SI5320-H-BL Silicon Laboratories Inc, SI5320-H-BL Datasheet - Page 28

• Manufacturer Part Number: SI5320-H-BL
• Description: IC CLOCK MULT SONET/SDH 63-PBGA
• Manufacturer: Silicon Laboratories Inc

Specifications of SI5320-H-BL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si5320
28
*Note: The LVTLL inputs on the Si5320 device have an internal pulldown mechanism that causes these inputs to default to a
C3–C7, E2,
F2, G2–G8
Pin #
H2
D2
logic low state if the input is not driven from an external source.
Pin Name
DBLBW
REXT
GND
Table 11. Si5320 Pin Descriptions (Continued)
GND
I/O
I*
I
Signal Level
Supply
Analog
LVTTL
Rev. 2.5
Ground.
Must be connected to system ground. Minimize the
ground path impedance for optimal performance of
the device.
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 kΩ (1%) resistor.
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.
Description