參數(shù)資料
型號: SI5320-X-BC
廠商: Electronic Theatre Controls, Inc.
英文描述: SONET/SDH PRECISION CLOCK MULTIPLIER IC
中文描述: SONET / SDH的精密時鐘倍頻集成電路
文件頁數(shù): 28/34頁
文件大?。?/td> 538K
代理商: SI5320-X-BC
Si5320
28
Rev. 2.3
C3–C7, E2,
F2, G2–G8
GND
GND
Supply
Ground.
Must be connected to system ground. Minimize the
ground path impedance for optimal performance of
the device.
H2
REXT
I
Analog
External Biasing Resistor.
Used by on-chip circuitry to establish bias currents
within the device. This pin must be connected to
GND through a 10 k
(1%) resistor.
D2
DBLBW
I*
LVTTL
Double Bandwidth
Active high input to boost the selected bandwidth
2x. When this pin is high, the loop filter bandwidth
selected on BWSEL[1:0] is doubled. When this pin
is high, FXDDELAY must also be high and FEC[1:0]
must be 00.
Table 11. Si5320 Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Level
Description
*Note:
The LVTLL inputs on the Si5320 device have an internal pulldown mechanism that causes these inputs to default to a
logic low state if the input is not driven from an external source.
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