Philips (Now NXP) TDA1575T Schematic [ru]

Name: Philips (Now NXP) TDA1575T
Brand: Philips (Now NXP)
SKU: 3781276
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INTEGRATED CIRCUITS

DATA SHEET

TDA1575T

FM front end circuit for CENELEC EN 55020 applications

Preliminary speciﬁcation			April 1993
Supersedes data of October 1990
File under Integrated Circuits, IC01

Philips Semiconductors	Preliminary speciﬁcation

FM front end circuit for

TDA1575T

CENELEC EN 55020 applications

FEATURES

∙Bipolar integrated FM front end circuit, designed for use in car radios and home receivers

∙Fulfils CENELEC EN 55020 requirements

∙Radio frequency range of 76 to 90 MHz (Japan) or

87.5 to 108 MHz (Europe, USA)

∙Low noise oscillator, buffered oscillator output

∙Double balanced mixer

∙Internal buffered mixer driving

∙Linear IF amplifier, suitable for ceramic IF filters

∙Regulated reference voltage.

QUICK REFERENCE DATA

SYMBOL		PARAMETER		MIN.	TYP.	MAX.	UNIT

VP	supply voltage			7	8.5	10	V
IP	supply current, without mixer			−	23	−	mA
VREF	reference voltage output			−	4.2	−	V
ZI	mixer input impedance			−	14	−	Ω
NF	noise ﬁgure of mixer			−	9	−	dB

EMF1	3rd order intermodulation			−	115	−	dBμV

VOSC	oscillator buffer output signal (RMS value)			75	−	−	mV
THD	total harmonic distortion			−	−15	−	dBC

Gv	IF gain			−	30	−	dB
NF	IF noise ﬁgure			−	6.5	−	dB

ZI	IF input impedance			−	300	−	Ω
ZO	IF output impedance			−	300	−	Ω
EMF2	AGC wideband threshold (RMS value)			−	17	−	mV

ORDERING INFORMATION

EXTENDED			PACKAGE
EXTENDED
TYPE NUMBER		PINS	PIN POSITION	MATERIAL		CODE
		PINS	PIN POSITION	MATERIAL		CODE

TDA1575T		16	mini-pack	plastic		SOT109A(1)

Note

1. SOT109-1; 1996 August 29.

April 1993

Philips Semiconductors	Preliminary speciﬁcation

FM front end circuit for

TDA1575T

CENELEC EN 55020 applications

Coils TOKO

L1: MC-108 514 HNE-150023S14; L = 78 nH, N = 4 turns

L2: MC-111 E516 HNS-200057; L = 80 nH

L3: A119 ACS-17114 FTT

Fig.1 Block diagram and test circuit.

April 1993

Philips Semiconductors	Preliminary speciﬁcation

FM front end circuit for

TDA1575T

CENELEC EN 55020 applications

PINNING

SYMBOL	PIN	DESCRIPTION

MIXI1	1	RF input 1 to mixer

MIXI2	2	RF input 2 to mixer

AGCI	3	HF input to automatic gain control

GND	4	ground (0 V)

VREF	5	reference voltage output
OSCO	6	oscillator output

OSCI1	7	oscillator input 1

OSCI2	8	oscillator input 2

LO	9	buffered oscillator output

IFO	10	linear FM IF output

IFI1	11	FM IF input 1

IFI2	12	FM IF input 2

VP	13	supply voltage (+8.5 V)
MIXO1	14	mixer output 1

MIXO2	15	mixer output 2	Fig.2 Pin configuration.
			Fig.2 Pin configuration.
AGCO	16	automatic gain control output

LIMITING VALUES

Limiting values in accordance with the Absolute Maximum System (IEC 134).

SYMBOL	PARAMETER	MIN.	MAX.	UNIT

VP	supply voltage (pin 13)	0	12	V
V14, 15	voltage at mixer output	0	VP	V
Ptot	total power dissipation	0	380	mW
Tstg	storage temperature range	−55	+150	°C
Tamb	operating ambient temperature range	−40	+85	°C
VESD	electrostatic handling (see note 1)
	all pins except 3 and 10	−	±2000	V
	pin 3	−	+2000	V
		−	−1000	V
	pin 10	−	+1500	V
		−	−2000	V

Note to the limiting values

1. Equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor.

April 1993

Philips Semiconductors	Preliminary speciﬁcation

FM front end circuit for

TDA1575T

CENELEC EN 55020 applications

CHARACTERISTICS

VP = 8.5 V and Tamb = +25°C, measurements taken in Fig.1 with f0 = 98 MHz (EMF1) unless otherwise speciﬁed.

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNIT

VP	supply voltage (pin 13)		7	8.5	10	V
IP	supply current	without mixer	16	23	30	mA
VREF	reference voltage (pin 5)	I5 £ 3 mA	3.9	4.2	4.4	V
Mixer

I14+15	mixer supply current (pins 14 and 15)		-	4	-	mA
V1,2	DC voltage input (pins 1 and 2)		-	1	-	V
Z1,2	input impedance		-	14	-	W
V14,15	DC output voltage (pins 14 and 15)		4	-	10	V
C14,15	output capacitance		-	13	-	pF
GP	conversion power gain	note 1	-	14	-	dB
EMF1IP3	3rd order intercept point		-	115	-	dBmV
NF	noise ﬁgure		-	9	-	dB
	total noise ﬁgure	including	-	11	-	dB
		transforming network

Oscillator

V7,8	DC input voltage (pins 7 and 8)		-	1.3	-	V
V6	DC output voltage (pin 6)		-	2.0	-	V
Df	residual FM at pin 6	f = 300 to 15000 Hz;	-	2.2	-	Hz
		de-emphasis 50 ms
Oscillator buffered output (pin 9)

VO	output signal (RMS value)	RL= 500 W; CL= 2 pF	75	-	-	mV
V9	DC output voltage		-	6	-	V
R9	DC output resistor		-	950	-	W
THD	total harmonic distortion		-	-15	-	dBC
fS	spurious frequencies	EMF1 = 2 V;	-	-37	-	dBC
		RS = 50 W;
		fOSC = 108.7 MHz
Automatic gain control (AGC)

R3	input resistance (pin 3)		-	4	-	kW
C3	input capacitance		-	3	-	pF
V16	AGC output swing (DC)	Figs 3 and 4	0.5	-	VP - 0.3	V
I16	output current at I3 = 0	V16 = 1¤2VP	-25	-50	-150	mA
	output current at U3 = 2 V	V16 = 7 to 10 V	2	-	5	mA
EMF2	threshold (RMS value)	I16 = 0; V16 = 1¤2VP;	-	17	-	mV
		Figs 4 and 5

April 1993

Philips Semiconductors	Preliminary speciﬁcation

FM front end circuit for

TDA1575T

CENELEC EN 55020 applications

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNIT

Linear IF ampliﬁer		IF = 10.7 MHz

V11,12	DC input voltage (pins 11 and 12)		−	1.25	−	V
Z12-11	input impedance		240	300	360	Ω
C12-11	input capacitance		−	13	−	pF
V10	DC output voltage (pin 10)		−	4.4	−	V
Z10	output impedance		240	300	360	Ω
C10	output capacitance		−	3	−	pF
VO	output signal (RMS value)	−1 dB compression	−	−	650	mV
Gv	IF voltage gain (20 log (V10−4 / V12−11))		27	30	−	dB
Gv	IF voltage gain deviation	Tamb= −40 to +85 °C	−	0	−	dB
NF	noise ﬁgure	RS = 300 Ω	−	6.5	−	dB

Note

1. GP = 10 log (4Vo mix ×10.7 MHz) / (EMF2 × 98 MHz)2 × (RS1 / RML).

Fig.3 AGC output voltage V16 as a function of		Fig.4 AGC output current I16 as a function of
Vi3 RMS at I16 = 0, measured in test circuit		Vi3 RMS at V16 = 8.5 V, measured in test
Fig.1.		circuit Fig.1.

April 1993

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