SM5050A

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

Single-output Clock Generator IC

OVERVIEW

The SM5050A is a single-output clock generator IC that generates standard high-frequency clocks derived

from a 20 to 40MHz crystal oscillator master clock. The high-frequency output stage uses optimized PLL cir-

oscillator by just the connection of a crystal. Two program inputs allows selection from 4 frequency multipli-

ers, making the SM5050A able to generate multi-standard frequency clock outputs.

FEATURES

s

2.7 to 3.6V operating supply voltage

s

20 to 40MHz master clock frequency (fundamen-

tal)

s

Output frequency ranges

s

8mA output drive capability

s

s

100ps (typ) low jitter output (peak-to-peak)

s

2 program inputs for 4 selectable multiplier ratios

s

Standby function

s

Packaging

• Chip form (CF5050A)

• 8-pin VSOP package (SM5050AV)

PINOUT

ORDERING INFORMATION

PAD DIMENSIONS

PACKAGE DIMENSIONS

(Top view )

D e vice

P a ck ag e

CF5050A–1

Chip form

SM5050AV

8-pin VSOP

1

P1

2

VSS

3

Q

4

VDD

5

XTN

6XT

7

INHN

8P0

(Unit: µm)

Chip size: 2.16

× 1.57mm

Chip thickness: 300 ± 30µm

(Unit: m m )

Q

VDD

XTN

VSS

(0,0)

(2160,1570)

INHN

XT

SA5050A

VDDQ

VSSQ

P1

P0

0.575 typ

3.1

± 0.3

0.22

± 0.1

0.65

0.10

0 to 10

0.15

+0.1

−0.05