MAX4397SACTM datasheet(3/30 Pages) MAXIM

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Audio/Video Switch for Dual SCART Connectors

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ELECTRICAL CHARACTERISTICS (continued)

(V12 = 12V, VVID = VAUD = 5V, 0.1µF X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from VAUD to GNDAUD,

V12 to GNDAUD, and VVID to GNDVID, SET = 100kΩ nominal, RLOAD = 150Ω, TA = 0°C to +70°C, unless otherwise noted. Typical

values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

f = 0.1MHz to 4.43MHz

Group Delay Variation

∆GD

f = 0.1MHz to 5.5MHz

Sync-Tip Clamp Level

V_CLMP

RGB, Composite, and Luma input, no signal,

no load

1.21

Chroma Bias

V_BIAS

Chroma input only, no signal, no load

1.9

Droop

Set by input current

-2

Power-Supply Rejection Ratio

PSRR_V

DC, 0.5VP-P

CVBS, Y, or RGB video inputs, VIN > V_CLMP

4MΩ

Input Impedance

ZIN

Chroma video input, VIN = V_BIAS

kΩ

Input Clamp Current

ICLMP

VIN = 1.75V

2.5

8.0

µA

Pulldown Resistance

Enable VCR_R/C_OUT and TV_R/C_OUT

pulldown through I

2C, (see registers 7 and 9

for loading register details)

Ω

RGB, Composite, and Luma, no signal,

no load

1.08

Output Pin Bias Voltage

VOUT

Chroma, no signal, no load

2.27

Crosstalk

XTLK

Between any two active inputs, f = 4.43MHz,

VIN = 1VP-P

-50

Mute Suppression

M_SPR_V

f = 4.43MHz, VIN = 1VP-P, on one input only

-50

AUDIO CHARACTERISTICS (Note 3)

TV or VCR to stereo, gain = 0dB,

VIN = 1VP-P

-0.5

+0.5

TV or VCR to mono, gain = 0dB, VIN = 1VP-P

2.5

3.5

ENC to stereo, gain = 0dB, VIN = 1VP-P

3.02

3.52

4.02

Voltage Gain (From Application

Input)

G_A

ENC to mono, gain = 0dB, VIN = 1VP-P

6.02

6.52

7.02

Gain Matching Between

Channels

∆G_A

Gain = 0dB, VIN = 1VP-P

-0.5

+0.5

Flatness

∆A

f = 20Hz to 20kHz, 0.5VRMS input,

gain = 0dB

0.01

Frequency Bandwidth

0.5VRMS input, frequency where output is

-3dB referenced to 1kHz

230

kHz

Input DC Level (Excluding

Encoder Inputs that are High

Impedance)

VIN

Gain = 0dB

0.2308

x V12

Encoder Input Common-Mode

Voltage Range

VCM

MAX4397DA only,

input differential signal = 0V

1.2

VAUD -

0.7

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