SA7026DK Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
SA7026DK Datasheet PDF : 14 Pages
| |||
Philips Semiconductors
1.3GHz low voltage fractional-N dual synthesizer
Objective specification
SA7026
17
CLOCK
18
DATA
2–BIT SHIFT
REGISTER
19
STROBE
ADDRESS DECODER
22–BIT SHIFT
REGISTER
CONTROL
LATCH
LOAD SIGNALS
RFin+
RFin–
5
6
AMP
16
REFin+
REFin–
15
LATCH
MAIN DIVIDER
LATCH
REFERENCE
DIVIDER
SM
2 222
SA
GND
4
PUMP
CURRENT
SETTING
PUMP
BIAS
COMP
PHASE
DETECTOR
VDDCP
13
14
RSET
7
GNDCP
8
PHP
9
PHI
PUMP
BIAS
1
LOCK
12
AUXin
TEST
AMP
2
LATCH
AUX DIVIDER
PHASE
DETECTOR
3
VDD
Figure 2. Block Diagram
10
GNDCP
11
PHA
20
PON
SR01496
PINNING
SYMBOL
LOCK
TEST
VDD
GND
RFin+
RFin–
GNDCP
PHP
PHI
GNDCP
PIN
DESCRIPTION
1 Lock detect output
2 Test
3 Digital supply
4 Digital ground
5 RF positive input to main divider
6 RF negative input to main divider
7 Charge pump ground
8 Main NORMAL chargepump
9 Main INTEGRAL chargepump
10 Charge Pump Ground
SYMBOL
PHA
AUXin
VDDCP
RSET
REFin–
REFin+
CLOCK
DATA
STROBE
PON
PIN
DESCRIPTION
11 Auxiliary chargepump output
12 Input to auxiliary divider
13 Charge pump supply voltage
14 External resistor from this pin to ground
sets the chargepump current
15 Reference input
16 Reference input
17 Programming bus clock input
18 Programming bus data input
19 Programming bus enable input
20 Power down control
1998 Oct 13
3
Share Link: 