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ZL49021DAA1 Datasheet(PDF) 9 Page - Zarlink Semiconductor Inc |
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ZL49021DAA1 Datasheet(HTML) 9 Page - Zarlink Semiconductor Inc |
9 / 15 page ZL49010/11, ZL49020/21, ZL49030/31 Data Sheet 9 Zarlink Semiconductor Inc. ‡ Typical figures are at 25 °C and are for design aid only: not guaranteed and not subject to production testing * Test Conditions 1. dBm refers to a reference power of 1 mW delivered into a 600 ohms load. 2. Data sequence consists of all DTMF digits. 3. Tone on = 40 ms, tone off = 40 ms. 4. Signal condition consists of nominal DTMF frequencies. 5. Both tones in composite signal have an equal amplitude. 6. Tone pair is deviated by ±1.5%± 2 Hz. 7. Bandwidth limited (0-3 kHz) Gaussian noise. 8. Precise dial tone frequencies are 350 Hz and 440 Hz ( ± 2%). 9. Referenced to lowest level frequency component in DTMF signal. 10. Referenced to the minimum valid accept level. 11. Both tones must be within valid input signal range. 12. Internal guard time for ZL490x1 = 20 ms. 13. Timing parameters are measured with 70 pF load at SD output. 14. Time duration between PWDN pin changes from ‘1‘ to ‘0‘ and ESt/DStD becomes active. 15. Guaranteed by design and characterization. Not subject to production testing. 16. Value measured with an applied tone of 450 Hz. AC Electrical Characteristics - voltages are with respect to V DD=5V±5%, VSS=0V and temperature -40 to +85°C unless otherwise stated. Characteristics Sym. Min. Typ.‡ Max. Units Test Conditions* 1 Valid input signal level (each tone of composite signal) -50 2.45 0 775 dBm mVRMS 1,2,3,5,6,12 2 Positive twist accept 8 dB 1,2,3,4,11,12,15 3 Negative twist accept 8 dB 1,2,3,4,11,12,15 4 Frequency deviation accept ±1.5%± 2Hz 1,2,3,5,12 5 Frequency deviation reject ±3.5% 1,2,3,5,12,15 6 Third tone tolerance -16 dB 1,2,3,4,5,12 7 Noise tolerance -12 dB 7,9,12 8 Dial tone tolerance +15 dB 8,10,12 9 Supervisory tones detect level (Total power) -35 dBm 16 10 Supervisory tones reject level -50 dBm 16 11 Energy detector attack time tSA 1.0 6.5 ms 16 12 Energy detector decay time tSD 325 ms 16 13a 13b Powerdown time Powerup time 10 30 50 ms ms ms IDDQ ≤ 100 µA ZL49010/ZL49030 ZL49011/ZL49031 Note 14 14 Tone present detect time (ESt logic output) tDP 3 13 20 ms ZL490x0 15 Tone absent detect time (ESt logic output) tDA 3 15 ms ZL490x0 16 Tone duration accept (DStD logic output) tREC 40 ms ZL490x1 17 Tone duration reject (DStD logic output) tREC 20 ms ZL490x1 18 Interdigit pause accept (DStD logic output) tID 40 ms ZL490x1 19 Interdigit pause reject (DStD logic output) tDO 20 ms ZL490x1 20 Data shift rate 40-60% duty cycle fACK 1.0 3.0 MHz 13,15 21 Propagation delay (ACK to Data Bit) tPAD 100 140 ns 1MHz fACK, 13,15 22 Data hold time (ACK to SD) tDH 30 50 ns 13,15 |
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