Micrel
Table 6: Power amplifier bit
MICRF506BML/YML
PA2
0
0
0
0
1
1
1
1
PA1
0
0
1
1
0
0
1
1
PA0
0
1
0
1
0
1
0
1
State
21dB attenuation/PA off
18dB attenuation
15dB attenuation
12dB attenuation
9dB attenuation
6dB attenuation
3dB attenuation
Max output
PALDc_en
0
1
PA_By
0
1
PA is turned off by PA2=PA1=PA0=0
PA is turned on/off by Lock Detect, LD=1 -> PA on
PA2=PA1=PA0=0 now gives 21dB attenuation
Power Amplifier enabled
Power Amplifier bypassed, approx 20dB reduced output power.
Table 7:Generation of Bitrate_clk, BitSync_clk and Mod_clk .
BitRate_clk
BitSync_clk
Mod_clk
Clock frequency
(F is crystal frequency, K
is RefClk integer)
S2
S1
S0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
F/(64K)
F/(32K)
F/(16K)
F/(8K)
F/(4K)
F/(2K)
F/K (*)
F (*)
(*) Can not be used as BitRate_clk.
Table 8: Test signals
OutS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
OutS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
OutS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
OutS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
IchOut
Gnd
Ip mixer
Qp mixer
Ip IFamp
Qp IFamp
Ip SC-filter
Qp SC-filter
Ip mixer
Qp mixer
Ip mixer
Qp mixer
Ip mixer
Ip IFamp
Ip SC-filter
I limiter
N-div
QchOut
Gnd
In mixer
Qn mixer
In IFamp
Qn IFamp
In SC-filter
Qn SC-filter
In mixer
Qn mixer
In mixer
Qn mixer
Qp mixer
Qp IFamp
Qp SC-filter
Q limiter
M-div
Ichout2 / RSSI
Gnd
Ip IFamp
Qp IFamp
Ip SC-filter
Qp SC-filter
Gnd
Gnd
Ip SC-filter
Qp SC-filter
Gnd
Gnd
ModIn
TI1
DemodUp
Demod
Phi1n
QchOut2 / NC
Gnd
In IFamp
Qn IFamp
In SC-filter
Qn SC-filter
I limiter
Q limiter
In SC-filter
Qn SC-filter
I limiter
Q limiter
PrescalMode
TQ1
DemodDn
MAout
Phi2n
July 2006
41
M9999-092904
+1 408-944-0800
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