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W91510AN Datasheet(PDF) 3 Page - Winbond |
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W91510AN Datasheet(HTML) 3 Page - Winbond |
3 / 16 page W91510N SERIES Publication Release Date: May 1997 - 3 - Revision A2 Pin Description, continued SYMBOL 18-PIN 20-PIN I/O FUNCTION MODE 13 15 I Pulling mode pin to VSS places the dialer in tone mode. Pulling mode pin to VDD places the dialer in pulse mode (10 ppS; 20 ppS for W91511N/511AN, M/B = 40:60). Floating mode pin places the dialer in pulse mode (10 ppS; 20 ppS for W91511N/511AN, M/B = 33.3:66.7). HKS 10 12 I Hook switch input. HKS = VDD: On-hook state. Chip in sleeping mode, no operation. HKS = VSS: Off-hook state. Chip is enabled for normal operation. HKS pin is pulled to VDD by an internal resistor. DP 11 13 O N-channel open drain dialing pulse output. Flash key will cause DP to be active in either tone mode or pulse mode. The timing diagram for pulse mode is shown in Figure 1(a, b, c). VDD, VSS 14, 6 16, 6 I Power input pins. KT 5 5 O Key-tone signal output. The key tone is generated for all valid keys. Frequency is 600 Hz and duration is 35 mS. DTMF 12 14 O In pulse mode, this pin remains in low state at all times. In tone mode, it will output a dual or single tone. Detailed timing diagram for tone mode is shown in Figure 2(a, b, c). Specified Actual Error % Output Frequency R1 R2 R3 R4 C1 C2 C3 697 770 852 941 1209 1336 1477 699 766 848 948 1216 1332 1472 +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34 |
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