TEA6840 データシートの表示（PDF） - Philips Electronics
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TEA6840 Datasheet PDF : 44 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Preliminary specification
TEA6840H
SYMBOL
PARAMETER
CONDITIONS
MIN.
Oscillator divider N1
D/DN1
oscillator divider ratio N1 data byte 4 bit 0 = 0, bit 1 = 0 −
and bit 2 = 0 for FM standard;
bit 1 = 0, bit 2 = 1 for FM EE;
bit 1 = 1, bit 2 = 0 for FM local
data byte 4 bit 0 = 0, bit 1 = 1 −
and bit 2 = 1 for FM WX
Oscillator divider N2
D/DN2
oscillator divider ratio N2 data byte 4 bit 0 = 1, bit 2 = 1; −
AM mode
data byte 4 bit 0 = 1, bit 2 = 0; −
AM mode
Synthesizer
PROGRAMMABLE DIVIDER
D/Dprog
programmable divider
512
ratio
D/Dstep
programmable divider
−
step size
REFERENCE FREQUENCY DIVIDER
D/DNref
crystal oscillator divider fosc = 20.5 MHz; data byte 4 −
ratio Nref
bit 4 = 0, bit 5 = 0 and
bit 6 = 0; fref = 100 kHz
fosc = 20.5 MHz; data byte 4 −
bit 4 = 0, bit 5 = 0 and
bit 6 = 1; fref = 50 kHz
fosc = 20.5 MHz; data byte 4 −
bit 4 = 0, bit 5 = 1 and
bit 6 = 0; fref = 25 kHz
fosc = 20.5 MHz; data byte 4 −
bit 4 = 0, bit 5 = 1 and
bit 6 = 1; fref = 20 kHz
fosc = 20.5 MHz; data byte 4 −
bit 4 = 1, bit 5 = 0 and
bit 6 = 0; fref = 10 kHz
TYP.
2
1
10
5
−
1
205
410
820
1 025
2 050
MAX.
−
−
−
−
32 767
−
−
−
−
−
−
UNIT
1999 Jul 12
13
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