U4084B

U4084B TEMIC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 26

Technical content

Features

/C0068Low-voltage operation: 3.0 to 6.5 V /C0068Attenuator gain range between transmit and receive: 52 dB /C0068Four-point signal sensing for improved sensitivity /C0068Monitoring system for background-noise level /C0068Microphone-amplifier gain adjustable /C0068Mute function /C0068Chip disable for active/ standby operation /C0068Dial tone detector /C0068Compatible with the speaker amplifier U4083B /C0068Case: DIP24 or SO24 Benefits /C0068Fast channel switching enables quasi duplex operation /C0068Low current consumption for high output volume /C0068Optimized U3800BM interface

Figure 1. Block diagram

0.1 F 20k/C0087

Figure 2. Block diagram with external circuit

Rev. A1, 31-Jan-97 Preliminary Information 4 (26) Pin Description Pin Symbol Function

1 GND Ground

2 NC Not connected

3 CD Chip disable. A logic LOW (< 0.8 V) sets normal operation. A logic HIGH (> 2.0 V) disables the IC to conserve power. The input impedance is nominally 90 k/C0087/C0046 4 V S Supply voltage 2.8 to 6.5 V , approximately @ 4 mA. The AGC circuit reduces the receive attenuator gain @ 25 dB. Receive mode @ 2.8 V . 5 TO Transmit attenuator output. The DC level is approximately V B . 6 TI Transmit attenuator input. Max. signal level is 350 mV rms. The input impedance is approxi- mately 10 k/C0087/C0046 7 MICO Microphone amplifier output. The gain is set by external resistors. 8 MIC Microphone amplifier input. The bias voltage is approximately V B . 9 MUTE Mute input. A logic LOW (< 0.8 V) sets normal operation. A logic HIGH (> 2.0 V) mutes the microphone amplifier without affecting the rest of the circuit. The input impedance is nominally 90 k/C0087/C0046 10 VCI V olume control input. When VCI = V B , the receive attenu- ator is at maximum gain in the receive mode. When VCI = 0.3 V B , the receive gain is 35 dB lower. This does not affect the transmit mode. Pin Symbol Function 11 C T Response time. An RC at this pin sets the response time for the circuit to switch modes. 12 V B Output voltage ≈ VS/2. It is a system AC ground, and biases the volume control. A filter cap is required.

13 CPT An RC at this pin sets the time

constant for the transmit background monitor.

14 TLI2 Transmit-level detector input on the

microphone/ speaker side.

15 TLO2 Transmit-level detector output on

the microphone/ speaker side, and input to the transmit background monitor.

16 RLO2 Receive-level detector output on the

17 RLI2 Receive-level detector input on the

18 RI Input receive attenuator and dial-

tone detector. The max. input level is 350 mV rms. The input impedance is approxi- mately 10 k/C0087/C0046 19 RECO Receive attenuator output. DC level is approximately VB .

20 TLI1 Transmit-level detector input on the

21 TLO1 Transmit-level detector output on

22 RLO1 Receive-level detector output on the

line side, and input to the receive background monitor

23 RLI1 Receive-level detector input on the

24 CPR An RC at this pin sets the time

constant for the receive background monitor

Rev. A1, 31-Jan-97 5 (26) Absolute Maximum Ratings Reference point Pin 1, Tamb = 25°C, unless otherwise specified. Parameters Symbol Value Unit Supply voltage Pin 4 V S –1.0 to +7.0 V V oltages Pins 3 and 9 Pin 10 Pins 6 and 18 –1.0 to (VS + 1.0) –1.0 to (VS + 0.5) –0.5 to (VS + 0.5) V Storage temperature range Tstg –55 to +150 °C Junction temperature Tj 125 °C Ambient temperature range Tamb –20 to +60 °C Power dissipation Tamb = 60°C DIP24 SO24 Ptot Ptot 650 520 mW Maximum Thermal Resistance Parameters Symbol Value Unit Junction ambient DIP24 SO24 R thJA R thJA 100 120 K/W K/W Operation Recommendation Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Supply voltage Pin 4 V S 3.5 – 6.5 V CD input MUTE input Pin3 Pin 9 0 – V S V Output current Pin 12 IB – – 500 /C0109A V olume control input Pin 10 VCI 0.3/C0032V B – V B V Attenuator input signal voltage Pins 6 and 18 0 – 350 mV rms Microphone amplifier 0 – 40 dB Load current @ RECO, TO Pins 5, 19 @ MICO Pin 7 /C00342.0 /C00341.0 mA Ambient temperature range Tamb –20 – +60 °C

Rev. A1, 31-Jan-97 Preliminary Information 6 (26)

Electrical Characteristics

Tamb = +25°C, VS = 5.0 V , CD /C0118 0.8 V , unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit Power supply Supply current V S = 6.5 V , CD = 0.8 V V S = 6.5 V , CD = 2.0 V IS 4.0 600.0 6.0 800.0 mA /C0109A CD input resistance V S = VCD = 6.5 V R CD 50.0 90.0 k/C0087 CD input voltage – High – Low V CDH V CDL 2.0 0.0 V S 0.8 V Output voltage V S = 3.5 V V S = 5.0 V V B 1.8 1.3 2.1 2.4 V Output resistance IVB = 1.0 mA R OVB 400.0 /C0087 Power supply rejection ratio C VB = 220 /C0109F, f = 1.0 kHz PSRR 54.0 dB Attenuators Receive attenuator gain f = 1.0 kHz, VCI = VB R mode, RI = 150 mVrms (VS = 5.0 V) R mode, RI = 150 mVrms (VS = 3.5 V) G R 4.0 6.0 8.0 dB Idle mode RI = 150 mVrms G RI –22.0 –20.0 –17.0 dB Range R to T mode /C0068G R3 49.0 52.0 54.0 V olume control range R mode, 0.3 VB < VCI < VB V CR 27.0 35.0 dB RECO DC voltage R mode V RECO V B V RECO DC voltage R to T mode /C0068V RECO /C003410 /C0034150.0 mV RECO high voltage IO = 1.0 mA RI = VB + 1.5 V V RECOH 3.7 V RECO low voltage IO = 1.0 mA RI = VB –1.0 V , output measured w.r.t. VB V RECOL –1.5 –1.0 V RI input resistance RI < 350 mVrms R RI 7.0 10.0 14.0 k/C0087 Transmit attenuator gainf = 1.0 kHz T mode, TI = 150 mVrms Idle mode, TI = 150 mVrms Range T to R mode G T G TI G TI 4.0 –22.0 49.0 6.0 –20.0 52.0 8.0 –17.0 54.0 dB TO DC voltage T mode V TO V B V TO DC voltage T to R mode V TO /C0034100 /C0034150.0 mV TO high voltage IO = –1.0 mA TI = VB + 1.5 V V TOH 3.7 V TO low voltage IO = +1.0 mA TI = VB – 1.0 V , output measured w.r.t. VB V TOL –1.5 –1.0 V TI input resistance TI < 350 mVrms RTI 7.0 10.0 14.0 k/C0087 Gain tracking G R + G T, @ T, Idle, R G TR /C00340.5 dB

Rev. A1, 31-Jan-97 7 (26) UnitMax.Typ.Min.SymbolTest Conditions / PinsParameters Attenuator control C T voltage Pin 14 – VB R mode, VCI = VB Idle mode T mode V CT 240.0 0.0 –240.0 mV C T source current R mode ICTR –85.0 –60.0 –40.0 /C0109A C T sink current T mode ICTT 40.0 60.0 85.0 /C0109A C T slow idle current ICTS 0.0 /C0109A C T fast idle internal resistance R FI 1.5 2.0 3.6 k/C0087 VCI input current IVCI –60.0 nA Dial tone detector threshold V DT 10.0 15.0 20.0 mV Microphone amplifier VMUTE < 0.8 V , GVCL = 31 dB Output offset V MICO – V B , Feedback R = 180 k/C0087 MICO vos –50.0 0.0 +50.0 mV Open loop gain f < 100 Hz G VOLM 70.0 80.0 dB Gain bandwidth GBW M 1.0 MHz Output high voltage IO = –1.0 mA, VS = 5.0 V V MICOH 3.7 V Output low voltage IO = +1.0 mA V MICOL 200.0 mV Input bias current (MIC) IBM –40.0 nA Muting (/C0068 gain) f = 1.0 kHz, VMUTE = 2.0 V

300 Hz < f < 10 kHz

G G –55.0 –68.0 dB dB MUTE input resistance V S = V MUTE = 6.5 V R MUTE 50.0 90.0 k/C0087 MUTE input high V MUTEH 2.0 V S V MUTE input low V MUTEL 0.0 0.8 V Distortion 300 Hz < f < 10 kHz THD M 0.15 % Level detectors and background-noise monitors Transmit receive switching threshold Ratio of current at RLI1 + RLI2 to 20 /C0109A at TLI1 + TLI2 to switch from T to R ITH 0.8 1.0 1.2 Source current at RLO1, RLO2, TLO1, TLO2 ILSO –2.0 mA Sink current at RLO1, RLO2, TLO1, TLO2 ILSK 4.0 /C0109A CPR, CPT output resistance IO = 1.2 mA R CP 150 /C0087 CPR, CPT leakage current ICPLK –0.2 /C0109A System distortion R mode From RI to RECO dR 0.5 3.0 % T mode From MIC to TO includes T attenuator dT 0.8 3.0 %

Rev. A1, 31-Jan-97 Preliminary Information 8 (26) Temperature Characteristics Parameter Typical Value @ 25°C Typical Change –20 to +60°C Supply current, CD = 0.8 V I S 4.0 mA –0.3%/°C Supply current, CD = 2.0 V I S 400.0 /C0109A –0.4%/°C V B output voltage, VS = 5.0 V V O 2.1 V +0.8%/°C Attenuator gain (max. gain) +6.0 dB 0.0008 dB/°C Attenuator gain (max. attenuation) –46.0 dB 0.004 dB/°C Attenuator input resistance (@ TI, RI) 10.0 k/C0087 +0.6%/°C Dial-tone detector threshold 15.0 mV +20.0 /C0109V/°C CT source, sink current /C003460.0 /C0109A /C00420.15%/°C Microphone, hybrid offset 0.0 mV /C00344.0 /C0109V/°C Transmit receive switching threshold 1.0 /C00340.02%/°C Sink current at RLO1, RLO2, TLO1, TLO2 4.0 /C0109A /C004210.0 nA/°C

eliminating the need for a “push-to-talk” switch. The handset has the same loop as the speakerphone. amplifier, and other associated functions. duplex operation required in a speakerphone. (from max. gain) frequency of approximately 100 kHz. Figure 3. Attenuator input stage control block which is measurable at the CT pin (Pin 11). monitoring the circuit’s mode.

Figure 4. Level detectors

Rev. A1, 31-Jan-97 Preliminary Information 12 (26) The single output of the control block controls the two attenuators. The effect of C1–C4 is as follows: Inputs Output C1 C2 C3 C4 Mode T T 1 X Transmit T R Y Y Fast idle R T Y Y Fast idle R R X 1 Receive T T 0 X Slow idle T R 0 0 Slow idle R T 0 0 Slow idle R R X 0 Slow idle X = don’t care; Y = C3 and C4 are not both 0. Terms Definition 11. “Transmit” means the transmit attenuator is fully on (+ 6.0 dB), and the receive attenuator is at max. atten- uation (– 46 dB). 12. “Receive” means both attenuators are controlled by the volume control. At max. volume, the receive attenuator is fully on (+ 6.0 dB), and the transmit attenuator is at max. attenuation (– 46 dB). 13. “Fast Idle” means both transmit and receive speech are present in approximately equal levels. The attenuators are quickly switched (30 ms) to idle until one speech level dominates the other. 14. “Slow Idle” means speech has ceased in both transmit and receive paths. The attenuators are then slowly switched (1 s) to idle mode. 15. Switching to the full transmit of receive modes from any other mode is at the fast rate (/C0091 30 ms). Summary 1. The circuit will switch to transmit mode if: a) both transmit level detectors sense higher signal levels relative to the respective receive level detectors (TLI1 versus RLI1, TLI2 versus RLI2), and b) the transmit background-noise monitor indicates the presence of speech 2. The circuit will switch to receive mode if: a) both receive level detectors sense higher signal levels relative to the respective transmit level detectors, and b) the receive background-noise monitor indicates the presence of speech 3. The circuit will switch to fast idle mode if the level detectors disagree on the relative strengths of the signal levels, and at least one of the background- noise monitors indicates speech. If, e.g., there is a signal at the microphone amp output (TLI2) to over- ride the speaker signal (RLI2) and there is sufficient signal at the receive input (RLI1) to override the signal at the hybrid output (TLI1), and either one or both background monitors indicate speech, then the circuit switches to fast idle mode. Undesired switching to idle mode may occur if one of the following conditions is met: a) when both persons speaking try to talk at the same time, and b) when one of the persons speaking is in a very noisy environment, forcing the other one to con- tinually override that noise level. In general, fast idle mode occurs rarely. 4. The circuit will switch to slow idle mode when a) both persons at the phone are quiet (no speech present), or b) when the speech levelof one of the persons talking is continuously overriden by noise at the other speaker’s location. The time required to switch the circuit between transmit, receive, fast idle and slow idle mode is deter-mined in part by the components at Pin 11, (see the section “Switching Times” for a more detailed explanation). A schematic of the C T circuitry is shown in figure 6.

Rev. A1, 31-Jan-97 17 (26) Design Hints Switching Time, Figure 6 The switching time of the U4084B circuit is determined by CT (Pin 11, refer to figure 6), and the capacitors at the level-detector outputs (RLO1, RLO2, TLO1, TLO2), see figure 2. The switching time from idle to receive or transmit mode is determined by the capacitor at C T, together with the internal current sources. The switching time is: /C0068T /C0043/C0068V /C0032C T I /C0043240 /C00325 60 /C004320.0 ms where: /C0068V = 240 mV C T =5 /C0109F I = 60 /C0109A If the circuit switches directly from receive to transmit mode (or vice-versa), the total switching time is 40 ms. The switching time depends on the mode selection. If the circuit is switching to “fast idle”, the time constant is determined by the C T capacitor, and the internal 2.0-k/C0087 resistor. With CT = 5.0 /C0109F, the time constant is approximately 10 ms, resulting in a switching time of approximately 30 ms (for 95% change). Fast idle is mode may occur if both persons are talking at the same time, thus trying to get control of the circuit. The switching time from idle back to either transmit or receive mode is described above. By switching to “slow idle”, the time constant is determined by the C T capacitor and RT, the external resistor (see figure 6). With CT = 5.0 /C0109F, and RT = 120 k/C0087, the time constant is approximately 600 ms, resulting a switching time of approximately 1.8 seconds (for 95% change). The switching to slow idle starts when both speakers have stopped talking. The switching time back to the original mode depends on how fast that person starts talking again. The sooner the speaking starts during the 1.8-second period, the faster the switching time since a smaller voltage excursion is required. The switching time is determined by the internal current source as described above. The above switching times occur after the level detectors have detected the appropriate signal levels, since their outputs operate the attenuator control block. The rise time of the level detectors’ outputs to new speech is quick by comparison (approximately 1.0 ms), determined by the internal 350 /C0087 resistor and the external capacitor (typically 2.0 /C0109F). The output’s decay time is determined by the external capacitor, and an internal 4.0-/C0109A current source giving a decay rate of 60 ms for a 120 mV excursion at RLO or TLO. The total response time of the circuit is not constant as it depends on the relative strength of the signals at the different level detectors and the timing of the signals with respect to each other. The capacitors at the four outputs (RLO1, RLO2, TLO1, TLO2) must have equal values (/C003410%) to prevent problems in timing and level response. The rise time of the level detector’s outputs is too short to be of significant. The decay time, however provides a significant part of the “hold time” necessary to hold the circuit during the normal pauses in speech. The components at the inputs of the level detectors (RLI1, RLI2, TLI1, TLI2) do not affect the switching time but rather affect the relative signal levels required to switch the circuit and the frequency response of the detectors. Design Equations Following definitions are used @ 1.0 kHz with reference to figures 2 and 21 whereas coupling capacitors are omitted for the sake of simplicity: MA is the gain of the microphone amplifier measured from the microphone output to TI (typically 35 V/V , or 31 dB); T is the gain of the transmit attenuator, measured from TI to TO; –G EXT is the gain of an external transmit amplifier (typically 10.2 V/V , or 20.1 dB) –G ST is the side-tone gain; –G EXR is the gain of an external receive amplifier; –G R is the gain of the receive attenuator measured from RI to RECO; –G SA is the gain of the speaker amplifier, mea- sured from RECO to the differential output of the speaker amplifier (typically 22 V/V or 26.8 dB); AC is the acoustic coupling, measured from the speaker differential voltage to the microphone output voltage.

Rev. A1, 31-Jan-97 Preliminary Information 20 (26) Some comments on the graph (figure 22): /C0068Acousting coupling and side-tone coupling were not included in equations 6 and 11. Those couplings will affect the actual performance of the final speaker- phone due to their interaction with speech at the microphone, and the receive signal coming in at Tip/ Ring. The effects of those couplings are difficult to predict due to their associated phase shifts and fre- quency response. In some cases, the coupling signal will add, and other times substract from the incoming signal. The physical design of the speakerphone en- closure, as well as the specific phone line to which it is connected, will affect the acoustic and side-tone couplings, respectively. /C0068The M R line helps define the maximum acoustic coupling permissible in a system, which can be found from the following equation: G AC(MAX( /C0043R 1 2 /C0032R 3 /C0032G MA Equation 12 is independent of the volume control setting. Conversely, the acoustic coupling of a designed system helps determine the minimum slope of that line. Using the component values of figure 2 in equation 12 yields a G AC(MAX) of –37 dB. Experience has shown, however, that an acoustic coupling loss of >40 dB is desirable. /C0068The M T line helps define the maximum sidetone cou- pling (GST ) permissible in the system, which can be found from the following equation: G ST /C0043R 1 2 /C0032R 2 Using the component values of figure 2 in equation 13 yields a maximum side-tone of 0 dB. Experience has shown, however, that a minimum of 6.0-dB loss is prefer- able. The above equations can be used to determine the resistor values for the level detector inputs. Equation 5 can be used to determine the R 1, 3 ratio and equation 9 can be used to determine the R1–R 2 ratio. In figure 21, R1–R 4 each represent the combined impedance of the resistor and coupling capacitor at each level detector input. The magnitude of each RC’s impedance should be kept within the range of 2.0 to 15 k/C0087 in the voiceband (due to the typi- cal signal levels present) to obtain the best performance from the level detectors. The specific R and C at each location will determine the frequency response of that level detector.

Application Information

The threshold for the dial-tone detector is internally set at 15 mV (10 mV rms) below V B (see figure 5). That threshold can be reduced by connecting a resistor from RI to ground. The resistor value is calculated from: R /C004310 k /C0426V B /C0068V –1 /C0427 where VB is the voltage at Pin 12, and /C0068V the amount of threshold reduction. By connecting a resistor from VS to RI, the threshold can be increased. The resistor value is calculated from: R /C004310 k /C0426V S–V B /C0068V –1 /C0427 where /C0068V is the amount of the threshold increase. Background-Noise Monitors For testing or circuit analysis purposes, the transmit or receive attenuators can be set to the “on” position by disabling the background noise monitors, and applying a signal so as activate the level detectors. Grounding the CPR pin will disable the receive background-noise monitor, thereby indicating the “presence of speech” to the attenuator control block. Grounding CPT does the same for the transmit part. Additionally, the receive background-noise monitor is automatically disabled by the dial-tone detector when- ever the receive signal exceeds the detector’s threshold. Transmit/Receive Detection Priority Although the U4084B was designed to have an idle mode such that the attenuators are halfway between their full-on and full-off positions, the idle mode can be biased towards the transmit or the receive side. By doing so, gaining control of the circuit from idle will be easier for that side towards which it is biased since that path will have less attenuation at idle. By connecting a resistor from C T (Pin 11) to ground, the circuit will be biased towards the transmit side. The resis- tor value is calculated from: R /C0043R T /C0426V B /C0068V –1 /C0427 where: RT = 120 k/C0087 (typ.) connected between Pin 11 and 12. /C0068V = VB – V11 (see figure 8). By connecting a resistor from CT (Pin 11) to VS, the cir- cuit will be biased towards the receive side. The resistor value is calculated from: R /C0043R T /C0426V S –V B /C0068V –1 /C0427 The switching time will be somewhat affected in each case due to the different voltage excursions required to get to transmit and receive from idle. For practical consider- ations, the /C0068V shift should not exceed 100 mV .

Rev. A1, 31-Jan-97 21 (26)

Applications

0.05/C0109F 5.1k/C0087 0.1/C0109F 0.1/C0109F 0.1 /C0109F 2/C0109F 2/C0109F 5.1k/C0087 0.05/C0109F 5.1k/C0087 0.1/C0109F 47/C0109F 100k/C0087 100k/C0087 /C0087 5/C0109F 20/C0109F 620/C0087 1k/C0087 220/C0109F 0.2/C0109F5.1k/C0087 0.1/C0109F 180k/C0087 220pF 0.02/C0109F 12679 8 7 65 123 4 U4083B 110k/C0087 10k/C0087 123 4 U4030B 56 7 8 19 18 17 16 15 14 13 9 10 12 11 10/C0087 68/C0087 1000/C0109F VZ= 15V 68nF 12k/C0087 470n F 8.2k/C0087 430/C0087 2.2/C0109F 10/C0109F 1k/C0087 10/C0109F 2k/C0087 1k/C0087 10/C0109F 68nF470nF 680/C0087 33k/C0087 2.2/C0109F 12k/C0087 18k/C0087 2.7k/C0087 390/C0087 100nF 100nF 53nF 10/C0109F a b 470nFDTMF 20k/C0087 9.1k/C0087 120k

Rev. A1, 31-Jan-97 Preliminary Information 22 (26) 123 4 U4084B 56 7 8 23 22 21 20 19 18 17 9 10 16 15 2/C0109F 10k/C0087 2/C0109F 47/C0109F 0.05/C0109F 5.1k/C0087 0.1/C0109F 0.1/C0109F 0.1 /C0109F 2/C0109F 2/C0109F 5.1k/C0087 0.05/C0109F 5.1k/C0087 0.1/C0109F 47/C0109F 100k/C0087 100k/C0087 120k/C0087 5/C0109F 20/C0109F 620/C0087 1k/C0087 220 /C0109F 0.2/C0109F5.1k/C0087 0.1/C0109F 180k/C0087 220pF 0.02/C0109F 12680 8 7 65 123 4 U4083B 110k/C0087 10k/C0087

Rev. A1, 31-Jan-97 23 (26) 123 4 U4084B 56 7 8 23 22 21 20 19 18 17 9 10 16 15 2 /C0109F 36k /C0087 2/C0109F 15 /C0109F 0.05/C0109F 5.1k/C0087 0.1/C0109F 0.1/C0109F 0.1 /C0109F 2 /C0109F 2 /C0109F 6.2k/C0087 0.05/C0109F 5.1k/C0087 0.1/C0109F 15 /C0109F 300k/C0087 300k /C0087 0.1/C0109F 180k /C0087 0.1/C0109F 220pF 1.5M /C0087 12681 3 2 1 44 43 42 41 40654 18 19 20 21 22 23 24 25 26 27 28 RAL CAL CVDD RSAI CSAI CVSA CSO RAGA1 RAGA2 CVCC CEI RDC MIC CZA RZAC CZA C2 CEM1 CEAR EAR CACL RACL RDTMF2 RDTMF1 CEM2 CDTMF2 CDTMF1CTO RTO CAD RAD DSC LSC TSC VZ=30V Line interface VZ= 15V CSC RCK X1 455kHz U3800BM CREC RSTL1 CSTL1 Micro controller RIN 1 # 570 26 98 3R * RD Pulse Keyboard 120k /C0087 5 /C0109F 20 /C0109F 1k /C0087 220 /C0109F 0.2/C0109F 5.1k/C0087 0.02/C0109F 620 /C0087 SW3 SW1 RSTL3 CSTL2 CSTL3 RSTL2 RSTS3 CSTS2 CSTS3 RSTS2 RSTS1 CSTL1 L1 L2 RV CRP RRP SW2

Rev. A1, 31-Jan-97 Preliminary Information 24 (26) 123 4 U4084B 56 7 8 23 22 21 20 19 18 17 9 10 16 15 2µF 36kΩ 2µF 15µF 0.05µF 5.1kΩ 0.1µF 0.1µF 0.1 µF 2µF 2µF 6.2kΩ 0.05µF 5.1kΩ 0.1µF 15µF 300k Ω 300k Ω 120kΩ 5µF 20µF 620Ω 1kΩ 220µF 0.2µF5.1kΩ 0.1µF 180k Ω 0.1µF 220pF 1.5M Ω 0.02µF 12682

Rev. A1, 31-Jan-97 25 (26)

Package Information

32.26 31.24 Dimensions in mm 1.65 1.02 0.58 0.38 2.54 4.06 3.56 3.81 3.18 0.89 0.38 15.49 14.99 13.97 12.70 17.02 15.24 0.38 0.20 27.94 24 13 11 2 13037 technical drawingsaccording to DINspecifications Dimensions in mm 15.55 15.30 2.35 0.4 1.27 13.97 9.15 8.65 0.25 0.10 7.5 7.3 0.25 10.50 10.20 24 13 11 2

Rev. A1, 31-Jan-97 Preliminary Information 26 (26) 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