74HCT9046AD NXP Semiconductors, 74HCT9046AD Datasheet - Page 10

• Manufacturer Part Number: 74HCT9046AD
• Description: Phase Locked Loops (PLL) PHASE LOCKED LOOP W/VCO
• Manufacturer: NXP Semiconductors
• Type: PLLr

Specifications of 74HCT9046AD

• Number Of Circuits: 1
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Package / Case: SOIC-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74HCT9046AD,112

NXP Semiconductors
74HCT9046A_6
Product data sheet
Fig 8.
Fig 9.
a. At every
a. Current transfer
closed simultaneously for a short period (typically
15 ns).
The current switch charge pump output of PC2
Phase comparator 2 current and voltage transfer characteristics
pump current
+I
I
cp
cp
0
=
2
approximately 15 ns
PC_IN
pulse overlap of
, even at zero
When the frequencies of SIG_IN and COMP_IN are equal but the phase of SIG_IN leads
that of COMP_IN, the up output driver at PC2_OUT is held ‘ON’ for a time corresponding
to the phase difference (
down or sink driver is held ‘ON’.
--------- -
I
2
cp
up
down
PC_IN
0
I
I
cp
cp
PC_IN
both switches are
001aak442
PC2_OUT
V
CC
mbd046
+2
C2
Rev. 06 — 15 September 2009
PC_IN
). When the phase of SIG_IN lags that of COMP_IN, the
V
DEM_OUT(AV)
b. Comparable voltage-controlled switch
b. Voltage transfer. This transfer can be observed at
PC2_OUT by connecting a resistor (R = 10 k )
between PC2_OUT and 0.5V
V
0.5V
DEM _OUT
down
V
PC_IN
CC
CC
up
0
2
=
V
PLL with band gap controlled VCO
CC
=
V
SIG_IN
PC2_OUT
R3'
I cp
74HCT9046A
–
0
=
COMP_IN
----- -
4
5
PC_IN
CC
C2
PC2_OUT
VC2_OUT
© NXP B.V. 2009. All rights reserved.
.
PC_IN
mbd099
+2
001aak443
I cp
10 of 43
R