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TEA5594

AM/FM radio receiver circuit

Philips Electronics 

Philips Semiconductors

AM/FM radio receiver circuit

Product specification

TEA5594

AC CHARACTERISTICS

All parameters are measured in test circuit (see Fig.6) at nominal supply voltage VP = 6 V; Tamb = 25 °C unless

otherwise specified.

PARAMETER

CONDITIONS

SYMBOL MIN.

TYP.

MAX.

UNIT

AM SECTION

AM front end

note 1

Conversion transconductance Vi = 10 mV

VAGC (pin 15)

= V24 - 0.1 V

SC

VAGC = V24 - 0.45 V

SC

IF suppression

note 2

α

(9)

13.5

(9)

(9)

1.2

(9)

20

30

−

mA/V

mA/V

dB

Oscillator (pin 25)

Voltage

Oscillator buffer

Output voltage

(peak-to-peak value)

IF and detector part

IF sensitivity;

AF output voltage

Signal + noise to noise

ratio for an IF input

AF output voltage

Total harmonic distortion

f = 1.5 MHz

Vosc

−

160

(9)

mV

note 3

V18

(9)

140

−

mV

no AGC;

Vi(IF) = 90 µV

no AGC;

Vo

30

40

60

mV

Vi(IF) = 90 µV

Vi(IF) = 1 mV

Vi(IF) = 10 mV;

m = 80%

S+N/N

22

24

30

dB

Vo

35

50

70

mV

THD

0.75

2

5

%

Vi(IF) = (9) to (9) mV;

m = 30%

THD

−

(9)

−

%

Indicator/level detector

Output voltage

Vi(IF) = 0 V

Vi(IF) = 200 µV

Vi(IF) = 10 mV

V13

(9)

560

(9)

mV

V13

(9)

3200

(9)

mV

V13

(9)

6600

(9)

mV

AM IF counter output buffer

Counter “enable”

Output voltage

(peak-to-peak value)

Counter “disable”

V20

100

125

−

mV

Suppression of 468 kHz

Overall performance

note 4

V20

−40

−

−

dB

Total harmonic distortion

Vi(RF) = 50 mV

THD

−

−

8

%

Signal handling

THD = (9) %; m = 0.8%

−

(9)

−

March 1991

9

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