TEA6824T Просмотр технического описания (PDF) - Philips Electronics
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TEA6824T Datasheet PDF : 36 Pages
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Philips Semiconductors
In Car Entertainment (ICE) car radio
Preliminary specification
TEA6824T
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Ibias(22-23)
ILI(22-23)
mixer bias current pins 22 and 23
mixer leakage current
pins 22 and 23
in FM position
5
6
−
−
7
mA
2
µA
I22IF2/V27-24IF1
Ri(27-24)
Ci(27-24)
Ro(22-23)
Co(22-23)
IP3
conversion gain
input resistance between
pins 27 and 24
input capacitance between
pins 27 and 24
output resistance between
pins 22 and 23
output capacitance between
pins 22 and 23
third order intermodulation
2.2 2.7
300 330
−
5
10 20
−
5
−
137
3.4 mS
360 Ω
8
pF
−
kΩ
10 pF
−
dBµV
AM DETECTOR; see notes 4 and 5
V48-4(rms)
V33-34(rms)
AF output level (RMS value)
sensitivity voltage (RMS value)
RL48 > 500 kΩ;
190 240
100 µV ≤ V33-34 ≤ 300 mV
S------N+-----N--- = 26 dB
−
50
290 mV
75 µV
S------N+-----N--- = 46 dB
−
200
400 µV
Ri(33-34)
Ci(33-34)
Ro48
Co48
S------N+-----N---
AM-IF2 minimum input voltage
(RMS value)
AM-IF2 maximum input voltage
(RMS value)
IF2 input resistance between
pins 33 and 34
IF2 input capacitance between
pins 33 and 34
output resistance pin 48
output capacitance pin 48
signal-plus-noise-to-noise ratio
THD ≤ 5%; m = 0.8
THD ≤ 5%; m = 0.8
−
−
800 −
1.8 2.0
−
10
27 33
−
−
54 60
100 µV
−
mV
2.2 kΩ
15 pF
39 kΩ
10 pF
−
dB
THD
total harmonic distortion
m = 0.8;
−
1.5
300 µV ≤ V33-34 ≤ 200 mV
3.0 %
Notes to the Characteristics
1. For typical adjusting range see Fig.8.
2. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer.
3. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable
by the I2C-bus: division by 6 (AM-IF1 = 10.7 MHz); division by 2 (AM-IF1 = 30 MHz).
4. For typical AM level curve see Fig.10.
5. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%.
1997 May 05
11
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