ELECTRICAL CHARACTERISTICS (continued)

∆f = ± 25kHz,

Ω, unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

DEMODULATED VIDEO OUTPUT (Pin 18) (continued)

Differential Gain

3

7

%

Differential Phase

3

7

Degree

Residual Carrier Signal (RMS

value)

110

mV

Residual 2nd Harmonic (RMS

value)

220

mV

Internal Bias of Emitter Follower

3

5

mA

S/N

Signal to Noise Ratio

Note 1

55

dB

Intermodulation 1.07MHz

Note 2

50

dB

White Noise Threshold Voltage

See Figure 5

4.5

V

White Noise Insertion Level

See Figure 5

3.2

V

Black Noise Threshold Voltage

1.3

V

Black Noise Insertion Level

2.5

V

AGC CIRCUIT

Charging Current

550

900

1200

µA

Discharge Current

12

20

26

µA

C/D

Charging / Discharging Ratio

45

TUNER AGC

Sinked Current

1.2

1.9

2.6

mA

Current Slope

See FIgure 4

300

µA/dB

AFC

AFC Slope

See Figure 2, refer to test circuit

20

mV/kHz

FM SOUND DEMODULATION

Input Sensitivity

-3dB FM detected signal

60

µV

AMR

Amplitude Modulation Rejection

Note 3

40

53

dB

Limiter Input Resistance

1.2

k

Ω

AUDIO OUTPUT (PIn 11)

Detected Audio Output Signal

500

THD

Total Harmonic Distortion

0.2

1

%

S

N

Signal to Noise Ratio

Note 4

68

dB

Internal Deemphasis Resistor

700

1000

1400

Ω

VOLUME CONTROL

Control Range

See Figure 3

80

dB

Notes : 1.

S

N

at BW = 5MHz

2. Video carrier relative level = 0dB, Chroma subcarrier relative level = -3.2dB, Sound carrier relative level = -20dB.

3. AMR = 20 Log

4.

S

N

= 20 Log

(dB)

TDA8222

4/9