參數(shù)資料
型號: SI5368C-C-GQ
廠商: Silicon Laboratories Inc
文件頁數(shù): 80/92頁
文件大?。?/td> 0K
描述: IC CLK MULTIPLIER ATTEN 100TQFP
標(biāo)準(zhǔn)包裝: 90
系列: DSPLL®
類型: 時鐘放大器,振動衰減器
PLL:
輸入: 時鐘
輸出: CML,CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 4:5
差分 - 輸入:輸出: 是/是
頻率 - 最大: 346MHz
除法器/乘法器: 無/是
電源電壓: 1.71 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-TQFP
供應(yīng)商設(shè)備封裝: 100-TQFP(14x14)
包裝: 托盤
Si5368
Rev. 1.0
81
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 ALRM-
OUT 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.
13
57
CS0_C3A
CS1_C4A
I/O
LVCMOS
Input Clock Select/CKIN3 or CKIN4 Active Clock Indicator.
Input: If manual clock selection is chosen, and if
CKSEL_PIN = 1, the CKSEL pins control clock selection and
the CKSEL_REG bits are ignored.
If CKSEL_PIN = 0, the CKSEL_REG register bits control this
function and these inputs tristate. If configured as inputs, these
pins must not float.
Output: If auto clock selection is enabled, then they serve as
the CKIN_n active clock indicator.
0 = CKIN3 (CKIN4) is not the active input clock
1 = CKIN3 (CKIN4) is currently the active input to the PLL
The CKn_ACTV_REG bit always reflects the active clock status
for CKIN_n. If CKn_ACTV_PIN = 1, this status will also be
reflected on the CnA pin with active polarity controlled by the
CK_ACTV_POL bit. If CKn_ACTV_PIN = 0, this output tristates.
16
17
XA
XB
IANALOG
External Crystal or Reference Clock.
External crystal should be connected to these pins to use inter-
nal oscillator based reference. Refer to Family Reference Man-
ual for interfacing to an external reference. External reference
must be from a high-quality clock source (TCXO, OCXO). Fre-
quency of crystal or external clock is set by the RATE pins.
Table 11. Si5368 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 Si5368 Register Map.
CS[1:0]
Active Input Clock
00
CKIN1
01
CKIN2
10
CKIN3
11
CKIN4
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