參數(shù)資料
型號(hào): LNBH221PD-TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 0.75 A DUAL SWITCHING CONTROLLER, PDSO36
封裝: POWER, SO-36
文件頁(yè)數(shù): 26/29頁(yè)
文件大?。?/td> 800K
代理商: LNBH221PD-TR
Pin configuration
LNBH221
6/27
DSQOUT DiSEqC Output
Open drain output of the Tone Detector to the main
controller for
DiSEqC data decoding. It is LOW when tone is detected on the
DETIN.
523
EXTM
External Modulation
External Modulation Input. Needs DC decoupling to the AC
source. If not used, can be left open.
31
13
GND
Ground
Circuit Ground. It is internally connected to the die frame for heat
dissipation.
1, 14,
18,
19,
32,
36
1, 14,
18,
19,
32,
36
BYP
Bypass Capacitor pin Needed for internal pre regulator filtering.
34
16
VOTX
Output Port during
22KHz Tone TX
Output of the linear post regulator/modulator to the LNB. See
truth table for voltage selections.
30
12
GND
Ground
To be connected to ground.
29
11
ADDR
Address Setting
Four I2C bus addresses available by setting the Address Pin
level voltage.
33
15
Table 3.
Pin description
Symbol
Name
Function
PIN Number
Sect:
AB
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