RF2053 datasheet(21/36 Pages) RFMD

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RF2053

DS140110

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support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

CFG3 (O2h) - PLL Calibration

CFG4 (O3h) - Crystal Oscillator and Reference Divider

Bit Name

Default

Function

TKV1

Settling time for first measurement in LO KV compensation

TKV2

Settling time for second measurement in LO KV compensation

FLL_FACT

Default setting 01. Needs to be set to 00 for N<28. This case can arise when higher phase

detector frequencies are used.

1CT_CPOL

REFSTBY

Reference oscillator standby mode 0=XO is off in standby mode, 1=XO is on in standby mode

Bit Name

Default

Function

CLK_DIV

Reference divider, divide by 2 (010) to 7 (111) when reference divider is enabled

CLK_DIV_BYPASS 1

Reference divider enabled=0, divider bypass (divide by 1)=1

XO_CT

Crystal oscillator coarse tune (approximately 0.5pF steps from 8pF to 16pF)

XO_I2

Crystal oscillator current setting

XO_I1

XO_CR_S

Crystal oscillator additional fixed capacitance (approximately 0.25pF)

TCT

Duration of coarse tune acquisition

RF2053 Datasheet(PDF) 21 Page - RF Micro Devices