ELECTRICAL CHARACTERISTICS (continued)

∆f= ±50kHz,

Volume attenuation = 0dB, unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

AGC CIRCUIT (L MODE)

Charging Current

Note 3

2

3.3

4.5

mA

Discharge Current

0.3

µA

Additional Charging Current

L in case of missing, VITS Pulses

and no White in Video Content

5

µA

Threshold Voltage Level for

Additional Charging Current

Refered to Pin 3

2.75

V

Additional Discharging Current

28

40

56

µA

Threshold Voltage Level for

Additional Discharging Current

Refered to Pin 3

2.25

V

TUNER AGC

Maximum Sinked Current

1.5

2

2.5

mA

S23

Current Slope

Ω

100

170

230

µA/dB

Maximum Tuner Plus Sinked Current

Note 6

40

mA

FM SOUND DEMODULATION

Input Sensitivity

-3dB FM detected signal

35

µV

Limiter Input Resistance

1.2

k

Ω

AMR

Amplitude Modulation Rejection

Note 4

50

61

dB

SVR

Supply Voltage Rejection Ratio

12

17

dB

Detected Audio Output Signal

0.85

1.1

1.4

THD

Total Harmonic Distortion

0.2

1

%

Internal Deemphasis Resistor

600

750

900

Ω

S/N

Signal to Noise Ratio

Note 5, Weighted CCIR 468-4

50

55

dB

VOLUME CONTROL

Control Range

See Figure 22

72

77

dB

AUDIO SWITCH

Input Resistance

45

60

75

k

Ω

CRtk

Crosstalk

70

80

dB

EXTHD

THD on External Signal

0.1

0.3

%

Notes : 3. Triggered on white level

4. AMR = 20 log

5.

S

N

= 20 log

)

(dB)

6. Additional sinked current for large increasing steps of input signal when :

- Voltage Pin 22 > starting point defined Pin 24.

STV8224A

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