MV8870 Zarlink Semiconductor, MV8870 Datasheet
MV8870
Related parts for MV8870
MV8870 Summary of contents
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This product is obsolete. This information is available for your convenience only. For more information on Zarlink’s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/ ...
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... MV8870 / MV8870-1 The MV8870 / MV8870 complete DTMF receiver integrating both the bandsplit filter and digital decoder functions, fabricated in GPS’s double-poly ISO2-CMOS technology. The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone pairs into a 4-bit code ...
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... FUNCTIONAL DESCRIPTION The MV8870 / MV8870-1 monolithic DTMF receiver offers small size, low power consumption and high performance. Its architecture consists of a bandsplit filter section, which separates the high and low tone groups, followed by a digital counting section which verifies the frequency and duration of the received tones before passing the corresponding code to the output bus ...
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APPLICATIONS A simple application circuit is shown in Fig.7. This has a symmetric guard time circuit, a single-ended analog input and a dedicated crystal oscillator. GUARD TIME ADJUSTMENT In many situations not requiring seperate selection of tone duration and interdigit ...
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... Figure 6: Functional decode table MV8870/ MV8870 IN- St/ REF 5 SEL OSC1 8 OSC2 TOE MV8870/ R1 MV8870 GTA t GTP R = R1R2 P < Figure 8b: Guard time adjustment (t GTP GTA SELECT = ...
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... Fig.9 shows the differential configuration. In this circuit gain is adjusted through the feedback resistor R5. CRYSTAL OSCILLATOR The internal clock circuit is completed with the addition of an external 3.58MHz crystal which is normally connected as shown in Fig. 7. However it is possible to configure several MV8870 / MV8870-1 devices to use only a single oscillator crystal ...
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PIN DESCRIPTIONS (Note 1) Symbol Pin no Pin name and description IN+, 1 (1) In Plus and Minus (Voltage Inputs). These are respectively the non-inverting and inverting (2) inputs to the front-end op-amp. The DTMF input is ...
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... Value (MV8870-1) Min Typ Max Mln 3.0 7.0 3 100 7.5 15.0 2.2 2.35 2.5 2.2 TSt 0.03 OL 4.97 OH 1.0 2.5 1.0 0.4 0.8 0.4 2.4 2.7 2.4 REF 10.0 10.0 REF 7.0 15.0 P Value (MV8870-1) Min Typ Max Units 4.75 5.0 5.25 V -40 +25 +80 ˚C Unlts Conditions Typ Max 3.579545MHZ 0 3.0 7 1.5 V 100 PIN 7.5 15 PIN 2.35 2 Load 4 ...
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... Value (MV8870) Value (MV8870-1) Min Typ Max Min 100 VOL 1.5 C 4.5 O 100 OUT 50 50 OUT Value (MV8870 and MV8870-1) Symbol Min Typ f 3.579 3.579545 110 110 Units Conditions Typ Max kHz ...
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... FA -2.0 + 2.0 -2.0 -5.0 -3.5 FRL 3.5 5.0 . 3.5 FRH P -16 ITT P - DTT 0.5 4.0 8 2%. Value (MV8870/MV8870-1) Symbol Min Typ Max PSID t 3.4 QSID PTE t 300 PTD Units Notes Typ Max 2458 p-p 10 dBm 30 p-p -37 ...
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... Voltages are with respect to the negative power supply (V Value (MV8870) Symbol . Min Max V +6 MAX MAX T -65 +150 STG P 1000† QStD PStD t PTD ) SS Value (MV8870-1) Units Mln Max +6 -65 +150 C 1000† mW ...
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... SWEDEN Johanneshov Tel 702 97 70 Fax 640 47 36 • UK, EIRE, DENMARK, FINLAND & NORWAY Swindon Tel: (0793) 518510 Fax : (0793) 518582 These are supported by Agents and Distributors in major countries world-wide. GEC Plessey Semiconductors 1993 Publication No. DS 3140 Issue No. 2.1 September 1993 MV8870/MV8870-1 11 ...