Philips TDA1597

1997 Feb 27 6

Philips Semiconductors Product speciﬁcation

IF ampliﬁer/demodulator for FM radio receivers TDA1597

THERMAL CHARACTERISTICS

CHARACTERISTICS

VP= 8.5 V; Tamb=25°C; FM-MUTE-ON (I7= 0); fIF = 10.7 MHz; deviation ±22.5 kHz with fm= 400 Hz;

Vi= 10 mV (RMS) at pin 20; de-emphasis of 50 µs; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;

measurements taken in Fig.4; unless otherwise speciﬁed.

SYMBOL PARAMETER VALUE UNIT

Rth j-a thermal resistance from junction to ambient in free air

SOT102-1 80 K/W

SOT163-1 90 K/W

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VPsupply voltage 7.5 8.5 12 V

IPsupply current I2=I

7=0 −20 26 mA

Mode switch input

I7input current FM-MUTE-ON −0−mA

V7input voltage FM-MUTE-ON 2.4 2.8 3.2 V

FM-MUTE-OFF 0.9Vref −−V

FM-OFF;

AF attenuation >60 dB

−−1.4 V

IF ampliﬁer and demodulator

Zidemodulator input impedance

between pins 10 and 11 25 40 55 kΩ

Cidemodulator input capacitance

between pins 10 and 11

−6−pF

AF output (pin 4)

Rooutput resistance −400 −Ω

4DC output voltage level ViIF≤5µV (RMS) on pin 20 2.75 3.1 3.45 V

PSRR power supply ripple rejection

(pin 4) f= 1000 Hz;

Vripple = 50 mV (RMS) 33 36 −dB

Tuning stop detector

∆fSTOP-0 detuning frequency for STOP-0

(pin 15) V15 ≥3.5 V; seeFig.11 −−26 kHz

V15 ≤0.3 V; seeFig.11 38 −−kHz

∆fSTOP-1 detuning frequency for STOP-1

(pin 14) V14 ≥3.5 V; see Fig.10 −−−26 kHz

V14 ≤0.3 V; see Fig.10 −38 −−kHz

V20(rms) dependence on input voltage for

STOP-0 and STOP-1

(RMS value)

V14,15 ≥3.5 V; see Fig.9 250 −− µV

14,15 ≤0.3 V; see Fig.9 −−50 µV

V14,15 output voltage I14,15 =1mA −−0.3 V

Reference voltage source (pin 5)

Vref reference output voltage I5=−1mA 3.3 3.7 4.1 V

R5output resistance I5=−1mA −40 80 Ω

TC temperature coefﬁcient −3.3 −mV/VK