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ADM3311EARS Datasheet(PDF) 7 Page - Analog Devices |
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ADM3311EARS Datasheet(HTML) 7 Page - Analog Devices |
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7 / 16 page  REV. G ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E –7– PIN FUNCTION DESCRIPTIONS Mnemonic Function VCC Power Supply Input 2.7 V to 3.6 V. V+ Internally Generated Positive Supply, 7.25 V (6.5 V nominal for ADM3310E, ADM3315E). Capacitor C4 is connected between VCC and V+. V– Internally Generated Positive Supply, –7.25 V (–6.5 V nominal for ADM3310E, ADM3315E). Capacitor C5 is connected between GND and V–. GND Ground Pin. Must be connected to 0 V. C1+, C1– External Capacitor 1 is connected between these pins. A 0.1 mF capacitor is recommended, but larger capacitors up to 1 mF may be used. C2+, C2– External Capacitor 2 is connected between these pins. A 0.1 mF capacitor is recommended, but larger capacitors up to 1 mF may be used. C3+, C3– External Capacitor 3 is connected between these pins. A 0.1 mF capacitor is recommended, but larger capacitors up to 1 mF may be used. TIN Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 k W pull-up resistor to VCC is connected on each input. TOUT Transmitter (Driver) Outputs. Typically ±5.5 V (±6.4 V for ADM3311E and ADM3312E) RIN Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 k W pull-down resistor (22 kW for ADM3315E) to GND is connected on each of these inputs. ROUT Receiver Outputs. These are TTL/CMOS levels. EN Receiver Enable. A high level three-states all the receiver outputs. SD Shutdown Control. A high level disables the charge pump and reduces the quiescent current to less than 1 mA. All transmitters and most receivers are disabled. One receiver remains active in shutdown (two receivers active in shutdown for the ADM3310E). • ADM3307E ROUT3 active in shutdown • ADM3310E ROUT4 and ROUT5 active in shutdown • ADM3311E ROUT5 active in shutdown • ADM3312E ROUT3 active in shutdown • ADM3315E ROUT3 active in shutdown Table I. ADM3307E Truth Table SD EN Status TOUT1–5 ROUT1–2 ROUT3 00 Normal Enabled Enabled Enabled Operation 01 Normal Enabled Disabled Disabled Operation 10 Shutdown Disabled Disabled Enabled 11 Shutdown Disabled Disabled Disabled Table II. ADM3310E Truth Table SD EN Status TOUT1–3 ROUT1–3 ROUT4–5 00 Normal Enabled Enabled Enabled Operation 01 Receivers Enabled Disabled Disabled Disabled 10 Shutdown Disabled Disabled Enabled 11 Shutdown Disabled Disabled Disabled Table IV. ADM3312E/ADM3315E Truth Table SD EN Status TOUT1–3 ROUT1–2 ROUT3 00 Normal Enabled Enabled Enabled Operation 01 Normal Enabled Disabled Disabled Operation 10 Shutdown Disabled Disabled Enabled 11 Shutdown Disabled Disabled Disabled Table III. ADM3311 Truth Table SD EN Status TOUT1–3 ROUT1–4 ROUT5 00 Normal Enabled Enabled Enabled Operation 01 Receivers Enabled Disabled Disabled Disabled 10 Shutdown Disabled Disabled Enabled 11 Shutdown Disabled Disabled Disabled |
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