LM1292 datasheet(2/10 Pages) NSC

2 / 10 page

Absolute Maximum Ratings (Notes 1, 3)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage

14V

Input Voltage, V

Pin 14

Pin 24

Pins 5, 6

Pins 8, 28

Pins 2, 9, 12, 13, 15, 18

1.3V < V

IN < 7.2V

10V

Power Dissipation (P

2.5W

(Above 25˚C, derate based on

JA and TJ)

Thermal Resistance (

JA)

50˚C/W

Junction Temperature (T

150˚C

ESD Susceptibility (Note 5)

2 kV

Storage Temperature

−65˚C to +80˚C

Lead Temperature

(Soldering 10 sec.)

265˚C

Operating Ratings (Note 2)

Operating Temperature Range

−20˚C to +80˚C

Supply Voltage

10.8V

≤ V

CC ≤ 13.2V

Electrical Characteristics See Test Circuit (Figure 2); T

A = 25˚C; VCC = 12V; V14 = 0V; V15 = 0V unless

otherwise stated

Parameter

Conditions

Typical

(Note 6)

Limit

(Note 7)

Units

Supply Current

(max)

Minimum Composite Video

Input Amplitude (Pin 9)

Cap Coupled (0.01 µF), Sync Tip to

Black Level

0.14

DC Clamp Level, Composite Video Input

2.0

Clamp Charging Current, Composite

Video Input

6mA

Minimum H/HV Sync Input Amplitude

(Pin 12)

Cap Coupled, 10% Duty Cycle (Note 8)

1.0

Minimum V Sync Input Amplitude (Pin 8)

Cap Coupled, 1% Duty Cycle

1.0

High Level Output Voltage V

OH (Pins 10,

16)

OH = −100 µA

4.3

3.8

V (Min)

Low Level Output Voltage V

OL (Pins 10,

16)

OL = 1.6 mA

0.25

0.4

V (Max)

Video Mute Low Level Output Voltage

(Pin 4)

OL = 2mA

0.4

V (Max)

Mute Detection Voltage Threshold

∆V, | FVC Cap 1 - FVC Cap 2 | for Mute

Output Low

100

Flyback Input Threshold (Pin 18)

Positive Going Flyback Pulse

1.4

Under-Voltage Lockout (Pin 7)

CC Below Threshold: H Drive Output

Open (Unlatched)

10.8

Frequency to Voltage Gain

22 kHz

≤ f

H ≤ 125 kHz

0.047

V/kHz

VCO Gain Constant

VCO = 100 kHz

1.34 x 10

Rad/s/V

PD1 Phase Detector Gain Constant

VCO = 100 kHz

130

µA/Rad

VCO = 60 kHz

78.1

VCO = 22 kHz

28.6

Frequency to Voltage Linearity

22 kHz

≤ f

H ≤ 125 kHz

1.0

VCO Linearity

22 kHz

≤ f

VCO ≤ 125 kHz

1.0

Jitter

H = 30 kHz (Note 9)

H = 60 kHz

3.25

1.45

ns p-p

H = 100 kHz

H = 125 kHz

895

763

ps p-p

H Drive Duty Cycle Control Gain

13 = 0V– 4V; 30%–70% Allowed

0.11

H/V

H Drive Phase Control Gain

24 = 1.5V– 7V (Note 10)

˚/V

PD1 Phase Detector Leakage Current

+ VCO Input Bias Current (Pin 28)

1µA

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