U3762MB-MFNG3 [TEMIC]
Universal Telephone IC - All Functions Integrated; 环球电话IC - 所有的功能集成
| 型号： | U3762MB-MFNG3 |
| 厂家： | 
TEMIC SEMICONDUCTORS |
| 描述： | Universal Telephone IC - All Functions Integrated |
| 文件： | 总23页 (文件大小：236K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
U3762MB
Universal Telephone IC All Functions Integrated
Description
TEMIC’s low-voltage telephone circuit U3762MB pulse and DTMF dialing with redial. Operation below
performs all the speech and line interface functions 15 mA is possible with reduced performance (no dialing).
required in an electronic telephone set, the tone ringer, the
Features
Speech Circuit
Tone Ringer
2-tone ringer
Adjustable DC characteristic
Symmetrical input of microphone amplifier
Adjustable volume
RC oscillator
Receiving amplifier for dynamic or
piezo-electric earpieces
Adjustable threshold
Automatic line-loss compensation
Anti-clipping in transmit direction
Dialer
Benefits
DTMF / pulse switchable
Low number of external components
High quality through one IC solution
Pulse dialing 66/33 or 60/40 or DTMF dialing
selectable by pin
Flashing time duration 98 ms
Pause function
Last number redial up to 32 digits
Standard low-cost crystal 3.57 MHz or
ceramic resonator
Key tone
Ordering Information
Type
U3762MB-MFN
Package
Remarks
SSO44
SSO44
U3762MB-MFNG3
Taped and reeled
Rev. A1, 15-Sep-98
1 (23)
Preliminary Information
U3762MB
Block Diagram / Applications
Figure 1.
2 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Pin Description
C1
C2
1
2
3
4
5
6
7
8
9
44
43
42
41
40
39
38
37
R4
R3
C3
R2
C4
R1
Mask
Earth
HFI
HFO
DP
MODE
KT
XT
XT
36
35
34
33
32
31
30
29
28
27
26
25
HKS
n.c.
MFO 10
TEST
MFIND 11
U3762MB
GND
VDD
OUT
12
13
MIC 1
MIC 2 14
RCK
MICO
15
VRING
VRIAC
AGC
THA
16
17
VL
RDC
TIN 18
19
VI
ST
MUTE 20
CLIM
21
24
23
PRIND
RECO 1
RECO 2
RECIN
22
14835
SSO44
Rev. A1, 15-Sep-98
3 (23)
Preliminary Information
U3762MB
Pin
1
Symbol
C1
Function
Configuration
VDD
Keyboard input
C1
C2–C4
EARTH
VDD
2
3
4
5
C2
C3
PD
VDD
VDD
C4
PD = Protection Device
VDD
Earth
Earth key ( 604 ms high pulse, 1 s pause)
PD
VDD
6
7
HFI
Input with 200 k pull-down resistor.
HFI triggers HFO with each LH edge.
HFI
VDD
PD
VDD
HFO
Output will be toggled by each LH edge at
HFI.
HFO
PD
VDD
8
9
XT
XT
A built-in inverter provides oscillation with an
inexpensive 3.579545-MHz crystal or ceramic
resonator
XT
XT
VDD
PD
VDD
VDD
PD
10
MFO
Output of DTMF
DTMF output frequency
Specified Actual
Error
(%)
VDD
(Hz)
697
(Hz)
699
R
1
R
2
R
3
R
4
C
1
C
2
C
3
+0.28
–0.52
–0.47
–0.10
+0.57
–0.30
–0.34
MFO
770
766
VDD
852
848
941
940
PD
1209
1336
1477
1216
1332
1472
4 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Pin
11
Symbol
Function
Configuration
VDD
MFIND Output switches to low being in temporary
DTMF mode. Reset by on hook condition.
MFIND
MFIND
PD
12
13
GND
Ground
MIC 1 Inverting input of microphone amplifier
VI
1V
14
MIC 2 Non-inverting input of microphone amplifier
50K
50K
PD
MIC1
MIC2
1V
VI
PD
VI
15
MICO Transmit pre-amp output which is normally
capacitively coupled to Pin TIN
1V
16K
MICO
PD
16
17
18
VL
RDC
TIN
Positive supply voltage input to the device.
The current through this pin is modulated by
the transmit signal.
VL
16V
PD
RDC
PD
VL
An external resistor (1 W) is required from
this pin to GND to control the DC input im-
pedance of the circuit. It has a nominal value
of 39 for low-voltage operation. Values up
to 100 may be used to increase the available
transmit output voltage swing at the expense
of low-voltage operation.
AGC
RDC
PD
PD
1V
Input to the line output driver amplifier.
Transmit AGC applied to this stage.
5.6K
TIN
16V
PD
Rev. A1, 15-Sep-98
5 (23)
Preliminary Information
U3762MB
Pin
19
Symbol
Function
Configuration
V
I
This internal voltage bias line must be con-
nected to VL via an external resistor which
dominates the AC input impedance of the cir-
cuit and should be 680 Ω for an 600- input
impedance or 1.2 kΩ for a 900-Ω input im-
pedance.
VI
16V
PD
VBG
30K
20
MUTE Pin for testing
MUTE
MUTE
6.7V
PD
VL
21
22
PRIND PRIVACY indication pin
PRIND
Open collector with minimum 1 mA drive
current to GND when PRIVACY = active
6.7V
60K
PD
RECIN Receive amplifier input. The receiving ampli-
fication is regulated by an AGC.
RECIN
VL
23
24
RECO2 Output of the receive amplifier. Dynamic
transducers with a minimum impedance of
RECO1 100 can be directly driven by these outputs.
60K
1V
RECO2
RECO1
6.7V
PD
VL
25
CLIM Time constant of anticlipping in transmit path.
CLIM 2.2 F
IDC
CLIM = GND: anticlipping inactive
CLIM
6V
PD
26
27
ST
The output of the sidetone cancellation signal,
which requires a balanced impedance of 8 to
10 times the subscribers line impedance to be
connected to Pin VL.
ST
16V
PD
VRIAC
THA
Ringer threshold adjustment
140K
20K
12K
1V
6V
6V
THA
AGC
PD
VL
28
AGC
The range of transmit and receive gain varia-
tions between short and long loops may be
adjusted by connecting a resistor R
from
AGC
this pin to (GND). This pin can be left open to
set AGC out of action.
PD
RDC
PD
29
VRIAC Ringing supply
70K
10K
VRIAC
50V
PD
6 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Pin
30
Symbol
Function
Configuration
VRING DC supply voltage for the tone ringer is lim-
ited to 30 V with integrated Z-diode.
VRING
OUT
200
30V
50V
6.5K
3.4V
PD
PD
31
32
RCK
OUT
RC clock oscillator for ringer
0.8V
RCK
VRING
OUT
6V
6V
PD
Buzzer output
200
30V
6.5K
PD
PD
50V
VL
33
34
VDD
Supply output for dialer part
6V
VDD
6V
PD
VDD
VDD
TEST
TEST input with 6.25 k pull-up resistor
TEST
VDD
PD
35
36
n.c.
Not connected
VDD
HKS
Hook switch input.
HKS = 0: On-hook state. Chip in sleep mode,
no operation (with a pull-down resistor of
HKS
VDD
about 400 k
.
HKS = 1: Off-hook state. Chip enable for
normal operation.
PD
VDD
37
KT
Keytone output only sent out in pulse mode
KT
VDD
PD
Rev. A1, 15-Sep-98
7 (23)
Preliminary Information
U3762MB
Pin
38
Symbol
Function
Configuration
MODE Pulling MODE pin to:
C3
C4
R1
R2
R3
R4
C1
tone mode with 87 ms burst time
and 140 ms pause
tone mode with 87 ms DTMF burst
and 87 ms pause
pulse mode with 20 pps,
Make/Break = 40/60
pulse mode with 20 pps,
Make/Break = 33/66
pulse mode with 10 pps,
Make/Break = 40/60
pulse mode with 10 pps,
Make/Break = 33/66
pulse mode with 10 pps,
Make/Break = 33/66 and temp. DTMF
with 87 ms DTMF burst, 140 ms pause
VDD
MODE
VDD
PD
MODE pin pulled to R4: with temporary
DTMF, 87 ms DTMF burst and 87 ms pause
VDD
39
40
DP
Pulse dialing output. Flash key will cause DP
to be active in either DTMF mode or pulse
mode. In On-hook state is DP = VDD.
DP
PD
VDD
Mask
Short mute during pulse dialing, active high
MASK
PD
VDD
Keyboard input
41
42
43
44
R1
R2
R3
R4
R1
VDD
PD
VDD
R2–R4
VDD
PD
8 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Keyboard Operation
C1
1
C2
2
C3
3
C4
R1
4
5
6
R2
R3
R4
7
8
9
F
/T
0
#
R/P
R/P: Redial and pause function key
F: Flash key
: hand set, MIC mute
/T:
function;
pulse-to-tone function
Normal Dialing
OFF HOOK
,
D1
,
D2
, ...,
Dn
1.
2.
3.
D1, D2, ..., Dn will be dialed out.
Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits.
If redialing length oversteps 32 digits, the redialing function will be inhibited.
Redialing
OFF HOOK
,
D1
,
D2 , ..., Dn
BUSY, Come
ON HOOK
,
OFF HOOK
,
R/P
R/P
The
key can execute the redial function only as the first key-in after off-hook;
otherwise, it executes the pause function (3.6 s).
Keys stored in redial memory: 0 to 9, *, #, R/P, F
Rev. A1, 15-Sep-98
9 (23)
Preliminary Information
U3762MB
HKS
tKRD
KEY IN
3
4
2
2
tKID
tKID
DP
B M
tPDP
B M
tIDP
tIDP
tIDP
tIDP
tPDP
MUTE
MASK
Low
MFO
OSC
Oscillation
15019
Figure 2. Pulse mode normal dialing
HKS
KEY IN
DP
tKRD
t<tOHD
R/P
tKID
B M
B M
tIDP
tIDP
tIDP
tPDP
MUTE
MASK
Low
MFO
OSC
Oscillation
15020
Figure 3. Pulse mode auto dialing
10 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
HKS
KEY IN
DP
tKRD
t > tOHD
R/P
tKID
B M
tPDP
B M
tIDP
tIDP
MUTE
MASK
Low
MFO
OSC
Oscillation
15021
Figure 4. Pulse mode auto dialing
HKS
tKRD
KEY IN
3
4
2
5
tKID
DTMF
MUTE
tTD
tITP
tITP
tITP
Low
High
MASK
DP
Oscillation
OSC
15022
Figure 5. DTMF mode normal dialing
Rev. A1, 15-Sep-98
11 (23)
Preliminary Information
U3762MB
HKS
tKRD
t<tOHD
KEY IN
R/P
tKID
DTMF
MUTE
tTD
tITP
tITP
Low
High
MASK
DP
Oscillation
OSC
15023
Figure 6. DTMF mode auto dialing (t tOHD
)
HKS
tKRD
t > tOHD
KEY IN
R/P
tKID
DTMF
MUTE
tTD
tITP
Low
High
MASK
DP
Oscillation
OSC
15024
Figure 7. DTMF mode auto dialing (t tOHD
)
12 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Access Pause
OFF HOOK
,
D1
,
D2
,
R/P
,
D3
, ...,
Dn’
1.
2.
The pause function can be stored in the memory.
The pause function is executed in normal dialing and redialing.
HKS
KEY IN
DP
2
R/P
3
tKID
tIDP
tPDP
tPDP
MUTE
MASK
tP
Low
MFO
OSC
Oscillation
15025
Figure 8. Pause function
Rev. A1, 15-Sep-98
13 (23)
Preliminary Information
U3762MB
Pulse-to-Tone ( /T)
OFF HOOK
,
D1
,
D2 , ..., Dn
,
/T
,
D1’
,
D2’
, ...,
Dn’
1. a) If the mode switch is set to pulse mode, then the output signal will be:
D1, D2, ..., Dn, Pause (3.6 s), D1’, D2’ ,..., Dn’
(Pulse)
(Tone)
(Tone)
1. b)
2.
(Pulse), (Tone),
if MODE pin = C2, * is sent out as DTMF tone
If the mode switch is set to tone mode, then the output signal will be:
D1, D2, ..., Dn,
(Tone)
*
, D1’, D2’, ..., Dn’
(Tone)
(Tone)
3.
The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse mode
by going on-hook only.
HKS
KEY IN
2
*/T
3
tKID
DP
MUTE
MASK
tIDP
tPDP
tP
MFO
Oscillation
OSC
MFIND
15026
Figure 9. Pulse-to-tone operation
14 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Flash (F)
OFF HOOK
,
F
n
1. The dialer will execute flash break and the entire flash pause time will elapse before the next digits are dialed out.
2. The flash key can be stored as a digit in the memory. Only one flash, however, will be released to the users.
3. The system will return to the initial state after the flash pause time has elapsed.
High
HKS
KEY IN
F
F
3
tKID
tFB
DP
tFP
tFP
MUTE
MASK
MFO
tITP
Oscillation
OSC
15027
Figure 10. Flash operation
t
t
t
t
t
= key active in debounce
= key release debounce
= pre-digit pause
= inter-digit pause
= DTMF output duration
t
t
t
t
= intertone pause
KID
KRD
PDP
IDP
TD
ITP
FB
FP
P
= flash break time
= flash pause time
= pause time
KEY IN
DP
MUTE
Low
MASK
EARTH
15028
Figure 11. Symbolic timing diagram: Earth function
Rev. A1, 15-Sep-98
15 (23)
Preliminary Information
U3762MB
Off hook
HKS
HFI
HFO
PD
14909
Figure 12. Symbolic timing diagram: HFI, HFO function
Off hook
HKS
On hook
DP
165 ms
15029
Figure 13. Symbolic timing diagram: on hook debounce time
Absolute Maximum Ratings
Parameters
Symbol
Value
140
Unit
mA
V
Line current
I
L
DC line voltage
V
L
14
Junction temperature
Ambient temperature
Storage temperature
T
125
°C
j
T
amb
–25 to +75
–55 to +150
0.9
°C
T
stg
°C
Total power dissipation, T
Junction ambient
= 60°C
SSO44
SSO44
P
tot
W
amb
R
70
K/W
thJA
ESD withstand voltage 1 kV according to MIL standard 883d method 3015.7 (HBM)
16 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Electrical Characteristics Speech Circuit
Reference point Pin GND, f = 1000 Hz, 0 dBm = 775 mVrms, RDC = 39 Ω / 1 W, Tamb = 25°C, unless otherwise specified,
refer to “Basic Test Circuit”.
Parameters
Line voltage
Test Conditions / Pin
I = 8 mA
Symbol
Min.
Typ.
1.4
Max.
Unit
V
V
L
L
I = 20 mA
3.6
5.9
6.9
3.85
6.55
4.1
7.2
8.2
V
V
V
L
I = 73 mA
L
I = 100 mA
L
Transmit and sidetone
Input resistance
Gain
R
R
45
46.8
–0.5
80
47.8
120
48.8
0.5
kΩ
dB
dB
i
i
I = 20 mA, S5 = open
G
s
L
Gain change with current
I = 20 to 60 mA
L
G
S
R
AGC
= infinite
Gain deviation
T
= –10 to +60°C
G
–0.5
–4.8
0.5
–7
dB
amb
S
I = 20 mA
L
Line-loss compensation
R
= 12 k , I = 73 mA
G
s
–6
dB
AGC
L
Max. output voltage at line I = 20 mA, V = 10 mV,
V
Lmax
1.2
dBm
L
mic
CLIM = 2.2 F, S = open
1
Noise at line weighted
psophometrically
Sidetone reduction
I > 20 mA, G = 48dB
n
o
– 72
20
dBmp
dB
L
S
I
20 mA
G
STA
10
15
L
DTMF amplifier
Volume range d < 5%
DTMF output level low
frequency group
Pre-emphasis between
high- and low-level
frequency group
Single tone, I
I = 20 mA, S5 = closed
L
20 mA
V
1.3
–8
dBm
dBm
L
L
V
L
–4
3
P
PRE
= P
– P
P
PRE
1
dB
HLG
LLG,
S5 = closed
Receiving amplifier
Gain
I
20 mA
G
G
3
–0.5
5
0.5
dB
dB
L
R
Gain change with current
I = 20 to 60 mA
R
T
I = 20 mA
I = 73 mA
I = 73 mA
L
R
R
R
= infinite
AGC
Gain deviation
= –10 to +60°C
G
G
–0.3
–4.7
0.7
dB
amb
L
Line-loss compensation
Receiving noise at
–6
–77.5
–7
–71
dB
dBm
L
n
L
i
earphone weighted
psophometrially
Gain change when muted
Output voltage push-pull
I
I
20 mA
20 mA, Z = 68 nF,
G
24
0.8
29
0.9
34
2.5
6.3
dB
V
rms
L
L
RM
V
RECO
ear
100 in series, d ≤ 2%
I = 40 mA, V = 4 V
Z
Ear protection differential
,
V
1.3
1.6
3.4
V
rms
L
gen
rms
ear
= 68 nF + 100
ear
Supply voltage (for internal use only)
Output voltage *
Available current for
peripherals
Distortion at line
I
I
20 mA dialing mode
20 mA dialing mode
V
2.0
150
V
A
L
L
DD
I
DD
I = 20 mA, S5 = open
d
2
4
%
Vpp
dB
L
t
V = 0.775 V
L
rms
Maximum output voltage
swing at line
Mute suppression transmit
with privacy function
I = 20 mA,
V
I = 20 mA
V
L max
L
= 50 mV
MIC
rms
G
SPRIV
60
L
*
Output must be limited externally to max. 5.5 V
Rev. A1, 15-Sep-98
17 (23)
Preliminary Information
U3762MB
DC Characteristics Dialer
V
DD
= 2.7 V, f
= 3.58 MHz, all outputs unloaded, S9 closed; HKS = 0
OSC
Parameters
Test Conditions / Pins
Symbol
Min.
1
Typ.
Max.
0.1
3
Unit
A
Memory rentention current HKS = 1, V = 1.0 V
I
DD
MR
Pre-emphasis
Column/Row
R = 5 k
2
dB
dB
mA
A
DTMF distortion
DP output sink current
d
–30
–23
L
V
= 0.5 V
I
0.5
PO
PL
Keyboard input drive
current
V = 0 V
I
20
I
KD
Keyboard input sink current V = 2.7 V
I
500
A
k
I
KS
Key on resistance
all other keys
R
KON
5
Key off resistance
R
KOFF
100
k
Mask sink / drive current
Earth sink / drive current
I
H/L
0.5
0.5
mA
mA
M
I H/L
e
AC Characteristics Dialer
Parameters
Test Conditions / Pins
Symbol
Min.
15
Typ.
Max.
Unit
ms
Keypad active in
debounce mode
t
20
25
KID
Key release debounce
Pre-digit pause
t
15
20
25
ms
KRD
MODE pin = R3 (10 pps)
MODE pin = C1, C2, C4 (10 pps)
t
t
37
31
40
33.3
41
33.5
ms
ms
PDP
PDP
MODE pin = R1 (20 pps)
MODE pin = R2
t
t
20
16.65
ms
ms
PDP
PDP
Inter-digit pause
(auto dialing)
10 pps, t = t
20 pps
+ t
t
IP
t
IP
810
836
512
860
ms
ms
IP
IDP
PDP
Make/break ratio
MODE pin = R1 (20 pps), R3
(10 pps)
MODE pin = C1, C2, R4 (10 pps)
R2 (20 pps)
M/B
40.8:60.2
35.6:64.4
40:60
39.2:60.8
31.2:68.8
%
33:67
%
DTMF output duration Auto dialing, MODE = C4
MODE = C3
t
TD
84
84
87
87
90
90
ms
ms
Inter-tone pause
Auto dialing, MODE = C4
MODE = C3
t
84
135
87
140
90
147
ms
ms
ITP
Flash break time, F
Flash pause time
Pause time
C4 connected to R3
F
t
95
0.9
3.5
98
1
101
1.1
3.7
ms
s
FB
t
FP
t
3.6
220
s
P
On-hook debounce
time
t
ms
ohd
18 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Parameters
Break duration
Test Conditions / Pins
MODE pin = R3
MODE pin = C1, C2, R4
Symbol
Min.
Typ.
Max.
Unit
t
B
57.6
63
60
66.7
62.4
69
ms
ms
MODE pin = R1 (20 pps)
MODE pin = R2
t
B
30
33.35
ms
ms
Make duration
MODE pin = R3
MODE pin = C1, C2, R4
MODE pin = R1 (20 pps)
MODE pin = R2
t
t
38
31
40
33.3
20
16.65
41
35
ms
ms
ms
ms
M
M
Break + make duration MODE pin = C1, C2, R3, R4
MODE pin = R1, R2 (20 pps)
t
95
100
50
105
ms
ms
P
t
P
Electrical Characteristics Tone Ringer
f
= 4 kHz, V
= 20 V, T
= 25 C, reference point GND, unless otherwise specified
RCK
RING
amb
Parameters
Test Conditions / Pins
Symbol
Min.
2.1
Typ.
Max.
Unit
mA
Supply current,
outputs open
V
= 20 V
I
3.8
RIAC
RING
Switch-on threshold
Switch-off threshold
Ringing frequency
V
V
, THA = open
V
8
9
10
V
V
RIAC
RON
V
ROFF
5.0
5.6
6.5
RIAC
R = 150 kΩ, C = 1 nF
V
RIAC
> V
f
1H
937
752
1010
808
1083
868
Hz
Hz
RON
f
1L
Audio sequence frequency
Output voltage swing
Turn-off delay
f
11.5
21
12.5
23
14.0
Hz
2
V
= 25 V, C = 68 nF
V
V
pp
Ring
out
out
off
See figure 11
t
65
100
ms
12459
Volt
VRING
0
t
t
t
VRIAC
0
OUT
Melody
0
t
off
Figure 14. Turn-off delay time
Rev. A1, 15-Sep-98
19 (23)
Preliminary Information
U3762MB
Basic Test Circuit
I / O
I / O
O U T
t o e s T t e r
t o e s T t e r
t o e s T t e r
14836
Figure 15. Basic test circuit
20 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Equations for Electrical Characteristic Parameters of the Speech Circuit
The equations refer to the basic test circuit. If not otherwise specified, the switches in the basic test circuit are inactive.
Transmit gain
VL
GS
20 log
VMIC
= 3 mV/1 kHz, S5 = open
V
MIC
Receiving gain
GR 20 log
VRECO
VL
RX-mode: V = 300 mV/1 kHz, S7b
gen
Line-loss compensation transmit
GS
GS(at IL
73 mA)–GS(at IL
20 mA)
TX-mode: V
= 3 mV/1 kHz, S5 = open
MIC
Sidetone reduction
VL
VRECO
GSTA
20 log
(in TX–mode) GR
TX-mode: V
= 3 mV/1 kHz, S5 = open
MIC
Line-loss compensation receive
GR GR(at IL 73 mA)–GR(at IL
20 mA)
RX-mode: V = 300 mV/1 kHz, S7b
gen
Gain change when muted
VRECO
VL
VRECO
VL
GRM
20 log
(Mute
inactive)–20
log
(Mute
active)
V
gen
= 100 mV/1 kHz, S5 = open, S8 = open
Input impedance of microphone amplifier
50 k
Ri
VL
VL
closed) –1
(S6
(S6 open)
TX-mode: V
= 3 mV/1 kHz, S5 = open
MIC
Rev. A1, 15-Sep-98
21 (23)
Preliminary Information
U3762MB
Packaging Information
9.15
8.65
Package SSO44
Dimensions in mm
18.05
17.80
7.50
7.30
2.35
0.3
0.8
0.25
0.10
0.25
10.50
10.20
16.8
44
23
technical drawings
according to DIN
specifications
13040
1
22
22 (23)
Rev. A1, 15-Sep-98
Preliminary Information
U3762MB
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC Semiconductor 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 Semiconductor GmbH 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 Semiconductor GmbH 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 Semiconductors GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423
Rev. A1, 15-Sep-98
23 (23)
Preliminary Information
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