參數(shù)資料
型號: SI5364-H-BL
廠商: Silicon Laboratories Inc
文件頁數(shù): 24/38頁
文件大?。?/td> 0K
描述: IC CLK MULT SONET/SDH 99-PBGA
標(biāo)準(zhǔn)包裝: 168
系列: DSPLL®
類型: 時鐘發(fā)生器,扇出緩沖器(分配)
PLL:
輸入: 時鐘
輸出: CML
電路數(shù): 1
比率 - 輸入:輸出: 3:4
差分 - 輸入:輸出: 是/是
頻率 - 最大: 675MHz
除法器/乘法器: 無/是
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -20°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 99-LBGA
供應(yīng)商設(shè)備封裝: 99-BGA(11x11)
包裝: 托盤
Si5364
30
Rev. 2.5
H1
SYNCIN
I*
LVTTL
Synchronization Input for Frame Sync Clock.
Allows time alignment/realignment of the FSYNC
output clock. A rising edge on the SYNCIN input
forces alignment of the FSYNC output clock stream.
H2
DSBLFSYNC
I*
LVTTL
Disable the FSYNC Clock Output.
When high, the output driver for the FSYNC pin is
disabled.
A3
B3
FEC[0]
FEC[1]
I*
LVTTL
Forward Error Correction (FEC) Selection.
Enable or disable scaling of the input-to-output fre-
quency multiplication factor for FEC clock rate com-
patibility.
The multiplication ratios and associated frequency
ranges for the Si5364 clock outputs are set by the
FRQSEL pins associated with each clock output.
Additional scaling by a factor of either 255/238 or
238/255 can be applied to all active outputs as indi-
cated below.
The FEC[1:0] inputs are decoded as follows:
00 = No FEC scaling, FSYNC enabled.
01 = 255/238 FEC scaling for all clock outputs,
FSYNC disabled.
10 = 238/255 FEC scaling for all clock inputs,
FSYNC enabled.
11 = Reserved.
The FSYNC output is disabled when FEC[1:0] = 01.
A2
B2
BWSEL[0]
BWSEL[1]
I*
LVTTL
Bandwidth Select.
The BWSEL[1:0] pins set the bandwidth of the loop
filter within the DSPLL to 3200 Hz, 800 Hz, or
6400 Hz as indicated below.
00 = 3200 Hz
01 = 1600 Hz
10 = 800 Hz
11 = 6400 Hz
B10
CAL_ACTV
O
LVTTL
Calibration Mode Active.
Is driven high during the DSPLL self-calibration and
the subsequent initial lock acquisition period.
C7–9, D1–2,
F1–2
Rsvd_GND
LVTTL
Reserved—Tie to Ground.
Must be tied to GND for normal operation.
B6–8, C6
Rsvd_NC
LVTTL
Reserved—No Connect.
Must be left unconnected for normal operation.
Table 10. Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Level
Description
*Note:
The LVTTL inputs on the Si5364 device have an internal pulldown mechanism that causes the input to default to a logic
low state if the input is not driven from an external source.
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