TEA6845AH Просмотр технического описания (PDF) - Philips Electronics
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TEA6845AH Datasheet PDF : 48 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Product specification
TEA6845AH; TEA6845H
12.2.3 WRITE MODE: DATA BYTE 2
Table 6 Format of data byte 2
BIT 7
PCB7
BIT 6
PCB6
BIT 5
PCB5
BIT 4
PCB4
BIT 3
PCB3
BIT 2
PCB2
BIT 1
PCB1
BIT 0
PCB0
Table 7 Description of data byte 2 bits
BIT
7 to 0
SYMBOL
PCB[7:0]
DESCRIPTION
Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider
word.
12.2.4 WRITE MODE: DATA BYTE 3
Table 8 Format of data byte 3
BIT 7
MUTE
BIT 6
DAA6
BIT 5
DAA5
BIT 4
DAA4
BIT 3
DAA3
BIT 2
DAA2
BIT 1
DAA1
BIT 0
DAA0
Table 9 Description of data byte 3 bits
BIT
7
6 to 0
SYMBOL
MUTE
DAA[6:0]
DESCRIPTION
FM audio mute. If MUTE = 0, then FM audio not muted. If MUTE = 1, then FM audio
muted; writing to programmable divider enabled.
Setting of antenna digital auto alignment.
12.2.5 WRITE MODE: DATA BYTE 4
Table 10 Format of data byte 4
BIT 7
IFMT
BIT 6
RFS2
BIT 5
RFS1
BIT 4
RFS0
BIT 3
IFPR
BIT 2
BND1
BIT 1
BND0
BIT 0
AMFM
Table 11 Description of data byte 4 bits
BIT
7
6 to 4
3
2 and 1
0
SYMBOL
IFMT
RFS[2:0]
IFPR
BND[1:0]
AMFM
DESCRIPTION
IF measuring time. If IFMT = 0, then IF measuring time is 20 ms. If IFMT = 1, then
IF measuring time is 2 ms.
Reference frequency for synthesizer. These 3 bits determine the reference
frequency, see Table 12.
IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 100. If IFPR = 1, then
IF prescaler ratio is 10.
Band switch. These 2 bits select in FM mode band and local or distant, see Table 13;
in AM mode band and AM stereo, see Table 14.
AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode
2001 Apr 12
30
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