Electrical specification

TDA7479

6/12

VREF

Reference

VS/2

V

Demodulator

Input pins (EXTRES, FSEL, TM:)

all with internal pull down resistor

Input pin (OSEL):

with internal pull up resistor

IPD

Input current

VIN = 5 V (pull-down input)

15

30

A

IPU

Input current

VIN = 0 V (pull-up input)

-25

-10

A

VIH

Input voltage high

0.7 · VS 0.8 · VS

V

VIL

Input voltage low

0.2 · VS 0.3 · VS

V

Output pins (RDCL, RDDA, ARI, QUAL, T57)

VOH

Output voltage high

IL = 0.5mA

4

4.6

V

VOL

Output voltage low

IL = 0.5mA

0.4

1

V

Oscillator

VCLL

Input level OSCIN pin

OSEL = open circuit

1

V

VCLH

Input level OSCIN pin

OSEL = open circuit

4

V

Amplitude OSCOUT

OSEL = open circuit

4.5

V

VPP

Amplitude OSCIN

(for external drive)

OSEL = GND, f = 4.332 MHz

OSEL = GND, f = 8.664 MHz

100

120

mVpp

mVpp

OSEL = GND, f = 17.328 MHz

150

mVpp

1.

The 3rd harmonic (57 kHz) must be less than -40 dB with respect to the input signal plus gain.

Table 5.

Electrical characteristics (continued)

(Tamb = 25°C, VS = 5V, unless otherwise specified)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit