TDA9812T Просмотр технического описания (PDF) - Philips Electronics

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производитель

TDA9812T

Multistandard VIF-PLL and FM-PLL/AM demodulator

Philips Electronics 

Philips Semiconductors

Multistandard VIF-PLL and

FM-PLL/AM demodulator

Preliminary specification

TDA9812

70

handgbaoionk, halfpage

(dB)

60

50

40

gain =

I tuner =

MBE438

1.0

I tuner

(mA)

0

30

20

1.0

10

0

10

1.0

RTOP = 22 kΩ

1.5 2.0 2.5

11 kΩ 0 kΩ

2.0

3.0 3.5 4.0 4.5

V28 (V)

handbook, halfpage

0.06

VIF input

(1, 2)

(mV RMS)

0.6

gain =

I tuner =

MBE439

1.0

I tuner

(mA)

0

6

1.0

RTOP = 22 kΩ

11 kΩ 0 kΩ

60

2.0

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

V28 (V)

Fig.5 Typical tuner AGC characteristic.

Fig.6 Typical tuner VIF characteristic.

120

handbook, halfpage

(dBµV)

100

80

MBE440

60

40

20

0

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

V8 (V)

1000

haSndIFboionkp,uhtalfpage

(31, 32)

(mV RMS) 100

MBE441

10

1

0.1

0.01

0.001

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

V8 (V)

Fig.7 Typical AGC characteristic.

1995 Mar 21

Fig.8 Typical SIF AGC characteristic.

21

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