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AD1984JCPZ Datasheet(PDF) 10 Page - Analog Devices |
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AD1984JCPZ Datasheet(HTML) 10 Page - Analog Devices |
10 / 20 page Rev. 0 | Page 10 of 20 | January 2007 AD1984 Table 3. AD1984 Pin Descriptions Mnemonic Pin No. I/O Description DIGITAL INTERFACE SDATA_OUT BIT_CLK SDATA_IN SYNC RESET 5 6 8 10 11 I I I/O I I Link Serial Data Output. AD1984 input stream. Clocked on both edges of the BIT_CLK. Link Bit Clock. 24.000 MHz serial data clock . Link Serial Data Input. AD1984 output stream clocked only on one edge of BIT_CLK. Link Frame Sync. Link Reset. AD1984 master hardware reset. DIGITAL I/O DM_1/DM_2 DM_3/DM_4 DM_CLK GPIO_2 GPIO_1/MIC_BIAS-E GPIO_0/EAPD S/PDIF_OUT 2 4 46 30 31 47 48 I I O I/O I/O I/O O Digital microphone 1 and 2 inputs (for bi-phase microphones), or digital microphone 1 input (for single-phase microphones). Digital microphone 3 and 4 inputs (for bi-phase microphones), or digital microphone 2 input (for single-phase microphones). Clock to drive external digital microphones. General Purpose Input/Output Pins. Digital signals used to control or sense external circuitry. General Purpose I/O/Microphone Bias for Port E. Capable of Hi-Z, 1.65 V, and 2.86 V. Pin 31 shares functionality between GPIO_1 (default) and MIC_BIAS_E. These functions are mutually exclusive and the GPIO function takes priority over the MIC_BIAS function. When the GPIO enable bit is 0, Pin 31 functions as a MIC_BIAS pin associated with Port E. EAPD/General Purpose Input/Output pin. Pin 47 shares functionality between GPIO_0 and EAPD. These functions are mutually exclusive and the EAPD function takes priority over the GPIO function. By default, the pin is in a Hi-Z state. External resistors should be used to insure the proper circuit state when this pin is in Hi-Z. S/PDIF_OUT – Supports S/PDIF output. JACK SENSE AND EAPD SENSE_A/SRC_B SENSE_B/SRC_A 13 34 I/O I/O Jack Sense A-D Input/Sense B drive. Jack Sense E-F Input/Sense A drive. ANALOG I/O PCBEEP Port E_L Port E_R Port F_L Port F_R CD_GND Port B_L Port B_R Port C_L Port C_R MONO_OUT Port D_L Port D_R Port A_L Port A_R 12 14 15 16 17 19 21 22 23 24 32 35 36 39 41 LI LI, MIC, LO LI, MIC, LO LI, LO LI, LO I LI, MIC LI, MIC LI, MIC LI, MIC LO HP, LO HP, LO HP, LO HP, LO Monaural Input from system for Analog PCBeep. Auxiliary Input/Output Left Channel. Auxiliary Input/Output Right Channel. Auxiliary Input/Output Left Channel. Auxiliary Input/Output Right Channel. CD-Audio-Analog-Ground-Reference. Must be connected to AGND via a 0.1 μF capacitor if not in use as CD_GND. MUST always be ac coupled. Front Panel Stereo MIC/Line-In. Front Panel Stereo MIC/Line-In. Rear Panel Stereo MIC/Line-In. Rear Panel Stereo MIC/Line-In. Monaural Output to Internal Speaker or Telephony Subsystem Speakerphone. Rear Panel Headphone/Line-Out. Rear Panel Headphone/Line-Out. Front Panel Headphone/Line-Out. Front Panel Headphone/Line-Out. The symbols used in this table are defined as: I = Input, O = Output, LI = Line Level Input, LO = Line Level Output, HP = Output capable of driving headphone load, MIC = Input supports microphones with MIC bias and boost amplifier. |
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