TDA4470-MFLG3 [TEMIC]
Multistandard Video-IF and Quasi Parallel Sound Processing; 多标准视频- IF和准并行处理声音
| 型号： | TDA4470-MFLG3 |
| 厂家： | 
TEMIC SEMICONDUCTORS |
| 描述： | Multistandard Video-IF and Quasi Parallel Sound Processing |
| 文件： | 总16页 (文件大小：191K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TDA4470-M
Multistandard Video-IF and Quasi Parallel Sound Processing
Description
The TDA4470 is an integrated bipolar circuit for multi- modulation (e.g., B/G standard), positive modulation
standard video/sound IF (VIF/SIF) signal processing in (e.g., L standard) and the AM, FM/NICAM sound IF
TV/VCR and multimedia applications. The circuit signals.
processes all TV video IF signals with negative
Features
5 V supply voltage; low power consumption
Intercarrier output signal is gain controlled (necessary
for digital sound processing)
Active carrier generation by FPLL principle
(frequency-phase-locked-loop) for true
synchronous demodulation
Complete alignment-free AM demodulator with gain
controlled AF output
Very linear video demodulation, good pulse response
and excellent intermodulation figures
Separate SIF-AGC with average detection
Two independent SIF inputs
VCO circuit operates at picture carrier frequency, the
VCO frequency is switchable for L’-mode
Parallel operation of the AM demodulator and QPS
mixer (for NICAM-L stereo sound)
Alignment-free AFC without external reference
circuit, polarity of the AFC curve is switchable
Package and relevant pinning is compatible with the
single standard version TDA4472, which simplifies
the design of an universal IF module
VIF-AGC for negative modulated signals (peak sync.
detection) and for positive modulation (peak white/
black level detector)
Tuner AGC with adjustable take over point
Alignment-free quasi parallel sound (QPS) mixer for
FM/NICAM sound IF signals
Package: SDIP28, SO28
Ordering Information
Extended Type Number
TDA4470-MSD
TDA4470-MFLG3
Package
SDIP28
SO28
Remarks
Delivery in taped form
TELEFUNKEN Semiconductors
1 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Block Diagram
L’ switch
Loop
filter
Offset
comp.
VCO
20
(optional)
26
18
21
14
VCO
+
phase shift
Control
AFC
0°
FPLL
90°
19
22
AFC
switch
AFC
VIF amp
6
12
13
VIF
Video
7
C
AGC
Video det.
8
Standard
switch
AGC
(VIF)
Standard
15
C
BL
Tuner
11
10
23
17
V
S
Tuner
AGC
Supply
Take over
point
C
Ref
FM det.
27
28
24
SIF 2
Intercarrier
(FM / NICAM)
SIF amp
SIF input
switch
3
1
2
25
SIF 1
AGC
(SIF)
AF
(AM)
AM det.
5
4,9,16
95 10851
C
AGC
Figure 1. Block diagram
2 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Circuit Description
The oscillator signal passes a phase shifter and supplies
the in-phase signal (0°) and the quadrature signal (90°)of
the generated picture carrier.
Vision IF Amplifier
The video IF signal (VIF) is fed through a SAW filter to
the differential input (Pin 6-7) of the VIF amplifier. This
amplifier consists of three AC-coupled amplifier stages.
Each differential amplifier is gain controlled by the auto-
matic gain control (VIF-AGC). The output signal of the
VIF amplifier is applied to the FPLL carrier generation
and the video demodulator.
Video Demodulation and Amplifier
The video IF signal, which is applied from the gain
controlled IF amplifier, is multiplied with the inphase
component of the VCO signal. The video demodulator is
designed for low distortion and large bandwidth. The
demodulator output signal passes an integrated low pass
filter for attenuation of the residual vision carrier and is
fed to the video amplifier. The video amplifier is realized
by an operational amplifier with internal feedback and
8 MHz bandwidth (–3 dB). A standard dependent dc level
shift in this stage delivers the same sync. level for positive
and negative modulation. An additional noise clipping is
provided. The video signal is fed to VIF-AGC and to the
video output buffer. This amplifier with a 6 dB gain offers
easy adaption of the sound trap. For nominal video IF
Tuner-and VIF-AGC
At Pin 8, the VIF-AGC charges/discharges the AGC
capacitor to generate a control voltage for setting the gain
of the VIF amplifier and tuner in order to keep the video
output signal at a constant level. Therefore, in the case of
all negative modulated signals (e.g., B/G standard) the
sync. level of the demodulated video signal is the
criterion for a fast charge/discharge of the AGC capacitor.
For positive modulation (e.g., L standard) the peak white
level of video signal controls the charge current. In order
to reduce reaction time for positive modulation, where a
large time constant is needed, an additional black level
detector controls the discharge current in the event of
decreasing VIF input signal. The control voltage (AGC
voltage at Pin 8) is transferred to an internal control
signal, and is fed to the tuner AGC to generate the tuner
AGC current at Pin 11 (open collector output). The take
over point of the tuner AGC can be adjusted at Pin 10 by
a potentiometer or an external dc voltage (from interface
circuit or microprocessor).
modulation the video output signal at Pin 12 is 2 V
pp.
Sound IF Amplifier and SIF-AGC
The SIF amplifier is nearly identical with the 3-stage VIF
amplifier. Only the first amplifier stage exists twice and
is switchable by a control voltage at Pin 3. Therefore with
a minimal external expense it is possible to switch
between two different SAW filters. Both SIF inputs
features excellent cross-talk attenuation and an input
impedance which is independent from the switching
condition.
FPLL, VCO and AFC
The SIF-AGC is related to the average level of AM- or
FM-carrier and controls the SIF amplifier to provide a
constant SIF signal to the AM demodulator and QPS
mixer.
The FPLL circuit (frequency phase locked loop) consists
of a frequency and phase detector to generate the control
voltage for the VCO tuning. In the locked mode, the VCO
is controlled by the phase detector and in unlocked mode,
the frequency detector is superimposed. The VCO
operates with an external resonance circuit (L and C par-
allel) and is controlled by internal varicaps. The VCO
control voltage is also converted to a current and repre-
sents the AFC output signal at Pin 22. At the AFC switch
(Pin 19) three operating conditions of the AFC are pos-
sible: AFC curve “rising” or “falling” and AFC “off”.
AM Demodulator
The alignment-free AM demodulator is realized by a
synchronous detector. The modulated SIF signal from the
SIF amplifier output is multiplied in phase with the
limited SIF signal (AM is removed). The AF signal of the
demodulator output is fed to the output amplifier and to
the SIF-AGC. For all TV standards with negative video
modulation (e.g., B/G standard), the AF output signal
(Pin 25) is switched off by the standard switch.
A practicable VCO alignment of the external coil is the
adjustment to zero AFC output current at Pin 22. At center
frequency the AFC output current is equal to zero.
Furthermore, at Pin 14, the VCO center frequency can be
switched for setting to the required L’ value (L’ standard).
Quasi-Parallel-Sound (QPS) Mixer
The QPS mixer is realized by a multiplier. The SIF signal
The optional potentiometer at Pin 26 allows an offset (FM or NICAM carrier) is converted to the intercarrier
compensation of the VCO phase for improved sound frequency by the regenerated picture carrier (quadrature
quality (fine adjustment). Without a potentiometer (open signal) which is provided from the VCO. The intercarrier
circuit at Pin 26), this offset compensation is not active.
signal is fed via an output amplifier to Pin 24.
TELEFUNKEN Semiconductors
3 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Standard Switch
AFC Switch
The AFC output signal at Pin 22 can be controlled by a
switching voltage at Pin 19. It is possible to select an AFC
output signal with a rising- or falling AFC curve and to
switch off the AFC.
To have equal polarity of the video output signal the
polarity can be switched in the demodulation stage in
accordance with the TV standard. Additional a standard
dependent dc level shift in the video amplifier delivers the
same sync. level. In parallel to this, the correct VIF-AGC
is selected for positive or negative modulated VIF signals.
In the case of negative modulation (e.g., B/G standard)
the AM output signal is switched off. For positive modu-
lation (L standard) the AM demodulator and QPS mixer
is active. This condition allows a parallel operation of the
AM sound signal and the NICAM-L stereo sound.
VCR Mode
For the VCR mode in a TV set (external video source
selected), it is recommendable to switch off the IF circuit.
With an external switching voltage at Pin 6 or 7, the IF
amplifiers are switched off and all signal output levels at
Pins 12, 24, and 25 are according to the internal dc
voltage.
L’ Switch
Internal Voltage Stabilizer
With a control voltage at Pin 14 the VCO frequency can
be switched for setting to the required L’ value (L’
standard). Also a fine adjustment of the L’-VCO center
frequency is possible via a potentiometer. The L’ switch
is only active for positive modulated video IF-signals
(standard switch in L mode).
The internal bandgap reference ensures constant perfor-
mance independent of supply voltage and temperature.
4 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Pin Description
Pin
1, 2
3
Symbol
V ,
Function
SIF1 input (symmetrical)
Input selector switch
Ground
V
i,SIF2
V
1
2
3
4
28
27
26
i,SIF1
i SIF1
V
sw
V
i,SIF2
V
i,SIF1
4, 9, 16
5
GND
C
V
SIF-AGC (time constant)
VIF input (symmetrical)
VIF-AGC (time constant)
Take over point, tuner AGC
Tuner AGC output current
Video output
AGC
V
sw
R
comp
6, 7
8
i, VIF
C
AGC
10
R
top
tun
GND
V
o,AM
25
24
23
22
21
20
19
18
17
16
15
11
I
12
V
o,vid
C
AGC
V
o,FM
5
6
13
V
Standard switch
SW
SW
14
V
L’ switch
V
i,VIF
V
V
S
15
C
bl
Black level capacitor
Internal reference voltage
Loop filter
17
C
ref
V
AFC
7
i,VIF
18
LF
19
V
sw
AFC switch
C
V
AGC
20, 21
22
V
VCO
VCO circuit
VCO
8
V
AFC
AFC output
23
V
S
Supply voltage
GND
V
V
9
VCO
sw
24
V ,
O FM
V
O, AM
Intercarrier output
AF output – AM sound
Offset compensation
SIF 2 input (symmetrical)
25
R
top
10
11
12
26
R
comp
27, 28
V
i, SIF2
I
tun
LF
C
V
Ref
o,vid
V
sw
V
sw
GND
13
14
C
BL
94 8680
Figure 2. Pinning
TELEFUNKEN Semiconductors
5 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Absolute Maximum Ratings
Reference point Pin 4 (9, 16), unless otherwise specified
Parameters
Symbol
Value
Unit
Supply voltage
SDIP28 package
SO28 package
Supply current
Pin 23
V
V
9.0
6.0
V
V
S
S
Pin 23
I
93
mA
s
Power dissipation
SDIP28 package
SO28 package
P
P
840
560
mW
mW
Output currents
Pins 12, 24 and 25
I
5
mA
out
External voltages
Pins 1, 2, 5 to 8, 10, 12, 14, 17, 18 and 24 to 28
Pins 15, 20 and 21
Pin 11
+4.5
+3.5
+13.5
V
V
V
V
V
ext
Pins 3, 13, 19 and 22
V
S
Junction temperature
Storage temperature
Electrostatic handling all pins
T
+125
–25 to +125
300
°C
°C
V
j
T
stg
*)
V
ESD
*)
Equivalent to discharging a 200 pF capacitor trough a 0 resistor.
Operating Range
Parameters
Symbol
Value
Unit
Supply voltage range
SDIP28 package
Pin 23
V
S
V
S
4.5 to 9.0
4.5 to 6.0
V
V
SO28 package
Ambient temperature
T
amb
–10 to +85
°C
Thermal Resistance
Parameters
Symbol
Maximum
Unit
Junction ambient, when soldered to PCB
SDIP28 package
R
thJA
R
thJA
55
75
K/W
K/W
SO28 package
6 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Electrical Characteristics
V = +5 V, T
= +25°C; reference point Pin 4 (9, 16), unless otherwise specified
S
amb
Parameters
DC-supply
Test Conditions / Pins
Pin 23
Symbol
Min.
Typ.
Max.
Unit
Supply voltage – SDIP28
– SO28
V
S
V
S
4.5
4.5
5.0
5.0
9.0
5.5
V
V
Supply current
I
85
93
mA
S
VIF-input
Pin 6-7
Input sensitivity, (RMS value)
Input impedance
Input capacitance
For FPLL locked
See note 1
See note 1
v
R
C
80
1.2
2
120
V
RMS
k
pF
in
in
in
VIF-AGC
Pins 8 and 15
IF gain control range
AGC capacitor
Black level capacitor
Switching voltage: VCR mode
Switching current: VCR mode
Tuner-AGC
G
C
AGC
60
65
2.2
100
4.0
50
dB
F
nF
V
v
Pin 8
Pin 15
C
BL
See note 2
See note 2
V
sw
sw
I
A
Pins 10 and 11 see note 3
Available tuner-AGC current
Allowable output voltage
IF slip – tuner AGC
IF input signal for minimum
take over point
I
V
∆G
v
1
0.3
2
8
4
13.5
10
4
mA
V
dB
mV
tun
11
Current I : 10 to 90%
tun
IF
R
top
= 10 k (V = 4.5 V)
top
in
IF input signal for maximum
take over point
Variation of the take over point ∆T
R
= 0, (V = 0.8 V)
v
40
mV
dB
top
top
in
= 55°C
∆v
2
3
amb
in
by temperature
VIF-AGC: G = 46 dB
v
FPLL and VCO
Pins 18, 20, 21 and 26 see note 4
Max. oscillator frequency
Vision carrier capture range
For carrier generation
= 38.9 MHz,
f
∆f
70
±1.5
MHz
MHz
vco
f
±2
vco
cap
C
vco
= 8.2 pF
Oscillator drift (free running) as See note 5,
∆f/
–0.3
%
∆T
function of temperature
∆Τ
= 55°C,
amb
C
vco
= 8.2 pF,
f
= 38.9 MHz
vco
Video output
Pin 12
Output current – source
– sink
±I
5
3
mA
mA
12
2
Output resistance
See note 1
Peak-to-peak value
Between B/G and L
R
100
2.2
10
out
Video output signal
Difference of the video signals
Sync. level
v ,
1.8
2.0
Vpp
%
V
o vid
∆v
o,vid
sync
V
1.2
3.4
Zero carrier level for neg.
V
13
= V
V
DC
V
S
modulation, ultra white level
V = 3 V
8
Zero carrier level for pos.
modulation, ultra black level
Supply voltage influence on the
ultra white and ultra black level
Video bandwidth (–3 dB)
V
= 0
V
1.15
1
V
13
DC
V = 3 V
8
∆V/
%/V
MHz
V
R ≥ 1 k , C ≤ 50 pF
L
B
6
8
L
TELEFUNKEN Semiconductors
7 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Parameters
Video frequency response over
the AGC range
Test Conditions / Pins
Symbol
∆Β
Min.
Typ.
Max.
2.0
Unit
dB
Differential gain error
Differential phase error
Intermodulation
1.07 MHz
Video signal to noise ratio
Residual vision carrier
DG
DP
2
2
60
5
5
%
deg
dB
See note 6
52
56
IM
Weighted, CCIR-567
S/
N
60
2
dB
mV
v
res1
10
fundamental wave 38.9 MHz
and second harmonic 77.8 MHz
Lower limiting level
Upper limiting level
Ripple rejection
Below sync level
Above ultra white level
See note 1, Pin 23/Pin 12
∆V
∆V
RR
400
600
mV
mV
dB
lim1
lim2
35
Standard switch
Pin 13
Control voltage for mode 1:
neg. modulated video-IF signals
and AM/NICAM sound
Control voltage for mode 2:
pos. modulated video-IF signals
and AM/L-NICAM sound
See note 7
V
V
2.0
V
V
V
A
SW
SW
SW
S
0
0.8
Switching current
AFC output
I
±100
Pin 22
Control slope
∆I/
0.7
0.25
A/kHz
%
∆f
Frequency drift by temperature Related to the picture
carrier frequency
Output voltage
upper limit
0.6
0.4
V
AFC
V –0.4
S
V
V
lower limit
Output current
I
±0.2
mA
AFC
AFC switch
Pin 19
Control voltage: AFC “off”
AFC curve rising
AFC curve falling
Switching current
V
0
1.5
3.5
0.8
2.5
V
V
V
SW
See note 8
See note 9
V
S
I
±100
A
SW
L’ switch
Pin 14
Control voltage:
L’ frequency +
L’-VCO alignment
L standard
V
SW
0
3.0
V
3.4
V
S
V
A
Switching current
SIF inputs
Input sensitivity
(RMS value)
V
SW
= 0
I
700
80
SW
Pin 1-2, 27-28
Output signal
at Pin 24/25: –3 dB
v
120
V
RMS
in
Input impedance
Input capacitance
SIF-AGC
See note 1
See note 1
R
C
1.2
2
k
pF
in
in
Pin 5
IF gain control range
AGC capacitor
G
60
65
10
dB
F
v
C
AGC
Intercarrier output-FM
DC output voltage
Pin 24
see note 10
V
DC
2
V
8 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Parameters
Output resistance
Sound IF output voltage
(5.5 MHz output voltage)
Test Conditions / Pins
See note 1
v = 10 mV
in
Symbol
Min.
180
Typ.
150
250
Max.
Unit
R
out
out
v
350
mV
RMS
Weighted signal to noise ratio:
(CCIR 468)
Ref. signal:
v = 10 mV;
in
FM dev. = ±27 kHz
f
= 1 kHz;
mod
tested with the double
FM demod. U2860B;
B/G modulated VIF signal
Black screen: Channel 1/2
Grid pattern: Channel 1/2
Grey screen 50%: Channel
1/2
S/N
S/N
S/N
60/58
54/52
60/57
dB
dB
dB
Ripple rejection
AF output-AM
DC output voltage
Output resistance
AF output voltage
Total harmonic distortion
See note 1, Pin 23/Pin 24
Pin 25
RR
35
dB
V
see note 11
V
R
2.2
150
500
1
DC
See note 1
m = 54%
out
v
oAF
400
630
2
mV
RMS
THD
%
f
= 1 kHz and 12.5 kHz
mod
Signal to noise ratio
Reference: m = 54 %,
= 1 kHz,
S/N
65
dB
f
mod
22 kHz low pass filter
See note 1, Pin 23/Pin 25
Pin 3
Ripple rejection
SIF input selector switch
RR
28
dB
Control voltage:
input 1 active
input 2 active
See note 12
V
SW
2.0
0
V
0.8
V
V
S
Switching current
I
±100
A
SW
Notes
1.)
This parameter is given as an application information and not tested during production.
In VCR mode the VIF- and SIF path is switched off.
2.)
3.)
4.)
Adjustment of turn over point (delayed tuner AGC) with external resistor R or external voltage V possible.
top
top
Resonance circuit of VCO (f = 38.9 MHz): C
= 8.2 – 10 pF,
o
VCO
Coil L
with unloaded Q-factor Q
60 for an oscillator voltage 100 mV
at Pin 20 – 21
VCO
o
RMS
(e.g. TOKO coil 7 KM, 292 XNS - 4051Z)
The oscillator drift is related to the picture carrier frequency, at external temperature-compensated LC circuit.
1.07) = 20 log (4.43 MHz component/1.07 MHz component); (1.07) value related to black-white signal
5.)
6.)
input signal conditions:
picture carrier = 0 dB, colour carrier = –6 dB, sound carrier = –24 dB
7.)
Without external control at Pin 13 the IC automatically operates in mode 1:
negative modulated video-IF signals and FM/NICAM sound signals.
Without control voltage at Pin 19 falling AFC curve is automatically selected.
With open circuit at Pin 14 the L’ switch is not active.
8.)
9.)
10.)
Picture carrier PC = 38.9 MHz; sound carrier SC = 33.4 MHz, SC = 33.16 MHz;
1
2
PC/SC =13 dB; PC/SC = 20 dB; PC unmodulated (equivalent to sync. peak level).
1
2
11.)
12.)
Sound carrier SC = 32.4 MHz, modulated with f
= 1 kHz, m = 54%; v =10 mV
mod
in
Without control voltage at Pin 3 the SIF input 1 is automatically selected.
TELEFUNKEN Semiconductors
9 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Intercarrier
(FM/NICAM)
AF
(AM)
AFC
SIF 2
AFC
switch
+V
S
Loop
comp.
Loop
filter
Black
level
*)
22 F
150
L
VCO
8.2 pF
C
Ref
10 k
C
VCO
470 nF
470 nF
18
17
12
16
15
28
27
26
25
24
23
22
21
20
19
1
2
10
11
13
14
6
7
8
9
3
4
5
22 K
10 F
10 k
2.2 F
AGC (SIF)
AGC (VIF)
Video
neg/pos
SIF
Input switch
L’
VIF
Tuner
delay
SIF 1
Tuner Video
AGC
*
)
external L/C circuit (VCO 38.9 MHz)
with TOKO coil 7KM, 292 XNS – 4051Z
Figure 3. Test circuit
10 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
*)
External L/C circuit (VCO: 38.9 MHz)
with TOKO coil 7KM, 292 XNS – 4051Z
Figure 4. Basic application circuit
TELEFUNKEN Semiconductors
11 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Internal Pin Configuration
1, 27
2, 28
2 k
2 k
2 k
2 k
3 V
2.3 V
20 k
4.2 V
94 8521
94 8524
Figure 5. Sound IF inputs (Pin 1-2, 27-28)
Figure 8. Video IF input (Pin 6-7)
3.5 V
60 k
94 8525
10 k
3
8
94 8522
Figure 6. Input selector switch (Pin 3)
Figure 9. VIF-AGC time constant (Pin 8)
3.5 V
5
6.5 k
6 k
94 8523
94 8526
Figure 7. SIF-AGC time constant (Pin 5)
Figure 10. Tuner AGC – take over point (Pin 10)
12 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
94 8527
2.7 V
5 k
15
Figure 11. Tuner AGC – output (Pin 11)
94 8530
Figure 14. Black level capacitor (Pin 15)
2.6 mA
3.5 V
94 8528
Figure 12. Video output (Pin 12)
94 8531
Figure 15. Internal reference voltage (Pin 17)
3.5 V
17 k
15.5 k
13
23 k
2.75 V
94 8529
94 8532
Figure 13. Standard switch (Pin 13)
Figure 16. Loop filter (Pin 18)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
13 (16)
Preliminary Information
TDA4470-M
3.5 V
30 k
100
19
24
10.5 k
1 mA
94 8533
94 8536
Figure 17. AFC switch (Pin 19)
Figure 20. Intercarrier output (Pin 24)
7 k
7 k
25
100
94 8534
1.4 mA
Figure 18. VCO (Pin 20-21)
94 8537
Figure 21. AF output AM sound (Pin 25)
94 8538
3.5 V
10 k
10 k
94 8535
Figure 19. AFC output (Pin 22)
Figure 22. VCO offset compensation (Pin 26)
14 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Dimensions in mm
Package: SDIP28
95 10610
Package: SO28
95 10610
95 9932
TELEFUNKEN Semiconductors
15 (16)
Rev. A2, 15-Oct-96
Preliminary Information
TDA4470-M
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
16 (16)
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
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