VDD Vdd Supply
參數(shù)資料
型號(hào): SI5369-EVB
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 72/84頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR SI5369 CLK MULT
標(biāo)準(zhǔn)包裝: 1
主要目的: 計(jì)時(shí),精密時(shí)鐘
嵌入式:
已用 IC / 零件: Si5369
已供物品: 板,線纜,CD,文檔
Si5369
74
Rev. 1.0
5, 6, 15, 27,
62, 63, 76,
79, 81, 84,
86, 89, 91,
94, 96, 99,
100
VDD
Vdd
Supply
VDD.
The device operates from a 1.8, 2.5, or 3.3 V supply. Bypass
capacitors should be associated with the following VDD pins:
Pins
Bypass Cap
5, 6
0.1 F
15
0.1 F
27
0.1 F
62, 63
0.1 F
76, 79
1.0 F
81, 84
0.1 F
86, 89
0.1 F
91, 94
0.1 F
96, 99, 100
0.1 F
7, 8, 14, 18,
19, 21, 26,
28, 31, 33,
36, 38, 41,
43, 46, 54,
55, 64, 65
GND
Supply
Ground.
This pin must be connected to system ground. Minimize the
ground path impedance for optimal performance.
9C1B
O
LVCMOS
CKIN1 Invalid Indicator.
This pin performs the CK1_BAD function if CK1_BAD_PIN =1
and is tristated if CK1_BAD_PIN = 0. Active polarity is con-
trolled by CK_BAD_POL.
0 = No alarm on CKIN1.
1 = Alarm on CKIN1.
10
C2B
O
LVCMOS
CKIN2 Invalid Indicator.
This pin performs the CK2_BAD function if CK2_BAD_PIN =1
and is tristated if CK2_BAD_PIN = 0. Active polarity is con-
trolled by CK_BAD_POL.
0 = No alarm on CKIN2.
1 = Alarm on CKIN2.
11
C3B
O
LVCMOS
CKIN3 Invalid Indicator.
This pin performs the CK3_BAD function if CK3_BAD_PIN =1
and is tristated if CK3_BAD_PIN = 0. Active polarity is con-
trolled by CK_BAD_POL.
0 = No alarm on CKIN3.
1 = Alarm on CKIN3.
12
INT_ALM
O
LVCMOS
Interrupt/Alarm Output Indicator.
This pin functions as a maskable interrupt output with active
polarity controlled by the INT_POL register bit. The INT output
function can be turned off by setting INT_PIN = 0. If the ALR-
MOUT function is desired instead on this pin, set
ALRMOUT_PIN = 1 and INT_PIN =0.
0= ALRMOUT not active.
1= ALRMOUT active.
The active polarity is controlled by CK_BAD_POL. If no function
is selected, the pin tristates.
Table 10. Si5369 Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Level
Description
Note: Internal register names are indicated by underlined italics, e.g., INT_PIN. See Si5369 Register Map.
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