TDA1083

One Chip AM/FM Radio with Audio Power Amplifier

www.artschip.com

2

Electrical Characteristics

Parameters

Test Conditions / Pin

Symbol

Min

Typ

Max

Unit

AF amplifier

AF voltage amplification

F=1 kHz

Gv

40

dB

Input impedance

Ri

150

kΩ

Output power

Figures 4 and 5

Vs=5.5V

Po

300

mW

DC voltages at AM mode

Without signal

Vs=3V

Pin 10

Pin 12

Pin 13

Pin 16

Is=42mA

Pin 10

(Vs=12.5 to 14.3V)

Pin 12

Pin 13

Pin 16

V10

V12

V13

V16

V10

V12

V13

V16

1.0

3.0

1.25

5.9

12.5

1.5

1.2

3.0

1.2

13.3

1.4

3.0

2.0

7.2

14.3

2.0

V

V

V

V

V

V

V

V

Regulation range

Pin 6

Δ

Vi

70

dB

AF voltage at demodulator

output

Pin 8

100

mV

DC voltages at FM mode

without signal

Vs=3V

Pin 10

Pin 12

Pin 13

Pin 16

Is=42mA

Pin 10

(Vs=12.5 to 14.3V)

Pin 12

Pin 13

Pin 16

V10

V12

V13

V16

V10

V12

V13

V16

1.0

3.0

1.8

5.9

12.5

2.0

1.2

3.0

1.2

13.3

1.4

3.0

2.8

7.2

14.3

3.1

V

V

V

V

V

V

V

V

Limiting threshold (-3dB)

Pin 2

VI

50

µV

AF voltage at demodulator

output

Pin 8

100

mV

Different dc voltages are developed at Pin 16 due to gain spread of AM-IF-amplifier. To determine the value of parallel resistance

R8, at the output of the demodulator Pin 8 for Vs =9V, AM mode without signal, dc voltage should be selected at Pin 16.

Table 1. Available in following voltage groups

V16

1.4 to 1.7V

1.7V to 1.9V

1.9 to 2.1V

R8

∞

Group

1

2

3