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| 74HCT9046A Datasheet, PDF (3/40 Pages) NXP Semiconductors – PLL with bandgap controlled VCO | |||
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Philips Semiconductors
PLL with bandgap controlled VCO
PINNING
SYMBOL PIN
DESCRIPTION
GND
1 ground (0 V) (phase comparators)
PC1OUT/
PCPOUT
COMPIN
VCOOUT
INH
2 phase comparator 1 output/phase
comparator pulse output
3 comparator input
4 VCO output
5 inhibit input
C1A
C1B
GND
6 capacitor C1 connection A
7 capacitor C1 connection B
8 ground (0 V) (VCO)
VCOIN
DEMOUT
R1
9 VCO input
10 demodulator output
11 resistor R1 connection
R2
12 resistor R2 connection
PC2OUT
SIGIN
Rb
VCC
13 phase comparator 2 output
(current source adjustable with Rb)
14 signal input
15 bias resistor (Rb) connection
16 supply voltage
LOGIC/FUNCTIONAL SYMBOLS AND DIAGRAMS
Product speciï¬cation
74HCT9046A
GND 1
PC1OUT /
PCPOUT
2
COMP IN 3
VCO OUT 4
INH 5
C1 A 6
C1 B 7
GND 8
9046A
16 V CC
15 R b
14 SIG IN
13 PC2 OUT
12 R2
11 R1
10 DEM OUT
9 VCO IN
MBD037 - 1
Fig.1 Pin configuration.
3
COMP IN
PC1OUT /
2
PCPOUT
14
SIG IN
Φ
15
Rb
PC2 OUT
13
6
C1 A
7
C1 B
11 R1
12
R2
VCO OUT
4
VCO
9
VCO IN
DEM OUT
10
5
INH
MBD038 - 1
Φ
PLL
9046A
3
COMP IN
PC1OUT /
PCPOUT
2
14
SIG IN
PC2 OUT
13
6
C1 A
7
C1 B
11
R1
12
R2
DEM OUT
10
15
Rb
VCO OUT
4
9
VCO IN
5
INH
MBD039 - 1
Fig.2 Logic symbol.
1999 Jan 11
Fig.3 IEC logic symbol.
3
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