MICRF507 Datasheet, PDF (39/46 Pages) Micrel Semiconductor – 470MHz to 510MHz Low-Power FSK Transceiver with +10dBm Power Amplifier

Micrel, Inc.
MICRF507
Detailed Description of Programming Bits
ADR # BIT # Name
0000000 7 By_LNA
Description
LNA bypass on/off
6
5
4
3
2
1
0
0000001 7
6
5
4
3
2
1
0
0000010 7
6
5
4
3
2
1
0
0000011 7
6
5
4
3
2
1
0
0000100 7
6
5
4
3
2
1
PA2
PA1
PA0
Sync_en
Mode1
Mode0
Load_en
Modulation1
Modulation0
OL_opamp_en
PA_LDc_en
RSSI_en
LD_en
PF_FC1
PF_FC0
CP_HI
SC_by
VCO_by
PA_by
OUTS3
OUTS2
OUTS1
OUTS0
IFBias_s
IFA_HG
VCO_Bias_s
VCO_IB2
VCO_IB1
VCO_IB0
VCO_freq1
VCO_freq0
Mod_F2
Mod_F1
Mod_F0
Mod_I4
Mod_I3
Mod_I2
Mod_I1
Power amplifier level, 3.bit
Power amplifier level, 2.bit
Power amplifier level, 1.bit
Synchronizer Mode bit
Main Mode selection 2.bit
Main Mode selection 1.bit
“1” mandatory
Modulation selection 2.bit
Modulation selection 1.bit
“0” mandatory
“0” mandatory. PA on/off controlled by Lock Detect pin
if this bit is 1
RSSI function on/off
Lock detect function on/off
Pre-filter corner frequency 2.bit
Pre-filter corner frequency 1.bit
High charge-pump current (4x=500uA) on/off
Bypass of Switched Capacitor filter on/off
“0” mandatory. Bypass of VCO stage on/off
Bypass of PA stage on/off
Test pins output 4.bit
Test pins output 3.bit
Test pins output 2.bit
Test pins output 1.bit
“1” mandatory.
“1” mandatory.High gain setting in preamplifier
“0” mandatory.Select separate bias for VCO on
VCOBias pin
VCO bias current setting, 3. bit (111 = highest current)
VCO bias current setting, 2. bit (100 = typical current)
VCO bias current setting, 1. bit
Frequency setting of VCO, 2. bit (11=highest
frequency)
Frequency setting of VCO, 1.bit
Modulator filter setting, MSB
Modulator filter setting
Modulator filter setting, LSB
Modulator current setting, MSB
Modulator current setting
Modulator current setting
Modulator current setting
Comments
Reference Table 17
Reference Table 17
Reference Table 17
Reference Table 7
Reference Table 20
Reference Table 20
Reference Table 18
Reference Table 18
Reference Table 14
Reference Table 14
Reference Table 28
Reference Table 28
Reference Table 28
Reference Table 28
Reference Table 11
Reference Table 11
Reference Table 11
Reference Table 11
Reference Table 11
March 2010
39
M9999-032210-B