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UPC1686G-E1 PDF даташит

Спецификация UPC1686G-E1 изготовлена ​​​​«NEC» и имеет функцию, называемую «GENERAL PURPOSE 5 V FREQUENCY DOWN-CONVERTER IC».

Детали детали

Номер произв UPC1686G-E1
Описание GENERAL PURPOSE 5 V FREQUENCY DOWN-CONVERTER IC
Производители NEC
логотип NEC логотип 

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UPC1686G-E1 Даташит, Описание, Даташиты
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC1686G/GV
GENERAL PURPOSE 5 V FREQUENCY DOWN-CONVERTER IC
DESCRIPTION
The µPC1686 is Silicon monolithic IC designed for VHF band receiver applications. This IC consists of double
balanced mixer, local oscillator, IF amplifier, and voltage regulator.
The package is 8-pin SOP or SSOP suitable for high-density surface mount.
FEATURES
• VHF/CATV band operation
• Single-end push-pull IF amplifier suppresses fluctuation in output impedance.
• Good capability of VHF-varactor diode due to balanced amplifier oscillator
• Supply voltage: 5 V
• Packaged in 8-pin SOP or SSOP suitable for high-density mounting
APPLICATIONS
• Tuners for TV and VCR
• Receivers for VHF band
ORDERING INFORMATION
Part Number
µPC1686G-E1
µPC1686GV-E1
Package
8-pin plastic SOP (225 mil)
8-pin plastic SSOP (175 mil)
Supplying Form
Embossed tape 12 mm wide.
Pin 1 indicates pull-out direction of tape.
Qty 2.5 kp/reel.
Embossed tape 8 mm wide.
Pin 1 indicates pull-out direction of tape.
Qty 1 kp/reel.
Remark To order evaluation samples, please contact your local NEC office. (Part number for sample order:
µPC1686G, µPC1686GV)
Caution Electro-static sensitive devices
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. P11100EJ4V0DS00 (4th edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1996, 1999









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UPC1686G-E1 Даташит, Описание, Даташиты
INTERNAL BLOCK DIAGRAM
876
5
IF Pre
Amp.
OSC
OSC
Buffer
123
MIX
REG.
4
µPC1686G/GV
PIN CONFIGURATION (Top View)
1. OSC base (bypass)
1 8 2. OSC base (feedback)
3. OSC collector (coupling)
27
4. VCC
3 6 5. IF output (open collector)
6. GND
4 5 7. RF input1 (bypass)
8. RF input2
2 Data Sheet P11100EJ4V0DS00









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UPC1686G-E1 Даташит, Описание, Даташиты
µPC1686G/GV
PIN EXPLANATION
Pin Symbol
No.
Function and Explanation
1 OSC base Internal oscillator consists in balance amplifier.
(bypass)
2 pin and 3 pin should be externally equiped
with tank resonater circuit in order to oscillate
with feedback loop.
VCC
2 OSC base 1 pin should be grounded through approximate
(feedback) 10 pF coupling capacitor.
3 pin is defined as open collector. This pin
should be coupled through resistor or
3 OSC
chock coil in order to adjust Q and be
collector
supplied voltage. In case of abnormal
(coupling)
oscillation, adjust its Q lower to stabilize
the operation.
VREF
4 VCC
Supply voltage pin for the IC.
5 IF output IF output pin. IF amplifier is designed as single-
end push-pull amplifier.
This pin is assigned for the emitter follower
output with 50 constant resistive impedance
from
IF pre
amp.
in wide band.
Equivalent Circuit
31 2
to OSC buffer
amp.
VCC
5
IF
output
6 GND
GND pin for the IC.
7 RF input 1 7 pin and 8 pin are inputs for mixer designed as
(bypass)
double balanced type.
Either pin can be assigned for input and another
for ground.
VCC
8 RF input 2
from
OSC
buffer
RF
input
to IF
amp.
Data Sheet P11100EJ4V0DS00
3










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Номер в каталогеОписаниеПроизводители
UPC1686G-E1GENERAL PURPOSE 5 V FREQUENCY DOWN-CONVERTER ICNEC
NEC

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