Si5350B
Rev. 0.9 17
5. Pin Descriptions (20-QFN, 24-QSOP)
Pin Name Pin Number Pin Type* Function
QFN-20 QSOP-24
XA 1 6 I Input pin for external XTAL
XB 2 7 I Input pin for external XTAL
VC 3 9 I VCXO control voltage input
CLK0 13 21 O Output clock 0
CLK1 12 20 O Output clock 1
CLK2 9 15 O Output clock 2
CLK3 8 14 O Output clock 3
CLK4 19 3 O Output clock 4
CLK5 17 1 O Output clock 5
CLK6 16 24 O Output clock 6
CLK7 15 23 O Output clock 7
P0 4 10 I User configurable input pin 0
P1 5 11 I User configurable input pin 1
P2 6 12 I User configurable input pin 2
P3 7 13 I User configurable input pin 3
VDD 20 4 P Core voltage supply pin
VDDOA 11 18 P Output voltage supply pin for CLK0 and CLK1
VDDOB 10 16 P Output voltage supply pin for CLK2 and CLK3
VDDOC 18 2 P Output voltage supply pin for CLK4 and CLK5
VDDOD 14 22 P Output voltage supply pin for CLK6 and CLK7
GND Center Pad 5, 8, 17, 19 P Ground
*Note: Pin Types: I = Input, O = Output, P = Power.
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
20
19
18
17
16
GND
PAD
XA
XB
VC
P0
P1
P3
CLK3
CLK2
VDDOB
P2
Si5350B 20-QFN
Top View
CLK6
CLK5
VDDOC
CLK4
VDD
VDDOA
CLK1
CLK0
VDDOD
CLK7
2
1
4
3
6
5
8
7
10
9
12
11
23
24
21
22
19
20
17
18
15
16
13
14
Si5350B 24-QSOP
Top View
CLK7
CLK6
CLK0
VDD0D
GND
CLK1
GND
VDDOA
CLK2
VDD0B
P3
CLK3
VDDOC
CLK5
VDD
CLK4
XA
GND
GND
XB
P0
VC
P2
P1
