74HCT4046ADB NXP Semiconductors, 74HCT4046ADB Datasheet - Page 28

• Manufacturer Part Number: 74HCT4046ADB
• Description: Phase Locked Loops (PLL) PHASE LOCKED LOOP W/VCO
• Manufacturer: NXP Semiconductors
• Type: PLLr

Specifications of 74HCT4046ADB

• 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: 4.5 V to 5.5 V
• Package / Case: SSOP-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74HCT4046ADB,112

Philips Semiconductors
1997 Nov 25
Phase-locked-loop with VCO
To obtain optimum VCO performance, C1 must be as small as possible but larger than 100 pF.
Interpolation for various values of R1 can be easily calculated because a constant R1C1 product will produce almost the same VCO output frequency.
Fig.29 Typical value of VCO centre frequency (f
T
amb
= 25 C.
o
) as a function of C1: R2 = ; V
28
VCOIN
74HC/HCT4046A
= 1/2 V
Product specification
CC
; INH = GND;