TLC2940

HIGH-PERFORMANCE CMOS VOLTAGE-CONTROLLED OSCILLATOR

SLAS244 – OCTOBER 1999

3

POST OFFICE BOX 655303

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

700 mW

. . . . . . . . . . . . . . . . . . . . . .

–20

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltage values are with respect to network GND terminals.

2. For operation above 25

°C free-air temperature, derate linearly at the rate of 5.6 mW/°C.

recommended operating conditions

PARAMETER

MIN

NOM

MAX

UNIT

Supply voltage VDD (any supply see Notes 3 and 4)

3-V operation

2.85

3

3.15

V

Supply voltage, VDD (any supply, see Notes 3 and 4)

5-V operation

4.75

5

5.25

V

Input voltage, VI (inputs except VCO IN)

0

VDD

V

Output current, IO (any output)

0

±2

mA

VCO control voltage at VCO IN

1

VDD–0.5

V

RBIAS = 1.5 kΩ

42

50

3V operation

RBIAS = 1.8 kΩ

37

47

3-V operation

RBIAS = 2.2 kΩ

33

45

Lock frequency

RBIAS = 2.7 kΩ

28

42

MHz

Lock frequency

RBIAS = 1.5 kΩ

65

75

MHz

5V operation

RBIAS = 2.4 kΩ

50

65

5-V operation

RBIAS = 3.3 kΩ

43

56

RBIAS = 4.3 k

Ω

35

50

VCO oscillation frequency setting resistor RBIAS

3-V operation

1.5

2.7

k

Ω

VCO oscillation frequency setting resistor, RBIAS

5-V operation

1.5

4.3

k

Ω

Operating free-air temperature, TA

–20

85

NOTES:

3. It is recommended that the logic supply terminal (LOGIC VDD) and the VCO supply terminal (VCO VDD) should be at the samevoltage

and separate from each other.

4. The bypass capacitor should be located as close as possible to each power supply.

5. The FREFINPUT (pin 3) and PFD OUT (pin 4) terminals are input/output terminals preset for logic function respectively. In normal

operation, the FREFINPUT shoud be tied to GND and PDF OUT should be left unconnected (open).