MICRF507 datasheet(44/47 Pages) MICREL

44 / 47 page

Micrel, Inc.

MICRF507

October 2, 2013

Revision 2.2

Category

Field Name

Number

of Bits

Location

of Bits

Description

Reference

XCOtune

Reg9[4:0]

Crystal oscillator trimming

RefClk_K

Reg7[5:0]

Reference clock divider

BitRate_clkS

Reg6[0],

Reg7[7:6]

Bitrate clock setting

Mod_clkS

Reg6[6:4]

Modulator clock setting

BitSync_clkS

Reg6[3:1]

BitSync clock setting

DataI/F

Sync_en

Reg0[3]

Synchronizer Mode bit

Table 7

Reg13[3:0],

Reg14[7:0]

M0 counter

Reg10[5:0]

A0 counter

Reg11[3:0],

Reg12[7:0]

N0 counter

Reg18[3:0],

Reg19[7:0]

M1 counter

Reg15[5:0]

A1 counter

Reg16[3:0],

Reg17[7:0]

N1 counter

CP_HI

Reg2[7]

High charge pump current (500

μA = 4x) on/off

VCO_Freq

Reg3[1:0]

Frequency setting of VCO (highest frequency at 11)

VCO_IB

Reg3[4:2]

VCO bias current setting (highest current at 111, 100

typical)

LD_en

Reg1[2]

Lock detect function on/off

By_LNA

Reg0[7]

LNA bypass on/off

PF_FC

Reg1[1:0]

Pre-filter corner frequency

Table 14

SC_by

Reg2[6]

Bypass of switched capacitor filter on/off

ScClk

Reg8[4:0]

Switched Cap clock divider

RSSI_en

Reg1[3]

RSSI function on/off

FEEC

Reg21[3:0]

FEE control bits

Table 15

FEE

Reg22[7:0]

FEE value (read only)

Modulation

Reg1[7:6]

Modulation selection

Table 18

Mod_I

Reg4[4:0]

Modulator current setting

Mod_A

Reg5[3:0]

Modulator attenuator setting

Mod_F

Reg4[7:5]

Modulator filter setting

Reg0[6:4]

Power amplifier level

Table 17

PA_by

Reg2[4]

Bypass of PA stage on/off

System

Mode

Reg0[2:1]

Main mode selection

Table 20

OUTS

Reg2[3:0]

Test pins output

Table 28

Table 27. Register Fields

MICRF507 Datasheet(PDF) 44 Page - Micrel Semiconductor

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