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TPA0312PWPR Folha de dados(PDF) 3 Page - Texas Instruments |
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TPA0312PWPR Folha de dados(HTML) 3 Page - Texas Instruments |
3 / 37 page www.ti.com TPA0312 SLOS335A – DECEMBER 2000 – REVISED OCTOBER 2004 TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. BYPASS 11 Tap to voltage divider for internal mid-supply bias generator GAIN0 2 I Bit 0 of gain control GAIN1 3 I Bit 1 of gain control 1, 12, 13, GND Ground connection for circuitry. Connected to the thermal pad. 24 LHPIN 6 I Left-channel headphone input, selected when SE/BTL is held high LIN 10 I Common left input for fully differential input. AC ground for single-ended inputs. LLINEIN 5 I Left-channel line input, selected when SE/BTL is held low LOUT+ 4 O Left-channel positive output in BTL mode and positive output in SE mode LOUT- 9 O Left-channel negative output in BTL mode and high-impedance in SE mode The input for PC Beep mode. PC-BEEP is enabled when a > 1.5-V (peak-to-peak) square wave is input PC-BEEP 14 I to PC-BEEP HP/LINE is the input MUX control input. When the HP/LINE terminal is held high, the headphone inputs HP/LINE 17 I (LHPIN or RHPIN [6, 20]) are active. When the HP/LINE terminal is held low, the line inputs (LLINEIN or RLINEIN [5, 23]) are active. PVDD 7, 18 I Power supply for output stage RHPIN 20 I Right-channel headphone input, selected when SE/BTL is held high RIN 8 I Common right input for fully differential input. AC ground for single-ended inputs. RLINEIN 23 I Right-channel line input, selected when SE/BTL is held low ROUT+ 21 O Right-channel positive output in BTL mode and positive output in SE mode ROUT- 16 O Right-channel negative output in BTL mode and high-impedance in SE mode SHUTDOWN 22 I Places entire IC in shutdown mode when held low, except PC-BEEP remains active SE/BTL 15 I Hold SE/BTL low for BTL mode and hold high for SE mode. VDD 19 I Analog VDD input supply. This terminal needs to be isolated from PVDD to achieve highest performance. Connect to ground. Must be soldered down in all applications to properly secure the device on the PC Thermal Pad board. 3 |
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