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AD9142ABCPZ 数据表(PDF) 57 Page - Analog Devices |
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AD9142ABCPZ 数据表(HTML) 57 Page - Analog Devices |
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57 / 73 page  AD9142A Data Sheet DAC CLOCK RECEIVER CONTROL REGISTER Address: 0x10, Reset: 0xFF, Name: DACCLK_RECEIVER_CTRL Table 40. Bit Descriptions for DACCLK_RECEIVER_CTRL Bits Bit Name Settings Description Reset Access 7 DACCLK_DUTYCYCLE_CORRECTION Enables duty cycle correction at the DACCLK input. For best performance, the default and recommended status is turned on. 1 RW 6 Reserved Must write the default value for optimal performance 1 RW 5 DACCLK_CROSSPOINT_CTRL_ENABLE Enables crosspoint control at the DACCLK input. For best performance, the default and recommended status is turned on. 1 RW [4:0] DACCLK_CROSSPOINT_LEVEL A twos complement value. For best performance, it is recommended to set DACCLK_CROSSPOINT_LEVEL to the default value. 0x1F RW 01111 Highest crosspoint. 11111 Lowest crosspoint. REF CLOCK RECEIVER CONTROL REGISTER Address: 0x11, Reset: 0x5F, Name: REFCLK_RECEIVER_CTRL Table 41. Bit Descriptions for REFCLK_RECEIVER_CTRL Bits Bit Name Settings Description Reset Access 7 DUTYCYCLE_CORRECTION Enables duty cycle correction at the REFx/SYNCx input. For best performance, the default and recommended status is turned off. 0 RW 6 Reserved Must write the default value for optimal performance 1 RW 5 REFCLK_CROSSPOINT_CTRL_ENABLE Enables crosspoint control at the REFx/SYNCx input. For best performance, the default and recommended status is turned off. 0 RW [4:0] REFCLK_CROSSPOINT_LEVEL A twos complement value. For best performance, it is recommended to set REFCLK_CROSSPOINT_LEVEL to the default value. 0x1F RW 01111 Highest crosspoint. 11111 Lowest crosspoint. PLL CONTROL 0 REGISTER Address: 0x12, Reset: 0x00, Name: PLL_CTRL0 Table 42. Bit Descriptions for PLL_CTRL0 Bits Bit Name Settings Description Reset Access 7 PLL_ENABLE Enables PLL clock multiplier. 0 RW 6 AUTO_MANUAL_SEL PLL band selection mode. 0 RW 0 Automatic mode. 1 Manual mode. [5:0] PLL_MANUAL_BAND PLL band setting in manual mode. 64 bands in total, covering a 1 GHz to 2.1 GHz VCO range. 0x00 RW 000000 Lowest band (1 GHz). 111111 Highest band (2.1 GHz). Rev. A | Page 56 of 72 |
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