MT7620 查看數據表（PDF） - MediaTek Inc
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MT7620 Datasheet PDF : 54 Pages
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MT7620 DATASHEET
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
Pins
Name
Type
58
FB
A
132
COMP
A
59
UGATE
A
133
LGATE
A
60
DCDC _V33D P
56
DCDC _V33A
P
54
EXT_LDO _DIG A
55
VFB_DIG
A
131
EXT_LDO _DDR A
57
VFB_DDR
A
PLL
61
APCK_V33A
P
135
APCK_V12A
P
143
BBPLL_V12A
P
70
Power
134, 6, SOC_IO _V33D P
112
84, 35, SOC_CO _V12D P
140, 51
91, 110 DDR_VREF
P
10, 93, VDD18/ VDD25 P
95, 29
18, 25 DDR_IOC
P
_V12D
122, EPHY_V33A
P
119,
117
123, EPHY_V12A
P
114
RF
Driv. Description
This pin is part of the error amplifier and provides the
reference voltage which the sampled output voltage is
compared to. A difference between these two voltages
indicates an error in the output voltage.
This pin provides the error amplifier output which
compensates for errors in the output voltage identified
using the FB pin.
Gate drive for external upper MOSFET
(Ipeak<200 mA; Iavg<20 mA)
Gate drive for external lower MOSFET
(Ipeak<200mA; Iavg<20mA)
3.3 V power supply only for gate driver of SW
(Ipeak<200 mA; Iavg<20 mA)
3.3 V analog power
(Ipeak<200 mA; Iavg<10 mA)
Connects to the base terminal of external BJT (Iavg<20 mA)
1.2 V output feedback
Connect to Base terminal of external BJT
(Iavg<20 mA)
DDR output feedback
3.3 V analog power supply for CPLL/PPLL
1.2 V analog power supply for CPLL/PPLL
1.2 V analog power supply to BB PLL
NC
3.3 V digital I/O power supply
1.2 V digital core power supply
0.9 V/1.25 V/GND reference voltage power supply for
DDR2/DDR1/SDR
1.8 V/2.5 V/3.3 V level shifter power supply for
DDR2/DDR1/SDR
1.2 V I/O core power supply for DDR and SDR
3.3 V power supply for EPHY
1.2 V power supply for EPHY
DSMT7620_V.1.3_091212
Page 20 of 54
loginid=yj.huo@z-linkelec.com,time=2012-11-23 11:46:26,ip=14.153.195.177,doctitle=MT7620_Datasheet_20121114.pdf,company=Z-Link Limited 香港瑞聯電子_RLT
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