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參數(shù)資料
| 型號： | MB3892PFF |
| 廠商： | FUJITSU LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Power Management IC for Mobile Phone |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP80 |
| 封裝： | PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 28/40頁 |
| 文件大?。?/td> | 503K |
| 代理商： | MB3892PFF |
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MB3892
28
(10) RF regulator (RFREG4)
This regulator uses the reference voltage to produce an output voltage (2.85V typ.) at RFOUT4 terminal (pin
35) when an "H" level signal is input at the RFCTL4 terminal (pin 36).
Power can be drawn from RFOUT4 terminal for external use, up to a maximum load current of 60mA.
(11) RF regulator (RFREG5)
This regulator uses the reference voltage to produce an output voltage (2.85V typ.) at RFOUT5 terminal
(RFOUT5-1 terminal (pin 30), RFOUT5-2 terminal (pin 29)) when an "H" level signal is input at the RFCTL5
terminal (pin 31).
Power can be drawn from RFOUT5 terminal for external use, up to a maximum load current of 200mA.
(12) RF regulator (RFREG6)
This regulator uses the reference voltage to produce an output voltage (2.85V typ.) at RFOUT6 terminal (pin
33) when an "H" level signal is input at the RFCTL6 terminal (pin 32).
Power can be drawn from RFOUT6 terminal for external use, up to a maximum load current of 50mA.
(13) Variable bias regulator
This regulator uses the voltage generated by VREGIN terminal (pin 67) to produce an amplified output voltage
at VREGOUT terminal (pin 68).
Power can be drawn from VREGOUT terminal for external use, up to a maximum load current of 10mA.
(14) D/A converter
D/A1 to D/A3 converter process 8 bit input signal and D/A4 converter processes 10 bit input signal.
This converter generates an output voltage (0.5 to 2.5V ) at D/AOUT1 terminal (pin 63) to D/AOUT4 terminal
(pin 60) according to the signal from serial control.
(15) Power-on reset
When the OUT1 terminal (pin 75) voltage exceeds 2.75V(typ.) , after a delay interval set by a capacitor (0.1
μ
F
typ.) connected to the CTP terminal (pin 76) , the RESET terminal (pin 77) voltage becomes "H" level from "L"
level and the reset signal is canceled.
When the OUT1 terminal voltage falls below 2.685V (typ.), the RESET terminal voltage becomes "L" level from
"H" level and the reset signal is dispatched. (refer to "
I
POWER-ON RESET TIMING DIAGRAM", "
I
SETTING
OF HOLD TIME FOR POWER-ON RESET".)
(16) Battery voltage detect
This function is to observe the battery voltage. When the VB4 terminal (pin 58) voltage exceeds 3.05V (typ.),
the 3VDET terminal (pin 56) voltage goes to "H" level and when the VB4 terminal voltage falls below 2.85V (typ.),
the 3VDET terminal goes to "L" level. (refer to
I
BATTERY VOLTAGE DETECTOR)
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參數(shù)描述 |
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