TDA8501 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8501

PAL/NTSC encoder

Philips Electronics 

Philips Semiconductors

PAL/NTSC encoder

Preliminary specification

TDA8501

SYMBOL

PARAMETER

CONDITIONS

NOTCH (pin 18)

RO

output resistance

VCC

DC voltage level

Isink

maximum sink current

Chrominance output (pin 14)

Isink

Isource

RO

∆VDC

maximum sink current

maximum source current

output resistance

variation of DC voltage level

when chrominance signal is

blanked and chrominance signal is

not blanked

PAL mode; pin 17 = 0 V

VO

chrominance output voltage

(peak-to-peak) amplitude burst

ratio: chrominance

(75% RED)/burst

NTSC mode; pin 17 = 5 V

VO

chrominance output voltage

(peak-to-peak) amplitude burst

ratio: chrominance

(75% RED)/burst

carrier suppression when

input-signals are 0 V

0 dB = 1330 mV

(peak-to-peak)

phase accuracy (difference

between 0 and 90 degree carriers)

LPF

Low-pass filters

see Figs 3 and 4

BPF

Band-pass filters

see Figs 5 and 6

Vn

noise level (RMS value)

BP

burst phase; 0 degrees = phase U carrier

PAL mode

NTSC mode

α

Y + SYNC cross talk

(0 to 6 MHz)

0 dB = 1400 mV

(peak-to-peak)

MIN.

TYP. MAX. UNIT

1750

−

350

2000

2.5

−

2500 Ω

−

V

−

µA

700

−

−

µA

1000

−

−

µA

−

120

−

Ω

−

−

5

mV

480

600

720 mV

2.1

2.2

2.3

460

570

680 mV

2.1

2.2

2.3

−

37

−

dB

−

−

2

degrees

−

−

4

mV

−

±135

−

degrees

−

180

−

degrees

−

−

−60 dB

April 1993

17

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