Philips TEA6101T-N2 Datasheet
DATA SH EET
Objective specification
File under Integrated circuits, IC01
May 1992
INTEGRATED CIRCUITS
TEA6101/T
Antenna diversity circuit
May 1992 2
Philips Semiconductors Objective specification
Antenna diversity circuit TEA6101/T
FEATURES
• Ability to switch between up to four antennae
• Switching signal derived from two signals: the audio and
the level signals
• Floating switching threshold adjusts switching rate to
prevailing circumstances:
– increasing threshold due to excessive noise
– increasing threshold due to numerous level variations
• Memory for the most favourable antenna signal to
overcome unnecessary switching
• Signal-dependent `soft` muting circuit
• Mode selection to the first antenna receiving an AM
signal whilst the diversity system is reset.
APPLICATIONS
• Car radio receivers
• Mobile radio communications equipment
GENERAL DESCRIPTION
Intended for multi-antenna FM car radio reception
(antenna diversity system), the TEA6101/T selects the
most favourable signal from one of up to four antennae.
Founded upon audible signal disturbance the criteria are
derived from two signals: high frequency components (e.g.
spikes due to noise and multipath reception) and
variations in signal level as a result of multipath reception
or fluctuations in field strength.
QUICK REFERENCE DATA
ORDERING INFORMATION
Notes
1. SOT102-1; 1996 September 10.
2. SOT163-1; 1996 September 10.
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
P
positive supply voltage − 8.5 − V
I
P
positive supply current − 14 − mA
V
I(p-p)
audio input voltage (peak-to-peak value) −−3V
I
os
antenna switch output current (source/sink) −−7mA
V
L
−3 dB audio attenuation (soft mute) − 1.45 − V
T
amb
operating ambient temperature range −30 − +85 °C
EXTENDED TYPE NUMBER
PACKAGE
PINS PIN POSITION MATERIAL CODE
TEA6101 18 DIL plastic SOT102
(1)
TEA6101T 20 SO plastic SOT163A
(2)
May 1992 3
Philips Semiconductors Objective specification
Antenna diversity circuit TEA6101/T
This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in
_white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in
white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...
handbook, full pagewidth
MBA543 - 1
TEA6101T
VOLTAGE
REFERENCE
ADDER
ADDER
ADDER
100
Ω
R3
TIMING
MODE SELECT
MEMORY
COMPARATOR
4 - STAGE
JOHNSON
COUNTER
19
18
17
16
&
1
STABILIZER
OFFSET
12
k
Ω
R1
1.5
kΩ
LOW - PASS
FILTER
HIGH - PASS
FILTER
offset
voltage
V
(min)
ADDER
&
&
&&
V
ref
V
U
V
I
3
MUTE
MONOSTABLE
MULTIVIBRATOR
offset
complete stop reset
reset
0.47
µF
audio input
33
nF
ADDER
ADDER
VOLTAGE
REFERENCE
33
kΩ
1.5
kΩ
1
µF
R2
14
20
k
Ω
offset
voltage
20
k
Ω
3.6 V
delay soft mute
level input direct
3.3
nF
level input
via
capacitor
1
µF
7
5
6
4
8
11 10 13 9 1
20
12
15 2
ground
47 nF
level
averaging
test pin
memory
timing
control
to
antenna
switch
LOAD
reference
voltage
supply
noise
averaging
0.1 µF
not connected
audio output
modulus output
3.3
kΩ
Fig.1 Block diagram.
May 1992 4
Philips Semiconductors Objective specification
Antenna diversity circuit TEA6101/T
PINNING
The pin numbers given in parenthesis refer to the
TEA6101
SYMBOL PIN DESCRIPTION
V
P
1 (1) positive supply
CTRL 2 (2) control input
AUDIN 3 (3) audio input
AUDOUT 4 (4) audio output
LID 5 (5) level input direct
LIC 6 (6) level input via capacitor
DSM 7 (7) delay soft mute
MODOUT 8 (8) modulus output
V
ref
9 (9) reference voltage
n.c. 10 − not connected
n.c. 11 − not connected
TEST 12 (10) test pin
NOAV 13 (11) noise averaging
LEAV 14 (12) level averaging
MT 15 (13) memory timing
OUT4 16 (14) output 4
OUT3 17 (15) output 3
OUT2 18 (16) output 2
OUT1 19 (17) output 1
GND 20 (18) ground
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
MBA542 - 1
n.c.
n.c.
TEA6101T
CTRL
AUDIN
AUDOUT
LID
LIC
DSM
MODOUT
GND
OUT1
OUT2
OUT3
OUT4
MT
LEAV
NOAV
TEST
V
P
V
REF
Fig.2 Pin configuration (TEA6101T).
handbook, halfpage
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
CTRL
AUDIN
AUDOUT
LID
LIC
DSM
MODOUT
MBA541 - 1
GND
OUT1
OUT2
OUT3
OUT4
MT
LEAV
NOAV
TEST
TEA6101
V
P
V
REF
Fig.3 Pin configuration (TEA6101).
Loading...