TBA120 datasheet(4/9 Pages) PHILIPS

4 / 9 page

March 1986

Philips Semiconductors

Product speciﬁcation

Sound I.F. ampliﬁer/demodulator for TV

TBA120U

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

CHARACTERISTICS

VP = 12 V; Tamb =25 °C; f = 5,5 MHz

Supply voltage (pin 11)

VP = V11-1

max.

V (1)

Adjustment voltage (pin 5)

V5-1

max.

Total power dissipation

Ptot

max.

400

By-pass resistance

R13-14

max.

Ω

Storage temperature range

Tstg

−40 to + 125 °C

Operating ambient temperature range

Tamb

0 to

+ 70

°C

I.F. voltage gain

Gv if 6-14

typ.

Input voltage starting limiting

∆f= ± 50 kHz; fm = 1 kHz

typ.

µV

I.F. output voltage at limiting

(peak-to-peak value)

Vo if (p-p)

typ.

250

AM suppression at

∆f= ± 50 kHz; Vi = 500 µV;

fm = 1 kHz; m = 30%

α>

typ.

I.F. residual voltage without de-emphasis

at pin 12

Vif 12

typ.

at pin 8

Vif 8

typ.

A.F. voltage gain

Gv af 8-3

typ.

7,5

A.F. adjustment

20 to 36

at R4-5 =5 kΩ;R5-1 = 13 kΩ∆Voaf

typ.

A.F. output voltage control range

∆V

oaf

typ.

Adjustment resistor( note 2)

R4-5

1 to 10

Ω

D.C. voltage portion at the a.f. outputs

pin 12

V12-1

typ.

5,6

pin 8

V8-1

typ.

4,0

Output resistance of the a.f. outputs

pin 12

Ro 12-1

typ.

1,1

Ω

pin 8

Ro 8-1

typ.

1,1

Ω

Input resistance of the a.f. input

Ri 3-1

typ.

Ω

4,2 to 5,3

Stabilized reference voltage

V4-1 =Vref

typ.

4,8

Source resistance of reference

voltage source

R4-1

typ.

Ω

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