ICS627-01

HDTV Set-Top Clock Source

MDS 627-01 B

3

Revision 051600

Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126•(408) 295-9800tel • www.icst.com

PRELIMINARY INFORMATION

Parameter

Conditions

Minimum

Typical

Maximum

Units

ABSOLUTE MAXIMUM RATINGS (n

note 1)

Supply voltage, VDD

Referenced to GND

7

V

Inputs and Clock Outputs

Referenced to GND

-0.5

VDD+0.5

V

Ambient Operating Temperature

0

70

°C

Soldering Temperature

Max of 10 seconds

260

°C

Storage temperature

-65

150

°C

DC CHARACTERISTICS (VDD = 3.3V

V unless noted)

Operating Voltage, VDD

3.15

3.30

3.45

V

Input High Voltage, VIH

2

V

Input Low Voltage, VIL

0.8

V

Input High Voltage, VIH, ICLK and CLKIN

(VDD/2)+1

VDD/2

V

Input Low Voltage, VIL, ICLK and CLKIN

VDD/2

(VDD/2)-1

V

Output High Voltage, VOH

IOH=-12mA

2.4

V

Output Low Voltage, VOL

IOL=12mA

0.4

V

Output High Voltage, VOH, CMOS level

IOH=-8mA

VDD-0.4

V

Operating Supply Current, IDD

No Load, note 2

TBD

mA

Short Circuit Current

Each output

±50

mA

Input Capacitance

7

pF

Frequency synthesis error

All clocks

0

ppm

AC CHARACTERISTICS (VDD = 3.3V

V unless noted)

Input Frequency

27.0

MHz

Output Clock Rise Time

0.8 to 2.0V

1.5

ns

Output Clock Fall Time

2.0 to 0.8V

1.5

ns

Output Clock Duty Cycle

At VDD/2

40

60

%

Maximum Absolute Jitter, short term

TBD

ps

Electrical Specifications

Notes:

1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged

exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.

2. With all clocks at highest MHz.

The ICS627-01 requires a minimum number of external components for proper operation. Use a low

inductance ground plane, connect all GNDs to this. Connect 0.01µF decoupling caps across pins 5 and 10, 8

and 10, and 22 and 20, as close to the ICS627-01 as possible. A series termination resistor of 33

Ω may be

used for each clock output. The 27.000 MHz crystal must be connected as close to the chip as possible. The

crystal should be a fundamental mode, parallel resonant. Crystal capacitors should be connected from pins X1

caps should be used. If a clock input is used, drive it into X1 and leave X2 unconnected.

External Components