—8—

CXA3218N

AC Characteristics (Video)

31

32

33

34

Item

IF

→ DET output DG

IF

→ DET output DP

fsc beat suppression level

IF

→ DET output S/N

Pin

7

7

7

7

Symbol

DGA

DPA

IMA

CSN

Conditions

IF input

IF input

IF input

IF input

Min.

Typ.

Max.

Unit

0

0.3

1.5

%

–2

0

2

deg

40

45

—

dB

55

60

—

dB

AC characteristics (AFT)

42

43

44

45

Item

AFT offset adjustment

sensitivity

AFT dead zone width

AFTUP/AFTDOWN Low

AFTUP/AFTDOWN High

Pin

6

10, 11

10, 11

Symbol

fAFT/V

fAFT/D

AFTL

AFTH

Conditions

f0 variation/Pin 6 DC variation

Min.

Typ.

Max.

Unit

5

8

12

MHz/V

60

180

360

kHz

0

0.1

0.4

V

4.7

4.9

AGC Characteristics (PLL)

21

22

23

24

25-1

25-2

26

27

Item

VCO variation sensitivity

VCO oscillation frequency

PLL capture range

DETOUT level

DETOUT level variable

range 1

DETOUT level variable

range 2

GCONT adjustment

sensitivity

DETOUT frequency

response (8 MHz)

Pin

7

7

7

7

7

Symbol

β

fosc

CAP

VOUT

VPdB

VMdB

∆ VOUT

VOUTf

Conditions

Sum of positive/negative

polarities

Dev.=17 MHzpp, Pin 9=2.7 V

VOUT=0 dB, Pin 9=+0.5 V

VOUT=0 dB, Pin 9=–0.5 V

Output level/Pin 9 DC

variation

8 MHz/1 MHz

Min.

Typ.

Max.

Unit

32

37

42

MHz/V

—

400

—

—

40

—

MHz

0.60

0.68

0.76

Vp-p

1

2

—

dB

—

–2

–1

dB

2

4

6

dB/V

–1

0

1

dB

This characteristic is for NTSC, and it works at 480 MHz for PAL.