M61251AFP datasheet(5/16 Pages) RENESAS

5 / 16 page

M61251AFP

Rev.1.0, Sep.22.2003, page 5 of 15

Electrical characteristics (cont)

Function

Block

Parameter

Specification (typ.)

Pin no.

Condition

Video switch

TV / EXT crosstalk

–55dB

at 5 MHz

Center frequency

3.58 MHz

Suppression at subcarrier

frequency (fsc)

–30dB

Suppression at fsc+/-100 kHz

–25dB

Suppression at fsc+/-500 kHz

–10dB

Chroma trap

Trap fine adjustment

–

2C: 2bits

Delay time

125 ns

Peak frequency for emphasis

2.5 MHz

Video tone

Control range

–2.5 to +10dB

–

2C: 6 bits

Delay-time adjustment

125 / 250 / 400 / 550nsec

2C: 2 bits

Delay line

Delay fine adjustment

0 / 80nsec

–

2C: 1 bit

Start Point

60 I RE

End Stop

8 IRE

Black stretch

Max. effect

6dB (25 IRE)

–

Gain

6dB

Y SW OUT

Y SW LPF cut-off frequency

700 KHz

2C “Y SW LPF” : 1

Video

Video mute

Mute suppression (Y)

–45dB

14. 15.

Center frequency

3.58 MHz

Chroma BPF

2 - MHz suppression

–22 dB

–

ACC range

+6 to –22 dB

ACC

Overload

chroma 169%

–

3.579545 MHz

14, 15,

fsc out 1 level - 1

1Vpp

Pin25 CLK CONT :

High

VCXO

fsc out 1 level - 2

OFF

Pin25 CLK CONT :

Low

APC

Pull - IN

+ / –600 Hz

14, 15,

APC Filter

µF+4.7K//0.015µF

Color killer level

–45dB

Color killer

detector

Suppression

–40dB

–

Tint control

+/- 45deg

2 C 7bit

Demodulation angle

103deg / 95deg

2 C”C Angle 95”

Carrier leakage

–40dB

Chroma

Demodulator

Demodulation ratio

(B - Y) : (R –Y) = 1:0.55

–

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