0
10
Pin - Input Power - dBm
5
µPC2795GV
STANDARD CHARACTERISTICS (VCC = 5 V, TA = 25 ° C)
RF Input Impedance (@1 pin)
OSC Frequency Range*¹
0
RL 0 dBm
5 dB/
2.704 GHZ
–10
–20
1.349 G
Å•
2.720 G
–30
–40
1
2
CENTER 2.000 GHZ
RBW 1.0 MHZ VBW 1.0 MHZ
SPAN 1.600 GHZ
SWP 50 ms
*1 Measured at IF output pin (4 pin)
START 900 MHZ
STOP
MARKER
3 GHZ
Re [Ω] Im [Ω]
1 : 950 MHZ 41.5
–152 (1.10 pF)
2 : 2150 MHZ 11.2
–54.9 (1.35 pF)
OSC Input Impedance (@8 pin)
IF Output Impedance
2
2
1
1
START 900 MHz
STOP
3 GHz
MARKER
Re [Ω] Im [Ω]
1 : 1350 MHz 9.22 –36.1 (3.27 pF)
26.9 (1.63 nH)
2 : 2630 MHz 31.5
6
START 300 MHz
STOP 600 MHz
MARKER
Re [Ω] Im [Ω]
1 : 402.8 MHz 9.48 11.2 (9.40 nH)
2 : 479.5 MHz 10.4 13.4 (4.46 nH)
µPC2795GV
MEASUREMENT CIRCUIT
VCC
OSC IN
0.1 µF
1 µF
100 pF
150 Ω
8
150 Ω
7
OSC
Buffer
100 pF
6
5
OSC
REG1
REG2
IF
Buffer
MIX
1
100 pF
2
1000 pF
3
1 µF
4
1000 pF
0.1 µ F
RF IN
VCC
IF OUT
7
µPC2795GV
APPLICATION CIRCUIT EXAMPLE
VCC
Vtune
0.1 µF
L : 7 mm
12 kΩ
0.1 µF
1000 pF
150Ω
150Ω
HVU316
HVU316
1000 pF
12 kΩ
12 kΩ
2 pF
3 pF
4 pF
3 pF
2 pF
8
7
OSC
Buffer
6
5
OSC
REG1
REG2
IF
Buffer
MIX
1
100 pF
2
1000 pF
3
1 µF
4
1000 pF
0.1 µF
RF IN
VCC
IF OUT
The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.
8
µPC2795GV
Illustration of the application circuit assembled on evaluation board
RF in
Lo in
C7
Vtune
C4 C5 C6
VCC
VCC
C4
IF out
UPC2795GV
R2
CV1
C2
R2
Vtu
C3
C1
R11
C4
R11
C5
C3
C2
R2 CV2
Cv1 = CV2 : HVU316
C1 : 4 pF
C2 : 2 pF
C3 : 3 pF
C4 : 1000 pF
L
VCC
C5 : 0.1 µ F
C6 : 1 µF
C7 : 100 pF
R1 : 150 Ω
R2 : 12 kΩ
shows short circuited strip for ground
shows cutout
9
µPC2795GV
PACKAGE DIMENSIONS
8 PIN PLASTIC SSOP (unit : mm)
8
5
+ 7˚
3˚ – 3˚
detail of lead end
1
4
4.94±0.2
3.0 MAX.
0.15 –0.05
0.5±0.2
0.1±0.1
0.65
10
0.87±0.2
+0.10
1.5±0.1
1.8 MAX.
3.2±0.1
0.575 MAX.
0.3 +0.10
–0.05
0.10 M
0.15
µPC2795GV
NOTES ON CORRECT USE
(1) Observe precautions for handling because of electro-static sensitive devices.
(2) Form a ground pattern as wide as possible to minimize ground impedance (to prevent undesired oscillation).
(3) Keep the track length of the ground pins as short as possible.
(4) A low pass filter must be attached to VCC line.
(5) A matching circuit must be externally attached to output port.
RECOMMENDED SOLDERING CONDITIONS
The following conditions (see table below) must be met when soldering this product.
Please consult with our sales officers in case other soldering process is used or in case soldering is done under
different conditions.
For details of recommended soldering conditions for surface mounting, refer to information document
SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL (C10535E).
µPC2795GV
Soldering process
Infrared ray reflow
Soldering conditions
Symbol
Peak package’s surface temperature: 235 °C or below,
IR35-00-3
Reflow time: 30 seconds or below (210 °C or higher),
Note
Number of reflow process: 3, Exposure limit
: None
Peak package’s surface temperature: 215 °C or below,
VPS
VP15-00-3
Reflow time: 40 seconds or below (200 °C or higher),
Note
Number of reflow process: 3, Exposure limit
Wave soldering
: None
Solder temperature: 260°C or below,
WS60-00-1
Reflow time: 10 seconds or below,
Note
Number of reflow process: 1, Exposure limit
Partial heating
Terminal temperature: 300 °C or below,
method
Flow time: 3 seconds or below,
Note
Exposure limit : None
: None
Note Exposure limit before soldering after dry-pack package is opened.
Storage conditions: 25 °C and relative humidity at 65 % or less.
Caution Do not apply more than single process at once, except for “Partial heating method”.
11
µPC2795GV
The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.
NESAT (NEC Silicon Advanced Technology) is a trademark of NEC Corporation.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this
document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC Corporation or others.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on
a customer designated "quality assurance program" for a specific application. The recommended applications
of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each
device before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
Anti-radioactive design is not implemented in this product.
M4 96. 5