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參數(shù)資料
| 型號(hào)： | LNBH221 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DUAL LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
| 中文描述： | 雙LNB電源與控制集成電路升壓轉(zhuǎn)換器和I2C接口 |
| 文件頁(yè)數(shù)： | 3/18頁(yè) |
| 文件大?。?/td> | 515K |
| 代理商： | LNBH221 |
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LNBH221
3/18
TABLE A: PIN CONFIGURATIONS
SYMBOL
NAME
FUNCTION
PIN NUMBER
SECT:
A
B
V
CC
Supply Input
8V to 15V supply. A 220μF bypass capacitor to GND with a
470nF (ceramic) in parallel is recommended.
External MOS switch Gate connection of the step-up
converter.
Current Sense comparator input. Connected to current
sensing resistor.
Input of the linear post-regulator. The voltage on this pin is
monitored by the internal step-up controller to keep a
minimum dropout across the linear pass transistor.
RX Output to the LNB in DiSEqC 2.0 application. See truth
table for voltage selections and description on page 5.
Bidirectional data from/to I
2
C bus.
Clock from I
2
C bus.
When the TEN bit of the System Register is LOW, this pin
will accept the DiSEqC code from the main
μ
controller.
Each section of the LNBH221 will use this code to
modulate the internally generated 22kHz carrier. Set to
GND this pin if not used.
22kHz Tone Detector Input. Must be AC coupled to the
DiSEqC bus.
Open drain output of the Tone Detector to the main
μ
controller for DiSEqC data decoding. It is LOW when
tone is detected on the DETIN.
External Modulation Input. Needs DC decoupling to the
AC source. If not used, can be left open.
Circuit Ground. It is internally connected to the die frame
for heat dissipation.
Needed for internal pre regulator filtering.
Output of the linear post regulator/modulator to the LNB.
See truth table for voltage selections.
To be connected to ground.
Four I
2
C bus addresses available by setting the Address
Pin level voltage.
8
26
GATE
External Switch Gate
7
25
SENSE
Current Sense (Input)
6
24
V
UP
Step-up Voltage
9
27
V
O
RX
Output Port during
22KHz Tone RX
Serial Data
28
10
SDA
2
20
SCL
Serial Clock
3
21
DSQIN
DiSEqC Input
4
22
DETIN
Detector In
35
17
DSQOUT DiSEqC Output
5
23
EXTM
External Modulation
31
13
GND
Ground
1, 14, 18,
19, 32, 36
34
30
1, 14, 18,
19, 32, 36
16
12
BYP
V
O
TX
Bypass Capacitor pin
Output Port during
22KHz Tone TX
Ground
Address Setting
GND
ADDR
29
33
11
15
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| LNBH221PD | 功能描述:IC LNB SUPP&CTRL DUAL 36-PWRSOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| LNBH221PD-TR | 功能描述:其他電源管理 LNB Supply/Control RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
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