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W91561DLNF Datasheet(PDF) 4 Page - Winbond |
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W91561DLNF Datasheet(HTML) 4 Page - Winbond |
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4 / 33 page  Preliminary W91560DN SERIES - 4 - Pin Description, continued SYM. PIN NO. I/O FUNCTION MODE 12 I Pulling the mode pin to VSS places the dialer in tone mode. Pulling the mode pin to VDD places the dialer in pulse mode (10 ppS, M/B = 2:3). Floating the mode pin places the dialer in pulse mode (10 ppS, M/B = 1:2). HFI , HFO 25, 10 I, O Handfree control pins. A low pulse on the HFI input pin toggles the handfree control state. Status of the handfree control is listed in the following table: CURRENT STATE Input HFO Dialing High Yes On Hook High Low No Off Hook High Low Yes On Hook Off Hook Low Yes Off Hook Low On Hook Low No Off Hook High On Hook High Yes Low Hook SW. HFO NEXT STATE HFI HFI HFI HFI pin is pulled to VDD by internal resistor. Detailed timing diagrams are shown in Figure 4(a), 4(b). DP / C6 11 O This pin is a CMOS N-channel open drain output. The flash key will cause DP to go active in either pulse mode or tone mode. In lock mode, the DP keeps low for 300 mS during off-hook delay time. The timing diagram is shown as Figure 1(a), 1(b), 1(c), 1(d). DTMF 6 O In pulse mode, this pin remains in low state at all times. In tone mode, it will output a dual or single tone. The detailed timing diagram for tone mode is shown in Figure 2(a), 2(b), 2(c), 2(d). Specified Actual Error % Output Frequency +0.28 R1 R2 R3 R4 C1 C2 C3 697 770 852 941 1209 1336 1477 699 766 848 948 1216 1332 1472 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34 VLCD 29 O Power supply pin for LCD driver. A 0.1 µF capacitor is connected between VLCD and VSS. |
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Similar Description - W91561DLNF |
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