74HCT9046A Datasheet, PDF (3/43 Pages) NXP Semiconductors – PLL with bandgap controlled VCO

NXP Semiconductors
5. Block diagram
74HCT9046A
PLL with band gap controlled VCO
f_out
C1
f_in
V_CC
C1A
C1B VCO_OUT COMP_IN SIG_IN
6
7
4
3
14
16
9046A
R2 12
R2
R1 11
R1
VCO
PHASE
COMPARATOR
1
PC1_OUT/
2 ^PCP_OUT
PHASE
COMPARATOR
2
13 PC2_OUT
15 RB
Rbias
R3
R4
C2
5
10
9
8
INH
DEM_OUT VCO_IN
GND
Rs
1
GND
Fig 1. Block diagram
6. Functional diagram
mbd040
3
COMP_IN
PC1_OUT/
PCP_OUT
2
14 SIG_IN
Φ
15
RB
PC2_OUT 13
6
C1A
7
C1B
VCO_OUT 4
11
R1
12
R2
VCO
9
VCO_IN
DEM_OUT 10
5
INH
mbd038
Fig 2. Logic symbol
Φ
PLL
9046A
3
COMP_IN
PC1_OUT/
PCP_OUT
2
14
SIG_IN
PC2_OUT
13
6
C1A
7
C1B
11
R1
12
R2
DEM_OUT
10
15
RB
VCO_OUT
4
9
VCO_IN
5
INH
mbd039
Fig 3. IEC logic symbol
74HCT9046A_6
Product data sheet
Rev. 06 — 15 September 2009
© NXP B.V. 2009. All rights reserved.
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