UMA1005T Philips Semiconductors (Acquired by NXP), UMA1005T Datasheet - Page 3

• Manufacturer Part Number: UMA1005T
• Description: Dual Low-power Frequency Synthesizer
• Manufacturer: Philips Semiconductors (Acquired by NXP)

/1 page = 296 mm (Datasheet)
Philips Semiconductors
BLOCK DIAGRAM
November 1994
Dual low-power frequency synthesizer
STROBE
CLOCK
DATA
INM1
INM2
INR
INA
4
5
6
2
3
7
8
EM + EA
EM
EA
UMA1005T
PA
2
4 1
PR
REFERENCE DIVIDER
12
MAIN DIVIDERS
12
NA
NM1
12
NR
SERIAL INPUT + PROGRAM LATCHES
AUXILIARY DIVIDER
NM2
NM3
8
Fig.1 Block diagram.
2
2
EM
SM
SA
EA
NM4
4
REFERENCE
REFERENCE
3
DETECTOR
DETECTOR
AUXILIARY
AUXILIARY
SELECT
SELECT
PHASE
PHASE
MAIN
MAIN
2
FMOD
ACCUMULATOR
2
FRACTIONAL
2
V DDD
2
1
FRD
3
NF
V DDA
2
8
2
4
CN
CK
CL
14
PRESCALER
FEEDBACK
AUXILIARY
SPEED-UP
INTEGRAL
NORMAL
CHARGE
CHARGE
CHARGE
CHARGE
V SS
OUTPUT
OUTPUT
OUTPUT
OUTPUT
PUMP
PUMP
PUMP
PUMP
20
Preliminary specification
V SSA
12
11
17
18
19
16
15
13
10
UMA1005T
9
MEA668 - 1
PHI
FB1
FB2
RF
RN
PHP
RA
PHA
LOCK
27 mm