74HCT4046AD NXP Semiconductors, 74HCT4046AD Datasheet - Page 28

• Manufacturer Part Number: 74HCT4046AD
• Description: IC, 74HCT CMOS, SMD, 74HCT4046
• Manufacturer: NXP Semiconductors

Specifications of 74HCT4046AD

• Pll Type: VCO
• Frequency: 21MHz
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC (18-Jun-2010)
• Operating: RoHS Compliant
• Supply Current: 8µA
• Rohs Compliant: Yes
• Base Number: 74

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;