![](http://datasheet.mmic.net.cn/330000/MP7686JD_datasheet_16441490/MP7686JD_6.png)
03
5HY
7+(25< 2) 23(5$7,21
7KH 03 KDV WKUHH RSHUDWLQJ PRGHV ,W KDV WZR SLSHOLQHG
PRGHV 03 FRPSDWLEOH DQG D RQH VKRW PRGH 7KH YROW
DJHVDSSOLHGWRWKH3KDVH DQG0RGH SLQVGHWHUPLQH WKHRSHUDW
LQJ PRGH
)LJXUHV WKURXJK
7LPLQJ SDUDPHWHUV DUH PHDVXUHG WR DQG IURP YDOLG ORJLF OHYHOV
LH W
'+
LV WKH WLPH IURP &/. 9 WR '$7$ RU 9
VKRZ WKH WLPLQJ VSHFLILFDWLRQV
3LSHOLQH 0RGHV 0RGH +LJK
,Q WKLV FRQILJXUDWLRQ WKH 03 ZRUNV LQ D FRQWLQXRXV IDVKLRQ
03 FRPSDWLEOH
)LJXUH
3KDVH SLQ KLJK DQG ORZ :KHQ 3KDVH LV ORZ′VDPSOLQJμ RFFXUV
GXULQJWKHORZSHULRGRIWKHFORFNDQG′EDODQFLQJμGXULQJWKHKLJK
SHULRG
:KHQ 3KDVH LV KLJK RSHUDWLRQ LV UHYHUVHG VHH
)LJXUH
′VDPSOLQJμ RFFXUV GXULQJ WKH KLJK SHULRG DQG ′EDO
DQFLQJμGXULQJWKHORZSHULRG 7KHDFWXDO WLPHZKHQ WKHLQWHUQDO
FRPSDUDWRUVDUHFRQQHFWHGWR9
,1
LVFDOOHGWKH$FTXLVLWLRQ7LPH
7KLV WLPH LV HTXDO WR WKH VDPSOH SKDVH RI WKH H[WHUQDO FORFN GH
OD\HG E\ W
$'
DQG W
$3
VKRZV WKH WLPLQJ ZLWK WKH
)LJXUH 3LSHOLQH 0RGH 7LPLQJ FRPSDWLEOH
3KDVH 0RGH
%DODQFH
6DPSOH
%DODQFH
6DPSOH
1
6DPSOLQJ :LQGRZ
1
1
&/.
'$7$
W
6
&/.
'$7$
%DODQFH
6DPSOH
%DODQFH
6DPSOH
1
6DPSOLQJ :LQGRZ
1
)LJXUH 3LSHOLQH 0RGH 7LPLQJ 03 FRPSDWLEOH
3KDVH 0RGH
1
1
7
6
)
6
W
$'
W
$3
9
,1
W
6
W
+/'
W
'/
7
6
)
6
W
$'
W
$3
9
,1
W
'/
W
+/'
7KH 03 FRQYHUWV DQDORJ YROWDJHV LQWR GLJLWDO FRGHV E\
HQFRGLQJ WKH RXWSXWV RI FRPSDUDWRUV $ FRPSDUDWRU LV XVHG WR
JHQHUDWH WKH RYHUIORZ ELW 7KH FRQYHUVLRQ LV V\QFKURQRXV ZLWK
WKHVDPSOHFORFN$FRPSOHWHFRQYHUVLRQF\FOH LVDFFRPSOLVKHG
LQ F\FOHV 'DWD LV WUDQVIHUUHG IURP WKH FRPSDUDWRU ODWFKHV WR
WKH RXWSXW UHJLVWHU HDFK F\FOH DQG DW WKH VDPH WLPH WKH LQSXW LV
VDPSOHG
7KH FORFN VLJQDO JHQHUDWHV WKH WZR LQWHUQDO SKDVHV
I
% &/.
KLJK EDODQFH DQG
I
6 &/. ORZ VDPSOH 3KDVH % FRQQHFWV
WKH FRPSDUDWRUV WR WKH UHIHUHQFH WDS SRLQWV 3KDVH 6 FRQQHFWV
WKH FRPSDUDWRUV WR WKH DQDORJ LQSXW YROWDJH
7KH UHIHUHQFH UHVLVWDQFH ODGGHU LV D VHULHV RI UHVLVWRUV 7KH
ILUVW DQG WKH ODVW UHVLVWRUV RI WKH ODGGHU DUH KDOI WKH YDOXH RI WKH
RWKHUV VR WKDW WKH IROORZLQJ UHODWLRQV DSSO\
5
5()
5
9
5()
9
5()
9
5()
/6%
)LJXUH ,GHDO$'7UDQVIHU)XQFWLRQ
',*,7$/
&2'(6
/6%
2):
9
/6%
/6%
2):
/6%
)LJXUH 5HDO $' 7UDQVIHU &XUYH
',*,7$/
&2'(6
/6%
(
(
9
/6%
=6
)6
9
5()
9
9
9
9
9
2):
9
5()
9
5()
9
9
9
9
9
5()
)RU 03 WKH RYHUIORZ IODJ LV LGHDOO\ VHW DW
9
2):
9
5()
7KXV WKH ILUVW DQG ODVW WUDQVLWLRQ RI WKH GDWD ELWV WDNH SODFH DW
/6%
9
,1
9
9
5()
/6%
9
,1
9
/6% 9
9
5()
9
/6%
03 DOVR KDV ]HUR VFDOH DQGIXOO VFDOHHUURUV ZKLFKLQGLFDWH
WKH GHYLDWLRQV IURP WKH LGHDO LQLWLDO DQG ILQDO WUDQVLWLRQV WKXV WKH