74HCT9046A
74HCT9046A is PLL with bandgap controlled VCO manufactured by Philips Semiconductors.
INTEGRATED CIRCUITS
DATA SHEET
74HCT9046A PLL with bandgap controlled VCO
Product specification Supersedes data of March 1994 File under Integrated Circuits, IC06 1999 Jan 11
Philips Semiconductors
Product specification
PLL with bandgap controlled VCO
Features
- Low power consumption
- Centre frequency up to 17 MHz (typ.) at VCC = 5.5 V
- Choice of two phase parators(1):
- EXCLUSIVE-OR (PC1)
- Edge-triggered JK flip-flop (PC2)
- No dead zone of PC2
- Charge pump output on PC2, whose current is set by an external resistor Rb
- Centre frequency tolerance ±10%
- Excellent voltage-controlled-oscillator (VCO) linearity
- Low frequency drift with supply voltage and temperature variations
- On chip bandgap reference
- Glitch free operation of VCO, even at very low frequencies
- Inhibit control for ON/OFF keying and for low standby power consumption
- Operation power supply voltage range 4.5 to 5.5 V
- Zero voltage offset due to op-amp buffering
- Output capability: standard
- ICC category: MSI. APPLICATIONS
- FM modulation and demodulation where a small centre frequency tolerance is essential
- Frequency synthesis and multiplication where a low jitter is required (e.g. Video picture-in-picture)
- Frequency discrimination
(1) Rb connected between pin 15 and ground: PC2 mode, with PCPOUT at pin 2. Pin 15 left open or connected to VCC: PC1 mode with PC1OUT at pin 2.
GENERAL DESCRIPTION The 74HCT9046A is a high-speed Si-gate CMOS device. It is specified in pliance with “JEDEC standard no....
