Micrel MICRF505BML/YML
August 2006 42
M9999-092904
+1 408-944-0800
Table 6: Power amplifier bit
PA2 PA1 PA0
State
0 0 0
21dB attenuation/PA off
0 0 1
18dB attenuation
0 1 0
15dB attenuation
0 1 1
12dB attenuation
1 0 0
9dB attenuation
1 0 1
6dB attenuation
1 1 0
3dB attenuation
1 1 1
Max output
PALDc_en
0 PA is turned off by PA2=PA1=PA0=0
1
PA is turned on/off by Lock Detect, LD=1 -> PA on
PA2=PA1=PA0=0 now gives 21dB attenuation
PA_By
0 Power Amplifier enabled
1 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 F/(64K)
0 0 1 F/(32K)
0 1 0 F/(16K)
0 1 1 F/(8K)
1 0 0 F/(4K)
1 0 1 F/(2K)
1 1 0 F/K (*)
1 1 1 F (*)
(*) Can not be used as BitRate_clk.
Table 8: Test signals
OutS3 OutS2 OutS1 OutS0 IchOut QchOut Ichout2 / RSSI QchOut2 / NC
0 0 0 0 Gnd Gnd Gnd Gnd
0 0 0 1 Ip mixer In mixer Ip IFamp In IFamp
0 0 1 0 Qp mixer Qn mixer Qp IFamp Qn IFamp
0 0 1 1 Ip IFamp In IFamp Ip SC-filter In SC-filter
0 1 0 0 Qp IFamp Qn IFamp Qp SC-filter Qn SC-filter
0 1 0 1 Ip SC-filter In SC-filter Gnd I limiter
0 1 1 0 Qp SC-filter Qn SC-filter Gnd Q limiter
0 1 1 1 Ip mixer In mixer Ip SC-filter In SC-filter
1 0 0 0 Qp mixer Qn mixer Qp SC-filter Qn SC-filter
1 0 0 1 Ip mixer In mixer Gnd I limiter
1 0 1 0 Qp mixer Qn mixer Gnd Q limiter
1 0 1 1 Ip mixer Qp mixer ModIn PrescalMode
1 1 0 0 Ip IFamp Qp IFamp TI1 TQ1
1 1 0 1 Ip SC-filter Qp SC-filter DemodUp DemodDn
1 1 1 0 I limiter Q limiter Demod MAout
1 1 1 1 N-div M-div Phi1n Phi2n
