SI5310-BMR Silicon Laboratories Inc, SI5310-BMR Datasheet - Page 19

• Manufacturer Part Number: SI5310-BMR
• Description: Clock Generators & Support Products Multiplier/Regenratr 155MHz 622MHz
• Manufacturer: Silicon Laboratories Inc
• Type: Precision Clock Multiplier/ Regenerator ICr

Specifications of SI5310-BMR

• Mounting Style: SMD/SMT
• Description/function: Precision Clock Multiplier/ Regenerator IC
• Package / Case: MLP-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5. Pin Descriptions: Si5310
3, 8, 18, and
2, 7, 11, 14
GND Pad
Pin #
9, 10
4, 5
1
6
CLKIN+, CLKIN–
REFCLK+, REF-
Pin Name
REXT
CLK–
GND
VDD
LOL
Figure 11. Si5310 Pin Configuration
Table 11. Si5310 Pin Descriptions
I/O
O
I
I
REFCLK+
REFCLK–
REXT
GND
VDD
Signal Level
See Table 2
See Table 2
4
5
1
2
3
LVTTL
2.5 V
20
GND
6
Top View
19
Rev. 1.3
7
GND
Pad
18
8
17
9
External Bias Resistor.
This resistor is used by onboard circuitry to establish
bias currents within the device. This pin must be
connected to GND through a 10 kΩ (1%) resistor.
Supply Voltage.
Nominally 2.5 V.
Supply Ground.
Nominally 0.0 V. The GND pad found on the bottom
of the 20-pin micro leaded package (see Figure 12)
must be connected directly to supply ground.
Differential Reference Clock.
The reference clock sets the initial operating fre-
quency used by the onboard PLL for clock regenera-
tion and multiplication. Additionally, the reference
clock is used as a reference in generation of the LOL
output and to bound the frequency drift of MULTOUT
when CLKIN is not present.
Loss of Lock.
This output is driven high when a divided version of
the clock multiplier output deviates from the refer-
ence clock frequency by the amount specified in
Table 4 on page 8.
Differential Clock Input.
Differential input clock from which MULTOUT is
derived.
10
16
15
14
13
12
11
PWRDN
VDD
CLKOUT+
CLKOUT–
VDD
Description
Si5310
19