UMA1016XT Datasheet, PDF (6/16 Pages) NXP Semiconductors – Frequency synthesizer for radio communication equipment

Philips Semiconductors
Frequency synthesizer for
radio communication equipment
Product specification
UMA1016xT
Table 1 Main divider division ratio
MD1
MD2
../..
LSB
MAIN COUNTER
MD7
MD8
../..
MD12
MD13
MSB
Table 2 Operation of phase comparator
SYMBOL
UP
DO
I_pcd
F_ref < F_var
0
1
−1.75 mA
F_ref > F_var
1
0
+1.75 mA
F_ref = F_var
0
0
<±5 nA
Table 3 Register and latch bit allocations
FIRST
REGISTER AND LATCH BIT ALLOCATIONS
LAST IN
pb14 pb13 pb12 pb11 pb10 pb9 pb8 pb7⁽¹⁾ pb6 pb5 pb4 pb3 pb2 pb1 pb0
md13 md12 md11 md10 md9 md8 md7 X md6 md5 md4 md3 md2 md1 address
Note
1. pb7; see Section “Main control interface”.
handbook, full pagewidth
VCC
on/off
var
UP
1.75 mA
PHASE AND
FREQUENCY
DETECTOR
pump output
on/off
ref
DO
1.75 mA
AGND
MGA194
Fig.3 Phase comparator block diagram.
1995 Jul 12
6