74HCT9046AN Philips, 74HCT9046AN Datasheet
74HCT9046AN
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74HCT9046AN Summary of contents
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DATA SHEET 74HCT9046A PLL with bandgap controlled VCO Product specification Supersedes data of March 1994 File under Integrated Circuits, IC06 INTEGRATED CIRCUITS 1999 Jan 11 ...
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... Applies to the phase comparator section only (inhibit = HIGH). For power dissipation of the VCO and demodulator sections see Figs 26 to 28. ORDERING INFORMATION EXTENDED TYPE NUMBER PINS 74HCT9046AN 16 74HCT9046AD Product specification 74HCT9046A GENERAL DESCRIPTION The 74HCT9046A is a high-speed Si-gate CMOS device ...
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... Philips Semiconductors PLL with bandgap controlled VCO PINNING SYMBOL PIN DESCRIPTION GND 1 ground (0 V) (phase comparators) PC1 / 2 phase comparator 1 output/phase OUT PCP comparator pulse output OUT COMP 3 comparator input IN VCO 4 VCO output OUT INH 5 inhibit input C1 6 capacitor C1 connection capacitor C1 connection B ...
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... Philips Semiconductors PLL with bandgap controlled VCO INH 1999 Jan 11 COMP IN SIG VCO OUT COMPARATOR VCO COMPARATOR 10 9 DEM OUT VCO Fig.4 Functional diagram. 4 Product specification 74HCT9046A 9046A PC1 / OUT PCP OUT ...
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Acrobat reader. white to force landscape pages to be ... VCO OUT V ref2 R2 12 VCO ...
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... Philips Semiconductors PLL with bandgap controlled VCO FUNCTIONAL DESCRIPTION The 74HCT9046A is a phase-locked-loop circuit that comprises a linear VCO and two different phase comparators (PC1 and PC2) with a common signal input amplifier and a common comparator input (see Fig.4). The signal input can ...
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... Philips Semiconductors PLL with bandgap controlled VCO Phase comparators The signal input (SIG ) can be IN directly coupled to the self-biasing amplifier at pin 14, provided that the signal swing is between the standard HC family input logic levels. Capacitive coupling is required for signals with smaller swings. ...
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... Philips Semiconductors PLL with bandgap controlled VCO ---------- - DEMOUT PC1OUT SIGIN = – PCIN SIGIN COMPIN Fig.6 Phase comparator 1; average output voltage as a function of input phase difference. Fig.7 Typical waveforms for PLL using phase comparator 1; loop-locked at f 1999 Jan DEMOUT(AV) ...
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... Philips Semiconductors PLL with bandgap controlled VCO The pump current I is independent P from the supply voltage and is set by the internal bandgap reference of 2 ------- - the external bias resistor b between pin 15 and ground. The current and voltage transfer function of PC2 are shown in Fig.9. ...
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... Philips Semiconductors PLL with bandgap controlled VCO up down = PCIN pulse overlap of approximately every , even at zero both switches are closed simultaneously for a short period (typically 15 ns). b. Comparable voltage-controlled switch PCIN a. Two kinds of transfer functions may be regarded The current transfer: ...
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... Philips Semiconductors PLL with bandgap controlled VCO SIG IN COMP IN VCO OUT UP DOWN CURRENT AT PC2 OUT PC2 /VCO OUT IN PCP OUT The pulse overlap of the up and down signals (typically 15 ns). 2.75 VCO IN 2.50 (1) 2. Response with traditional voltage-switch charge-pump PC2 (1) Due to parasitic capacitance on PC2 (2) Backlash time (dead zone) ...
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... Philips Semiconductors PLL with bandgap controlled VCO LOOP FILTER COMPONENT SELECTION INPUT ------ - Amplitude characteristic ---------------------------- - Pole zero diagram INPUT ------ - Amplitude characteristic: ...
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... Philips Semiconductors PLL with bandgap controlled VCO RECOMMENDED OPERATING CONDITIONS FOR 74HCT SYMBOL PARAMETER V DC supply voltage input voltage output voltage O T operating ambient temperature amb input rise and fall times (pin LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134); voltages are referenced to GND (ground = 0 V). ...
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... Philips Semiconductors PLL with bandgap controlled VCO DC CHARACTERISTICS FOR 74HCT Voltages are referenced to GND (ground = 0 V). SYMBOL PARAMETER MIN. Phase comparator section V DC coupled 3.15 IH HIGH level input voltage SIG , IN COMP coupled LOW IL level input voltage SIG , IN COMP IN V HIGH level 4 ...
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... Philips Semiconductors PLL with bandgap controlled VCO SYMBOL PARAMETER MIN. VCO section DC coupled 2 HIGH level input voltage INH V DC coupled LOW IL level input voltage INH V HIGH level 4.4 OH output voltage VCO OUT 3.98 V LOW level OL output voltage VCO OUT V LOW level OL output voltage ...
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... Philips Semiconductors PLL with bandgap controlled VCO SYMBOL PARAMETER MIN. Demodulator section R resistance offset voltage OFF VCO DEMOUT R dynamic output D resistance at DEM OUT Quiescent supply current I quiescent supply CC current (disabled) I additional CC quiescent supply current per input pin for unit load coeffi ...
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... Philips Semiconductors PLL with bandgap controlled VCO self-bias operating point Fig.14 Typical input resistance curve at SIG COMP . 4 1/2 V 0.25 1 Fig.16 Input current at SIG self-bias point. I 1999 Jan 11 MBD108 ( 1/ MGA957 = 5 OFF (mV) 4 ...
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... Philips Semiconductors PLL with bandgap controlled VCO AC CHARACTERISTICS FOR 74HCT GND = ns pF SYMBOL PARAMETER Phase comparator section t /t propagation delay PHL PLH SIG , COMP PC1 OUT t /t propagation delay PHL PLH SIG , COMP PCP ...
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... Philips Semiconductors PLL with bandgap controlled VCO SYMBOL PARAMETER VCO section f/T frequency stability with temperature change f centre frequency c tolerance f VCO centre c frequency (duty factor = 50%) f VCO frequency VCO linearity duty factor at VCO VCO OUT 1999 Jan amb + +85 MIN. ...
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... Philips Semiconductors PLL with bandgap controlled VCO SIG IN INPUTS PCP OUT OUTPUTS MBD106 1 ( GND Fig.18 Waveforms showing input (SIG the output transition times. SIG IN INPUT COMP IN INPUT PC2 OUT OUTPUT 1 ( GND Fig ...
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... Philips Semiconductors PLL with bandgap controlled VCO 20 f (%) 100 pF 100 pF. Fig.20 Frequency stability of the VCO as a function of ambient temperature with supply voltage as a parameter (%) 300 100 pF. ...
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... Philips Semiconductors PLL with bandgap controlled VCO 8 f (%) 100 pF 300 100 pF. Fig.22 Frequency stability of the VCO as a function of ambient temperature with supply voltage as a parameter. 1999 Jan 11 MBD118 10 f (%) ...
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... Philips Semiconductors PLL with bandgap controlled VCO 30 f VCO (MHz 4 5 800 handbook, halfpage f VCO (kHz 5 600 4.5 V 400 200 100 nF 300 pF 300 100 nF. ...
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... Philips Semiconductors PLL with bandgap controlled VCO min 1/ -------------- - – linearity --------------- - 100 Fig.24 Definition of VCO frequency linearity 0.5 V over the 5 ...
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... Philips Semiconductors PLL with bandgap controlled VCO DEM ( 4 5 Fig.28 Typical power dissipation. Table 3 Design considerations for VCO section. PHASE SUBJECT COMPARATOR VCO frequency without extra offset PC1, PC2 PC1 PC2 VCO frequency with extra offset ...
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... Philips Semiconductors PLL with bandgap controlled VCO f VCO f max min f VCO f max min f off a. Operating without offset centre frequency Operating with offset centre frequency 1999 Jan 11 1 0.6f L 1 frequency lock range frequency lock range. ...
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... Philips Semiconductors PLL with bandgap controlled VCO Filter design considerations for PC1 and PC2 of the HCT9046A Figure 30 shows some examples of passive and active filters to be used with the phase comparators of the HCT9046A. Transfer functions of phase comparators and filters are given in Table 4. ...
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... Philips Semiconductors PLL with bandgap controlled VCO PC1 CIRCUIT PC2 R3' R4 AR3 R3' A 1999 Jan 11 AMPLITUDE CHARACTERISTIC 1 1 ...
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... Philips Semiconductors PLL with bandgap controlled VCO General design consideration. SUBJECT PLL locks on harmonics at PC1 centre frequency PC2 PC1 Noise rejection at signal input PC2 PC1 AC ripple content when PLL is locked PC2 1999 Jan 11 PHASE COMPARATOR yes no high low large ripple content at ...
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... Philips Semiconductors PLL with bandgap controlled VCO (Hz 150 300 INH = GND; T VCOIN 2 CC Fig.31 Typical value of VCO centre frequency (f 1999 Jan ...
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... Philips Semiconductors PLL with bandgap controlled VCO off (Hz 150 300 INH = GND; T VCOIN 2 CC Fig.32 Typical value of frequency offset as a function of C1. 1999 Jan ...
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... Philips Semiconductors PLL with bandgap controlled VCO (Hz ------------------------------------ - range VCOIN 1.1) V. VCOIN CC Fig.33 Typical frequency lock range 2f 1999 Jan function of the product R1 and C1. ...
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... Philips Semiconductors PLL with bandgap controlled VCO PLL design example The frequency synthesizer used in the design example shown in Fig.34 has the following parameters: Output frequency: 2 MHz to 3 MHz. Frequency steps: 100 kHz. Settling time: 1 ms. Overshoot: <20%. The open loop gain is: ...
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... Philips Semiconductors PLL with bandgap controlled VCO OSCILLATOR DIVIDE BY 10 "HCU04" 1 MHz 100 pF 2550 . 600 . C2 = 470 nF nF. (1) R3' = fictive resistance R b R3' = ------ - 17 1.6 1.4 ( 1.2 1.0 0.8 0.6 0.4 0 Fig.35 Type 2, second order frequency step response. 1999 Jan 11 ...
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... Philips Semiconductors PLL with bandgap controlled VCO 3.1 proportional to output frequency (MHz) 3.0 N stepped from 2.9 step input 2.1 N stepped from 2.0 1.9 0 0.5 Fig.36 Frequency compared to the time response. 1999 Jan 11 Since the output frequency is proportional to the VCO control voltage, the PLL frequency response can be observed with an oscilloscope by monitoring pin 9 of the VCO ...
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... Philips Semiconductors PLL with bandgap controlled VCO PACKAGE OUTLINES DIP16: plastic dual in-line package; 16 leads (300 mil); long body pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. mm 4.7 0.51 3.7 inches 0.19 0.020 0.15 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. ...
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... Philips Semiconductors PLL with bandgap controlled VCO SO16: plastic small outline package; 16 leads; body width 3 pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.25 1.45 mm 1.75 0.25 0.10 1.25 0.010 0.057 inches 0.069 0.01 0.004 0.049 Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. ...
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... Philips Semiconductors PLL with bandgap controlled VCO SOLDERING Introduction This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). There is no soldering method that is ideal for all IC packages ...
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... These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. ...
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... Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...