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TDA7000
Datasheet (Philips)
10 pgs230.06 Kb0
Specification
10 pgs237.41 Kb0
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Datasheet TDA7000 Datasheet (Philips)

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Page 1
INTEGRATED CIRCUITS
DATA SH EET
TDA7000
FM radio circuit
Product specification File under Integrated Circuits, IC01
May 1992
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FM radio circuit TDA7000

GENERAL DESCRIPTION

The TDA7000 is a monolithic integrated circuit for mono FM portable radios, where a minimum on peripheral components is important (small dimensions and low costs).
The IC has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC filters. The only function which needs alignment is the resonant circuit for the oscillator, thus selecting the reception frequency. Spurious reception is avoided by means of a mute circuit, which also eliminates too noisy input signals. Special precautions are taken to meet the radiation requirements.
The TDA7000 includes the following functions:
• R.F. input stage
• Mixer
• Local oscillator
• I.F. amplifier/limiter
• Phase demodulator
• Mute detector
• Mute switch

QUICK REFERENCE DATA

Supply voltage range (pin 5) V Supply current at V
= 4,5 V I
P
R.F. input frequency range f
P rf
2,7 to 10 V
P
typ. 8 mA
1,5 to 110 MHz
Sensitivity for -3 dB limiting
(e.m.f. voltage)
(source impedance: 75 Ω; mute disabled) EMF typ. 1,5 µV
Signal handling (e.m.f. voltage)
(source impedance: 75 Ω) EMF typ. 200 mV
A.F. output voltage at R
= 22 kΩ V
L
typ. 75 mV
o
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102HE); SOT102-1; 1996 July 24.
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FM radio circuit TDA7000
Fig.1 Block diagram.
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FM radio circuit TDA7000

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage (pin 5) V
Oscillator voltage (pin 6) V
P 6-5
Total power dissipation see derating curve Fig.2 Storage temperature range T Operating ambient temperature range T
stg amb
max. 12 V
VP−0,5 to VP + 0,5 V
−55 to +150 °C 0 to + 60 °C
Fig.2 Power derating curve.

D.C. CHARACTERISTICS

= 4,5 V; T
V
P
= 25 °C; measured in Fig.4; unless otherwise specified
amb
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Supply voltage (pin 5) V Supply current
at V
= 4,5 V I
P
Oscillator current (pin 6) I Voltage at pin 14 V Output current at pin 2 I Voltage at pin 2; R
= 22 kΩ V
L
May 1992 4
P
P 6
14-16
2
2-16
2,7 4,5 10 V
− 8 − mA
− 280 −µA
− 1,35 − V
− 60 −µA
− 1,3 − V
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FM radio circuit TDA7000

A.C. CHARACTERISTICS

V
= 4,5 V; T
P
at 5 µV e.m.f.) modulated with ∆f = ± 22,5 kHz; f 75 Ω); r.m.s. noise voltage measured unweighted (f = 300 Hz to 20 kHz); unless otherwise specified.
Sensitivity (see Fig.3)
(e.m.f. voltage) for −3 dB limiting; muting disabled EMF − 1,5 −µV
for −3 dB muting EMF − 6 −µV
for S/N = 26 dB EMF − 5,5 −µV
Signal handling (e.m.f. voltage)
for THD < 10%; ∆f = ± 75 kHz EMF − 200 − mV Signal-to-noise ratio S/N − 60 − dB Total harmonic distortion
at ∆f = ± 22,5 kHz THD − 0,7 − %
at ∆f = ± 75 kHz THD − 2,3 − % AM suppression of output voltage
(ratio of the AM output signal referred to the FM output signal) FM signal: f AM signal: f
Ripple rejection (∆V
f = 1 kHz) RR − 10 − dB
Oscillator voltage (r.m.s. value)
at pin 6 V
Variation of oscillator frequency
with supply voltage (∆VP= 1 V) ∆f
Selectivity S
A.F.C. range ∆f Audio bandwidth at ∆V
measured with pre-emphasis (t = 50 µs) B − 10 − kHz
A.F. output voltage (r.m.s. value)
at R
L
Load resistance
at VP= 4,5 V R at V
P
= 25 °C; measured in Fig.4 (mute switch open, enabled); frf = 96 MHz (tuned to max. signal
amb
= 1 kHz; EMF = 0,2 mV (e.m.f. voltage at a source impedance of
m
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
= 1 kHz; ∆f = ± 75 kHz
m
= 1 kHz; m = 80% AMS − 50 − dB
m
= 100 mV;
P
− 250 − mV
− 60 − kHz/V
− 45 − dB
− 35 − dB
−±300 − kHz
− 75 − mV
−−22 kΩ
−−47 kΩ
= 3 dB
o
= 22 kΩ V
= 9,0 V R
6-5(rms)
osc
+300
S
−300 rf
o(rms)
L L
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FM radio circuit TDA7000
Fig.3 A.F output voltage (Vo) and total harmonic distortion (THD) as a function of the e.m.f. input voltage (EMF)
with a source impedance (RS) of 75 Ω: (1) muting system enabled; (2) muting system disabled.
Conditions: 0 dB = 75 mV; frf= 96 MHz.
for S + N curve: ∆f = ± 22,5 kHz; f for THD curve; ∆f = ± 75 kHz; f
Notes
1. The muting system can be disabled by feeding a current of about 20 µA into pin 1.
2. The interstation noise level can be decreased by choosing a low-value capacitor at pin 3. Silent tuning can be achieved by omitting this capacitor.
m
= 1 kHz.
m
= 1 kHz.
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FM radio circuit TDA7000
Fig.4 Test circuit; for printed-circuit boards see Figs 5 and 6.
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FM radio circuit TDA7000
Fig.5 Track side of printed-circuit board used for the circuit of Fig.4.
Fig.6 Component side of printed-circuit board showing component layout used for the circuit of Fig.4.
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FM radio circuit TDA7000

PACKAGE OUTLINE

DIP18: plastic dual in-line package; 18 leads (300 mil)
D
seating plane
L
Z
18
pin 1 index
e
b

SOT102-1

M
E
A
2
A
A
1
w M
b
1
b
2
10
E
c
(e )
1
M
H
1
0 5 10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
A
A
UNIT
max.
mm
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE VERSION
SOT102-1
12
min.
max.
IEC JEDEC EIAJ
b
1.40
1.14
0.055
0.044
b
1
0.53
0.38
0.021
0.015
b
cD E e M
2
0.32
1.40
0.23
1.14
0.013
0.055
0.009
0.044
REFERENCES
21.8
21.4
0.86
0.84
May 1992 9
9
(1) (1)
6.48
6.20
0.26
0.24
L
e
1
M
3.9
8.25
3.4
7.80
0.15
0.32
0.13
0.31
EUROPEAN
PROJECTION
E
0.37
0.33
H
9.5
8.3
w
max.
0.2542.54 7.62
0.854.7 0.51 3.7
0.010.10 0.30
0.0330.19 0.020 0.15
ISSUE DATE
93-10-14 95-01-23
(1)
Z
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FM radio circuit TDA7000
SOLDERING Introduction
There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used.
This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our
“IC Package Databook”
Soldering by dipping or by wave
The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds.

DEFINITIONS

(order code 9398 652 90011).
The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (T printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds.
stg max
). If the
Data sheet status
Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
May 1992 10
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