CDCM61004

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SCAS871E – FEBRUARY 2009 – REVISED JULY 2010

PIN FUNCTIONS

TERMINAL

NAME

PAD NO.

TYPE

DESCRIPTION

VCC_OUT

1, 4, 27, 30

Power

3.3-V supply for the output buffers

VCC_PLL1

18

Power

3.3-V supply for the PLL circuitry

VCC_PLL2

16

Power

3.3-V supply for the PLL circuitry

VCC_VCO

9

Power

3.3-V supply for the internal VCO

VCC_IN

20

Power

3.3-V supply for the input buffers

GND1

22

Ground

Additional ground for device. (GND1 shorted on-chip to GND)

GND

Pad

Ground

Ground is on thermal pad. See Thermal Management .

XIN

21

Input

Parallel resonant crystal or LVCMOS inputs

OUTP0,

6, 5

Output

Differential output pair or two single-ended outputs

OUTN0

OUTP1,

3, 2

Output

Differential output pair or two single-ended outputs

OUTN1

OUTP2,

32, 31

Output

Differential output pair or two single-ended outputs

OUTN2

OUTP3,

29, 28

Output

Differential output pair or two single-ended outputs

OUTN3

OSC_OUT

23

Output

Bypass LVCMOS output

Capacitor for internal regulator (connect to a 10-mF Y5V capacitor to

REG_CAP1

19

Output

GND)

Capacitor for internal regulator (connect to a 10-mF Y5V capacitor to

REG_CAP2

17

Output

GND)

PR1, PR0

26, 25

Input

Pull-up

Prescaler and Feedback divider control pins (see Table 4)

OD2, OD1,

15, 14, 13

Input

Pull-up

Output divider control pins (see Table 5)

OD0

OS1, OS0

10, 11

Input

Pull-up

Output type select control pin (see Table 6)

CE

7

Input

Pull-up

Chip enable control pin (see Table 7)

RSTN

12

Input

Pull-up

Device reset (active low) (see Table 8)

NC

8, 24

No connection

(1)

Pull-up and Pull-down refer to internal input resistors; see Table 1, Pin Characteristics for typical values.

Table 1. PIN CHARACTERISTICS

SYMBOL

PARAMETER

MIN

TYP

MAX

UNIT

Input capacitance

8

10

pF

Input pull-up resistor

150

k

Ω

Input pull-down resistor

150

k

Ω

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Product Folder Link(s): CDCM61004