TEA6825 데이터 시트보기 (PDF) - Philips Electronics
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TEA6825 Datasheet PDF : 48 Pages
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Philips Semiconductors
In Car Entertainment (ICE) car radio
Preliminary specification
TEA6823T; TEA6825T
CHARACTERISTICS FOR ANALOG-TO-DIGITAL CONVERTERS (ADCs) FOR LEVEL AND
MULTI-PATH VOLTAGES
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
ADC for FM level information; note 1
∆V37-35
analog-to-digital conversion
step size
level range
FM STOP
∆Vstop
variation of stop level as function of V42-4
ADC for AM level information; note 2
∆V33-34
∆V33-34
AM STOP
analog-to-digital conversion step size
analog-to-digital conversion level range
∆Vstop
variation of stop level as function of V43-4
ADC for multi-path information; note 3
m
multi-path conversion
step 0
step 1
step 2
step 3
step 4
step 5
step 6
step 7
2
4
8
dB/step
43
56
69
dB
−
16
−
dB/V
2
4
8
dB/step
43
56
69
dB
−
16
−
dB/V
−
−
5
%
−
15
−
%
−
22
−
%
−
28
−
%
−
34
−
%
−
40
−
%
−
46
−
%
−
52
60
%
Notes
1. The FM level information V50-3 is analog-to-digital converted with 4 bits.
2. The AM level information V49-4 is analog-to-digital converted with 4 bits.
3. The multi-path information V40-4 is analog-to-digital converted with 3 bits covering an IF2 amplitude modulation range
m ≤ 0.6; fmod = 20 kHz.
1998 Mar 24
17
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