74HCT9046A Datasheet PDF - NXP Semiconductors
| Part Number | 74HCT9046A | |
| Description | PLL | |
| Manufacturers | NXP Semiconductors | |
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74HCT9046A
PLL with band gap controlled VCO
Rev. 7 — 29 February 2016
Product data sheet
1. General description
The 74HCT9046A. This device features reduced input threshold levels to allow interfacing
to TTL logic levels. Inputs also include clamp diodes, this enables the use of current
limiting resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
Operation power supply voltage range from 4.5 V to 5.5 V
Low power consumption
Complies with JEDEC standard no. 7A
Inhibit control for ON/OFF keying and for low standby power consumption
center frequency up to 17 MHz (typical) at VCC = 5.5 V
Choice of two phase comparators:
PC1: EXCLUSIVE-OR
PC2: Edge-triggered JK flip-flop
No dead zone of PC2
Charge pump output on PC2, whose current is set by an external resistor Rbias
center frequency tolerance 10 %
Excellent Voltage Controlled Oscillator (VCO) linearity
Low frequency drift with supply voltage and temperature variations
On-chip band gap reference
Glitch free operation of VCO, even at very low frequencies
Zero voltage offset due to operational amplifier buffering
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
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NXP Semiconductors
74HCT9046A
PLL with band gap controlled VCO
7. Pinning information
7.1 Pinning
*1'
3&B2873&3B287
&203B,1
9&2B287
,1+
&$
&%
*1'
Fig 5. Pin configuration
+&7 $
9&&
5%
6,*B,1
3&B287
5
5
'(0B287
9&2B,1
DDH
7.2 Pin description
Table 2. Pin description
Symbol
Pin
GND
1
PC1_OUT/PCP_OUT
2
COMP_IN
3
VCO_OUT
4
INH 5
C1A 6
C1B 7
GND
8
VCO_IN
9
DEM_OUT
10
R1 11
R2 12
PC2_OUT
13
SIG_IN
14
RB 15
VCC 16
Description
ground (0 V) of phase comparators
phase comparator 1 output or phase comparator pulse output
comparator input
VCO output
inhibit input
capacitor C1 connection A
capacitor C1 connection B
ground (0 V) VCO
VCO input
demodulator output
resistor R1 connection
resistor R2 connection
phase comparator 2 output; current source adjustable with Rbias
signal input
bias resistor (Rbias) connection
supply voltage
74HCT9046A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 29 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ 74HCT9046A.PDF Datasheet ] | |
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