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SA7025 Datasheet(PDF) 4 Page - NXP Semiconductors

Part # SA7025
Description  Low-voltage 1GHz fractional-N synthesizer
PDF  22 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SA7025 Datasheet(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
SA7025
1GHz low-voltage Fractional-N synthesizer
1996 Aug 6
4
BLOCK DIAGRAM
SERIAL INPUT + PROGRAM LATCHES
MAIN DIVIDERS
PRESCALER
MODULUS
NORMAL
OUTPUT
CHARGE
PUMP
INTEGRAL
OUTPUT
CHARGE
PUMP
AUXILIARY
OUTPUT
CHARGE
PUMP
MAIN
PHASE
DETECTOR
MAIN
REFERENCE
SELECT
SPEED-UP
OUTPUT
CHARGE
PUMP
REFERENCE DIVIDER
÷2
÷2
÷2
AUXILIARY
REFERENCE
SELECT
AUXILIARY
PHASE
DETECTOR
AUXILIARY DIVIDER
1/4
DATA
CLOCK
STROBE
RFIN
RFIN
REFIN
AUXIN
FB
RF
RN
PHP
PHI
RA
PHA
LOCK
VDD
VDDA
VSS
VSSA
EM
PR
NM1
NM2
NM3
FMOD
NF
2
12
8
3
FRD
CN
8
2
2
EM
NR
EM+EA
12
SA
EA
PA
NA
2
4
SM
EA
2
CK
CL
2
12
FRACTIONAL
ACCUMULATOR
64/65/72
FB
TEST
VCCP
PRESCALER
2
CONTROL
PRESCALER
SR00601
Figure 2. Block Diagram



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