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参数资料
| 型号： | LNBP10SP |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封装： | POWER, SO-10 |
| 文件页数： | 1/18页 |
| 文件大小： | 204K |
| 代理商： | LNBP10SP |
LNBP10 SERIES
LNBP20
LNB SUPPLY AND CONTROL VOLTAGE
REGULATOR (PARALLEL INTERFACE)
September 1998
s
COMPLETE INTERFACE FOR TWO LNBs
REMOTE SUPPLY AND CONTROL
s
LNB SELECTION AND STAND-BY FUNCTION
s
BUILT-IN TONE OSCILLATOR FACTORY
TRIMMED AT 22KHz
s
FAST OSCILLATOR START-UP
FACILITATES DiSEqC
ENCODING
s
TWO SUPPLY INPUTS FOR LOWEST
DISSIPATION
s
BYPASS FUNCTION FOR SLAVE
OPERATION
s
LNB SHORT CIRCUIT PROTECTION AND
DIAGNOSTIC
s
AUXILIARY MODULATION INPUT EXTENDS
FLEXIBILITY
s
CABLE LENGTH COMPENSATION
s
INTERNAL OVER TEMPERATURE
PROTECTION
s
BACKWARD CURRENT PROTECTION
DESCRIPTION
Intended for analog and digital satellite receivers,
the LNBP is a monolithic linear voltage regulator,
assembled in Multiwatt-15, PowerSO-20 and
PowerSO-10, specifically designed to provide the
powering voltages and the interfacing signals to
the LNB downconverter situated in the antenna
via the coaxial cable. Since most satellite
receivers have two antenna ports, the output
voltage of the regulator is available at one of two
logic-selectable output pins (LNBA, LNBB). When
the IC is powered and put in Stand-by (EN pin
LOW), both regulator outputs are disabled to
allow
the
antenna
downconverters
to
be
supplied/controlled by others satellite receivers
sharing the same coaxial lines. In this occurrence
the device will limit at 3 mA (max) the backward
current that could flow from LNBA and LNBB
output pins to GND.
For slave operation in single dish, dual receiver
systems, the bypass function is implemented by
an electronic switch between the Master Input pin
(MI) and the LNBA pin, thus leaving all LNB
powering and control functions to the Master
Receiver. This electronic switch is closed when
the device is powered and EN pin is LOW.
The regulator outputs can be logic controlled to
be 13 or 18 V (typ.) by mean of the VSEL pin for
remote controlling of LNBs. Additionally, it is
possible to increment by 1V (typ.) the selected
voltage value to compensate the excess voltage
drop along the coaxial cable (LLC pin HIGH).
In order to reduce the power dissipation of the
device when the
lowest output
voltage is
selected, the regulator has two Supply Input pins
VCC1
and
VCC2.
They
must
be
powered
respectively at 16V (min) and 23V (min), and an
internal switch
automatically will
select the
suitable supply pin according to the selected
output voltage. If adequate heatsink is provided
and higher power losses are acceptable, both
supply pins can be powered by the same 23V
source
without
affecting
any
other
circuit
performance.
The ENT (Tone Enable) pin activates the internal
oscillator so that the DC output is modulated by a
±0.3 V, 22KHz (typ.) square wave. This internal
oscillator is factory trimmed within a tolerance of
±2KHz, thus no further adjustments neither
external components are required.
A burst coding of the 22KHz tone can be
Multiwatt-15
1
10
PowerSo-20
PowerSO-10
1/18
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LNBP10SP-TR | 功能描述:线性稳压器 - 标准 LNBP voltage reg RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| LNBP11 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LNB SUPPLY AND CONTROL VOLTAGE REGULATOR PARALLEL INTERFACE |
| LNBP11LPUR | 功能描述:线性稳压器 - 标准 LNB SUP/CTRL VLT REG RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| LNBP11SP | 制造商:STMicroelectronics 功能描述:REG STD LIN SELECTABLE POS 13V/18V 0.8A 12PIN(10+2TAB) PWRSO - Rail/Tube |
| LNBP11SP-TR | 功能描述:线性稳压器 - 标准 LNBP voltage reg RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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