Si5367

Preliminary Rev. 0.3

11

71

SDI

I

LVCMOS

Serial Data In.

In SPI microprocessor control mode (CMODE = 1), this

pin functions as the serial data input.

pin is ignored.

This pin has a weak pull-down.

77

78

CKOUT3+

CKOUT3–

OMULTI

Clock Output 3.

Differential clock output. Output signal format is selected

by SFOUT3_REG register bits. Output is differential for

LVPECL, LVDS, and CML compatible modes. For CMOS

format, both output pins drive identical single-ended

clock outputs.

82

83

CKOUT1–

CKOUT1+

OMULTI

Clock Output 1.

Differential clock output. Output signal format is selected

by SFOUT1_REG register bits. Output is differential for

LVPECL, LVDS, and CML compatible modes. For CMOS

format, both output pins drive identical single-ended

clock outputs.

87

88

CKOUT5–

CKOUT5+

OMULTI

Clock Output 5.

Differential clock output. Output signal format is selected

by SFOUT5_REG register bits. Output is differential for

LVPECL, LVDS, and CML compatible modes. For CMOS

format, both output pins drive identical single-ended

clock outputs.

90

CMODE

I

3-Level

Control Mode.

1 = SPI Control Mode.

92

93

CKOUT2+

CKOUT2–

OMULTI

Clock Output 2.

Differential clock output. Output signal format is selected

by SFOUT2_REG register bits. Output is differential for

LVPECL, LVDS, and CML compatible modes. For CMOS

format, both output pins drive identical single-ended

clock outputs.

97

98

CKOUT4–

CKOUT4+

OMULTI

Clock Output 4.

Differential clock output. Output signal format is selected

by SFOUT4_REG register bits. Output is differential for

LVPECL, LVDS, and CML compatible modes. For CMOS

format, both output pins drive identical single-ended

clock outputs.

GND PAD

GND PAD

GND

Supply

Ground Pad.

The ground pad must provide a low thermal and electri-

cal impedance to a ground plane.

Table 3. Si5367 Pin Descriptions (Continued)

Pin #

Pin Name

I/O

Signal Level

Description

Note: Internal register names are indicated by underlined italics, e.g. INT_PIN. See Si5368 Register Map.