TDA9725 datasheet(21/44 Pages) PHILIPS

21 / 44 page

1996 Oct 14

Philips Semiconductors

Product speciﬁcation

Y/C automatic adjustment processor

(VHS standard)

TDA9725

CHROMINANCE FILTER CHARACTERISTICS

Table 2

Low-pass ﬁlter 630 kHz; frequency response pin 33 to pin 28

Table 3

Band-pass ﬁlter 4.43 MHz at record mode; frequency response pin 43 to pin 35

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

PAL; NTSC/REC

∆G1

frequency response 1

G(1 MHz)/G(0.2 MHz)

−4

−3

−2dB

∆G2

frequency response 2

G(1.5 MHz)/G(0.2 MHz)

−9

−7

−5dB

∆G3

frequency response 3

G(2 MHz)/G(0.2 MHz)

−10

−14

−18

∆G4

frequency response 4

G(3 MHz)/G(0.2 MHz)

−−−25

∆G5

frequency response 5

G(4.43 MHz)/G(0.2 MHz)

−−−40

∆G7

frequency response 7

G(9.5 MHz)/G(0.2 MHz)

−−−35

group delay 1

fi = 0.63 MHz

295

335

375

SECAM; REC

∆G2

frequency response (2)

G(1.5 MHz)/G(0.2 MHz)

−5

−3

−1dB

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

PAL; NTSC/REC

∆G1

frequency response 1

G(<2.7 MHz)/G(4.43 MHz)

−−−22

∆G2

frequency response 2

G(2.7 MHz)/G(4.43 MHz)

−−−30

∆G3

frequency response 3

G(3.93 MHz)/G(4.43 MHz)

−3.8

−2.8

−1.8

∆G4

frequency response 4

G(4.93 MHz)/G(4.43 MHz)

−2.5

−1.5

−0.5

∆G5

frequency response 5

G(6.2 MHz)/G(4.43 MHz)

−−−30

∆G6

frequency response 6

G(>6.2 MHz)/G(4.43 MHz)

−−−15

group delay 1

fi = 4.43 MHz

410

450

490

SECAM; REC

∆G7

frequency response 7

G(5.7 MHz)/G(4.43 MHz)

−−−25

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