|
|
PDF TEA6886 Data sheet ( Hoja de datos )
| Número de pieza | TEA6886 | |
| Descripción | Up-level Car radio Analog Signal Processor CASP | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TEA6886 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
INTEGRATED CIRCUITS
DATA SHEET
TEA6886HL
Up-level Car radio Analog Signal
Processor (CASP)
Product specification
File under Integrated Circuits, IC01
2000 Nov 21
1 page  
Philips Semiconductors
Up-level Car radio Analog Signal
Processor (CASP)
5 BLOCK DIAGRAM
Product specification
TEA6886HL
handbook, full pagewidth
from
NICE
(AFSAMPLE)
fref
(75.4 kHz)
100
470 kΩ nF
10
nF
68 kΩ
100 nF
6.8 nF
6.8 nF
100 100
nF kΩ
22
nF
from
NICE
(FMHOLD)
FMHOLD 63
AM
mono
input
33 nF 220 kΩ AMHIN 64
AMNBIN 65
220 nF TMUTE 66
10 nF
MPXRDS 67
10 µF
MPX
input
RIN 182 kΩ
TSNC 68
100 kΩ 82 kΩ MPXIN 69
220 33 pF
nF
10 nF FMNCAP 70
3.3 nF
3.3 nF
2.7 nF
2.7 nF
4.7 nF
4.7 nF
DEEML 71
DEEMR 72
FMLBUF 73
FMRBUF 74
TWBAM1 75
TUSN1 76
I2C-bus
to NICE
SDAQ 77
59
120 kHz
HIGH-PASS
AMPLIFIER
AGC
PULSE
SEPARATOR
58 57 56
trigger sensitivity
NOISE
AND
INTERFERENCE
DETECTOR
FM
PULSE
FORMER
55
60 kHz
HIGH-PASS
AND
USN
DETECTOR
sensitivity
STEREO
DECODER
PLL
pilot
ind.
19 kHz
38 kHz
INPUT BUFFER
AND
80 kHz
LOW-PASS
sep.adj.
mute slope
mute start
V/I
CONVERTER
start/
slope
TEA6886HL
MATRIX
AND
SOFT-MUTE
38 kHz
SNC
FM BUFFER
AND
FM NB-GATES
50/75 µs
DE-EMPHASIS
AND
AM STEREO INPUT
de-emphasis
switch
HCC
STEREO
DECODER
OUTPUT
start /
slope
BUS
LEVEL
ADC
(6-BIT)
bus controls
I2C-BUS
AND
CONTROL LOGIC
detector hold
detector reset
test
3 4 56 7
LEVEL
INPUT
BUFFER
20 kHz
BAND-PASS
AND
AMWB
DETECTOR
sensitivity
54 53
AM
GATE
test
AVERAGE
DETECTOR
(MUTE/HCC)
52
A
B
PEAK
DETECTOR
(SNC)
detector
hold
PEAK
DETECTOR
(WBAM2)
PEAK
DETECTOR
(USN2)
AVERAGE
DETECTOR
(WBAM1)
C
D
detector
reset
E
detector
hold
AVERAGE
DETECTOR
(USN1)
F
G
H
8
I2C-bus
to NICE
from AM/FM
level detector
I2C-bus
22 kΩ
22 kΩ
VDD(5 V)
10 nF
MHB818
Fig.1 Block diagram (continued in Fig.2).
2000 Nov 21
5
5 Page 
Philips Semiconductors
Up-level Car radio Analog Signal
Processor (CASP)
Product specification
TEA6886HL
For the period of fast RDS updating soft mute, SNC and
HCC can be put on hold. The AM wideband peak detector
and the ultrasonic noise peak detector are reset by a
switch signal delivered from the TEA6840H via pin
FMHOLD.
The six separate detecting circuits are as follows:
1. The AM wideband noise peak detector is driven from
a 20 kHz band-pass filter connected to the level buffer
output. The time constant is defined by an external
capacitor connected to pin TWBAM2. The output
voltage of the detector is analog-to-digital converted
by a 3-bit ADC.
2. The AM wideband noise average detector is driven
from a 20 kHz band-pass filter connected to the level
buffer output. The time constant is defined by an
external capacitor connected to pin TWBAM1. The
output of the detector is connected to the Stereo Noise
Control (SNC) circuit.
3. The ultrasonic noise peak detector is driven from a
60 kHz high-pass filter connected to the MPX signal
from pin MPXRDS. The time constant is defined by an
external capacitor connected to pin TUSN2. The
output voltage of the detector is analog-to-digital
converted by a 3-bit ADC.
4. The ultrasonic noise average detector is driven from a
60 kHz high-pass filter connected to the MPX signal
from pin MPXRDS. The time constant is defined by an
external capacitor connected to pin TUSN1. The
output of the detector is connected to soft mute control
and stereo noise control circuits.
5. For soft mute and high cut control purposes an
average detector with an externally defined time
constant (TMUTE) is provided. The detector is driven
by level output only. Soft mute and high cut control can
be switched off via the I2C-bus.
6. The stereo noise control peak detector with an
externally defined time constant (TSNC) is driven by
DC level output, AM wideband and ultrasonic noise
outputs. It provides the stereo blend facility (SNC). The
starting point and slope of the stereo blend can be
chosen via the I2C-bus controlled reference voltage.
7.5 Tone/volume control
The tone/volume control part consists of the following
functions:
• Source selector
• Loudness
• Volume 1
• Treble
• Bass
• Volume 2
• Rear Seat Audio (RSA) selector
• Chime adder
• Analog step interpolation
• Audio blend control.
The stages loudness, volume 1, bass and volume 2
include the Analog Step Interpolation (ASI) function. This
minimizes pops by smoothing out the transitions in the
audio signal during switching. The transition time is
I2C-bus programmable in a range of 1 : 24 in four steps.
The stages loudness, volume 1 and volume 2 also have
the Audio Blend Control (ABC) function. This minimizes
pops by automatically incrementing the volume and
loudness controls through each step between their present
settings and the new settings. The speed of the ABC
function is correlated with the transition time of the ASI
function.
All stages are controlled via the I2C-bus.
7.5.1 SOURCE SELECTOR
The source selector allows the selection between
6 sources:
• 2 external stereo inputs (ALI, ARI, BLI and BRI)
• 1 external symmetrical stereo input (CLIP, CRIP and
CCOM)
• 1 external symmetrical mono input (MONOP and
MONON)
• 1 internal stereo input (AM/FM)
• 1 chime/diagnostic mono input (CHIME).
A chime input signal can be sent to any audio output, at
any volume level, via the chime/diagnostic mono input.
2000 Nov 21
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TEA6886.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TEA6880 | Up-level Car radio Analog Signal Processor CASP | NXP Semiconductors |
| TEA6880H | Up-level Car radio Analog Signal Processor | NXP Semiconductors |
| TEA6886 | Up-level Car radio Analog Signal Processor CASP | NXP Semiconductors |
| TEA6886HL | Up-level Car radio Analog Signal Processor CASP | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |