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PDF L8312 Data sheet ( Hoja de datos )
| Número de pieza | L8312 | |
| Descripción | DUAL POLARIZATION AND TONE SWITCH CONTROLLER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
L8312
Preliminary
LINEAR INTEGRATED CIRCUIT
DUAL POLARIZATION AND
TONE SWITCH CONTROLLER
DESCRIPTION
The UTC L8312 is specially designed integrated circuit for control
satellite receiver front-end block switch and provides customers
with dual independent channel of two-control signal: polarization and
tone switch controller for LNB switch signal path selection.
The UTC L8312 is characterized by its two independent channels
and each provides logical outputs to show status of LNB switch
polarization selection and 22 KHz tone signal.
Minimum number of external discrete components and the wide
range of supply voltage make this device suitable in Twin, Quad and
multiple feed universal LNB switch to get lower cost and minimum
PCB size.
In order to satisfy the special LNB switch model, a tighter
specification has been taken into consideration for the polarization
switch characteristics. The number of external components is also
reduced. The UTC L8312 includes separate 22K tone detection for
each channel. In addition, the built-in tone amplifier circuit is
designed to protect transient signal by an external resistor and
capacitor simply, and it also provides good bandwidth and
sensitivity.
The UTC L8312 is generally applied in multi output LNB and
multi switch.
FEATURES
* Direct Drive PIN Diode and Multiplexer IC
* High Supply Voltage
ORDERING INFORMATION
Ordering Number
L8312G-R16-R
Package
SSOP-16
SSOP-16
Packing
Tape Reel
L8312G-R16-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) R: Tape Reel
(2) R16: SSOP-16
(3) G: Halogen Free and Lead Free
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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L8312
Preliminary
TYPICAL APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
1M
(Note 1)
0.1u
(Note 2)
VCC
1k 10n
1k
S2A
S2B
S2C
S2D
VCC
CENB2
FIN2
POL2
S1A
S1B
S1C
S1D
GND
CENB1
FIN1
POL1
10n 1k
1k
0.1u(Note 3)
VPOL& Tone 4X1 Switch
0.1u(Note 3)
Note:1. Current limitation resistance
2. Required BYPASS capacitor for noise interference elimination
3. Optional BYPASS capacitor for 22KHz tone interference elimination
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L8312.PDF ] | |
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