MT88L70AN1 Zarlink, MT88L70AN1 Datasheet
MT88L70AN1
Specifications of MT88L70AN1
Related parts for MT88L70AN1
MT88L70AN1 Summary of contents
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... Copyright 1997-2005, Zarlink Semiconductor Inc. All Rights Reserved. 3 Volt Integrated DTMF Receiver MT88L70AE MT88L70AS MT88L70AN MT88L70ASR MT88L70ANR MT88L70AE1 MT88L70AN1 MT88L70ANR1 MT88L70AS1 MT88L70ASR1 Description The MT88L70 is a complete 3 Volt, DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters ...
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... VDD IN+ 17 St/GT IN- 16 ESt GS 15 StD VRef 14 Q4 INH 13 Q3 PWDN OSC1 10 TOE OSC2 VSS Figure 2 - Pin Connections Description /2 is used to bias inputs at mid-rail (see Figure Zarlink Semiconductor Inc. Data Sheet 20 1 VDD 2 19 St/ ESt 17 4 StD TOE 20 PIN SSOP ...
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... This facility, together with the capability of selecting MT88L70 Description frees the device to accept a new tone pair. The GT output acts to reset the ), v reaches the threshold ( the steering logic to register the tone pair, c TSt 3 Zarlink Semiconductor Inc. Data Sheet detected at TSt ...
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... A value for C of 0.1 µF is recommended for most applications, leaving selected by the designer. MT88L70 TOE INH ESt undetected, the output code will remain the same as the previous detected code Table 1 - Functional Decode Table REC DP GTP GTA is the minimum signal duration to be recognized by REC 4 Zarlink Semiconductor Inc. Data Sheet ...
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... REC would be appropriate for extremely noisy environments where fast acquisition t =( GTP =(R C GTA St/ ESt a) decreasing t GTP t =( GTP =( GTA St/ ESt b) decreasing t Figure 4 - Guard Time Adjustment 5 Zarlink Semiconductor Inc. Data Sheet / TSt /( TSt / ( TSt ) TSt < GTP GTA / ( TSt ) TSt > GTA GTP ...
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... Figure 6 (Single-ended Input Configuration). MT88L70 biasing the input at 1/2V Ref Ref = All resistors are ± 1% tolerance 100 kΩ All capacitors are ± 5% tolerance kΩ 37.5 kΩ diff INDIFF 1 ωC Figure 5 - Differential Input Configuration 6 Zarlink Semiconductor Inc. Data Sheet . Figure 5 shows the MT88L70 + - ...
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... C 1 DTMF Input X-tal MT88L70 MT88L70 IN IN- St/GT GS ESt StD Ref INH Q4 PDWN Q3 OSC1 Q2 OSC2 Q1 V TOE SS Figure 6 - Single-Ended Input Configuration 7 Zarlink Semiconductor Inc. Data Sheet NOTES: = 100 kΩ ± 300 kΩ ± 100 nF ± X-tal = 3.579545 MHz ±0. 3.0V + 20% / -10% DD ...
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... Min. Typ DDQ 0.465V TSt DD 8 Zarlink Semiconductor Inc. Data Sheet Min. Max -0 -65 +150 500 ) unless otherwise stated. SS Max. Units Test Conditions 3.6 V °C +85 MHz % ° ≤ +85 C, unless otherwise stated. O Max. Units Test Conditions µA 10 PWDN ...
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... Typ. Max. I 100 PSRR 50 CMRR VOL 100 1 Zarlink Semiconductor Inc. Data Sheet ° ≤ +85 C, unless otherwise stated. O Max. Units Test Conditions V +0. load load 0.4 V OUT 3.6 V, OUT load kΩ ° C, unless otherwise stated. Units Test Conditions ≤ V ≤ ...
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... MT88L70 ° C ≤ 3.0 V +20%/-10 - Sym Min. Typ -34 15.4 ±1.5% ± ±3.5% -16 -12 +22 ± 2%. 10 Zarlink Semiconductor Inc. Data Sheet ° ≤ +85 C, using Test Circuit shown in Fig ‡ Max Units Notes* -4.0 dBm 1,2,3,5,6,9 489 mV Min @ V =3.6 V RMS DD Max @ V DD ...
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... REC PStD t QStD t PTE t PTD 3.5759 3.5795 3.5831 C t LHCL t HLCL Zarlink Semiconductor Inc. Data Sheet ° C, using Test Circuit shown in Figure 6. ‡ Typ. Max. Units Conditions Note 1 4 8.5 ms Note Note 2 ms Note Note 2 ms Note 2 µs 11 TOE=V DD µs 20 TOE=V DD µ ...
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... TIME TO DETECT THE ABSENCE OF VALID DTMF SIGNALS GUARD TIME, TONE PRESENT. GTP t GUARD TIME, TONE ABSENT. GTA MT88L70 REC ID TONE TONE # GTA GTP QStD # n t PSrD -Q TO ITS HIGH IMPEDANCE STATE Figure 7 - Timing Diagram 12 Zarlink Semiconductor Inc. Data Sheet TONE # HIGH IMPEDANCE # ( PTE t PTD TSt ...
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... Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned ...