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Número de pieza | UPC2798GR | |
Descripción | IF DOWN CONVERTOR IC FOR DIGITAL CATV | |
Fabricantes | NEC | |
Logotipo | ||
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No Preview Available ! DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC2798GR
IF DOWN CONVERTOR IC FOR DIGITAL CATV
DESCRIPTION
The µPC2798GR is a Silicon monolithic IC designed for use as QAM IF down convertor for digital CATV. This IC
consists of AGC amplifier, mixer, oscillator, and video amplifier.
The package is 20 pins SSOP suitable for high-density surface mount.
FEATURES
• Low distortion AGC amplifier
IIP3 = −9 dBm
• On chip IF convertor
fin = 30 to 250 MHz
• On chip video amplifier
Vout = 3.0 VP-P (differential, @ RL = 1kΩ)
• Supply voltage: 5 V
• Packaged in 20 pins SSOP suitable for high-density surface mount.
ORDERING INFORMATION
PART NUMBER
µPC2798GR-E1
PACKAGE
20 pins plastic SSOP (225 mil)
PACKAGE STYLE
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: µPC2798GR)
Please refer to “Quality grade on NEC Semiconductor Devices” (Document number C11531E) published by NEC
Corporation to know the specification of quality grade on the devices and its recommended applications.
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. P11998EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1996, 1999
1 page µPC2798GR
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C unless otherwise specified)
PARAMETER
Supply Voltage 1
Supply Voltage 2
Power Dissipation
Operating Ambient Temperature
Storage Temperature
SYMBOL
Vcc1
Vcc2
PD
TA
Tstg
RATING
6.0
6.0
430
−40 to +85
−55 to +150
UNIT
V
V
mW
°C
°C
TEST CONDITIONS
Mixer block
Video Amp block
TA = 85 °C*1
PARAMETER
Supply Voltage 1
Supply Voltage 2
Power Dissipation
Operating Ambient Temperature
Storage Temperature
SYMBOL
Vcc1
Vcc2
PD
TA
Tstg
RATING
6.0
11.0
500
−40 to +75
−55 to +150
UNIT
V
V
mW
°C
°C
TEST CONDITIONS
Mixer block
Video Amp block
TA = 75 °C*1
*1. Mounted on 50 × 50 × 1.6 mm double copper epoxy glass board.
RECOMMENDED OPERATING RANGE
PARAMETER
Supply Voltage 1
Supply Voltage 2
Operating Ambient Temperature 1*2
Operating Ambient Temperature 2*3
SYMBOL MIN. TYP. MAX. UNIT
Vcc1 4.5 5.0 5.5 V
Vcc2 4.5 5.0 10.0 V
TA1 −40 +25 +85 °C
TA2 −40 +25 +75 °C
*2. @Vcc1 = Vcc2 = 4.5 to 5.5 V
*3. @Vcc1 = 4.5 to 5.5 V, Vcc2 = 4.5 to 10.0 V
ELECTRICAL CHARACTERISTICS (TA = 25 °C)
PARAMETER
SYMBOL MIN.
Total Block (RL = 1 kΩ, by measurement circuit 5)
Circuit Current 1
Icc1 24.0
Maximum Conversion Gain 1 CGMAX1
68.0
Maximum Conversion Gain 2 CGMAX2
Minimum Conversion Gain 1
CGMIN1
32.0
Minimum Conversion Gain 2
CGMIN2
Circuit Current 2
Icc1 32.0
Maximum Conversion Gain 3 CGMAX3
72.0
Maximum Conversion Gain 4 CGMAX4
Minimum Conversion Gain 3
CGMIN3
Minimum Conversion Gain 4
CGMIN4
TYP.
35.5
74.0
58.0
39.0
22.0
47.0
78.5
59.0
43.5
22.5
MAX. UNIT
TEST CONDITIONS
45.0
76.0
43.0
60.0
81.0
mA no input signal, Vcc1 = Vcc2 = 5 V
dB VAGC = 4.0 V, G1A-G1B pins: short*4
dB VAGC = 4.0 V, G1A-G1B pins: open*4
dB VAGC = 1.0 V, G1A-G1B pins: short*4
dB VAGC = 1.0 V, G1A-G1B pins: open*4
mA no input signal, Vcc1 = 5 V, Vcc2 = 9 V
dB VAGC = 4.0 V, G1A-G1B pins: short*4
dB VAGC = 4.0 V, G1A-G1B pins: open*4
dB VAGC = 1.0 V, G1A-G1B pins: short*4
dB VAGC = 1.0 V, G1A-G1B pins: open*4
Data Sheet P11998EJ3V0DS00
5
5 Page µPC2798GR
STANDARD CHARACTERISTICS (by measurement circuit 3, TA = 25 °C)
DIFFERENTIAL GAIN vs. INPUT FREQUENCY
400
VCC2 = 9 V
DIFFERENTIAL GAIN vs. INPUT FREQUENCY
40
300 30
VCC2 = 9 V
200
VCC2 = 5 V
VCC2 = 5 V
20
100
G1A–G1B: short
POUT = 1.5 Vp–p const.
0
0 20 40
60
80
fin - Input Frequency - MHz
100
OUTPUT POWER vs. INPUT POWER
0
VCC2 = 9 V
–10
VCC2 = 5 V
–20
–30
–40
fin = 10 MHz
G1A–G1B: short
–30 –20 –10
Pin - Input Power (50 Ω) - dBm
0
DIFFERENTIAL GAIN vs. EXTERNAL RESISTANCE
500
fin =10 MHz
400
10
G1A–G1B: open
POUT = 1.5 Vp–p const.
0
0 20 40
60
80
fin - Input Frequency - MHz
100
OUTPUT POWER vs. INPUT POWER
0
–10 VCC2 = 9 V
–20
VCC2 = 5 V
–30
–40
–50
–40
fin = 10 MHz
G1A–G1B: open
–30 –20
10
0
Pin - Input Power (50 Ω) - dBm
10
300
200 VCC2 = 9 V
100 VCC2 = 5 V
0
short 30
43 56 100 246 2000 open
Resistance - Ω
Data Sheet P11998EJ3V0DS00
11
11 Page |
Páginas | Total 24 Páginas | |
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