TDA9725 查看數據表（PDF） - Philips Electronics

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TDA9725

Y/C automatic adjustment processor (VHS standard)

Philips Electronics 

Philips Semiconductors

Y/C automatic adjustment processor

(VHS standard)

Product specification

TDA9725

SYMBOL

PARAMETER

CONDITIONS

MIN.

Switch: PB/TRICK/REC (pin 12)

RI

internal resistance to

40

ground

VPB

voltage range for active

3.5

playback mode

VTR

voltage range for active

1.75

trick mode

VREC

voltage range for active

0

record mode

Playback FM input (pin 13)

V13

Vi(p-p)

DC voltage

input voltage level

(peak-to-peak value)

1.7

FM AGC active

63

FM AGC not active; pin 14 HIGH −

ViBO(p-p)

boundary input voltage

fi = 3.8 MHz; pin 14 HIGH

10

(peak-to-peak value)

GDOC

DOC on level

Vi = 350 mV (p-p); fi = 3.8 MHz; −18

pins 7 and 14 HIGH

∆Ghys

DOC on/off hysteresis

Vi = 350 mV (p-p); fi = 3.8 MHz; 1

pins 7 and 14 HIGH

GEon

envelope detector

switch-on level

playback mode;

−13

0 dB = Vi = 350 mV (p-p);

fi = 3.8 MHz; pin 14 HIGH

Storage capacitor for FM AGC (pin 14; playback mode)

V14

DC voltage

AGC on

2.6

DC input voltage

AGC off

4.3

Switch LP C*/LP/SP at PAL; EP/LP/SP at NTSC (pin 15)

RI

internal resistance to

40

ground

VC

input voltage for active C* PAL

3.5

(conjugated complex

chrominance signal)

VE

input voltage for active EP NTSC

3.5

VL

input voltage for active LP

1.75

VS

input voltage for active SP

0

TYP.

50

−

−

−

2.2

200

350

−

−15

3

−10

3.1

−

50

−

−

−

−

MAX.

60

5

3

1.25

2.7

632

−

1 000

−12

5

−7

3.6

5.0

60

5

5

3

1.25

UNIT

kΩ

V

V

V

V

mV

mV

mV

dB

dB

dB

V

V

kΩ

V

V

V

V

1996 Oct 14

11

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