TEA6821T Просмотр технического описания (PDF) - Philips Electronics
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TEA6821T Datasheet PDF : 47 Pages
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Philips Semiconductors
ICE car radio
Preliminary specification
TEA6821T
CHARACTERISTICS
V56-4 = V28-4 = 8.5 V, V5-4 = V52-55 = 5 V, Tamb = +25 °C unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Current consumption
Is1
I56
I28
I19 + I20
Is1
I56
I22 + I23
Is2
supply current 1
FM
supply current 1at pin 56
supply current 1 at pin 28
supply current 1 at pins 19 and 20
supply current 1
AM
supply current 1at pin 56
supply current 1 at pins 22 and 23
supply current 2 at pin 5
FM
AM
Is3
supply current 3 at pin 52
FM IF path
24
30
36
mA
16
20
24
mA
2.4 3.0 3.6 mA
4.8 6.0 7.2 mA
18
24
30
mA
9.5 12
15
mA
8
10
12.5 mA
18
21
25
mA
14
17
21
mA
8
10
12
mA
FM mixer
R13-14
C13-4, C14-4
Ropt
R19-20
C19-4, C20-4
I19IF2/V13-14IF1
I19, I20
V19-20
IP3
input resistance
input capacitance
optimum generator resistance
output resistance
output capacitance
conversion gain
mixer bias current
mixer leakage current
maximum output voltage
(peak-to-peak value)
third order intermodulation
Oscillator
fosc
∆fosc/∆T
R1
C0
oscillator frequency
oscillator spread
temperature dependence of
oscillator frequency
crystal motional resistance
crystal shunt capacitance
FM IF2 amplifier
V29-4/V27-24 amplifier gain
V27-24
maximum input voltage for 1 dB
compression point (RMS value)
in AM position
crystal type PHILIPS
9922 521 00098
loaded with 330 Ω;
see Fig.9
5
7
−
−
3
4.5
−
1.2 −
15
20
−
−
5
7
1.65 1.9 2.2
2.4 3.0 3.6
−
−
2
12.0 14.0 −
114 124 −
kΩ
pF
kΩ
kΩ
pF
mS
mA
µA
V
dBµV
−
61.5 −
MHz
−
−
250 Hz
−
30
−
ppm/K
−
−
70
Ω
−
−
5
pF
8
10
12
dB
80
110 −
mV
September 1993
12
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