SI5351A-A-GMR Silicon Laboratories, SI5351A-A-GMR Datasheet - Page 64

• Manufacturer Part Number: SI5351A-A-GMR
• Description: Control: I2C; Reference Inputs: 1; Clock Outputs: 8; Input Frequency (MHz): 25/27 MHz (Xtal); Output Frequency (MHz):...
• Manufacturer: Silicon Laboratories

Si5351A/B/C
11. Si5351C Pin Descriptions (20-Pin QFN, 24-Pin QSOP)
64
Notes:
Pin Name
VDDOC
VDDOD
VDDOA
VDDOB
CLKIN
CLK0
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
INTR
GND
OEB
VDD
SCL
SDA
1. I = Input, O = Output, P = Power.
2. Input pins are not internally pulled up.
XA
XB
Center Pad
20-QFN
INTR
SDA
SCL
XA
XB
13
12
19
17
16
15
20
10
18
14
11
1
2
9
8
3
4
5
6
7
Pin Number
1
5
2
3
4
Si5351C 20-QFN
Top View
5, 8, 17, 19
GND
PAD
24-QSOP
21
20
15
14
24
23
10
12
13
18
16
22
11
6
7
3
1
9
4
2
Table 12. Si5351C Pin Descriptions
15
14
13
12
11
CLK7
VDDOD
CLK1
VDDOA
CLK0
Pin Type*
I/O
O
O
O
O
O
O
O
O
O
P
P
P
P
P
P
I
I
I
I
I
Preliminary Rev. 0.95
Input pin for external crystal.
Input pin for external crystal.
Output clock 0.
Output clock 1.
Output clock 2.
Output clock 3.
Output clock 4.
Output clock 5.
Output clock 6.
Output clock 7.
Interrupt pin. Open drain active low output, requires a pull-up
resistor greater than 1 k
I
I
PLL clock input.
Output driver enable. Low = enabled, High = disabled.
Core voltage supply pin
Output voltage supply pin for CLK0 and CLK1. See 6.2
Output voltage supply pin for CLK2 and CLK3. See 6.2
Output voltage supply pin for CLK4 and CLK5. See 6.2
Output voltage supply pin for CLK6 and CLK7. See 6.2
Ground.
2
2
C bus serial clock input. Pull-up to VDD core with 1 k
C bus serial data input. Pull-up to VDD core with 1 k
VDDOC
CLKIN
CLK5
CLK4
INTR
GND
GND
VDD
SCL
SDA
XA
XB
Si5351C 24-QSOP
1
2
3
4
5
6
7
8
9
10
11
12
Function
Top View
24
23
22
21
20
19
18
17
16
15
14
13
CLK6
CLK7
VDD0D
CLK0
CLK1
GND
VDDOA
GND
VDD0B
CLK2
CLK3
OEB