DATA SHEET
Product specification
File under Integrated Circuits, IC01
May 1992
INTEGRATED CIRCUITS
TDA7000
FM radio circuit
May 1992
2
Philips Semiconductors
Product specification
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
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102HE); SOT102-1; 1996 July 24.
Supply voltage range (pin 5)
V
P
2,7 to 10 V
Supply current at V
P
= 4,5 V
I
P
typ.
8 mA
R.F. input frequency range
f
rf
1,5 to 110 MHz
Sensitivity for -3 dB limiting
(e.m.f. voltage)
(source impedance: 75
;
mute disabled)
EMF typ.
1,5
V
Signal handling (e.m.f. voltage)
(source impedance: 75
)
EMF typ.
200 mV
A.F. output voltage at R
L
= 22 k
V
o
typ.
75 mV
May 1992
3
Philips Semiconductors
Product specification
FM radio circuit
TDA7000
Fig.1 Block diagram.
May 1992
4
Philips Semiconductors
Product specification
FM radio circuit
TDA7000
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
D.C. CHARACTERISTICS
V
P
= 4,5 V; T
amb
= 25
C; measured in Fig.4; unless otherwise specified
Supply voltage (pin 5)
V
P
max.
12 V
Oscillator voltage (pin 6)
V
6-5
V
P
-
0,5 to V
P
+
0,5 V
Total power dissipation
see derating curve Fig.2
Storage temperature range
T
stg
-
55 to
+
150
C
Operating ambient temperature range
T
amb
0 to
+
60
C
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage (pin 5)
V
P
2,7
4,5
10
V
Supply current
at V
P
= 4,5 V
I
P
-
8
-
mA
Oscillator current (pin 6)
I
6
-
280
-
A
Voltage at pin 14
V
14-16
-
1,35
-
V
Output current at pin 2
I
2
-
60
-
A
Voltage at pin 2; R
L
= 22 k
V
2-16
-
1,3
-
V
Fig.2 Power derating curve.
May 1992
5
Philips Semiconductors
Product specification
FM radio circuit
TDA7000
A.C. CHARACTERISTICS
V
P
= 4,5 V; T
amb
= 25
C; measured in Fig.4 (mute switch open, enabled); f
rf
= 96 MHz (tuned to max. signal
at 5
V e.m.f.) modulated with
f =
22,5 kHz; f
m
= 1 kHz; EMF = 0,2 mV (e.m.f. voltage at a source impedance of
75
); r.m.s. noise voltage measured unweighted (f = 300 Hz to 20 kHz); unless otherwise specified.
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Sensitivity (see Fig.3)
(e.m.f. voltage)
for
-
3 dB limiting;
muting disabled
EMF
-
1,5
-
V
for
-
3 dB muting
EMF
-
6
-
V
for S/N = 26 dB
EMF
-
5,5
-
V
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
m
= 1 kHz;
f =
75 kHz
AM signal: f
m
= 1 kHz; m = 80%
AMS
-
50
-
dB
Ripple rejection (
V
P
= 100 mV;
f = 1 kHz)
RR
-
10
-
dB
Oscillator voltage (r.m.s. value)
at pin 6
V
6-5(rms)
-
250
-
mV
Variation of oscillator frequency
with supply voltage (
V
P
= 1 V)
f
osc
-
60
-
kHz/V
Selectivity
S
+
300
-
45
-
dB
S
-
300
-
35
-
dB
A.F.C. range
f
rf
-
300
-
kHz
Audio bandwidth at
V
o
= 3 dB
measured with pre-emphasis (t = 50
s)
B
-
10
-
kHz
A.F. output voltage (r.m.s. value)
at R
L
= 22 k
V
o(rms)
-
75
-
mV
Load resistance
at V
P
= 4,5 V
R
L
-
-
22
k
at V
P
= 9,0 V
R
L
-
-
47
k
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