NEC UPC2797

DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC2797GR
FREQUENCY DOWN CONVERTER FOR
VHF TO UHF BAND TV/VCR TUNER
DESCRIPTION
The µPC2797GR is a Silicon monolithic IC designed for TV/VCR tuner applications. This IC consists of a double
balanced mixer (DBM), local oscillator, preamplifier for precscaler operation, IF amplifier, regulator, UHF/VHF
switching circuit, and so on. This one-chip IC covers a wide frequency band from VHF to UHF bands. This IC is
packaged in 20-pin SSOP (Shrink Small Outline Package) suitable for surface mounting.
FEATURES
• VHF to UHF bands operation.
• Low distortion
CM: VHF (@fRF = 470 MHz) 96 dBµ
• Supply voltage
: 9V
UHF (@fRF = 890 MHz) 92 dBµ
• Packaged in 20-pin SSOP suitable for surface mounting
ORDERING INFORMATION
Part Number
µPC2797GR-E1
Package
Package Style
20-pin plastic SSOP (225 mil)
Embossed tape 12 mm wide. 2.5 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: µPC2797GR)
Caution electro-static sensitive device
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. P11889EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
©
1996,1999
µPC2797GR
PIN CONFIGURATION (Top View)
1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
20
10
11
UHF OSC Collector
UHF OSC Base
UHF OSC Base
UHF OSC Collector
UB
OSC OUTPUT
GND
VHF OSC Base
VHF OSC Base
VHF OSC Collector
REG
IF OUTPUT
VCC
MIX OUTPUT
MIX OUTPUT
VHF RF INPUT
VHF RF INPUT
GND
UHF RF INPUT
UHF RF INPUT
INTERNAL BLOCK DIAGRAM
20
19
18
17
16
15
14
13
12
11
IF
Amp
REG.
U OSC
1
2
2
3
V OSC
4
5
6
7
8
Data Sheet P11889EJ3V0DS00
9
10
(Tr. 1)
(Tr. 2)
(Tr. 1)
(Tr. 2)
(Tr. 1)
(Tr. 2)
(Tr. 1)
µPC2797GR
PIN EXPLANATION
Pin No.
1
2
Symbol
Pin Voltage TYP.
above: VHF mode
below: UHF mode
UOSC
collector
(Tr. 1)
6.90
UOSC
base (Tr.2)
6.00
6.25
3.90
3
UOSC
base (Tr. 1)
6.00
3.90
4
UOSC
collector
(Tr. 2)
6.90
6.25
5
UB
—
9.0
Function and Explanation
Equivalent Circuit
Collector pin of UHF oscillator.
Assemble LC resonator with 2
pin through capacitor ~ 1 pF to
oscillate with active feedback loop.
Base pin of UHF oscillator
with balance amplifier. Connected
to LC resonator through feedback
capacitor ~ 300 pF.
3
1
4
2
5
Base pin of UHF oscillator
with balance amplifier.
Connected to LC resonator
through feedback capacitor ~ 300 pF.
Collector pin of UHF oscillator
with balance amplifier. Assemble
LC resonator with 3 pin through
capacitor ~ 1 pF to oscillate with
active feedback loop.
Double balanced oscillator with
transistor 1 and transistor 2.
Switching pin for VHF or UHF
operation.
VHF operation = open
UHF operation = 9.0 V
6
OSC
output
5.85
5.85
UHF and VHF oscillator output
pin. In case of F/S tuner
application, connected PLL
symthesizer IC’s input pin.
Grounded through 1.5 kΩ
resistor.
REG
 from
 OSC

6
1.5 k
* External element
7
8
9
10
GND
0.0
GND pin of VHF and UHF
0.0
oscillator.
VOSC
base
3.50
Base pin of VHF oscillator.
Grounded through capacitor ~
(Tr. 1)
5.90
10 pF.
VOSC
base
(Tr. 2)
3.50
Base pin of VHF oscillator.
Assemble LC resonator with
10 pin to oscillate with active
feedback loop.
VOSC
collector
(Tr. 1)
5.90
6.20
6.90
8
10
9
REG
Collector pin of VHF oscillator.
Connected to LC resonator
through feedback capacitor ~ 3 pF.
Data Sheet P11889EJ3V0DS00
3
µPC2797GR
Pin No.
11
12
Symbol
REG
IF output
Pin Voltage TYP.
above: VHF mode
below: UHF mode
Function and Explanation
6.90
Monitor pin of regulator output
6.90
voltage.
2.80
IF output pin of VHF-UHF
band functions.
Equivalent Circuit
13
12
2.80
13
14
15
16
VCC
9.0
Power supply pin for VHF-
9.0
UHF band functions.
MIX
7.10
VHF and UHF MIX output pins.
output1
7.05
These pins should be
MIX
7.10
output2
7.05
VRF input
(bypass)
3.10
13
equipped with tank circuit to
adjust intermediate frequency.
Bypass pin for VHF MIX input.
Grounded through capacitor.



17
3.10
17
VRF input
3.10
14 15
from
VHF
OSC
16
VRF signal input pin from
antenna.
3.10
18
GND
0.0
GND pin of MIX, IF amplifier
13
and regulator.
14
0.0
19
URF input
(bypass)
3.10
Bypass pin for UHF MIX input.
Grounded through capacitor.
URF input
3.10



19
3.10
20
URF signal input pin from
antenna.
3.10
4
15
Data Sheet P11889EJ3V0DS00
20
from
UHF
OSC
µPC2797GR
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C unless otherwise specified)
Parameter
Symbol
Supply Voltage 1
VCC
Supply Voltage 2
UB
Condition
TA = 75
°C*1
Rating
Unit
11.0
V
11.0
V
500
mW
Power dissipation
PD
Operating Ambient Temperature
TA
–40 to +75
°C
Storage temperature
Tstg
–60 to +150
°C
*1 Mounted on 50 × 50 × 1.6 mm double copper epoxy glass board.
RECOMMENDED OPERATING RANGE
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Supply voltage 1
VCC
8.0
9.0
10.0
V
Supply voltage 2
UB
8.0
9.0
10.0
V
Operating Ambient Temperature
TA
–20
+25
+75
°C
Data Sheet P11889EJ3V0DS00
5
µPC2797GR
ELECTRICAL CHARACTERISTICS (TA = 25 °C, VCC = 9 V, fIF = 45 MHz)
Parameter
Circuit Current 1
Symbol
ICC1
Test Conditions
@VHF, no input signal
*1, 2
*1, 2
Circuit Current 2
ICC2
@UHF, no input signal
Conversion Gain 1
CG1
fRF = 55 MHz, PRF = –30 dBm
POSC = –10 dBm
*3
fRF = 200 MHz, PRF = –30 dBm
POSC = –10 dBm
*3
fRF = 470 MHz, PRF = –30 dBm
POSC = –10 dBm
*3
fRF = 470 MHz, PRF = –30 dBm
POSC = –10 dBm
*3
fRF = 890 MHz, PRF = –30 dBm
POSC = –10 dBm
*3
Conversion Gain 2
Conversion Gain 3
Conversion Gain 4
Conversion Gain 5
CG2
CG3
CG4
CG5
TYP.
MAX.
Unit
31
38
45
mA
31
38
45
mA
18.5
22.0
25.5
dB
18.5
22.0
25.5
dB
18.5
22.0
25.5
dB
24.5
28.0
31.5
dB
24.5
28.0
31.5
dB
Noise Figure 1
NF1
fRF = 55 MHz, POSC = –10 dBm
*4
—
11.0
14.0
dB
Noise Figure 2
NF2
fRF = 200 MHz, POSC = –10 dBm
*4
—
11.0
14.0
dB
Noise Figure 3
NF3
fRF = 470 MHz, POSC = –10 dBm
*4
—
11.0
14.0
dB
fRF = 470 MHz, POSC = 0 dBm
*4
—
9.5
12.5
dB
fRF = 890 MHz, POSC = 0 dBm
*4
—
10.0
13.0
dB
fRF = 55 MHz, PRF = 0 dBm
POSC = –10 dBm
7.0
10.0
—
dBm
*3
fRF = 200 MHz, PRF = 0 dBm
POSC = –10 dBm
7.0
10.0
—
dBm
*3
fRF = 470 MHz, PRF = 0 dBm
POSC = –10 dBm
7.0
10.0
—
dBm
*3
fRF = 470 MHz, PRF = 0 dBm
POSC = –10 dBm
7.0
10.0
—
dBm
*3
fRF = 890 MHz, PRF = 0 dBm
POSC = –10 dBm
7.0
10.0
—
dBm
*3
Noise Figure 4
Noise Figure 5
Maximum Output Power 1
Maximum Output Power 2
Maximum Output Power 3
Maximum Output Power 4
Maximum Output Power 5
NF4
NF5
PO (sat)1
PO (sat)2
PO (sat)3
PO (sat)4
PO (sat)5
*1 no resistance of OSC output
*2 By measurement circuit 1
*3 By measurement circuit 2
*4 By measurement circuit 3
6
MIN.
Data Sheet P11889EJ3V0DS00
µPC2797GR
STANDARD CHARACTERISTICS (Reference Values) (TA = 25 °C, VCC = 9 V)
Parameter
1 % cross-modulation distortion 1
1 % cross-modulation distortion 2
1 % cross-modulation distortion 3
1 % cross-modulation distortion 4
1 % cross-modulation distortion 5
Symbol
CM1
CM2
CM3
CM4
CM5
Test Conditions
fdes = 55 MHz, fundes = fdes + 6 MHz,
Pdes = –30 dBm, fIF = 45 MHz,
Posc = –10 dBm, AM 100 kHz, 30 %
modulation, DES/CM = 46 dBc
fdes = 200 MHz, fundes = f des + 6 MHz,
Pdes = –30 dBm, fIF = 45 MHz,
Posc = –10 dBm, AM 100 kHz, 30 %
modulation, DES/CM = 46 dBc
fdes = 470 MHz, fundes = f des + 6 MHz,
Pdes = –30 dBm, fIF = 45 MHz,
Posc = –10 dBm, AM 100 kHz, 30 %
modulation, DES/CM = 46 dBc
fdes = 470 MHz, fundes = f des + 6 MHz,
Pdes = –30 dBm, fIF = 45 MHz,
Posc = –10 dBm, AM 100 kHz, 30 %
modulation, DES/CM = 46 dBc
fdes = 890 MHz, fundes = f des + 6 MHz,
Pdes = –30 dBm, fIF = 45 MHz,
Posc = –10 dBm, AM 100 kHz, 30 %
modulation, DES/CM = 46 dBc
Value for Reference
Unit
100
dBµ
100
dBµ
96
dBµ
94
dBµ
92
dBµ
*1
*1
*1
*1
*1
*1 By measurement circuit 4
Data Sheet P11889EJ3V0DS00
7
µPC2797GR
TYPICAL CHARACTERISTICS
ICC vs. VCC
ICC vs. VCC
50
VHF mode
45 no input signal*1
measurement
40
circuit 1
35
45
ICC - Circuit Current - mA
ICC - Circuit Current - mA
50
30
25
20
15
10
5
0
0
2
4
6
8
40
UHF mode
no input signal*1
measurement
circuit 1
35
30
25
20
15
10
TA = 25 °C
TA = 75 °C
TA = –20 °C
10
12
5
0
0
VCC - Supply Voltage - V
2
4
6
8
TA = 25 °C
TA = 75 °C
TA = –20 °C
10
12
VCC - Supply Voltage - V
*1 External resistor is removed.
Pout vs. Pin
Pout vs. Pin
15
VCC = 9 V
fRF = 470 MHz
10 fIF = 45 MHz
POSC = –10 dBm
measurement
5 circuit 2
0
–5
–10
TA = 25 °C
TA = 75 °C
TA = –20 °C
–15
–20
–40
–30
–20
–10
0
Pout - Output Power - dBm
Pout - Output Power - dBm
15
VCC = 9 V
fRF = 890 MHz
fIF = 45 MHz
10 POSC = –10 dBm
measurement
circuit 2
5
0
–5
–15
–40
10
Pin - Input Power - dBm
20
15
10
400
TA = 25 °C
TA = 75 °C
TA = –20 °C
600
800
1 000
CM - 1 % Cross-modulation Distortion - dBµ
NF - Noise Figure - dB
CG - Conversion Gain - dB
25
200
–10
0
10
105
100
95
90
VCC = 9 V
fundes = fRF + 6MHz
fIF = 45 MHz
85 PRF = –30 dBm
POSC = –10 dBm
measurement
circuit 4
80
0
200
400
600
TA = 25 °C
TA = 75 °C
TA = –20 °C
1 000
800
fRF - Input Frequency - MHz
fRF - Input Frequency - MHz
8
–20
CM vs. fRF
CG, NF vs. fRF
0
0
–30
Pin - Input Power - dBm
30
VCC = 9 V
fIF = 45 MHz
PRF = –30 dBm
5 POSC = –10 dBm
POSC = 0 dBm
(@UHF, NF)
measurement circuit 2, 3
TA = 25 °C
TA = 75 °C
TA = –20 °C
–10
Data Sheet P11889EJ3V0DS00
µPC2797GR
STANDARD CHARACTERISTICS (by application circuit example)
CG, NF vs. fRF
Pout vs. Pin
20
VCC = 9 V
fIF = 45 MHz
PRF = –30 dBm
Pout - Output Power - dBm
CG - Conversion Gain - dB
NF - Noise Figure - dB
40
30
20
10
VCC = 9 V
fIF = 45 MHz
10
fRF = 802 MHz
fRF = 362 MHz
0
–10
VCC = 9 V
fIF = 45 MHz
0
0
200
400
600
800
–20
–40
1 000
fRF - Input Frequency - MHz
–30
–20
–10
0
10
Pin - Input Power - dBm
CM vs. fRF
6 Channel Beat
110
10
Pout - Output Power - dBm
100
90
VCC = 9 V
fundes = fRF + 6 MHz
fIF = 45 MHz
PRF = –30 dBm
80
0
200
400
–10
–20
–30
–40
–50
VCC = 9 V
fP = 83.25 MHz
fS = 87.75 MHz
fOSC = 129 MHz
–60
600
800
–70
–40
1 000
fRF - Input Frequency - MHz
–30
–20
–10
0
Pin - Input Power - dBm
Vtu vs. fOSC
30
25
Vtu - Tuning Voltage - V
CM - 1 % Cross Modulation
Distortion - dBµ
0
20
VL
VH
U
15
10
5
0
0
200
400
600
800
1 000
fOSC - OSC Frequency - MHz
Data Sheet P11889EJ3V0DS00
9
µPC2797GR
INPUT IMPEDANCE (by measurement circuit 5)
<VRF INPUT: 17 PIN>
1 45 MHz
874.28Ω −221.97Ω
2 200 MHz
375.14Ω −369.39Ω
3 470 MHz
98.023Ω −170.73Ω
1
2
3
START
STOP
0.045000000 GHz
0.500000000 GHz
<URF INPUT: 20 PIN>
1 400 MHz
117.56Ω −204.60Ω
2 600 MHz
50.523Ω −116.67Ω
3 890 MHz
16.645Ω −54.867Ω
1
3
START
STOP
10
2
0.400000000 GHz
1.000000000 GHz
Data Sheet P11889EJ3V0DS00
µPC2797GR
OUTPUT IMPEDANCE (by measurement circuit 5)
<IF OUTPUT: 12 PIN>
1 45 MHz
53.869Ω 53.543Ω
1
START
STOP
0.045000000 GHz
0.065000000 GHz
Data Sheet P11889EJ3V0DS00
11
µPC2797GR
MEASUREMENT CIRCUIT 1
OPEN
VCC(9V)
OPEN
1000
pF
1000
pF
1000
pF
20
1000
pF
19
18
17
OPEN
1000
1000
pF
pF
20T
27 pF
16
15
1000
pF
14
13
12
11
REG
1
2
3
4
5
6
7
1000
pF
1000
pF
8
9
1000
pF
1000
pF
10
1000
pF
1000
pF
OPEN
5pin Voltage
OPEN
OPEN
UB(9V)
VHF
OPEN
UHF
9V
MEASUREMENT CIRCUIT 2
SG1
VHF
Spectrum
Analyzer
UHF
1000
pF
1000
pF
1000
pF
20
19
1000
pF
18
17
16
1000
pF
20T
27 pF
15
14
13
1000
pF
1000
pF
12
11
REG
1
1000
pF
2
3
4
5
6
7
1000
pF
1000
pF
8
1000
pF
1.5k 1000
pF
OPEN
9
10
5pin Voltage
1000
pF
VHF
SG2
UHF
12
Data Sheet P11889EJ3V0DS00
VHF
OPEN
UHF
9V
µPC2797GR
MEASUREMENT CIRCUIT 3
Noise
Meter
VCC(9V)
Noise
Source
VHF
1000
pF
UHF
1000
pF
1000
pF
20
1000
pF
19
18
17
BPF
1000
1000
pF
pF
1000
pF
20T
27 pF
16
15
14
13
12
11
REG
1
2
3
4
5
6
7
1000
pF
1000
pF
8
9
10
1000
pF
1000
pF
1.5k 1000
pF
1000
pF
OPEN
5pin Voltage
VHF
OPEN
UHF
9V
VHF
UB(9V)
SG1
UHF
MEASUREMENT CIRCUIT 4
MIX PAD
VHF
Spectrum
Analyzer
UHF
1000
pF
SG1
desire
SG2
1000
pF
1000
pF
20
19
1000
pF
18
17
16
1000
pF
20T
27 pF
15
14
13
1000
pF
1000
pF
12
11
undesire
REG
1
1000
pF
2
3
4
5
6
1000
pF
1000
pF
7
8
1000
pF
1000
1.5k pF
9
10
5pin Voltage
1000
pF
OPEN
VHF
OPEN
UHF
9V
VHF
SG3
UHF
Data Sheet P11889EJ3V0DS00
13
µPC2797GR
MEASUREMENT CIRCUIT 5
Network
Analyzer
VCC(9V)
1000
pF
1000
pF
1000
pF
20
19
1000
pF
1000
pF
18
17
16
1000
pF
1000
pF
15
14
13
12
11
REG
1
2
1000
pF
3
4
5
6
1000
pF
8
1000
pF
1000
pF
1000
pF
7
9
10
1000
pF
5pin Voltage
OPEN
OPEN
OPEN
UB(9V)
14
Data Sheet P11889EJ3V0DS00
VHF
OPEN
UHF
9V
µPC2797GR
Application Circuit Example
URF IN
VRF IN
1 000
pF
VCC
1 000
pF
1 000
pF
19
18
17
1 000
pF
20T
1 000
pF
27pF
1 000
pF
20
IF OUT
16
15
14
1 000
pF
13
12
11
REG.
1
4 pF
Vtu
2
1 pF
3
3 pF
360 pF
6 pF
47 k
8 pF
0.5 pF
4
5
1 pF
6
7
1.5 k
8
9
10 pF 200 pF
3 pF
1 000
pF
360 pF
47 k
10
75
1 000
pF
47 k
47 k
4T
OSC
OUT
2T
1T363
Vtu
1T363 × 2
47 k
82 pF
1 000 pF
HB
47 k
UB
7T
1 000 pF
LB
1 000 pF
2.7 k
The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.
Data Sheet P11889EJ3V0DS00
15
µPC2797GR
µPC2797GR
IF OUT
VLO IN
OSC OUT
ILLUSTRATION OF THE EVALUATION BOARD FOR APPLICATION CIRCUIT EXAMPLE (Surface)
A
16
ULO IN
URF IN
VRF IN
1
1000p
B
Data Sheet P11889EJ3V0DS00
µPC2797GR
ILLUSTRATION OF THE EVALUATION BOARD FOR APPLICATION CIRCUIT EXAMPLE (Back side)
A
B
1000p
1000p
1000p
Vtu
4p
47k
1p
VCC
1T363
360p
3p
0.5pF
360p
1p
27p
20T
1000p
1000p
2T
6p
8p
47k
UB
200p
3p
10p
75
1T363×2
47k
1000p 82p
47k
7T
1.5k
1000p
4T
47k
1000p 2.7k
1000p
47k
1000p
1000p
LB
HB
represents cutout
Data Sheet P11889EJ3V0DS00
17
µPC2797GR
PACKAGE DIMENSIONS
20 PIN PLASTIC SSOP (225 mil) (UNIT: mm)
20
11
detail of lead end
+7˚
3˚–3˚
1
10
6.7 ± 0.3
6.4 ± 0.2
1.8 MAX.
4.4 ± 0.1
1.5 ± 0.1
1.0 ± 0.2
0.5 ± 0.2
0.15
0.65
+0.10
0.22 –0.05
0.10 M
+0.10
0.15 –0.05
0.575 MAX.
0.1 ± 0.1
NOTE Each lead centerline is located within 0.10 mm of its true position (T.P.) at maximum material condition.
18
Data Sheet P11889EJ3V0DS00
µPC2797GR
NOTE ON CORRECT USE
(1) Observe precautions for handling because of electro-static sensitive devices.
(2) Form a ground pattern as widely as possible to minimize ground impedance (to prevent undesires 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).
µPC2797GR
Soldering Process
Soldering Conditions
Symbol
Infrared ray reflow
Peak package’s surface temperature: 235 ˚C or below,
Reflow time: 30 seconds or below (210 ˚C or higher),
Number of reflow process: 3, Exposure limit*1: None
IR35-00-3
VPS
Peak package’s surface temperature: 215 ˚C or below,
Reflow time: 40 seconds or below (200 ˚C or higher),
Number of reflow process: 3, Exposure limit*1: None
VP15-00-3
Partial heating method
Terminal temperature: 300 ˚C or below,
Flow time: 3 seconds or below,
Exposure limit*1: None
*1
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”.
Data Sheet P11889EJ3V0DS00
19
µPC2797GR
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M7 98.8