UMA1015M NXP Semiconductors, UMA1015M Datasheet - Page 6

• Manufacturer Part Number: UMA1015M
• Description: Low-power Dual Frequency Synthesizer For Radio Communications
• Manufacturer: NXP Semiconductors

Table 2 Bit allocation
Note
1. The test register should not be programmed with any other values except all zeros for normal operation.
Table 3 Bit allocation description
Table 4 Out-of-lock select
Table 5 Charge pump current ratio
p1
dt16
X
MA16
0
MB16
sPDA, sPDB
P3, P2, P1 and P0
VDON
OLA, OLB
CRA, CRB
SR
FIRST
CRA/CRB
SYMBOL
OLA
p2
dt15 dt14
X
0
0
0
1
1
0
1
p3
VDON PO
0
software power-down for synthesizers A and B (0 = power-down)
bits output to pins 1, 2, 9 and 19 (1 = high impedance)
voltage doubler enable (1 = doubler enabled)
out-of-lock select; selects signal output to pin 19 (see Table 4)
charge pump A/B current to I
reference frequency ratio select (see Table 6)
p4
dt13 dt12
0
p5
OLA
SR
OLB
0
1
0
1
p6
OLB
R11
SYNTHESIZER A MAIN DIVIDER COEFFICIENT
SYNTHESIZER B MAIN DIVIDER COEFFICIENT
CURRENT AT PUMP
I
I
CP
CP
p7
CRA CRB X
= 12
= 24
P0
lock status of loop B; OOLB
lock status of loop A; OOLA
logic OR function of loops A and B
RESERVED FOR TEST
p8
I
I
SET
SET
SET
DATA FIELD
ratio select (see Table 5)
p9
REFERENCE DIVIDER COEFFICIENT
REGISTER BIT ALLOCATION
p10
X
p11
sPDA sPDB P3
(1)
Table 6 Reference division ratio
DESCRIPTION
p12
SR
0
1
OUTPUT AT PIN 19
p13
dt4
p14
dt3
P2
SYNTHESIZER A
p15
dt2
P1
R
R
p16
dt1
X
p17
dt0
X
MA0
R0
MB0
p18
0
0
0
0
0
SYNTHESIZER B
p19
ADDRESS
0
1
1
1
0
2R
R
p20
0
0
0
1
0
LAST
p21
1
0
1
0
0