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MC44302A

ADVANCED MULTI–STANDARD VIDEO/SOUND IF

Motorola => Freescale 

MC44302A

ELECTRICAL CHARACTERISTICS (continued) (VCC = 5.0 V, TA = 25°C.)

Characteristic

Symbol

Min

Typ

Max

Unit

VIDEO DETECTOR (CONTINUED)

Residual 920 kHz Beat Output, dB Below 100% Modulated Video

(Pin 5 or 6, Note 2)

BO

–

–60

–

dB

FM SOUND IF AND DETECTOR

Input Impedance Components

Parallel Resistance

Parallel Capacitance

Input Limiting Threshold (f = 4.5 MHz)

AM Rejection (Vin = 10 mV, Notes 4, 5, 6)

f = 4.5 MHz

f = 5.5 MHz

Rin(FM)

–

2.2

–

Cin(FM)

–

4.0

–

Vin(Snd)

–

80

–

AMR

–

50

–

–

50

–

Recovered Audio Output (Pin 24, Vin = 10 mV, Note 4)

f = 4.5 MHz

f = 5.5 MHz

VO(Snd)

–

2.0

–

–

2.0

–

Output Distortion (Pin 24, Vin = 10 mV, Note 4)

f = 4.5 MHz

f = 5.5 MHz

THD

–

1.0

–

–

1.0

–

Sound AFT (Note 7)

Pull–in Range

Hold–in Range

∆fAFT(Snd)

–

±0.6

–

–

±0.6

–

Sound De–Emphasis Internal Resistance (Pin 4)

AM Detector Crosstalk

RDE

–

18

–

CtlkAM

–

– 6.0

–

AM DETECTOR

Input Impedance Components

Parallel Resistance

Parallel Capacitance

Recovered Audio Output (Pin 24, Vin = 100 mV, Note 5)

Output Distortion (Pin 24, Vin = 10 mV, Note 5)

FM Sound IF and Detector Crosstalk

Rin(AM)

–

5.6

–

Cin(AM)

–

4.0

–

VO(Snd)

–

2.0

–

THD

–

1.0

–

CtlkFM

–

–60

–

DC VOLUME CONTROL

Volume Control Range (Pin 1, Pin 3 = Vin)

Output Signal at Minimum Volume Setting (Pin 1 = Gnd, Pin 3 = Vin )

Video Detector Sync to Audio Channel Crosstalk

Fixed Output

Variable Output

∆VO(Snd)

VO(Snd)

CtlkVD

–

+12 to –70

–

–

1.0

–

–

–60

–

–

–60

–

Audio Channel Crosstalk

Fixed Output to Variable Output

Variable Output to Fixed Output

CtlkSnd

–

–60

–

–

–60

–

kΩ

pF

µV

dB

Vpp

%

MHz

kΩ

dB

kΩ

pF

Vpp

%

dB

dB

mV

dB

dB

NOTES:

1. Vin = 1.0 mVrms signal at 45.75 MHz with 75% modulated staircase at 3.58 MHz.

2. Vin = 100 µVrms signal at 41.25 MHz added to signal in Note 1.

3. Differential carrier level at video IF inputs to cause the negative detector output to go positive by 0.1 V from ground.

4. FM Modulation = ±25 kHz deviation at 1.0 kHz for 4.5 MHz intercarrier.

±50 kHz deviation at 1.0 kHz for 5.5 MHz intercarrier.

5. AM Modulation = 30% depth at 1.0 kHz for 4.5 MHz and 5.5 MHz intercarrier.

VO(FM)

6. AM Rejection (dB) = 20 log VO(AM)

7. Tested with 15 µH sound quadrature coil in parallel with 68 pF and 10 kΩ.

8. The AFT output can be disabled by leaving Pin 12 disconnected or by biasing it to the voltage level shown above. When disabled, the output will be

internally clamped to one half of VCC.

MOTOROLA ANALOG IC DEVICE DATA

3

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