参数资料
型号: MAX3886ETN+T
厂商: Maxim Integrated Products
文件页数: 16/17页
文件大小: 0K
描述: IC MULTIRATE CDR SER/DES56-TQFN
标准包装: 2,500
类型: 时钟和数据恢复(CDR),多路复用器
PLL:
主要目的: 光纤网络终端(ONT)应用,千兆位无源光纤网络(GPON),宽带无源光纤网络(BPON)
输入: CML,LVDS,LVPECL
输出: CML,LVDS
电路数: 1
比率 - 输入:输出: 7:6
差分 - 输入:输出: 是/是
频率 - 最大: 622MHz,2488Mbps
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-WFQFN 裸露焊盘
供应商设备封装: 56-TQFN-EP(8x8)
包装: 带卷 (TR)
MAX3886
Multirate CDR with Integrated Serializer/Deserializer
for GPON and BPON ONT Applications
8
_______________________________________________________________________________________
Pin Description (continued)
PIN
NAME
FUNCTION
23
PDI1-
Negative Parallel Data Input 1, LVDS
24
PDI0+
Positive Parallel Data Input 0, LVDS, LSB (Last Serial Bit Out)
25
PDI0-
Negative Parallel Data Input 0, LVDS, LSB (Last Serial Bit Out)
26
BENI+
Positive Burst Enable Input, LVDS
27
BENI-
Negative Burst Enable Input, LVDS
30
RCKO+
Positive Parallel Rate Reference Clock Output, LVDS
31
RCKO-
Negative Parallel Rate Reference Clock Output, LVDS
32
PDO3+
Positive Parallel Data Output 3, LVDS, MSB (First Serial Bit In)
33
PDO3-
Negative Parallel Data Output 3, LVDS, MSB (First Serial Bit In)
34
PDO2+
Positive Parallel Data Output 2, LVDS
35
PDO2-
Negative Parallel Data Output 2, LVDS
36
PDO1+
Positive Parallel Data Output 1, LVDS
37
PDO1-
Negative Parallel Data Output 1, LVDS
38
PDO0+
Positive Parallel Data Output 0, LVDS, LSB (Last Serial Bit In)
39
PDO0-
Negative Parallel Data Output 0, LVDS, LSB (Last Serial Bit In)
40
PCKO+
Positive Parallel Clock Output, LVDS; Rate/4 or Rate/8, depending on value of MDDR pin. See
Figure 1 for timing diagram.
41
PCKO-
Negative Parallel Clock Output, LVDS; Rate/4 or Rate/8, depending on value of MDDR pin. See
Figure 1 for timing diagram.
44
FERR
FIFO Error Output, LVCMOS. A high output indicates when the FIFO read and write clocks attempt to
access the same register. Normally connected to MAC IC.
45
FRST
FIFO Reset Input, LVCMOS. A high input resets the FIFO. Normally connected to MAC IC.
47
RFCK2
Reference Clock Crystal Input. A 19.4400MHz crystal must be connected between RFCK1 and
RFCK2; or a 19.4400MHz LVCMOS clock source (capable of driving up to 10pF load) can be
connected through a 10pF
±10% series capacitor to RFCK1, RFCK2 unconnected.
48
RFCK1
Reference Clock Crystal Input. See Pin 47.
49
MDDR
Dual Data Rate Select Input, LVCMOS. A high input selects dual data rate (DDR) parallel clock
output. See Figure 1 for timing diagram.
50
MSYM
Symmetric Select Input, LVCMOS. A high input selects symmetric operation, a low input selects
asymmetric operation. See Table 2.
51
MVCO
VCO Rate Select Input, Three-State. See Table 2.
52
LOCK
PLL Lock Detector Output, LVCMOS. A high output indicates the PLL is in lock, this output can
chatter when no valid input signal is present.
54
CFIL
PLL Filter Capacitor Connection. Connect a 0.27μF ceramic capacitor (
±10%, 10V, X7R-type)
between pin 54 and pin 53.
55
TP4
Test Pin, Reserved. Connect to VCC for normal operation.
EP
Exposed Paddle. Connect to thermal and electrical ground.
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