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U4089B
Monolithic Integrated Feature Phone Circuit
Description
The telephone circuit U4089B is a linear integrated circuit for use in feature phones, answering machines and fax machines. It contains the speech circuit, sidetone equivalent and ear protection rectifiers. The circuit is line-powered and contains all components necessary for the amplification of signals and adaptation to the line. An integrated voice switch with loudspeaker amplifier enables loudhearing or hands-free operation. With an anti-feedback function, acoustical feedback during loudhearing can be reduced significantly. The generated supply voltage is suitable for a wide range of peripheral circuits.
Features
D DC characteristic adjustable D Transmit and receive gain adjustable D Symmetrical input of microphone amplifier D Anti-clipping in transmit direction D Automatic line-loss compensation D Built-in ear protection D DTMF and MUTE input D Adjustable sidetone suppression independent
of sending and receiving amplification
D Selectable line impedance D Voice switch D Supply voltages for all functional blocks of a
subscriber set
D Operation possible from 10-mA line current
Benefits
D Complete system integration of analog signal
processing on one chip
D Very few external components
D Integrated amplifier for loudhearing operation D Anti-clipping for loudspeaker amplifier D Improved acoustical feedback suppression
Applications
Feature phone, answering machine, fax machine, speaker phone
Speech circuit
Audio amplifier
Voice switch
Dialer
12683
Ordering Information
Type U4089B-MSD U4089B-MFN U4089B-MFNG3 Package SDIP30 SSO44 SSO44 Remarks Tubes Tubes Taped and reeled
Rev. A2, 01-Sep-98
1 (23)
U4089B
Block Diagram
12685
GT 1(44)
STO 24(32)
VL 600
IMPSEL AGA IND 12(20) 22(30) 5(6)
SENSE VB 8(9) 9(10)
VMP 11(13)
6(7)
MIC1 MIC2 DTMF
4(4) 3(3) MIC
TXA
900 Power supply
25
(33)
VM
2(1)
Impedance control
TX ACL
7
(8)
GND
TTXA
29(41)
19(27) INLDR INLDT TLDR ATAFS SAO Acoustical feedback 20(28) suppression TLDT control
21(29) 17(25) 18(26)
AGA control Transmit mute control
Current supply
23
(31)
IREF
Supply
10(11)
TSACL
13(21) SACL
R- attenuation
SAI
15(23)
14(22) GSA
16(24) MUTX
27(39) RECO
28(40) GR
26(36) STI
30(42) RECIN
( ) Pinnings of SSO44 package
Figure 1. Block diagram Table 1. Typical values of external components (figure next page)
Name C2 C3 C4 C5 C7 C8 C10 C11 C12 C14 C15 2 (23)
Value 4.7 nF 220 mF 47 mF 1 mF 10 mF
Name C16 C17 C18 C21 C23 C24 C25 C26 C27 C28 R2
47 mF 10 mF 10 mF 1 mF 6.8 nF 10 nF 100 nF 470 nF 10 mF 20 kW 33 nF
Value
Name R3 R4 R6 R8 R9 R10 R11 R12 R13 R14 R15
Value >68 kW 10 kW 62 kW 22 kW 330 kW 3 kW 62 kW 30 kW 62 kW 120 kW 47 kW
Name R16 R17 R18 R21 R22 R23 R24 R25 R26 R29 R30
Value 1 kW 1.2 kW 30 kW 15 kW 330 kW 220 kW 68 kW 2 kW 3.3 kW 1 kW 12 kW
100 mF 150 nF 68 nF 33 nF 100 nF 1 mF
Rev. A2, 01-Sep-98
VM hook switch C2 C3 R2 13 V VM R3 R4 C4 R6 C5 C8 R 26 R1 C7 Tip
R 25
Rev. A2, 01-Sep-98
C 24 4(4) 21(29) Micro- phone 1(44) 24 (32) 6(7) 22(30) 5(6) 8(9) 9(10) 11(13) 25(33) 7 (8) 23(31) Ring 3(3) 2(1) C 21 29(41) 19(27) 18(26) C 18 21(29) C 17 20(28) R 18 17(25) C 16 10(11)
C 23
R 24
C 25
DTMF
HF-Mic
R 23
R 22
RECO
C 27
R 30
C 26
R 29
LOGTX
U4089B
Figure 2. Application for hands-free operation
C 15 13(21) C 14 15(23) 14(22) 16(24) 27(39) R 15 R 14 R 13 R 12 C 28 28(40) 26(36) 30(42) R 11 VL R 10 Earpiece R9 C 12 R8 C 11 LOGTX C 10 VM VM to pin 32
Loud speaker
VM
R 17
R 16
VB
R 21 Micro controller BC177
12686
U4089B
V MP
3 (23)
( ) Pinnings of SSO44 Package
U4089B
Pin Description
GT DTMF MIC2 MIC1 IND VL GND SENSE VB SAO VMP IMPSEL TSACL 1 2 3 4 5 6 7 8 9 10 11 12 13 30 29 28 27 26 25 24 23 22 21 20 19 18 17 RECIN TTXA GR RECO STI VM VL STO GND IREF SENSE AGA VB 10 TLDR TLDT INLDR INLDT ATAFS SAO 11 NC 12 VMP 13 NC 14 NC 15 NC 16 NC 17 NC 18 NC 19 IMPSEL 20 TSACL 21 GSA 22
14910
DTMF NC MIC2 MIC1 NC IND
1 2 3 4 5 6 7 8 9
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
GT NC RECIN TTXA GR RECO NC NC STI NC NC VM STO IREF AGA TLDR TLDT INLDR INLDT ATAFS MUTX SAI
GSA 14 SAI 15
12687
16 MUTX
Figure 3. Pinning SDIP30
Figure 4. Pinning SSO44
4 (23)
Rev. A2, 01-Sep-98
U4089B
Pin 1 (44) Symbol GT Function A resistor from this pin to GND sets the amplification of microphone and DTMF signals; the input amplifier can be muted by applying VMP to GT. Input for DTMF signals. Also used for the answering machine and hands-free input. Non-inverting input of microphone amplifier Inverting input of microphone amplifier The internal equivalent inductance of the circuit is proportional to the value of the capacitor at this pin. A resistor connected to ground may be used to reduce the DC line voltage. Line voltage Reference point for DC- and AC-output signals A small resistor (fixed) connected from this pin to VL sets the slope of the DC characteristic and also affects the line-length equalization characteristics and the line current at which the loudspeaker amplifier is switched on. Unregulated supply voltage for peripheral circuits (voice switch); limited to typically 7 V. Output of loudspeaker amplifier Regulated supply voltage 3.3 V for peripheral circuits. The maximum output current is 2 mA. 17 (25) ATAFS Pin 15 (23) 16 (24) Symbol SA I MUTX Function Speaker amplifier input (for loudspeaker, tone ringer and hands-free use) Three-state input of transmit mute: 1) Speech condition; inputs MIC1 / MIC2 active 2) DTMF condition; input DTMF active. A part of the input signal is passed to the receiving amplifier as a confidence signal during dialing. 3) Input DTMF used for answering machine and hands-free use; receive branch is not affected. Attenuation of acoustical feedback suppression. Maximum attenuation of AFS circuit is set by a resistor at this pin. Without the resistor, AFS is switched off. Input of transmit level detector Input of receive level detector Time constant of transmit level detector Time constant of receive level detector Automatic gain adjustment with line current. A resistor connected from this pin to GND sets the starting point. Max. gain change is 6 dB. Internal reference current generation; RREF = 62 k; IREF = 20 A Side-tone reduction output. Output resistance is approximately 300 . Maximum load impedance is 10 k. Reference node for microphoneearphone and loudspeaker amplifier. Supply for electret microphone (IM 300 mA). Input for side-tone network Output of receiving amplifier A resistor connected from this pin to GND sets the receiving ampli- fication of the circuit; amplifier RA1 can be muted by applying VMP to GR Time constant of anti-clipping in transmit path Input of receiving path; input impedance is typically 80 kW
2 (1)
DTMF
3 (3) 4 (4) 5 (6)
MIC 2 MIC 1 IND
6 (7) 7 (8) 8 (9)
VL GND SENSE
18 (26) 19 (27) 20 (28) 21 (29) 22 (30)
INLDT INLDR TLDT TLDR AGA
9 (10)
VB
10 (11) 11 (13)
SAO VMP
23 (31) 24 (32)
IREF STO
12 (20)
IMPSEL Control input for selection of line impedance 1. 600 W 2. 900 W 3. Mute of second transmit stage (TXA); also used for indication of external supply (answering machine); last chosen impedance is stored TSACL GSA Time constant of anti-clipping of speaker amplifier Current input for setting the gain of the speaker amplifier. Adjustment characteristic is logarithmical. For RGSA > 2 M, the speaker amplifier is switched off.
25 (33)
VM
26 (36) 27 (39) 28 (40)
STI RECO GR
13 (21) 14 (22)
29 (41) 30 (42)
TTXA RECIN
Rev. A2, 01-Sep-98
5 (23)
U4089B
DC Line Interface and Supply-Voltage Generation
The DC line interface consists of an electronic inductance and an output stage which charges the capacitor at VB. The value of the equivalent inductance is given by: L = RSENSE CIND (RDC R30) / (RDC + R30) In order to improve the supply during worst-case operating conditions, PNP current source IBOPT
VL 10 RSENSE CIND 10 F IND RDC + - R30 30 k 7V VOFFS + - 3.3 V
supplies an extra amount of current to the supply voltages when the NPN in parallel is unable to conduct current. The U4089B contains a series regulator which provides a supply voltage VMP of 3.3 V at 2 mA suitable for a microprocessor.
*
*
SENSE IBOPT < 5 mA
VMP 3.3 V/ 2 mA
47 F
VB 220 F
12688
Figure 5. DC line interface with electronic inductance and generation of regulated and unregulated supply VB Power supply Voltage regulator 7V VMP
VL
LIDET
ES VLON
IMPED CONTR
IMPSEL
TXA TXACL
OFFSA COMP
SAL, SA SACL
AFS
MIC, DTMF AGA, RA TX MUTE MUT REC, STBAL RECATT
12689
Figure 6. The supply of functional blocks is controlled by input voltages VL, VB
6 (23)
Rev. A2, 01-Sep-98
U4089B
1. In speech condition, the system is supplied by the line current. If the LIDET-block detects a line voltage above the fixed threshold (1.9 V), the internal signal VLON is activated, thus switching on all blocks of the chip. For line voltages below 1.9 V, the switches remain in their quiescent state as shown in the diagram. OFFSACOMP disables the group listening feature (SAI, SA, SACL, AFS) below line currents of approximately 10 mA. 2. Selecting IMPSEL = high impedance activates all switches at the ES line. circuit which uses a modified voice switch topology. Figure 7 shows the basic system configuration. Two attenuators (TX ATT and RX ATT) reduce the critical loop gain by introducing an externally adjustable amount of loss either in the transmit or in the receive path. The sliding control in block ATT CONTR determines whether the TX or the RX signal has to be attenuated. The overall loop gain remains constant under all operating conditions. Selection of the active channel is made by comparison of the logarithmically compressed TX- and RX- envelope curve. The system configuration for group listening, which is realized in the U4089B, is illustrated in figure 8. TXA and SAI represent the two attenuators; the logarithmic envelope detectors are shown in a simplified way (operational amplifiers with two diodes).
Acoustic Feedback Suppression
Acoustical feedback from the loudspeaker to the handset microphone may cause instability in the system. The U4089B offers a very efficient feedback suppression
TX attenuation Handset microphone
Logarithmic Hybrid Attenuation control Line
Logarithmic Loud speaker
RX attenuation
12692
Figure 7. Basic voice-switch system
Rev. A2, 01-Sep-98
7 (23)
U4089B
VB VL ZL GT INLDT TLDT STO VL
VBG
- + Zint
SAO
AFS control Max att. AGA
GSA SAI SAI TLDR
- VBG +
RECIN RECO GR STI STO STN
12691
INLDR
Figure 8. Integration of the acoustic feedback-suppression circuit into the speech circuit environment
TLDT TXA SAI
RLDT
INLDT AGA AGA
RLDR INLDR IATGSA
IAGAFS
IGSA
TLDR RATAFS
ATAFS
GSA
12693
Figure 9. Acoustic feedback suppression by alternative control of transmit- and speaker amplifier gain
8 (23)
Rev. A2, 01-Sep-98
U4089B
A detailed diagram of the AFS (acoustic feedback suppression) is given in figure 9. Receive and transmit signals are first processed by logorithmic rectifiers in order to produce the envelopes of the speech at TLDT and RLDT. After amplification, a decision is made by the differential pair which direction should be transmitted. The attenuation of the controlled amplifiers TXA and SAI is determined by the emitter current IAT which is comprised of three parts: IATAFS sets maximum attenuation IATGSA decreases the attenuation when speaker amplifier gain is reduced IAGAFS decreases the attenuation according to the loopgain reduction caused by the AGA-function IAT = IATAFS - IATGSA - IAGAFS
Operating Range of Speaker Amplifier
The basic behavior is illustrated in figure 11. Actual values of ILON/ILOFF vary slightly with the adjustment of the DC-characteristics and the selection of the internal line impedance.
13284
SA on
DG = IAT
0.67 dB/mA
SA off
Figure 10 illustrates the principal relationship between speaker amplifier gain (GSA) and attenuation of AFS (ATAFS). Both parameters can be adjusted independently, but the internal coupling between them has to be considered. The maximum value to be used of GSA is 36 dB. The shape of the characteristic is moved in the x-direction by adjusting resistor RATAFS, thus changing ATAFSm. The actual value of the attenuation (ATAFSa), however, can be determined by reading the value which belongs to the actual gain GSAa. If the speaker amplifier gain is reduced, the attenuation of AFS is automatically reduced by the same amount in order to achieve a constant loop gain. Zero attenuation is set for speaker gains GSA GSA0 = 36 dB - ATAFSm.
IL off
IL on
IL
Figure 11. Threshold of speaker amplifier
7 RDC= 6 VL ( V ) RDC=130kW 5 RDC=68kW
v
4
94 8957
ATAFS (dB) ATAFS m ATAFS a RATAFS RATAFS not usable
94 9131
3 10 12 14 16 18 20 IL ( mA )
GSAo
GSA a
36 dB
GSA (dB)
= ILON at line impedance = 600 W = ILOFF = ILON at line impedance = 900 W = ILOFF
Figure 12. Comparator thresholds depend on DC mask and line impedance
Figure 10. Reducing speaker amplifier gain results in an equal reduction of AFS attenuation
Rev. A2, 01-Sep-98
9 (23)
U4089B
Absolute Maximum Ratings
Parameters Line current DC line voltage Junction temperature Ambient temperature Storage temperature Total power dissipation, Tamb = 60C Symbol IL VL Tj Tamb Tstg Ptot Ptot Value 140 12 125 - 25 to + 75 - 55 to + 150 1 0.9 Unit mA V C C C W W
SDIP30 SSO44
Thermal Resistance
Junction ambient Parameters SDIP30 SSO44 Symbol RthJA RthJA Value 50 70 Unit K/W K/W
Electrical Characteristics
f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25C, RGSA = 560 kW, Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified. Parameters DC characteristics DC voltage drop over circuit Test Conditions / Pin Symbol Min. Typ. Max. Unit Fig.
IL = 2 mA 2.4 IL = 14 mA 5.0 4.6 5.4 VL 7.5 IL = 60 mA 9.4 IL = 100 mA 8.8 10.0 Transmission amplifier, IL = 14 mA, VMIC = 2 mV, RGT = 27 kW, unless otherwise specified Adjustment range of transmit GT 40 45 50 gain Transmitting amplification RGT = 12 kW 47 48 49 GT RGT = 27 kW 39.8 41.8 Frequency response IL 14 mA, DGT f = 300 to 3400 Hz Gain change with current Pin 20 open DGT IL = 14 to 100 mA Gain deviation Tamb = - 10 to + 60C DGT CMRR of microphone CMRR 60 80 amplifier Input resistance of MIC RGT = 12 kW 50 Ri amplifier RGT = 27 kW 75 45 110 Distortion at line IL > 14 mA dt 2 VL = 700 mVrms Maximum output voltage IL > 19 mA, d < 5% VLmax 1.8 3 4.2 Vmic = 25 mV CTXA = 1 mF Noise at line psophometrically IL > 14 mA no - 80 -72 weighted GT = 48 dB Anti-clipping attack time CTXA = 1 mF 0.5 release time each 3 dB overdrive 9
V
20
dB dB dB dB dB dB kW % dBm dBmp ms ms
23 23 23 23 23 23 23 23 23 23 23
w
"0.5 "0.5 "0.5
10 (23)
Rev. A2, 01-Sep-98
U4089B
Electrical Characteristics (continued)
Parameters Gain at low operating current Test Conditions / Pin IL = 10 mA IMP = 1 mA RDC = 68 kW Vmic = 1 mV IM = 300 mA IL = 10 mA IM = 300 mA IMP = 1 mA RDC = 68 kW Vmic = 10 mV IL = 100 mA, RAGA = 20 kW IL 14 mA Mutx = open Symbol Min. Typ. Max. Unit Fig.
GT
40
42.5
dB
23
Distortion at low operating current
dt
5
%
23
Line-loss compensation
Mute suppression GTM 60 80 a) MIC muted (microphone preamplifier) Receiving amplifier, IL = 14 mA, RGR = 62 k, unless otherwise specified, VGEN = 300 mV Adjustment range of receiving IL 14 mA, GR -8 +2 gain single-ended Receiving amplification RGR = 62 kW - 7.75 -7 - 6.25 GR RGR = 22 kW 1.5 Amplification of DTMF signal IL 14 mA GRM 1 4 7 from DTMF IN to RECO VMUTX = VMP Frequency response IL > 14 mA, DGRF f = 300 to 3400 Hz Gain change with current IL = 14 to 100 mA DGR Gain deviation Tamb = - 10 to + 60C DGR Ear protection IL 14 mA EP 1.1 VGEN = 11 Vrms MUTE suppression IL 14 mA DGR 60 DTMF operation VMUTX = VMP IL = 14 mA Output voltage d 2% 0.5 Zear = 68 nF Maximum output current Zear = 100 W 4 d 2% Receiving noise Zear = 68 nF + 100 W ni - 80 - 77 psophometrically weighted IL 14 mA Output resistance Output against GND Ro 10 Line-loss compensation RAGA = 20 kW, DGRI - 7.0 - 6.0 - 5.0 IL = 100 mA Gain at low operating current IL = 10 mA IMP = 1 mA GR -8 -7 -6 IM = 300 mA VGEN = 560 mV RDC = 68 kW AC impedance Zimp 840 900 960 Distortion at low operating IL = 10 mA current IMP = 1 mA dR 5 VGEN = 560 mV RDC = 68 kW
w w w
DGTI
- 6.4
- 5.8
- 5.2
dB dB
23 23
dB dB dB dB dB dB Vrms dB Vrms mA (peak) dBmp
W
23 23 23 23 23 23 23 23 23 23 23 23 23
w w
"0.5 "0.5 "0.5
v
v
w
dB
dB
23
W
23 23
%
Rev. A2, 01-Sep-98
11 (23)
U4089B
Electrical Characteristics (continued)
Parameters Speaker amplifier Minimum line current for operation Input resistance Gain from SAI to SAO Test Conditions / Pin No ac signal Pin 24 VSAI = 3 mV, IL = 15 mA, RGSA = 560 kW RGSA = 20 kW Load resistance RL = 50 W, d < 5% VSAI = 20 mV IL = 15 mA IL = 20 mA IL > 15 mA IL = 15 mA Tamb = - 10 to + 60C IL = 15 mA, VL = 0 dBm, VSAI = 4 mV Pin 23 open IL = 15 to 100 mA IL = 15 to 100 mA IL = 15 mA f = 300 to 3400 Hz 20 dB over drive Symbol ILmin 14 GSA Min. Typ. Max. 15 22 Unit mA kW Fig. 22 23 23
35.5
36.5 -3
37.5
dB dB
Output power
23 PSA PSA nSA 3 7 20 200 mW mW
Output noise (input SAI open) psophometrically weighted Gain deviation Mute suppression
mVpsoph
dB
23 23
DGSA
VSAO
"1
- 60
dBm dB MW dB ms ms
23 23 23 23 23 23 23
Gain change with current Resistor for turning off speaker amplifier Gain change with frequency
DGSA
RGSA 0.8 1.3
"1
2
DGSA
"0.5
Attack time of anti-clipping tr 5 Release time of anti-clipping tf 80 DTMF amplifier Test conditions: IMP = 2 mA, IM = 0.3 mA, VMUTX = VMP Adjustment range of DTMF gain IL = 15 mA GD 40 Mute active DTMF amplification IL = 15 mA, VDTMF = 8 mV GD 40.7 41.7 Mute active: MUTX = VMP Gain deviaton IL = 15 mA GD Tamb = - 10 to + 60C Input resistance RGT = 27 kW, 60 180 Ri RGT = 15 kW 26 70 Distortion of DTMF signal IL 15 mA dD VL = 0 dBm Gain deviation with current IL = 15 to 100 mA DGD AFS acousting feedback suppression Range of attenuation 0 IL 15 mA Attenuation of transmit gain IL 15 mA, IINLDT = 0 mA DGT 45 RATAFS = 30 kW IINLDR = 10 mA
50
dB
42.7
dB
23
"0.5
300 130 2
dB kW % dB dB dB
23 23 23 23 23 23
w w w
"0.5
50
12 (23)
Rev. A2, 01-Sep-98
U4089B
Electrical Characteristics (continued)
Parameters Attenuation of speaker amplifier Test Conditions / Pin IL 15 mA IINLDP = 0 m RATAFS = 30 kW IINLDR = 10 m IL
w
Symbol
Min.
Typ. 50
Max.
Unit dB V
Fig. 23 23
DGSA
VATAFS 1.5
AFS disable
w 15 mA w
Supply voltages, Vmic = 25 mV, Tamb = - 10 to + 60C VMP IL = 14 mA, RDC = 68 kW IMP = 2 mA VM IL 14 mA, IM = 300 mA RDC = 130 kW VB IB = + 20 mA, IL = 0 mA MUTX input Input current VMUTX = VMP VMUTX = GND Input high Input voltage Input low
VMP
3.1
3.3
3.5
V
23
VM VB IMUTX IMUTX VMUTX VMUTX
1.4 7
3.3 7.6
V V
23 23
20 - 20 VMP - 0.3 V
30 - 30
mA mA
V V
21 21 21
0.3
U4089B Control
0 MUTX MIC 1/2 transmit enabled receive enable AFS = on AGA = on TXACL = on DTMF transmit enabled receive enable AFS = on AGA = on TXACL = on DTMF transmit enabled DTMF to receive enable AFS = off AGA = off TXACL = off MODE Speech 0 IMPSEL Line impedance = 600 W TXA = on ES = off Line impedance = 600 W TXA = off ES = on Line impedance = 900 W TXA = off ES = on Line impedance = 900 W TXA = on ES = off MODE Speech
0 to Z For answering machine
Transmit mute
Z
1 to Z
Transmit mute
1
DTMF dialling
1
Speech
Logic-level 0 = < (0.3 V) Z = > (1 V) < (VMP - 1 V) or (open input) 1 = > (VMP - 0.3 V)
AFS = AGA = TXACL = ES =
Acoustical feedback-supression control Automatic gain adjustment Transmit anti-clipping control External supply
Rev. A2, 01-Sep-98
13 (23)
U4089B
94 8856
Figure 13. Typical DC characteristic
GT (dB)
RGT (kohm)
94 8860
Figure 14. Typical adjustment range of the transmit gain
14 (23)
Rev. A2, 01-Sep-98
U4089B
94 9680
Figure 15. Typical adjustment range of the receive gain
948855
Figure 16. Typical AGA characteristic
Rev. A2, 01-Sep-98
15 (23)
U4089B
94 8858
Figure 17. Typical load characteristic of VB for a maximum (RDC = infinity) DC characteristic and a 3-mW loudspeaker output
94 8874
Figure 18. Typical load characteristic of VB for a medium DC characteristic (RDC = 130 kW) and a 3-mW loudspeaker output
16 (23)
Rev. A2, 01-Sep-98
U4089B
94 8861
Figure 19. Typical load characteristic of VB for a minimum DC characteristic (RDC = 68 kW) and a 3-mW loudspeaker output
Rev. A2, 01-Sep-98
17 (23)
U4089B
Figure 20. DC voltage absolut
18 (23)
Rev. A2, 01-Sep-98
U4089B
Figure 21. DC voltage current test
Rev. A2, 01-Sep-98
19 (23)
U4089B
Figure 22. DC ramps
20 (23)
Rev. A2, 01-Sep-98
U4089B
Figure 23. AC tests
Rev. A2, 01-Sep-98
21 (23)
U4089B
Package Information
Package SDIP30
Dimensions in mm
27.5 27.1 27.3 27.1 0.9 10.26 10.06 8.7 8.5
4.8 4.2 3.3 0.35 0.25
1.778
0.53 0.43 24.892
1.1 0.9 12.2 11.0 16
30
technical drawings according to DIN specifications 13046
1
15
Package SSO44
Dimensions in mm
18.05 17.80
9.15 8.65 7.50 7.30
2.35 0.3 0.8 16.8 44 23 0.25 0.10
0.25 10.50 10.20
technical drawings according to DIN specifications 13040
1
22
22 (23)
Rev. A2, 01-Sep-98
U4089B
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 Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
Rev. A2, 01-Sep-98
23 (23)

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