SM5170AV

NIPPON PRECISION CIRCUITS—3

PIN DESCRIPTION

SPECIFICATIONS

Absolute Maximum Ratings

Recommended Operating Conditions

Number

Name

I/O

Supply

Description

1

XIN

I

1 V

Reference frequency divider crystal oscillator connection pins. Alternatively, an external clock input can

be connected to XIN. The clock is output on XOUT. Feedback resistor built-in for AC-coupled inputs.

2

XOUT

O

1 V

3

VDD2

–

3 V

Phase comparator, charge pump and booster signal 3 V supply

4

D B

O

3 V

Booster signal output for faster locking

5D O

O

3 V

Phase comparator output pin. Built-in charge pump and tristate output means that this output can be

connected to a low-pass filter. The output polarity is preset for connection to a passive filter.

6

V S S

–

–

Ground pin

7

F I N

I

1 V

FIN input frequency divider input pin. Feedback resistor built-in for AC-coupled inputs.

8

VDD1

–

1 V

Reference frequency and FIN input frequency prescaler and counter 1 V supply

9

N C

–

–

No connection

10

L D

O

1 V

Unlock signal output pin. (Unlocke d when LOW). The function of LD can be turned OFF using the LD

input control bit (LD should be tied LOW when not used).

1 1

C L K

I

3 V

Control data clock input pin

1 2

D ATA

I

3 V

Control data input pin

1 3

L E

I

3 V

Control data latch enable signal input pin

1 4

O P R

I

3 V

P ow er-save control pin. Start when HIGH, standby mode when LOW .

1 5

N C

–

–

No connection

1 6

TEST

I

1 V

Test pin. Pull-down resistor built-in. Leave open or connect to ground for normal operation.

P arameter

Symbol

Condition

Rating

Unit

Supply voltage

VDD1

−0.3 to 2.0

V

VDD2

−0.3 to 4.6

V

Input voltage range

FIN, XIN, TEST

V

OPR, CLK, DATA, LE

V

Storage temperature range

−40 to 125

°C

P ow er dissipation

150

m W

P arameter

Symbol

Condition

Rating

Unit

Supply voltage

VDD1

0.95 to 1.2

V

VDD2

2.0 to 3.3

V

Operating temperature range

−10 to 60

°C