Micrel MICRF505BML/YML
August 2006 43
M9999-092904
+1 408-944-0800
Table 9: PAbuffer bias current setting
PA_IB2 PA_IB1 PA_IB0
State
0 0 0
PAbuffer uses bias current from PTATBias source, external resistor (Pin 2)
0 0 1
PAbuffer uses bias current from separate bias source, external resistor (Pin 8)
0 1 0
PAbuffer uses bias current from internal bias source, lowest current
0 1 1
PAbuffer uses bias current from internal bias source
1 0 0
PAbuffer uses bias current from internal bias source, typical current
1 0 1
PAbuffer uses bias current from internal bias source
1 1 0
PAbuffer uses bias current from internal bias source
1 1 1
PAbuffer uses bias current from internal bias source, highest current
Table 10: Frequency Error Estimation control bit
FEEC_1 FEEC_0 FEE Mode
0 0 Off
0 1 Counting UP pulses
1 0 Counting DN pulses
1 1
Counting UP and DN pulses. UP increments the
counter, DN decrements it.
Table 11: Frequency Error Estimation control bit, cont.
FEEC_3 FEEC_2 No. of DEMOD_DT bit used during the
measurement.
0 0 8
0 1 16
1 0 32
1 1 64
MICREL, INC. 2180 FORTUNE DRIVE, SAN JOSE, CA 95131 US
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel
for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a
product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended
for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a
significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a
Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale.
© 2004 Micrel, Incorporated.
