|
|
ZLNB2013のメーカーはZetex Semiconductorsです、この部品の機能は「DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER」です。 |
部品番号 | ZLNB2013 |
| |
部品説明 | DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER | ||
メーカ | Zetex Semiconductors | ||
ロゴ | |||
このページの下部にプレビューとZLNB2013ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
www.DataSheet4U.com
ZLNB2013
DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER
DESCRIPTION
The ZLNB2013 dual polarization and tone switch
controller is one of a wide range of satellite receiver
LNB support circuits available from Zetex. It features
two completely independent channels, each providing
logic outputs to control LNB polarization selection,
local oscillator selection and down feed disable. It is
intended for use in Twin, Quad and multiple feed
Universal LNBs, replacing many discrete components
to save both manufacturing cost and PCB size, whilst
improving reliability.
Universal LNB local oscillator selection is achieved by
detection of a low level AC voltage superimposed on
the polarization control voltage. To facilitate this
function, the ZLNB2013 includes a separate tone
detector for each channel. Control of detector
bandwidth and sensitivity is provided using an external
resistor and capacitor for each channel. The tone
detector has been designed to give excellent rejection
of low frequency control signals and DiSEqC™ tone
bursts.
The two polarization control inputs of the ZLNB2013
have a threshold voltage of 14.75V to meet the
switching requirement of 14.0V to 15.5V. To minimize
drift both thresholds are temperature compensated.
Each features a low and stable input current that
enables threshold trimming and transient protection to
be achieved with the addition of only a single resistor
per channel.
Multi feed LNBs can be called to operate with one or
more of their controlling receivers powered
down/disconnected, with attendant cable mismatch
problems. To ease design for this situation, each
polarization input of the ZLNB2013 has a second
threshold set at 9V. An input voltage below this
threshold indicates “receiver not present” and
switches the relevant control channels high. This logic
output can be used to disable the associated down feed
driver, eliminating any problems due to cable
mismatch.
The ZLNB2013 has been specifically designed to
minimize the solution cost whilst being flexible. The
ZLNB2013 only requires two external components per
channel to give full user control and functionality. The
ZLNB2013 also includes complimentary outputs so
that it can directly drive many multiplexer ICs without
the need of an inverter. Any unused outputs can be left
open circuit without any effect to the remaining
circuits. Polarization switch and tone detector outputs
can directly drive TTL and CMOS logic, pin diodes,
IF-amp supply switching and multiplexer ICs.
The ZLNB2013 operates from a single supply which can
be anything from 5-8V. Its quiescent current is typically
only 9mA and this does not change significantly with
load or logic state. It is available in the space saving
QSOP16 surface mount package.
FEATURES
• Dual polarization and tone switch
• Temperature compensated polarization switches
• Reduced cost solution, only 2 external components
per channel
• Low frequency and DiSEqC™ control signals
rejection
• Eliminates many close tolerance discrete
components
• Wide supply operating range
• Multiplexer IC direct drive
• Low quiescent current
• Tone and pol. outputs are TTL, CMOS, pin diode and
IF amp capable
• Transient resistant inputs
APPLICATIONS
• Twin Universal LNB’s
• Includes receiver-off detector
• User adjustable filter centre frequency and
bandwidth
• Quad Universal LNB’s
• Multi Feed Universal LNB’s
• LNB switch boxes
ISSUE 1 - AUGUST 2005
1
1 Page www.DataSheet4U.com
ZLNB2013
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):
Tamb= 25ЊC,VCC=5V
SYMBOL PARAMETER
VVHIGH
VVLOW
VVHIGH
VVLOW
TD 1,2 Outputs
Voltage high
Voltage Low
BTD 1,2 Outputs
Voltage high
Voltage Low
CONDITIONS
LIMITS
UNITS
Min. Typ. Max.
ITD 1,2=-100A, Test Circuit 1,
Tone enabled
ITD 1,2=5mA, Test Circuit 1, Tone
disabled
VCC-1.0
0
VCC-0.7
0.3
VCC
0.5
V
V
IBTD 1,2=-100A, Test Circuit 1,
Tone disabled
IBTD 1,2=5mA, Test Circuit 1,
Tone enabled
VCC-1.0 VCC-0.7 VCC
0 0.3 0.5
V
V
Note:
1) The parameters Filter Amplifier VOUT, IOUT, Rectifier VOUT and Comparator Threshold Voltage are all directly
(linearly) related to Vcc.
2) Applied via 2.2k resistors
3) These parameters are linear related to VCC
ISSUE 1 - AUGUST 2005
3
3Pages www.DataSheet4U.com
ZLNB2013
APPLICATION CIRCUIT EXAMPLES
The following circuit shows the additional components that will be used for polarisation mode and 22kHz tone
detection in typical ZLNB2013 application (ZLNB2013 Pinout for QSOP16 package designator - Q16).
ZLNB2013 PINOUT FOR QSOP16
PACKAGE DESIGNATOR - Q16
1
BTD2
TD2
BHOR2
HOR2
ENA2
GND
FIN2
VPOL2
BTD1
TD1
BHOR1
HOR1
VCC
ENA1
FIN1
VPOL1
ORDERING INFORMATION
Part number
Package
ZLNB2013Q16
QSOP16
Part mark
ZLNB2013
SAMPLE ORDERING INFORMATION
Part number
Package
Part mark
#ZLNB2013Q16
QSOP16
ZLNB2013
ISSUE 1 - AUGUST 2005
6
6 Page | |||
ページ | 合計 : 8 ページ | ||
|
PDF ダウンロード | [ ZLNB2013 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
ZLNB2010 | DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER | Zetex Semiconductors |
ZLNB2012 | DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER | Zetex Semiconductors |
ZLNB2013 | DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER | Zetex Semiconductors |
ZLNB2015 | ADVANCED DBS DUAL CHANNEL VOLTAGE AND TONE DETECTOR | Diodes Incorporated |