F159V datasheet(60/78 Pages) RENESAS

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May 15, 2020

F159V Datasheet

Table 55. 4-Bit Charge Pump Current

Decimal Bit 3 Bit 2 Bit 1 Bit 0

Definition

Set current for 0.31mA

Set current for 0.63mA

Set current for 0.94mA (default)

Set current for 1.25mA

Set current for 1.56mA

Set current for 1.88mA

Set current for 2.19mA

Set current for 2.50mA

Set current for 2.81mA

Set current for 3.13mA

Set current for 3.44mA

Set current for 3.75mA

Set current for 4.06mA

Set current for 4.38mA

Set current for 4.69mA

Set current for 5.00mA

24.2.26. Register 25 (19h)

This register controls the LO power levels for the modulator and external LO port. Each power level defaults to 0dBm. If needed, the modulator

LO power can be increased by setting a 1 bit word. Bits 5 to 7 are unused. The register default is 5 = 05h = 0000_0101b.

Table 56. Register 25: Bit Definition

Bit

Bit Field Name

Default

Definition

LO_Out_Pwr[0]

Bit 0 of a 2-bit word to set the LO power to the modulator (see Table 57).

LO_Out_Pwr[1]

Bit 1 of a 2-bit word to set the LO power to the modulator (see Table 57).

LO_SW_Out_Pwr[0]

Bit 0 of a 2-bit word to set LO power to the external port (see Table 58).

LO_SW_Out_Pwr[1]

Bit 1 of a 2-bit word to set LO power to the external port (see Table 58).

LO_Out_Pwr_extra

If this bit is set for logic HIGH, then the LO predriver increases the output power to the

modulator. The addition power is different for each of the LO_Out_Pwr settings.

If this bit is set for logic LOW (default), then the LO predriver will not increase the output power.

Unused.

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