TEA6825T PHILIPS [NXP Semiconductors], TEA6825T Datasheet - Page 28

• Manufacturer Part Number: TEA6825T
• Description: In Car Entertainment ICE car radio
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 4 Data to be received by the IC for data byte 2
Table 5 Data to be transmitted by the IC for data byte 1;
Note
1. The analog-to-digital conversion for multi-path and
1998 Mar 24
In Car Entertainment (ICE) car radio
BIT
BIT
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
level will be done during a transmission of any address
to the I
AM/FM; AM mode
AM/FM; FM mode
divider for AM mixer; divide by 2
divider for AM mixer; divide by 6
measure time IF-count; 40 ms
measure time IF-count; 4 ms
SDR off
SDR on
IF-prescaler division rate;
divide by 200
IF-prescaler division rate;
divide by 25
sensitivity unchanged
multi-path sensitivity switch; less
sensitivity by an offset of m = 10%
temperature compensation of
unweighted voltage level;
temperature coefficient as specified
in Chapter “Characteristics”
noise blanker deactivated by high
modulation
noise blanker not deactivated
bit 1 level information
bit 2 level information
MSB (bit 3) level information
LSB multi-path information
multi-path information
MSB multi-path information
stereo pilot presence; bit 6 = 1
LSB (bit 0) level information
note 1
2
temperature compensation off
temperature compensation on
C-bus.
DESCRIPTION
DESCRIPTION
bit 0 = 0
bit 0 = 1
bit 1 = 0
bit 1 = 1
bit 2 = 0
bit 2 = 1
bit 3 = 0
bit 3 = 1
bit 4 = 0
bit 4 = 1
bit 5 = 0
bit 5 = 1
bit 6 = 0
bit 6 = 1
bit 7 = 0
bit 7 = 1
RESULT
28
Table 6 Data to be transmitted by the IC for data byte 2
R
Table 7 Division ratios
Note
1. All specified frequencies are valid for a crystal
EFERENCED FREQUENCY GENERATION
BIT
0
1
2
3
4
5
6
7
oscillator frequency of 61.5 MHz.
DIVISION RATIO
LSB of the IF-counter
IF-counter
IF-counter
IF-counter
IF-counter
IF-counter
IF-counter
MSB of the IF-counter
20500
12300
6150
4100
2460
1230
TEA6823T; TEA6825T
DESCRIPTION
Preliminary specification
FREQUENCY
REFERENCE
(kHz)
10
15
25
50
3
5
(1)