U3761MB [TEMIC]
Low Voltage Standard Telephone Circuit with 13 Memories; 低电压标准电话线与13秋之回忆型号: | U3761MB |
厂家: | TEMIC SEMICONDUCTORS |
描述: | Low Voltage Standard Telephone Circuit with 13 Memories |
文件: | 总23页 (文件大小:408K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
U3761MB
Low Voltage Standard Telephone Circuit with 13 Memories
Description
TEMIC’s low voltage telephone circuit, U3761MB pulse and DTMF dialing with redial, notice function, and
performs all the speech and line interface functions 13 memories.
required in an electronic telephone set, the tone ringer, the
Features
Last number redial up to 32 digits
Speech Circuit
Three by 32 digits direct (one touch) memory
Ten by 16 digits indirect (two touch) memory
Notice function up to 32 digits
Adjustable DC characteristic
Symmetrical input of microphone amplifier
Receiving amplifier for dynamic or
piezo-electric earpieces
Standard low-cost crystal 3.57 MHz or
ceramic resonator
Automatic line loss compensation
Dialer
Tone Ringer
2 Tone ringer
DTMF / pulse switchable
Pulse dialling 66/33 or 60/40 or DTMF dialling
selectable by pin
Adjustable volume
RC oscillator
Selectable flashing duration by key pad
Pause function
Adjustable threshold
Benefits
Low number of external components
High quality through one IC solution
TELEFUNKEN Semiconductors
1 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Block Diagram / Applications
470
VDD
Figure 1.
2 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40
SSO44
C1
C2
1
2
3
4
5
6
7
8
9
44
43
42
41
40
39
38
37
R4
C1
C2
1
2
3
4
5
6
7
8
9
40
39
38
37
36
35
34
33
R4
R3
R2
R1
R3
C3
R2
C3
C4
R1
C4
Mask
Earth
NC
NC
Mask
DP
Earth
DP
XT
XT
MODE
BM
MODE
XT
XT
MFO
GND
BM
36
35
34
33
32
31
30
29
28
27
26
25
HKS
NC
32
31
30
29
28
27
26
25
24
23
22
21
HKS
VDD
MFO 10
NC 11
MIC 1 10
NC
OUT
MIC 2
MICO
VL
11
12
13
14
U3761MB
GND
VDD
OUT
12
13
U3761MB
RCK
MIC 1
VRING
VRIAC
AGC
MIC 2 14
RCK
RDC
MICO
15
VRING
VRIAC
AGC
NC 15
16
17
VL
16
THA
TIN
RDC
17
VI
ST
TIN 18
19
THA
PRIVACY
MUTE 18
VI
ST
19
20
VBG
RECO 1
RECO 2
MUTE 20
PRIVACY
RECIN
21
24
23
VBG
RECO 1
RECO 2
12631
RECIN
22
12632
TELEFUNKEN Semiconductors
3 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Pin Description
SDIP40 SSO44
Symbol
Configuration
Function
Keyboard input
1
2
3
4
1
2
3
4
5
C1
C2
C3
C4
C1
PD
PD
C2–C4
5
Earth
NC
Earth key
15
7, 6,
Not connected
34, 35
A built-in inverter provides
oscillation with an inexpensive
3.579545 MHz crystal or ceramic
resonator
6
7
8
8
XT
XT
PD
XT
XT
40P
40P
PD
9
XT
PD
XT
40P
40P
PD
10
MFO
Output of DTMF
DTMF output frequency
Specified Actual
Error
(%)
(HZ)
697
(Hz)
699
R1
R2
R3
R4
C1
C2
C3
+0.28
–0.52
–0.47
+0.74
+0.57
–0.30
–0.34
770
766
MFO
852
848
941
948
1209
1336
1477
1216
1332
1472
9
12
GND
Ground
4 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40 SSO44
10 13
Symbol
MIC 1
Configuration
Function
Inverting input of microphone
amplifier
VI
1V
50K
PD
MIC1
MIC2
50K
1V
VI
VI
PD
11
14
MIC 2
Non-inverting input of microphone
amplifier
1V
50K
PD
MIC1
MIC2
50K
1V
VI
PD
VI
12
13
15
16
MICO
Transmit pre-amp output which is
normally capacitively coupled to
Pin TIN
1V
16K
MICO
PD
VL
Positive supply voltage input to the
device. The current through this
pin is modulated by the transmit
signal.
VL
16V
PD
RDC
PD
TELEFUNKEN Semiconductors
5 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40 SSO44
Symbol
RDC
Configuration
Function
14
17
An external resistor (1 W) is
VL
required from this pin to GND to
control the DC input impedance 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
16
17
18
19
TIN
Input to the line output driver am-
plifier. Transmit AGC applied to
this stage.
5.6K
TIN
16V
PD
V
I
This internal voltage bias line must
be connected to VL via an external
resistor, R , which dominates the
B
VI
AC input impedance of the circuit
and should be 680 Ω for an 600
input impedance or 1.2 kΩ for a
900 Ω input impedance.
16V
PD
VBG
30K
18
19
20
21
MUTE
VBG
Pin for testing
MUTE
MUTE
VL
6.7V
PD
Pin for test mode
VBG
6.7V
PD
20
22
22
24
RECIN
RECO1
Receive amplifier input. The
receiving amplification is regulated
by an AGC.
60K
REC
IN
VL
Output of the receive amplifier.
Dynamic transducers with a
minimum impedance of 100 can
be directly driven by these outputs.
60K
1V
RECO2
RECO1
6.7V
PD
VL
21
23
RECO2
60K
1V
RECO2
RECO1
6.7V
PD
6 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40 SSO44
Symbol
Configuration
Function
VI
23
24
25
25
26
27
PRIVACY
Input for handset mute
40K
0.6V
6V
6V
PRIVACY
PD
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
12K
1V
20K
6V
6V
THA
AGC
PD
VL
26
28
AGC
The range of transmit and receive
gain variations 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
27
28
29
30
VRIAC
VRING
Ringing supply
70K
10K
VRIAC
50V
PD
DC supply voltage for the tone
ringer is limited to 30 V with
integrated Z-diode.
VRING
OUT
200
30V
50V
6.5K
PD
PD
3.4V
29
31
RCK
RC clock oscillator for ringer
0.8V
RCK
6V
6V
PD
TELEFUNKEN Semiconductors
7 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40 SSO44
Symbol
Configuration
Function
Buzzer output
30
32
OUT
VRING
OUT
200
30V
50V
6.5K
PD
PD
VL
31
32
33
36
VDD
HKS
Supply output for dialer part
6V
VDD
6V
PD
Hook switch input.
HKS = 1: On-hook state. Chip in
sleep mode, no operation.
HKS = 0: Off-hook state. Chip
enable for normal operation with a
pull-high resistor of about 4 M .
HKS
B/M
PD
PD
33
34
37
38
BM
If BM = floating pulse dialing with
3:2 B/M ratio
If BM is connected to ground pulse
dialing with a B/M ratio of 2:1
MODE
Pulling mode pin to V places the
DD
dialer in tone mode. Pulling mode
pin to GND places the dialer in
DTMF with 140 ms inter-tone
pause. If the mode pin is left
floating, the dialer is in pulse mode
( 10 ppS)
MODE
35
36
39
40
DP
N-channel open drain pulse dialing
output. Flash key will cause DP to
be active in either DTMF mode or
pulse mode.
DP
DP
Mask
Short mute during pulse dialing
8 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
SDIP40 SSO44
Symbol
R1
Configuration
Function
Keyboard input
37
38
39
40
41
42
43
44
R1
R2
PD
PD
PD
PD
R2
R3
R4
R3
R4
Keyboard Operation
C1
1
4
7
/T
C2
2
5
8
0
C3
3
6
9
#
C4
S
M1
M2
M3
N
R1
R2
R3
R4
A
R/P
VDD
F1
F2
F3
E
S: Store function key
/T: and pulse-to-tone key
M1 to M3: One-touch memory
F1, F2, F3: Flash keys
A: Indirect repertory dialing function key (LN 0 to 9)
R/P: Redial and pause function key
N: Notice 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.
TELEFUNKEN Semiconductors
9 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Number Store
OFF HOOK
,
D1
,
D2 , ..., Dn
,
S
,
S
,
Mn (or Ln
)
S
1.
2.
If the sequence of the dialed digits D1, D2, ..., Dn has not finished
D1, D2, ..., Dn will be stored in memory location and dialed out.
will be ignored.
OFF HOOK
D1, D2, ..., Dn will be stored in memory location but will not be dialed out.
R/P /T
,
S
,
D1
,
D2 , ..., Dn
,
S
,
Mn (or Ln
)
3.
4.
and
In store mode,
keys can be stored as a digit in memory.
R/P
/T
is the pulse-to-tone function key.
is the pause function key;
5.
The store mode is released after the store function is executed or when the state of the hook switch is changed.
Reportery Dialing
1.
OFF HOOK
,
Mn
A
2.
OFF HOOK
,
,
Ln
Notice (N)
OFF HOOK
,
D1
,
D2 , ..., Dn
Dn
,
N
D1
N
1.
If the dialing of
to
is finished, pressing the
key will cause D1 to Dn to be copied
to the N memory.
OFF HOOK
,
N
2.
D1 to Dn will be dialed out after the N key is pressed.
Cascaded Dialing
1.
Normal dialing + Repertory dialing
+
+
Normal dialing
2.
Repertory dialing
Redialing
+
Normal dialing
Normal dialing
3.
4.
+
Normal dialing + Repertory dialing
Redialing is valid as first key-in only.
10 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
HKS
KEY IN
DP
tKRD
3
4
2
2
tKID
tKID
M B
M B
tIDP
tIDP
tIDP
tIDP
tPDP
tPDP
T/P MUTE
MASK
DTMF
Low
Oscillation
Oscillation
OSC
13402
Figure 2. Pulse mode normal dialing
HKS
KEY IN
DP
tKRD
t<tOHD
R/P
tK10
M B
M B
tIDP
tIDP
tIDP
tPDP
T/P MUTE
MASK
DTMF
Low
Oscillation
OSC
13403
Figure 3. Pulse mode auto dialing
TELEFUNKEN Semiconductors
11 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
HKS
KEY IN
DP
tKRD
t tOHD
R/P
tK10
M B
M B
tIDP
tIDP
tPDP
T/P MUTE
MASK
DTMF
Low
Oscillation
OSC
13404
Figure 4. Pulse mode auto dialing
HKS
tKRD
KEY IN
3
4
2
5
tKID
DTMF
tTD
tITP
tITP
tITP
T/P MUTE
MASK
DP
High
Oscillation
Oscillation
OSC
13405
Figure 5. DTMF mode normal dialing
12 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
HKS
tKRD
t<tOHD
KEY IN
R/P
tKID
DTMF
tTD
tITP
tITP
T/P MUTE
MASK
DP
High
Oscillation
OSC
13406
Figure 6. DTMF mode auto dialing
HKS
tKRD
t tOHD
KEY IN
R/P
tKID
DTMF
tTD
tITP
T/P MUTE
MASK
DP
High
Oscillation
OSC
13407
Figure 7. DTMF mode auto dialing
TELEFUNKEN Semiconductors
13 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Access Pause
OFF HOOK
,
D1
,
D2
,
R/P
,
D3
, ...,
Dn’
1.
2.
The pause function can be stored in memory.
The pause function is executed in normal dialing and redialing.
HKS
KEY IN
2
R/P
3
tKID
tIDP
B
B
DP
M
M
tPDP
tPDP
T/P MUTE
tP
MASK
DTMF
Low
Oscillation
OSC
13408
Figure 8. Pause function
14 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Pulse-to-Tone ( /T)
OFF HOOK
,
D1
,
D2 , ..., Dn
,
/T
,
D1’
,
D2’
, ...,
Dn’
1.
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)
2.
3.
If the mode switch is set to tone mode, then the output signal will be:
D1, D2, ..., Dn,
(Tone)
*
, D1’, D2’, ..., Dn’
(Tone)
(Tone)
The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse mode
only by going on-hook.
HKS
KEY IN
2
*/T
3
tKID
B
DP
M
tIDP
tPDP
T/P MUTE
tP
MASK
DTMF
OSC
Oscillation
13409
Figure 9. Pulse-to-tone operation
Earth
The Earth pin will go high 400 ms and the pause time of 1 s will be added when the Earth key is pressed. It can be stored
as a digit in Memory and has not the first priority.
TELEFUNKEN Semiconductors
15 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Flash (F1 or F2 or F3)
OFF HOOK
,
F
n
1.
2.
3.
The dialer will execute flash break and all the flash pause time before the next digits is dialed out.
The flash key can be stored as a digit in memory, however, only one flash will be releases to users.
The system will return to the initial state after the flash pause time is finished.
Low
HKS
KEY IN
F
F
3
tKID
tFB
DP
tFP
tFP
T/P MUTE
MASK
DTMF
OSC
tITP
Oscillation
13410
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
Absolute Maximum Ratings
Parameters
Line current
DC line voltage
Symbol
Value
140
14
Unit
I
mA
V
L
V
L
Junction temperature
Ambient temperature
Storage temperature
T
125
–25 to +75
–55 to +150
°C
°C
°C
j
T
amb
T
stg
Total power dissipation, T
= 60°C
SSO44
SDIP40
P
P
0.9
1.3
W
W
amb
tot
tot
Junction ambient
SSO44
SDIP40
R
thJA
R
thJA
70
50
K/W
K/W
16 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Electrical Characteristics Speech Circuit
Reference point Pin GND, f = 1000 Hz, 0 dBm = 775 mV
R
= 39 Ω / 1 W, T = 25°C, unless otherwise specified
rms, DC amb
Parameters
Line voltage
Test Conditions / Pin
I = 5 mA
Symbol
Min.
1.2
Typ.
Max.
1.5
Unit
V
L
V
V
V
V
L
I = 20 mA
4.0
4.5
6.4
L
I = 30 mA
L
I = 73 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
dB
amb
S
I = 20 mA
L
Line-loss compensation
Noise at line weighted
psophometrically
Sidetone reduction
DTMF amplifier
Volume range d < 5%
DTMF output level low
frequency group
R
= 12 k , I = 73 mA
G
s
–6
15
–7
– 72
dB
dBmp
AGC
L
I > 20 mA, G = 48dB
L
n
o
S
I
20 mA
G
10
20
dB
L
STA
Single tone, I
I = 20 mA, S5 = closed
L
20 mA
V
L
1.3
–8
dBm
dBm
L
V
L
–4
3
Pre-emphasis between high
and low level frequency
group
P
PRE
= P
– P
P
1
dB
HLG
LLG,
PRE
S5 = closed
Receiving amplifier
Gain
Gain change with current
IL 20 mA
G
G
3
–0.5
5
0.5
dB
dB
R
I = 20 to 60 mA
L
R
R
R
R
AGC
= infinite
Gain deviation
T
amb
= –10 to +60°C
G
G
–0.3
–4.7
0.7
dB
I = 20 mA
L
Line-loss compensation
I = 73 mA
L
–6
–7
dB
Receiving noise at
earphone weighted
psophometrially
I = 73 mA
L
n
i
–77.5
–71
dBm
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
dB
V
RMS
L
L
RM
V
RECO
ear
100 in series
Ear protection differential
I = 40 mA, V = 4 V
,
V
1.3
2.3
1.6
2.5
V
rms
L
gen
rms
ear
Z
= 68 nF + 100
ear
Supply voltage (for internal use only)
Output voltage
Distortion at line
VL = 0.775 Vrms
I
20 mA dialing mode
V
DD
6.3
2
V
%
L
IL = 20 mA, S5 = open
d
t
Maximum output voltage
swing at line
Mute suppression transmit
with privacy function
IL = 20 mA,
Vmic = 50 mVoff
IL = 20 mA
V
3.4
4
Vpp
dB
L max
G
SPRIV
60
TELEFUNKEN Semiconductors
17 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
DC Characteristics Dialer
V
DD2
= 2.7 V, f
= 3.58 MHz, all outputs unloaded, S9b
OSC
Parameters
Memory rentention current HKS = 1, V
Pre-emphases
DTMF distortion
DP output sink current
Test Conditions / Pins
Symbol
Min.
1
Typ.
Max.
0.2
3
Unit
A
dB
dB
mA
A
= 1.0 V
I
DD2
MR
Column/Row
R = 5 k
2
–30
d
–23
L
V
= 0.5 V
I
0.5
30
PO
PL
Keyboard input drive
current
V = 0 V
I
I
KD
Keyboard input sink current V = 2.7 V
Keyboard resistance
I
200
400
A
k
I
KS
5
F1, F2, F3, E
300
board resistance
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
Keypad active in de-
bounce
Test Conditions / Pins
Symbol
t
KID
Min.
Typ.
20
Max.
Unit
ms
Key release debounce
t
20
ms
KRD
Pre-digit pause
B/M pin = floating 10 ppS
B/M pin = low
10 ppS
t
t
40
33.3
800
ms
ms
ms
PDP
PDP
Inter-digit pause
(auto dialing)
t
IDP
Make/break ratio
B/M pin = floating
B/M pin = low
Auto dialing, MODE = V
MODE = GND
Auto dialing, MODE = V
M/B
40:60
33:67
87
70
87
%
%
ms
DTMF output duration
Inter-tone pause
t
TD
DD
t
ms
DD
ITP
MODE = GND
140
Flash break time
F1
F2
F3
C connected to V
t
FB
98
250
600
ms
ms
ms
1
DD
DD
DD
C connected to V
2
C connected to V
3
Flash pause time
F1
F2
F3
t
FP
1
s
Pause time
On Hook debounce time
Earth time
t
3.6
150
400
1
s
P
t
ms
ms
s
ohd
C connected to V
t
t
4
DD
et
pt
Earth pause time
18 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Electrical Characteristics Tone Ringer
f
= 4 kHz, V
= 20 V, T
= 25 C, reference point GND, unless otherwise specified
RCK
RING
amb
Parameters
Supply current,
outputs open
Test Conditions / Pins
Symbol
I
RING
Min.
2.1
Typ.
Max.
3.8
Unit
mA
V
= 20 V
RIAC
Switch-on threshold
Switch-off threshold
Ringing frequency
V
V
V
23.5
5.6
V
V
RIAC
RON
V
ROFF
RIAC
R = 150 kΩ, C = 1 nF
V
> V
f
1H
937
752
11.5
21
1010
808
12.5
23
1083
868
14.0
Hz
Hz
V
pp
ms
RIAC
RON
f
1L
Audio sequence frequency
Output voltage swing
Turn-off delay
f
2
V
Ring
= 25 V, C = 68 nF
V
out
out
off
See figure 11
t
65
12459
Volt
VRING
0
t
t
t
VRIAC
0
OUT
Melody
0
t
off
Figure 11. Turn off delay time
Ordering Information
Type
U3761MB-ASD
Package
SDIP40
SSO44
U3761MB-AFN
U3761MB-AFNG3
SSO44 tape and reel
TELEFUNKEN Semiconductors
19 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Basic Test Circuit
I D C
A C
I / O
A C
I / O
I N
T O E T S T E R
T O E T S T E R
12633
20 (23)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Formulas for Parameters of Elecrtrical Characteristics of Speech Circuit
Formulas referred to the basic test circuit. If not otherwise specified switches in basic test circuit are inactive.
Transmit gain
VL
VMIC
GS
20 log
VMIC = 3 mV/1 kHz, S5 = open
Receiving gain
VRECO
GR
20 log
VL
RX-mode: VGEN = 300 mV/1 kHz, S7b
Line loss compensation transmit
GS
GS(at IL
73 mA)–GS(at IL
20 mA)
TX-mode: VMIC = 3 mV/1 kHz, S5 = open
Sidetone reduction
VL
VRECO
GSTA
20 log
(in TX–mode) GR
TX-mode: VMIC = 3 mV/1 kHz, S5 = open
Line loss compensation receive
GR
GR(at IL
73 mA)–GR(at IL
20 mA)
RX-mode: VGEN = 300 mV/1 kHz, S7b
Gain change when muted
VRECO
VRECO
VL
GRM
20 log
(Mute
inactive)–20
log
(Mute
active)
VL
VGEN = 100 mV/1 kHz, S5 = open, S8 = open
Input impedance of microphone amplifier
50 k
Ri
VL
(s6
closed) –1
VL
(S6
open)
TX-mode: VMIC = 3 mV/1 kHz, S5 = open
TELEFUNKEN Semiconductors
21 (23)
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
Packaging Information
Package SDIP40
Dimensions in mm
15.34
15.14
37.4
36.9
4.9
4.3
13.9
13.7
0.7
0.38
0.20
3.3
0.53
0.48
17.2
16.0
33.782
1.778
technical drawings
according to DIN
specifications
13027
1
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)
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
U3761MB
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
TELEFUNKEN Semiconductors
23 (23)
Rev. A2, 23-Apr-97
Preliminary Information
相关型号:
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