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LMH0387SL Datasheet(PDF) 16 Page - Texas Instruments |
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LMH0387SL Datasheet(HTML) 16 Page - Texas Instruments |
16 / 23 page ![]() LMH0387 SNLS315G – APRIL 2010 – REVISED APRIL 2013 www.ti.com SPI Registers Table 1. SPI Registers Address R/W Name Bits Field Default Description 00h R/W General Control 7 Carrier Detect Read only. 0: No carrier detected on BNC_IO pin. 1: Carrier detected on BNC_IO pin. 6 Mute 0 0: Normal operation. 1: Equalizer outputs muted. 5 Reserved 0 Reserved as 0. Always write 0 to this bit. 4:3 Sleep Mode 01 Equalizer sleep mode control. Sleep has precedence over Mute. 00: Never sleep. Disable sleep mode (force equalizer to stay enabled). 01: Auto sleep. Sleep mode active when no input signal detected. 10: Force sleep. Force equalizer into sleep mode (powered down) regardless of whether there is an input signal or not. 11: Reserved. 2 Extended 3G Reach Mode 0 Extended 3G reach mode to extend the equalizable cable length for 2.97 Gbps applications. 0: Normal operation. 1: Extended 3G reach mode. 1:0 Reserved 00 Reserved as 00. Always write 00 to these bits. 01h R/W Output Driver 7:5 Output Swing 011 Equalizer output driver swing (VSSP-P). 000: VSSP-P = 400 mVP-P. 001: VSSP-P = 500 mVP-P. 010: VSSP-P = 600 mVP-P. 011: VSSP-P = 700 mVP-P. 100: VSSP-P = 800 mVP-P. 101, 110, 111: Reserved. 4:2 Offset Voltage 001 Equalizer output driver offset voltage (common mode voltage). 000: VOS = 1.05V. 001: VOS = 1.25V. 010: VOS = 1.45V. 011: VOS = 1.65V. 100: VOS = 1.85V. 101: VOS referenced to positive supply. 110, 111: Reserved. 1:0 Reserved 00 Reserved as 00. Always write 00 to these bits. 16 Submit Documentation Feedback Copyright © 2010–2013, Texas Instruments Incorporated Product Folder Links: LMH0387 |
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