The µPC2775GR/GS are Silicon monolithic ICs designed for TV/VCR tuner applications. These ICs consist of
double balanced mixers (DBM), local oscillator, preamplifiers for prescaler operation, IF amplifier, regulator, UHF/
VHF switching circuit, and so on. These one chip ICs cover a wide frequency band from VHF to UHF bands. These
µ
ICs are packaged in a 20 pins SSOP (shrink small outline package;
package; µPC2775GS) suitable for surface mounting. So, these ICs enable to produce economical and physically
small or high-density VHF - UHF tuner and reduce the tuner development time.
PC2775GR) or 20 pins SOP (small outline
FEATURES
• VHF to UHF band operation.
• Low oscillation frequency drift against supply voltage and temperature fluctuation due to balanced type UHF
oscillator.
• These ICs can be used in single ended or differential IF outputs.
• Supply voltage: 9 V
• Packaged in 20 pins SSOP or 20 pins SOP suitable for surface mounting
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. P10194EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
Pin voltage TYP.
above: V mode (V)
below: U mode (U)
6.90
- - - - - - - - - - - - -
6.25
6.00
- - - - - - - - - - - - -
3.90
6.00
- - - - - - - - - - - - -
3.90
6.90
- - - - - - - - - - - - -
6.25
0.0
- - - - - - - - - - - - -
9.0
5.40
- - - - - - - - - - - - -
5.40
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.
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.
UHF operation = 9.0 V
VHF operation = GND
UHF and VHF oscillator output pin.
In case of F/S tuner application,
connected PLL synthesizer IC’s input
pin.
µ
PC2775GR/GS
Equivalent circuitFunction and Explanation
5
6
2413
REG.
From
OSC
10
7
8
9
GND
VOSC
base (Tr. 1)
VOSC
base (Tr. 2)
VOSC
collector
(Tr. 1)
- - - - - - - - - - - - -
0.0
0.0
3.50
- - - - - - - - - - - - -
5.90
3.50
- - - - - - - - - - - - -
5.90
6.20
- - - - - - - - - - - - -
6.90
VHF and UHF oscillators’ GND pin.
Base pin of VHF oscillator with
balance amplifier.
Grounded through capacitor ~ 10 pF.
Base pin of VHF oscillator with
balance amplifier. Assemble LC
resonator with 10 pin to oscillate with
active feedback Loop.
Base pin of VHF oscillator with
balance amplifier. Connected to LC
resonator through feedback capacitor
~ 3 pF.
Data Sheet P10194EJ3V0DS00
10
8
9
REG.
3
11
11
12
13
12
Symbol
IF
output
Pin voltage TYP.
above: V mode (V)
below: U mode (U)
5.80
- - - - - - - - - - - - -
5.65
Function and Explanation
IF output pins of VHF-UHF band
functions.
Higher output power can be obtained
by connecting registor (ex. 470 Ω) to
the ground.
µ
PC2775GR/GS
Equivalent circuitPin No.
13
14
15
16
17
18
19
20
VCC
MIX
output 1
MIX
output 2
VRF
input
(bypass)
VRF input
GND
URF input
(bypass)
URF input
- - - - - - - - - - - - -
- - - - - - - - - - - - -
9.0
9.0
7.05
6.95
- - - - - - - - - - - - -
7.05
6.95
2.75
- - - - - - - - - - - - -
2.80
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
- - - - - - - - - - - - -
2.75
2.80
0
0
–
2.65
–
2.65
Power supply for VHF-UHF band
functions.
VHF and UHF MIX output pin.
These pins should be equipped with
tank circuit to adjust frequency.
VRF signal input pin from antenna.
Bypass pin for VHF MIX input.
Grounded through capacitor.
GND pin of MIX, IF amplifier and
regulator.
Bypass pin for UHF MIX input.
Grounded through capacitor.
URF signal input pin from antenna.
15
14
13
From
VHF
OSC
17
19
16
From
UHF
OSC
13
15
14
20
4
Data Sheet P10194EJ3V0DS00
µ
PC2775GR/GS
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C)
µ
PC2775GR
PARAMETERSYMBOLRATINGUNITTEST CONDITION
Supply voltage 1VCC11.0V
Supply voltage 2UB11.0V
Power dissipationPD500mWTA = 75 °C
Operating temperature rangeTA–40 to +75°C
Storage temperature rangeTstg–60 to +150°C
µ
PC2775GS
PARAMETERSYMBOLRATINGUNITTEST CONDITION
Supply voltage 1VCC11.0V
Supply voltage 2UB11.0V
Power dissipationPD700mWTA = 80 °C
Operating temperature rangeTA–40 to +80°C
Storage temperature rangeTstg–60 to +150°C
Note 1
Note 1
Note 1 Mounted on 50 × 50 × 1.6 mm double copper epoxy glass board.
RECOMMENDED OPERATING RANGE
µ
PC2775GR
PARAMETERSYMBOLMIN.TYP.MAX.UNIT
Supply voltage 1VCC8.09.010.0V
Supply voltage 2UB8.09.010.0V
Operating temperature rangeTA–20+25+75°C
µ
PC2775GS
PARAMETERSYMBOLMIN.TYP.MAX.UNIT
Supply voltage 1VCC8.09.010.0V
Supply voltage 2UB8.09.010.0V
Operating temperature rangeTA–20+25+80°C
NOTE Each lead centerline is located within 0.10 mm of its true position (T.P.) at maximum material condition.
10
Data Sheet P10194EJ3V0DS00
20 PIN PLASTIC SOP (300 mil) (UNIT: mm)
110
µ
PC2775GR/GS
1120
detail of lead end
+7°
3°
–3°
12.7±0.3
7.7±0.3
1.55±0.1
0.4±0.1
1.27
0.12
0.78 MAX.
M
0.10
0.20
5.6±0.2
0.6±0.2
+0.10
–0.05
0.1±0.1
1.8 MAX.
NOTE
Each lead centerline is located within 0.12 mm of its true position (T.P.) at maximum material condition.
1.1
Data Sheet P10194EJ3V0DS00
11
µ
PC2775GR/GS
RECOMMENDED SOLDERING CONDITIONS
The following conditions (see table below) must be met when soldering this product.
Please consult with our sales offices 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).
µ
PC2775GR/GS
Soldering processSoldering conditionsSymbol
Infrared ray reflowPeak package’s surface temperature: 235 °C or below,IR35-00-2
Reflow time: 30 seconds or below (210 °C or higher),
Number of reflow process: 2, Exposure limit
VPSPeak package’s surface temperature: 215 °C or below,VP15-00-2
Reflow time: 40 seconds or below (200 °C or higher),
Number of reflow process: 2, Exposure limit
Partial heating methodTerminal temperature: 300 °C or below,
Flow time: 3 seconds or below,
Exposure limit
Note
: None
Note
Note
: 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”.
12
Data Sheet P10194EJ3V0DS00
[MEMO]
µ
PC2775GR/GS
Data Sheet P10194EJ3V0DS00
13
[MEMO]
µ
PC2775GR/GS
14
Data Sheet P10194EJ3V0DS00
[MEMO]
µ
PC2775GR/GS
Data Sheet P10194EJ3V0DS00
15
µ
PC2775GR/GS
NESAT (NEC Silicon Advanced Technology) is a trademark of NEC Corporation.
• The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
• 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.
• Descriptions of circuits, software, and other related information in this document are provided for illustrative
purposes in semiconductor product operation and application examples. The incorporation of these circuits,
software, and information in the design of the customer's equipment shall be done under the full responsibility
of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third
parties arising from the use of these circuits, software, and information.
• 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
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systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific:Aircraft, 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.
M7 98.8
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