參數(shù)資料
型號(hào): 78Q2133R/F
廠商: Maxim Integrated Products
文件頁數(shù): 22/38頁
文件大?。?/td> 0K
描述: TXRX 10/100 MDIX 3.3V IND 32-QFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: PHY 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 4/4
規(guī)程: IEEE 802
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 帶卷 (TR)
DS_21x3_001
78Q2123/78Q2133 Data Sheet
Rev. 1.6
29
4.6.3
100BASE-TX System Timing
System timing requirements for 100BASE-TX operation are listed in Table 24-2 of Clause 24 of IEEE
802.3.
Parameter
Condition
Nom
Unit
TX_EN Sampled to first bit of “J” on MDI
output
12
BT
First bit of “J” on MDI input to CRS assert
16
BT
First bit of “T” on MDI input to CRS
de-assert
23
BT
First bit of “J” on MDI input to COL assert
20
BT
First bit of “T” on MDI input to COL
de-assert
24
BT
TX_EN Sampled to CRS assert
RPTR = low
6
BT
TX_EN sampled to CRS de-assert
RPTR = low
6
BT
4.6.4
10BASE-T System Timing
Parameter
Condition
Min
Nom
Max
Unit
TX_EN (MII) to TD Delay
6
BT
RD to RXD at (MII) Delay
6
BT
Collision delay
9
BT
SQE test wait
1
s
SQE test duration
1
s
Jabber on-time*
20
150
ms
Jabber off-time*
250
750
ms
* Guarantee by design. The specifications in the following table are included for information only.
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