Philips Semiconductors
Product specification
Up-level Car radio Analog Signal
Processor (CASP)
CONTENTS
1
1.1
1.2
1.3
1.4
2
3
4
5
6
7
7.1
7.2
7.3
7.4
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
7.5.7
7.5.8
8
9
10
FEATURES
General
Stereo decoder and noise blanking
Weak signal processing
Audio pre-amplifier
GENERAL DESCRIPTION
ORDERING INFORMATION
QUICK REFERENCE DATA
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
Stereo decoder
FM noise blanker
AM noise blanker
Multipath/fading detection and weak signal
control
Tone/volume control
Source selector
Loudness
Volume 1
Treble
Bass
Volume 2
RSA selector
Chime adder
LIMITING VALUES
THERMAL CHARACTERISTICS
CHARACTERISTICS
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
11.11
11.12
11.13
11.14
11.15
11.16
12
13
14
14.1
14.2
14.3
14.4
14.5
15
16
17
18
I
2
C-BUS PROTOCOL
TEA6880H
Read mode: 1st data byte
Read mode: 2nd data byte
Subaddress byte for write
Write mode: subaddress 0H
Write mode: subaddress 1H
Write mode: subaddress 2H
Write mode: subaddress 3H
Write mode: subaddress 4H
Write mode: subaddress 5H
Write mode: subaddress 6H
Write mode: subaddress 7H
Write mode: subaddress 8H
Write mode: subaddress 9H
Write mode: subaddress AH
Write mode: subaddress BH
Write mode: subaddress CH
INTERNAL CIRCUITRY
PACKAGE OUTLINE
SOLDERING
Introduction to soldering surface mount
packages
Reflow soldering
Wave soldering
Manual soldering
Suitability of surface mount IC packages for
wave and reflow soldering methods
DATA SHEET STATUS
DEFINITIONS
DISCLAIMERS
PURCHASE OF PHILIPS I
2
C COMPONENTS
2003 Feb 04
2
Philips Semiconductors
Product specification
Up-level Car radio Analog Signal
Processor (CASP)
1
1.1
FEATURES
General
TEA6880H
•
I
2
C-bus compatible
•
Digital alignment/adjustment via I
2
C-bus:
– FM noise blanker sensitivity
– FM stereo noise canceller
– FM High Cut Control (HCC)
– FM stereo separation.
•
FM audio processing hold for RDS updating; holds the
detectors for the FM weak signal processing in their
present state
•
FM bandwidth limiting; limits the bandwidth of the FM
audio signal with external capacitors
•
AM stereo input; AM stereo audio can be fed in at the
pins for the de-emphasis capacitors; this will provide
8 dB of gain to the AM audio.
1.2
Stereo decoder and noise blanking
•
Volume 1 control from +20 to
−56
dB in 1 dB steps;
programmable 20 dB loudness control included
•
Volume 2 control from 0 to
−56
dB in 1 dB steps,
−56, −58.5, −62, −68
dB and mute
•
Programmable loudness control with bass boost as well
as bass and treble boost
•
Treble control from
−14
to +14 dB in 2 dB steps
•
Bass control from
−18
to +18 dB in 2 dB steps with
selectable characteristic
•
Analog Step Interpolation (ASI) minimizes pops by
smoothing out the transitions in the audio signal when a
switch is made
•
Audio Blend Control (ABC) minimizes pops by
automatically incrementing the volume and loudness
controls through each step between their present
settings and the new settings
•
Rear Seat Audio (RSA) can select different sources for
the front and rear speakers
•
Chime input: can be sent to any audio output, at any
volume level
•
Chime adder circuit: chime input can also be summed
with left front and/or right front audio, or be turned off
2
GENERAL DESCRIPTION
•
FM stereo decoder
•
Accepts FM multiplex signal and AM audio at input
•
Pilot detector and pilot canceller
•
De-emphasis selectable between 75 and 50
µs
•
AM noise blanker: impulse noise detector and an audio
hold.
1.3
Weak signal processing
•
FM weak signal processing: six signal condition
detectors, soft mute, stereo noise canceller (blend) and
high cut control (roll-off).
1.4
Audio pre-amplifier
•
Source selector for 6 sources: 2 stereo inputs external
(A and B), 1 symmetrical stereo input (C), 1 symmetrical
mono input (D), 1 internal stereo input (AM or FM) and
1 chime/diagnostic mono input
3
ORDERING INFORMATION
TYPE
NUMBER
TEA6880H
The TEA6880H is a monolithic bipolar integrated circuit
providing the stereo decoder function and ignition noise
blanking facility combined with source selector and
tone/volume control for AM/FM car radio applications. The
device operates with a power supply voltage range from
7.8 to 9.2 V and a typical current consumption of 40 mA.
PACKAGE
NAME
QFP64
DESCRIPTION
plastic quad flat package; 64 leads (lead length 1.95 mm);
body 14
×
20
×
2.8 mm
VERSION
SOT319-2
2003 Feb 04
3
Philips Semiconductors
Product specification
Up-level Car radio Analog Signal
Processor (CASP)
4
QUICK REFERENCE DATA
SYMBOL
V
CC
I
CC
S/N
THD
α
cs
V
o(rms)
PARAMETER
supply voltage
supply current
CONDITIONS
MIN.
7.8
32
−
−
40
FM: 91% modulation;
AM: 100% modulation;
f
mod
= 400 Hz
V
CC
= 8.5 V; THD
≤
0.1%
1 dB steps
840
TEA6880H
TYP.
8.5
40
MAX.
9.2
48
−
−
−
1060
UNIT
V
mA
Stereo decoder path
signal-to-noise ratio
total harmonic distortion
channel separation
output voltage level at pins ROPO
and LOPO (RMS value)
78
0.1
−
950
dB
%
dB
mV
Tone/volume control
V
o(max)(rms)
G
v
G
step(vol)
G
bass
G
treble
(S+N)/N
THD
RR
100
CMRR
maximum output voltage level at
pins LF, LR, RF and RR (RMS value)
voltage gain
step resolution (volume)
bass control
treble control
signal-plus-noise to noise ratio
total harmonic distortion
ripple rejection
common mode rejection ratio
differential stereo input
V
o
= 2.0 V; G
v
= 0 dB;
unweighted
V
o(rms)
= 1.0 V; G
v
= 0 dB
V
ripple(rms)
< 200 mV;
f = 100 Hz; G
v
= 0 dB
2000
−112
−
−18
−14
−
−
−
−
48
−
−
1
−
−
2
107
0.01
70
53
−
+20
−
+18
+14
−
−
−
−
−
mV
dB
dB
dB
dB
dB
dB
%
dB
dB
G
step(treble, bass)
step resolution (bass and treble)
2003 Feb 04
4
Microcontroller MCU
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