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INTEGRATED CIRCUITS
DATA SHEET
TDA1597
IF amplifier/demodulator for FM
radio receivers
1997 Feb 27
Product specification
Supersedes data of May 1994
File under Integrated Circuits, IC01
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 FEATURES GENERAL DESCRIPTION • Balanced limiting amplifier The TDA1597 provides IF amplification, symmetrical quadrature demodulation and level detection for quality • Balanced coincidence demodulator home and car FM radio receivers and is suitable for mono • Two open-collector stop pulse outputs for and stereo reception. It may also be applied to common microcomputer tuning control front-ends, ste
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 BLOCK DIAGRAM 1997 Feb 27 3 SFE V ref STOP-0 STOP-1 330 Ω FM-IF
25 kΩ input (1) 22 nF 22 nF 47 nF 25 kΩ +5 V 20
19
18
17
13
16
15
14
(18) (17) (16) (15) (11) (14) (12) (13) TDA1597T 25 kΩ V int 12 n.c. LEVEL
DETECTOR V int 11 (10) 9 pF 25
kΩ V V int int LP
HP
3.3
100
DETUNE
FILTER
FILTER
+- kΩ pF DETECTOR 1 MHz 50 kHz LIMITING
V int QUADRATURE
AMPLIFIER DEMODULATOR 25 kΩ 10
40
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 PINNING PIN SYMBOL DESCRIPTION DIP18 SO20 V 1 1 supply voltage (+8.5 V) P LVA 2 2 level adjustment for stop condition ULV 3 3 unweighted level output/K2 adjustment V 4 4 audio frequency output (MPX signal) oAF V 5 5 reference voltage output ref WLV 6 6 weighted level output MODE 7 7 mode switch input DDV 8 8 detune detector voltage n.c. - 9 not connected DEMI1 9 10 demodulator input 1 DEMI2 10 11 d
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 FUNCTIONAL DESCRIPTION Consequently, there is no need for the demodulator tuned circuit to be adjusted for minimum distortion. Adjustment The limiter amplifier has five stages of IF amplification criterion is a symmetrical stop pulse. The control voltage using balanced differential limiter amplifiers with emitter for the mute attenuator (pin 16) is derived from the values follower coupling. of the
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 THERMAL CHARACTERISTICS SYMBOL PARAMETER VALUE UNIT R thermal resistance from junction to ambient in free air th j-a SOT102-1 80 K/W SOT163-1 90 K/W CHARACTERISTICS V = 8.5 V; T =25 °C; FM-MUTE-ON (I = 0); f = 10.7 MHz; deviation ±22.5 kHz with f = 400 Hz; P amb 7 IF m V = 10 mV (RMS) at pin 20; de-emphasis of 50 μs; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses; i measurement
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT External muting V muting voltage at I =0 V ≤ 5 μV (RMS); see Fig.12 1.45 1.75 2.05 V 16 2 20 V = 1 mV (RMS) 3.0 3.45 3.9 V 20 S steepness of control voltage slope: 100 μV ≤ V ≤ 100 mV; - 0.85 - V/dec 20 ΔV 16 20ΔlogV = 20 dB --------------------- 20 ΔlogV 20 Internal mute α; note 1 α mute voltage V ≥ V - 0 - dB 16 ref V = 0.77V 1.5 - 4.5 dB 16 ref V =
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 OPERATING CHARACTERISTICS V = 7.5 to 12 V; T =25 °C; FM-MUTE-ON (I = 0); f = 10.7 MHz; deviation ±22.5 kHz with f = 400 Hz; P amb 7 IF m V = 10 mV (RMS) at pin 20; de-emphasis of 50 μs; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses; i measurements taken in Fig.4; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT IF amplifier and demodulator V input sign
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Tuning stop detector Δf detuning frequency for STOP-0 V ≥ 3.5 V; see Fig.11 -- 26 kHz STOP-0 15 (pin 15) V ≤ 0.3 V; see Fig.11 38 -- kHz 15 Δf detuning frequency for STOP-1 V ≥ 3.5 V; see Fig.10 --- 26 kHz STOP-1 14 (pin 14) V ≤ 0.3 V; see Fig.10 - 38 -- kHz 14 V dependence on input voltage for V ≥ 3.5 V; see Fig.9 250 -- μV 20(rms) 14, 15 STOP-0 and
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 handbook, full pagewidth V STOP-0 +5 V STOP-1 mute R2
50 Ω 22 nF 27
27
47
220
IF = 10.7 MHz 22 nF R1
kΩ kΩ nF nF n.c. 150 Ω 20
19
18
17
16
15
14
13
12 11
(18) (17) (16) (15) (14) (13) (12) (11) (10) 100
3.3
TDA1597T pF kΩ IF (1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
1 2 3 4 5 6 7 8 9 10 V P 10 Ω S4 100
S1 n.c. Q = 19 nF L (+8.5 V) (1) (3) 100 nF (2) 220 kΩ level (weighted) leve
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MBE519 0 V 4 (dB) - 20 (1) - 40 (2) - 60 - 80 - 100 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms) (1) Audio signal. (2) Noise. Fig.5 FM-MUTE-ON: Audio signal and noise as functions of the input signal V (pin 20) with Δf= ±22.5 kHz; iIF f = 1 kHz; de-emphasis 50 μs. m MEH071 20 handbook, full pagewidth V 4
(dB) 0 (1) - 20 (2) - 40 - 60 - 80 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MBE520 0 V 4 (dB) - 20 (1) - 40 (2) - 60 - 80 - 100 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms) (1) Audio signal. (2) Spurious AM signal. Fig.7 FM-MUTE-ON: Typical AM suppression as a function of the input signal V (pin 20) with Δf= ±22.5 kHz; iIF f = 1 kHz; AM with f = 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth. m m MEH073 20 handbook, full pagewidth V 4
(dB) 0 (1) - 20 (2) - 4
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MEH074 10 handbook, full pagewidth V 14, 15
(12, 13)
(V) 8 6 4 2 0 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms Fig.9 STOP-0 and STOP-1 output voltage dependent on input signal V (pin 20). iIF MED833 MEH075 10 10 handbook, halfpage handbook, halfpage V V 14(12)
15(13)
(V) (V) 8 8 6 6 4 4 2 2 0 0 - 40 - 30 - 20 - 10 0 10 20 - 20 - 10 0 10 20 30 40 detune (kHz) detune (kHz) Fig.10
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MEH076 10 handbook, full pagewidth V 16(14)
(V) 8 6 (1) (2) 4 (3) 2 0 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms) (1) V =0V. 2 (2) I = 0 mA. 2 (3) V =V . 2 ref Fig.12 External mute voltage V dependent on input signal V (pin 20); typical adjusting range. 16(14) iIF MEH079 10 handbook, full pagewidth V 16(14)
(V) 8 6 4 2 0 - 400 - 300 - 200 - 100 0 100 200 300 400 detune (kHz) Fig.
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MBE516 10 V 6 (V) 8 (1) 6 (2) 4 (3) 2 0 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms) (1) V =0V. 2 (2) I = 0 mA. 2 (3) V =V . 2 ref Fig.14 Control voltage V dependent on input signal V (pin 20); typical adjusting range. 6 iIF MED834 10 handbook, full pagewidth V 6
(V) 8 6 4 2 0 - 400 - 300 - 200 - 100 0 100 200 300 400 detune (kHz) Fig.15 Control voltage V dependent on detuning; V
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 MBE517 10 V 3 (V) 8 6 (1) (2) 4 (3) 2 0 - 6 - 5 - 4 - 3 - 2 - 1 10 10 10 10 10 10 1 V (V) i20 (rms) (1) V =0V. 2 (2) I = 0 mA. 2 (3) V =V . 2 ref Fig.16 Level output voltage V dependent on input signal V (pin 20); typical adjusting range. 3 iIF MBE518 0.5 handbook, full pagewidth THD
(%) 0.4 0.3 0.2 0.1 0 - 80 - 60 - 40 -20 0 2040 6080 detune (kHz) Fig.17 Total harmonic distortion dependent on de
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 APPLICATION INFORMATION 1997 Feb 27 17 SFE handbook, full pagewidth 300 Ω STOP-0 STOP-1 FM-IF 22 nF 22 nF tuned to AM-IF 560
15
20 19 18 17 16 15 14 13 12 11 pF kΩ AM-IF TDA1597T 12 3 4 567 8 9 10 100
3.3
pF kΩ BAW62 HIGH = FM
tuned to FM-IF LOW = AM 22 nF 1 kΩ 20 19 18 17 16 15 14 13 12 11 TDA1572T 12 3 4567 8 10 9 MED836 Fig.18 Interface for AM stop pulse application (SO version).
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 1997 Feb 27 18 SFE handbook, full pagewidth 300 Ω STOP-0 STOP-1 FM-IF 22 nF 22 nF tuned to AM-IF 560
15
18 17 16 15 14 13 12 11 10 pF kΩ AM-IF TDA1597 12 3 4 567 8 9 100
3.3
pF kΩ BAW62 HIGH = FM
tuned to FM-IF LOW = AM 22 nF 1 kΩ 18 17 16 15 14 13 12 11 10 TDA1572 12 3 4567 8 9 MED837 Fig.19 Interface for AM stop pulse application (DIP version).
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 PACKAGE OUTLINES DIP18: plastic dual in-line package; 18 leads (300 mil) SOT102-1 D M E A 2 A A 1 L c e w M Z b 1 (e ) 1 b b 2 18 10 M H pin 1 index E 1 9 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) (1) A A A (1) (1) 12 Z w UNIT b b b cD E e e L M M 1 2 1 E H max. min. max. max. 1.40 0.53 1.40 0.32 21.8 6.48 3.9 8.25 9.5 mm 4.7 0.51 3.7 2.54 7.62 0.25
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Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c y H v M A E Z 20 11 Q A 2 A (A ) 3 A 1 pin 1 index θ L p L 1 10 detail X e w M b p 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) A (1) (1) (1) UNIT A A A b cD E eH LL Q v w y θ 1 2 3 p E p Z max. 0.30 2.45 0.49 0.32 13.0 7.6 10.65 1.1 1.1 0.9 mm 2.65 0.25 1.27 1.4 0.25 0.2
